A GIS Mineral Occurrence Database in Support of a Metallogenic Study of the Slave Province

1
A GIS Mineral Occurrence Database in Support of a
Metallogenic Study of the Slave Province
Yellowknife Geoscience Forum - 2004
Brian Hall Jan Peter
Graeme Bonham-Carter Tracy Lynds
2
Others who made a significant contribution to
this study.
Wouter Bleeker (GSC) John Buckle (GSC) Leslie
Chorlton (GSC) Celine Gilbert GSC) Richard
Lisichenko (Fort Hays State U.) Richard Hall
(Consultant)
Elaine Little (INAC) Ted Little (GSC) Ross
Sherlock (GSC) John Taylor (GSC) David Viljoen
(GSC) John Kerswell (GSC)
3
This talk is to provide an overview of the
Mineral Occurrence Compilation Project that is
being undertaken for the Slave and Western
Churchill Provinces. The Beechey Lake Map Sheet
(NTS 76G) is the first in a series of map sheets
that will be completed over the next two years.
The primary data source are the mineral
exploration assessment reports located in the
INAC (Indian Northern Affairs Canada) offices
in Yellowknife and Iqaluit.
4
Location Map for the Beechey
Lake Map Sheet (NTS 76G)
5

• The intent of this project has been to
• Document the mineral occurrences of the Slave and
  Western Churchill Provinces.
• Analyze the spatial distribution of mineral
  deposits in relation to geology, geophysics and
  LandSat imagery using ArcGIS.
• Examine feature to feature relationships both
  within, and between mineral deposit groupings.

6
A spreadsheet consisting of 256 columns
documenting geological and geophysical attributes
has been constructed. In the case of the Beechey
Lake Map Sheet a total of 319 mineral occurrences
and, anomalous areas of geophysics and/or
geochemistry have been documented. This produced
81,664 possible cells of information, of which
approximately 35 are populated, resulting in
approximately 30,000 cells of information.
7
Descriptive Text for the Yava Deposit
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
076G 0304 Yava The Yava deposit lies within the
eastern portion of the Archean Slave Structural
Province. The region is bordered by the Aphebian
age Bear Structural Province to the west, and the
Rae Structural Province to the east. The
principal underlying supracrustal rocks belong to
the Archean Yellowknife Supergroup and consist
mainly of volcanics and metasediments. Archean
intrusive and metamorphic rocks also underlie the
region. Early Proterozoic (Aphebian) clastic
sedimentary and carbonate sequences of the
Goulburn Group unconformably overlie the Archean
rocks locally. Intrusive rocks of Hudsonian age
and younger diabase dykes crosscut the older
lithologies (00220). The Slave Structural
Province, comprising 192.00 square kilometres of
the northwestern part of the Canadian Shield
consists of highly deformed, metamorphosed
Archean Supracrustal rocks and associated
granitoid complexes of varied composition and
age. Yellowknife Supergroup metavolcanic rocks,
which comprise five to ten percent of the Slave
Province, occur in 20 discrete north to northwest
trending belts. The metavolcanic successions
form the basal sequences of the Yellowknife
Supergroup and occur along the margins of
extensive metasedimentary basins, which form 80
to 85 of the supracrustal sequence. Slave
Province Greenstone Belts are elongate in plan,
basin-shaped in cross section, and occur as
homoclinal assemblages facing away from adjacent
granitic rocks. Early Proterozoic (Aphebian)
clastic sedimentary and carbonate sequences of
the Goulburn Group unconformably overlie the
Archean rocks locally. Intrusive rocks of
Hudsonian age and younger diabase dykes crosscut
the older lithologies. The Yellowknife
Supergroup is divided informally into three major
sequences. The Back Group is the lowest sequence
and is comprised of felsic to intermediate flows,
tuffs and breccias. The Hackett River Group
overlies the Back and consists of volcanic flows
that range from felsic to mafic, as well as tuffs
and chemical sediments. The uppermost sequence is
the Beechey
8
Spatial Relationships between the Mineral
Occurrence Information as compared to
geological and geophysical features.
9
Lithologic Legend BEECHEY LAKE 76G
(Legend and maps following are modified from
Frith, R.A. 1986 Frith, R.A. 1982)
10
Deposit Status
11
Major Commodity
12
Frequency of Deposit Types
Number of samples
13
Deposit Type
14
Gold Grades for Deposit Types
15
Gold Grade (Rock Samples)
16
Deposit Shape
17
A very preliminary interpretation for some of
the Spatial Relationships
18
Gold Occurrence Clusters
Clusters that appear to fit a relationship
A cluster that requires an explanation
19
Structure Related Gold Occurrences
20
Sketch Map of the George Lake Area (modified
from Jefferson et al. 1992, which in turn was
modified from internal reports from Trigg,
Woollett, Olson Consulting Limited)
McCoy High Strain Zone
Komatik Break
21
Structure Related Gold Occurrences
Komatik Break?
22
Intrusion Related Gold Occurrences
23
VMS Occurrence Clusters
Cluster of five or more VMS Bimodal occurrences
24
Relationship of the Yava Deposit to the Sandy
Hill Pluton
Sandy Hill Pluton
25
Other Locations for Synvolcanic Intrusives
within the Hackett River Group
Hamimor Gneiss Complex
Sandy Hill Pluton
Mallery Rapids Anticlinorium
Cluster of five or more VMS Bimodal occurrences
26
Other ways of viewing the Spatial Relationships
for the Mineral Occurrence Information
27
Topography
28
LandSat Imagery
29
Total Field Magnetics
30
Vertical Gradient Magnetics
31
Vertical Gradient Magnetics
32
2nd Derivative Vertical Gradient Magnetics
33
Gravity
34
Feature to Feature relationships for the Iron
Formation Hosted Gold Occurrences
35
Frequency of Silicate Oxide Facies as a
Function of Gold Grade
36
Frequency of Quartz Veining as a Function of Gold
Grade
37
Frequency of Bedding Parallel Quartz Veins as a
Function of Gold Grade
38
Frequency of Discordant Quartz Veins as a
Function of Gold Grade
39
Frequency of Other Quartz Vein Features as a
Function of Gold Grade
40
Pyrite, Pyrrhotite Arsenopyrite Frequency as a
Function of Gold Grade
41
Frequency of Chalcopyrite as a Function of Gold
Grade
42
Feature to Feature relationships for the
Turbidite Hosted Gold Occurrences
43
Frequency of Quartz Veining as a Function of Gold
Grade
44
Frequency of Bedding Parallel Quartz Veins as a
Function of Gold Grade
45
Frequency of Discordant Quartz Veins as a
Function of Gold Grade
46
Frequency of Grey Quartz Veins as a Function of
Gold Grade
47
Frequency of Multiphase Quartz Veins as a
Function of Gold Grade
48
Pyrite, Pyrrhotite Arsenopyrite Frequency as a
Function of Gold Grade
49
Frequency of Chalcopyrite as a Function of Gold
Grade
50
A PROSPECTORS GUIDE TO Iron Formation Hosted
Gold Deposits
Good

• Bedding Parallel Quartz Veins
• Discordant Quartz Veins
• Chalcopyrite

Poor

• Pyrrhotite

51
A PROSPECTORS GUIDE TO Tubidite Hosted Gold
Deposits
Good

• Bedding Parallel Quartz Veins
• Multiphase Quartz Veins
• Arsenopyrite

Poor

• Discordant Quartz Veins