Trace metals in marine sediments

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Trace metals in marine sediments
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• Study history of pollution in near-urban
  environments
• using 5 m sediment cores study particles size
  and general characteristics 210-Pb profiles,
  metal, OC analyses.
• sedimentation rates
• trace metal concentrations, EF, sources
• metal fluxes

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• Metal profiles in sediment cores
• natural inputs natural events
• modified by anthropogenic inputs
• diagenesis
• trawling
• dredging
• bioturbation
• reclamation

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Map of Victoria Harbour, showing the four
sampling sites (1. SI Stonecutters Island 2.
TSTSF Tsim Sha Tsui Star Ferry 3. KTTS Kwun
Tong Typhoon Shelter 4. CKL Cha Kwo Ling)
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Tsim Sha Tsui Core 1842 Ferry service 1880
Steam launches 1898 Star Ferry Co. 1906
Typhoon. Kowloon Pier destroyed 1905 1916 KCR
construction started huge reclamation at Kowloon
Point
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The first cross-harbour steamboat ferry service,
launched in 1888 and which later became known as
the Star Ferry, was a legacy of Dorabjee Nowrojee
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Thomas Alloms famous print of early Hongkong
from Kowloon, based on a drawing by Captain
Stoddard, R.N.
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Cross-harbour ferries of the Star Ferry Co.
Incorporated in 1898. Ferry services were first
introduced by Abdoolally Ebrahim Co. in
launches between Tsimshatsui and Central.
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Ferry pier, left and Kowloon Public Pier, centre
right, in the 1930s.
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The Star Ferry seen from the same angle today, It
is still a major means of cross-harbour transport.
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A train leaving the Kowloon Canton Railway
station at Tsimshatsui. What is now Salisbury
Road had not been developed. The K.C.R. was
opened in 1911.
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Vibrocore (in 1-m portions) from Tsim Sha Tsui
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Appearance of the sub-sample of KPV26B at 1.0-1.2
in seabed depth range.
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Particle size of Tsim Sha Tsui vibrocore
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Pb-210 dating of Tsim Sha Tsui vibrocore
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Trace and major metal contents in Tsim Sha Tsui
vibrocore
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Normalized metal contents in Tsim Sha Tsui
vibrocore
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Kwun Tong Typhoon Shelter Cores
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The early 1960s were characterized by a
hodgepodge of piston, turbine and pure jetengined
airliners.
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The 3 392-metre long single runway at Kai Tak
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Appearance of the sub-samples of MVC74 at 0-0.4 m
seabed depth range.
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Appearance of the sub-sample of MVC74 at 4.8-5.0
m seabed depth range.
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Plate 3 Appearance of the sub-sample of KPV26B at
5.4-5.6 m seabed depth range.
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Normalized metal contents in the Kwun Tong core