Rock Art Stability Index Overall Panel Scoring - PowerPoint PPT Presentation

Loading...

PPT – Rock Art Stability Index Overall Panel Scoring PowerPoint presentation | free to download - id: 7e928f-ZWE4Z



Loading


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation
Title:

Rock Art Stability Index Overall Panel Scoring

Description:

... scaling, chalking, graffiti, and salt efflorescence Display Information Rock Art Stability Index Overall Panel Scoring Ron Dorn Arizona State University ... – PowerPoint PPT presentation

Number of Views:95
Avg rating:3.0/5.0
Slides: 30
Provided by: Nicc2
Category:

less

Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Rock Art Stability Index Overall Panel Scoring


1
Rock Art Stability Index Overall Panel Scoring
  • Ron Dorn
  • Arizona State University

2
(No Transcript)
3
(No Transcript)
4
(No Transcript)
5
(No Transcript)
6
(No Transcript)
7
(No Transcript)
8
(No Transcript)
9
Scale and Consistency
10
(No Transcript)
11
Excellent Condition Why?
  • Largest issues are plant growth near panel, some
    scaling of the rock, and detachment of the rock
    varnish
  • Step 6 (Vandalism) is of minor concern because
    site is at the Deer Valley Rock Art Center
  • Basalt talus tends to display very little
    evidence of weathering and erosion

12
(No Transcript)
13
Good Condition Why?
  • Largest issues are plant growth near panel, some
    scaling of the rock, and detachment of the rock
    varnish
  • Step 6 (Vandalism) is of minor concern because
    site is on private land with a site steward
  • Silicified dolomite bedrock has few weaknesses
    for weathering to get a foothold

14
  • Score
  • 28

15
Good ConditionWhy?
  • Largest issues are fissures that are from lava
    flow generation and cooling, and collapse of
    tumuli separating the top layers from the rest of
    the flow
  • Scaling, anthropogenic activity also issues

16
(No Transcript)
17
Problems Why?
  • Despite strong granite rock, abundant fissures
    (joints)
  • Largest issues are granular distintegration,
    fissuresol wedging, undercutting, and lichens
  • Step 6 (Vandalism) is a substantial concern
    because site is in a metropolitan area and is
    receives heavy visitation

18
30 (raw score) 20 50
  • Stage 6
  • could add
  • 20 points
  • to reflect
  • vandalism
  • concern

19
(No Transcript)
20
Problems Why?
  • Largest issues are weakness of the sandstone,
    development and then flaking of the weathering
    rind, and splintering along bedding planes

21
Problems Score 33
22
Why problems with this panel?
  • Large issues are scaling, undercutting
  • Site manager might put this site in great
    danger because of visitor use abrade panels
  • Also flaking, granular disintegration, salt
    efflorescence, detachment of the pictograph paint

23
(No Transcript)
24
Great Dangers Biggest Issues
  • Salt Efflorescence
  • Fluvial Abrasion
  • Flaking of Weak Sandstone

25
(No Transcript)
26
Severe Dangers A host of issues
  • Lots of fissures, weak rock, wedging by
    fissuresols, plant growth, scaling, splintering,
    undercutting, development and erosion of
    weathering rinds, crumbling of rock under
    lichens, granular disintegration, flaking,
    detachment of rock coatings, scaling, chalking,
    graffiti, and salt efflorescence

27
(No Transcript)
28
Display Information
29
Rock Art Stability Index Overall Panel Scoring
Ron Dorn Arizona State University
About PowerShow.com