Download Tuesday 1150 H.Thorleifson - Geological Specification

IC GS
Introduction to the
geological specification
Harvey Thorleifson,
Association of American State Geologists
Harvey Thorleifson, 13 March 2007
Geological maps
 an essential service
CLIMATE CHANGE
 we require geological
mapping to fulfill our
objectives
NGDC
Climate change: the need for geological mapping
 geology explains earth system linkages, climate
processes, & carbon sources/sinks
 geology guides work on natural records that document
variability, drivers, extreme events, & regional impacts
 geology will guide carbon capture and storage by deep
geologic sequestration
 geology identifies thresholds & vulnerabilities in
coastal zone dynamics, sea level change, permafrost
degradation, reduced glacier cover, groundwater quality
and quantity, flooding, dust storms and landslides
 geological mapping plays an essential role
in addressing the full range of human needs
• Heritage
• Health
• Security
• Wealth
Role of geological mapping
• Heritage
Earth
Oceans
Land
Life
Role of geological mapping
• Health
Toxic substances
Waste disposal
Role of geological mapping
• Security
Hazards
Role of geological mapping
• Wealth
Materials
Energy
Engineering
Role of geological mapping
• Water
 Heritage
Aquatic ecosystem integrity
Role of geological mapping
• Water
 Health
 groundwater protection
 source water composition
Role of geological mapping
• Water
Security
Flooding
Shoreline erosion
Role of geological mapping
• Water
 Wealth
 water resources
Role of geological mapping
• Heritage
• Health
• Security
• Wealth
an essential service
1:25M
1:5M
1:~1M
Sand
Detail
Benefits to our agencies
Increased awareness of our role
Increased awareness of our products
Increased use of our products
Increased support for our role
Increased benefits for our users
1G goal
 Coordinated web accessibility of existing ~1:1M
mapping, in its current geologic format
Our task
 produce the 1st version of the 1G geological
specification & establish a process to revise it
Question:
What sort of geological
specification will
OneGeology require?
OneGeology geological specification
National scale, commonly 1:500k - 1:5M
Your principal geological map, whether
bedrock, surficial, or combined
Ownership & control remains with you;
credit to your agency is clear
You have already written the geological
specification for your map
Is that enough?
Considerations
Topographic base
Language
Time scale
Lithology
Structure
Genesis
Cover – offshore, lakes, ice, sediments
Discussion required
Throughout the meeting
This afternoon
Wednesday morning breakout
Thursday morning presentation
Post-meeting discussions
Geological maps
 an essential service