USGS and AASG Unveil A Geologic Time Scale and Color Scheme for Use in Creating Geologic Maps

Reston, VA - October 18, 2007 - The U.S. Geological Survey (USGS) and the Association of American State Geologists (AASG) announced that they have developed an updated geologic time scale and color scheme for use in creating geologic maps of the United States.

Geologic maps show the rock types at the Earth's surface and help unravel the history of the Earth. They can help inform land-use decisions such as how planners should design buildings, canals, roads, and drainage of farmland. They can help locate earthquake faults and show where landslides are likely to occur to help plan for safer communities. They can help predict where resources such as oil, gas, and coal exist for resource development.

"There is now a national standard for producing geologic maps and communicating the ages of geologic formations in the United States," said USGS scientist Randy Orndorff. "Geologic maps are important tools for policy makers, planners and the general public, and having a streamlined way to create geologic maps helps make them a credible and viable resource for land-use and environmental planning as well as economic development."

Geologists from the USGS, state geological surveys, academia and other organizations have sought a consistent time scale to be used in communicating the ages of geologic units in the United States. Many international debates have occurred over names and boundaries of units, and various time scales have been used by the geoscience community. To help remedy differences, the USGS and the AASG developed “Divisions of Geologic Time—Major Chronostratigraphic and Geochronologic Units,” which can be accessed at: http://pubs.usgs.gov/fs/2007/3015/.

"AASG considered the development of a national standard time scale to be of critical importance to geologists around the country engaged in the production of geologic maps," said Alabama State Geologist Nick Tew, who represented the AASG in development of the updated geologic time scale. "The AASG was happy to work with our colleagues at USGS in development of the updated time scale."

USGS provides science for a changing world. For more information, visit the USGS Web site at www.usgs.gov. You can also listen to or download a USGS podcast featuring Mr. Orndorff discussing how you can discover what's beneath your feet by using geologic maps at http://www.usgs.gov/corecast/.

USGS provides science for a changing world. For more information, visit www.usgs.gov.

Contact:

Clarice Nassif Ransom
703-648-4299
Email Contact



Review Article Be the first to review this article

Bentley: YII2020

Featured Video
Latest Blog Posts
Alex Carrick, Chief Economist at ConstructConnectThe AEC Lens
by Alex Carrick, Chief Economist at ConstructConnect
10 Mid-January 2021 Economic Nuggets
Jobs
Systems Engineer for Watts Water Technologies at Blauvelt, New York
Senior Highway Engineer for RS&H at Jacksonville, Florida
Sr. Design Technician for CEC at Oklahoma City, Oklahoma
Sr. Application Engineer for Watts Water Technologies at San Antonio, Texas
Product Design Engineer - Softgoods for Apple Inc at Cupertino, California
ArcGIS Online Product Engineer for REST API for ESRI at Redlands, California
Upcoming Events
DCW - Digital Construction Week at Excel London United Kingdom - May 19 - 20, 2021
World Architecture Festival at United States - Jun 23 - 25, 2021
ICSD 2021 : 9th International Conference on Sustainable Development, 8 - 9 September Rome, Italy at Roma Eventi, Pontifical Gregorian University Piazza della Pilotta, 4 Rome Rome Italy - Sep 8 - 9, 2021
Urban Planning & Architectural Design for Sustainable Development – 6th Edition at University of Florence Florence Italy - Sep 14 - 16, 2021
Kenesto: 30 day trial
CADalog.com - Countless CAD add-ons, plug-ins and more.



© 2021 Internet Business Systems, Inc.
670 Aberdeen Way, Milpitas, CA 95035
+1 (408) 882-6554 — Contact Us, or visit our other sites:
TechJobsCafe - Technical Jobs and Resumes EDACafe - Electronic Design Automation GISCafe - Geographical Information Services  MCADCafe - Mechanical Design and Engineering ShareCG - Share Computer Graphic (CG) Animation, 3D Art and 3D Models
  Privacy PolicyAdvertise