Geologic Controls on Erosion, Sedimentation Of Streams, and Potential for Groundwater Contamination in Southwestern Georgia

Cocker, Mark D.

Title:

Geologic Controls on Erosion, Sedimentation Of Streams, and Potential for Groundwater Contamination in Southwestern Georgia

dc.contributor.author	Cocker, Mark D.
dc.contributor.corporatename	Georgia. Dept. of Natural Resources	en_US
dc.date.accessioned	2013-06-23T20:52:24Z
dc.date.available	2013-06-23T20:52:24Z
dc.date.issued	2007-03
dc.description	Proceedings of the 2007 Georgia Water Resources Conference, March 27-29, 2007, Athens, Georgia.	en_US
dc.description.abstract	The Georgia Geologic Survey (GGS) has mapped 29 7.5 minute quadrangles in the Upper Coastal Plain of southwestern Georgia during the past eight years as part of the U.S. Geological Survey’s STATEMAP program. Exposed sediments in these quadrangles consist of Upper Cretaceous to Tertiary sand, sandstone, clay, and limestone. Two geological rock units, the Eocene-ageClaiborne Group and the Cretaceous Providence Formation consist mainly of sand or soft sandstone that are easily eroded when exposed to concentrated storm runoff. Runoff from highway culverts, poor irrigation or loggingpractices can lead to significant and rapid erosion of the soft sands. Clear-cutting and stripping or burning of fragile ground cover in sandy terrain significantly inhibits regeneration of the ground cover that protects the sand from erosion. Erosion may threaten agricultural fields and infrastructures such as roads, railroads, pipelines and power lines. Sedimentation or silting up of streams by sand eroded from the surrounding terrain reduces the depth and velocity of normal stream flow and adversely affects stream ecology. Gullies resulting from this erosion tend to collect a variety of trash. As the Providence Formation and Claiborne Group are both important local and regional aquifers in the southwestern Coastal Plain of Georgia, trash may leak chemicals into these aquifers and have a detrimental effect on domestic, agricultural, and public water supplies.	en_US
dc.description.sponsorship	Sponsored and Organized by: U.S. Geological Survey, Georgia Department of Natural Resources, Natural Resources Conservation Service, The University of Georgia, Georgia State University, Georgia Institute of Technology	en_US
dc.description.statementofresponsibility	This book was published by the Institute of Ecology, The University of Georgia, Athens, Georgia 30602-2202. The views and statements advanced in this publication are solely those of the authors and do not represent official views or policies of The University of Georgia, the U.S. Geological Survey, the Georgia Water Research Institute as authorized by the Water Resources Research Act of 1990 (P.L. 101-397) or the other conference sponsors.
dc.embargo.terms	null	en_US
dc.identifier.uri	http://hdl.handle.net/1853/47956
dc.language.iso	en_US	en_US
dc.publisher	Georgia Institute of Technology	en_US
dc.relation.ispartofseries	GWRI2007. Stormwater	en_US
dc.subject	Water resources management	en_US
dc.subject	Erosion controls	en_US
dc.subject	Upper coastal plain	en_US
dc.subject	Stormwater runoff	en_US
dc.subject	Stream flow	en_US
dc.subject	Water quality	en_US
dc.title	Geologic Controls on Erosion, Sedimentation Of Streams, and Potential for Groundwater Contamination in Southwestern Georgia	en_US
dc.type	Text
dc.type.genre	Proceedings
dspace.entity.type	Publication
local.contributor.corporatename	Georgia Water Resources Institute
local.contributor.corporatename	School of Civil and Environmental Engineering
local.contributor.corporatename	College of Engineering
local.relation.ispartofseries	Georgia Water Resources Conference
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