Geology Reports⌕ Search

Geology topics

Sydney S. DeJarnette

Publications and source records attributed to Sydney S. DeJarnette.

5 recordsLinked to original sources
USGS1986

Distribution and altitude of the top of saline ground water in the southeastern Coastal Plain

A map prepared by the U.S. Geological Survey shows the approximate distribution of saline water (greater than 10,000 mg/L as NaCl) in the Southeastern Coastal Plain. The primary distribution of saline water is in Cretaceous sediments and may be characterized as an extensive body of fluid whose upper surface generally slopes upward from inland toward coastal areas. Some freshwater appears to occupy parts of the deeper water-bearing zones in Georgia. A small amount of saline water appears to occupy a narrow upper zone of limited extent in lower Tertiary sediments in Georgia and parts of South Carolina. The freshwater-saline water interface for the lower zone lies offshore, east of the South Carolina coast. Consequently, the saline water distribution is inferred offshore.

southeastern Coastal Plain↗
USGS1986

Potentiometric surface, ground-water withdrawals, and recharge area for the Nanafalia-Clayton aquifer in Alabama, fall 1982

The U.S. Geological Survey began a nationwide program in 1978, termed Regional Aquifer-System Analysis (RASA), to study a number of the major aquifer systems that provide a significant part of the country 's water supply. One of the aquifer systems chosen for study was the thick and extensive sequence of sands for Cretaceous and early Tertiary age that underlies the Coastal Plain of the southeastern United States. This system, which extends from Mississippi eastward to South Carolina, is called the Southeastern Coastal Plain aquifer system. It can be divided geohydrologically into several separate aquifers. This map, one of a series that portray the potentiometric surface, groundwater withdrawal, and recharge areas for the aquifers in Alabama that are included in the regional system, deals with the Nanafalia-Clayton aquifer. (Lantz-PTT)

Water-Resources Investigations Report↗
USGS1986

Potentiometric surface, ground-water withdrawals, and recharge area for the Lisbon aquifer in Alabama, fall 1982

The U.S. Geological Survey began a nationwide program in 1978, termed Regional Aquifer-System Analysis (RASA), to study a number of the major aquifer systems that provide a significant part of the country 's water supply. One of the aquifer systems chosen for study was the thick and extensive sequence of sands of Cretaceous and early Tertiary age that underlies the Coastal Plain of the southeastern United States. This system, which extends from Mississippi eastward to South Carolina, is called the Southeastern Coastal Plain aquifer system. It can be divided geohydrologically into several separate aquifers. The map presented, one of a series that portray the potentiometric surface, groundwater withdrawals, and recharge areas for aquifers in Alabama that are included in the regional system, deals with the Lisbon aquifer. (Lantz-PTT)

Water-Resources Investigations Report↗