| Abstract: | Twenty-seven geohydrology sections illustrate structural and stratigraphic relationships within the 180-mi-long Edwards aquifer. These sections were used to interpret the location of barriers within the Edwards aquifer. The sections are oriented generally south-southeast, which is approximately normal to both the east-northeast trending Edwards aquifer and the strike of the major faults of the Balcones fault zone. Section lengths represent the distance necessary to cross the aquifer, which is 5 to 40 mi wide. The updip (north) end of the sections are drawn to indicate exposures of the Glen Rose Formation; from there the sections indicate downdip geologic conditions within the freshwater zone and the saline water zone. The sections are approximately parallel and illustrate geologic conditions at 5- to 10-mile intervals. The sections indicate the geologic conditions from near the eastern boundary of the aquifer in Hays County to near the western boundary of the aquifer in Uvalde County. Several sections show places where faults have sufficient vertical displacement to offset the entire, or almost entire, thickness of the aquifer. At these places the faults are barriers to groundwater flow directly downdip across the fault. (Author ‘s abstract) |
| Genre: | USGS Numbered Series |
| ProdID: | 29792 |
| Citation Author: | Small, T. A. |
| Citation Contributing Office: | |
| Citation Datum: | |
| Citation Day: | |
| Citation Edition: | - |
| Citation Editor: | |
| Citation End Page: | |
| Citation Issue: | |
| Citation Keywords: | |
| Citation Language: | ENGLISH |
| Citation Larger Work Title: | |
| Citation LatN: | |
| Citation LatS: | |
| Citation LonE: | |
| Citation LonW: | |
| Citation Month: | |
| Citation No Pagination: | |
| Citation Number Of Pages: | |
| Citation Online Only Flag: | |
| Citation Phsyical Description: | iii, 52 p. :ill., maps ;28 cm. |
| Citation Projection: | |
| Citation Public Comments: | |
| Citation Publisher: | U.S. Geological Survey, |
| Citation Series: | Water-Resources Investigations Report |
| Citation Series Code: | WRI |
| Citation Series Number: | 85-4259 |
| Citation Search Results Text: | Hydrogeologic sections of the Edwards Aquifer and its confining units in the San Antonio area, Texas; 1986; WRI; 85-4259; Small, T. A. |
| Citation Start Page: | |
| Citation Volume: | |
| Citation Year: | 1986 |
| Type: | citation/reference |
| Text: | Hydrogeologic sections of the Edwards Aquifer and its confining units in the San Antonio area, Texas; 1986; WRI; 85-4259; Small, T. A. |
| URL (THUMBNAIL): | http://pubs.usgs.gov/wri/1985/4259/report-thumb.jpg |
| URL (DOCUMENT): | http://pubs.usgs.gov/wri/1985/4259/report.pdf |
| URL (PLATE): | http://pubs.usgs.gov/wri/1985/4259/plate-1.pdf |
| URL (PLATE): | http://pubs.usgs.gov/wri/1985/4259/plate-2.pdf |
| URL (PLATE): | http://pubs.usgs.gov/wri/1985/4259/plate-3.pdf |
| URL (PLATE): | http://pubs.usgs.gov/wri/1985/4259/plate-4.pdf |
| URL (PLATE): | http://pubs.usgs.gov/wri/1985/4259/plate-5.pdf |
| URL (PLATE): | http://pubs.usgs.gov/wri/1985/4259/plate-6.pdf |
| URL (PLATE): | http://pubs.usgs.gov/wri/1985/4259/plate-7.pdf |
| Date Other: | Sat, 1 Jan 1994 00:00 -0600 |
| Publisher: | U.S. Geological Survey, |
