Publication Year
1975
Series
Mineral Resource Circular
Publisher
Publication Year
1975
Series
Report of Investigations
Publisher
Abstract
Nitrogen isotope ratios of ammonium and nitrate ions from soil and water samples can be analyzed reproducibly with an experimental error of approximately +/-1 parts per thousand (ppt). Two isotopic ranges of soil nitrate are found in the soils of southern Runnels County, Texas.
Publication Year
1975
Series
Report of Investigations
Publisher
Abstract
The Lake Travis vicinity lies predominantly within a carbonate rock terrane and is the site of ongoing intensive residential development.
Map Scale
1:250000
Publication Year
1974
Series
Geologic Atlas of Texas
Publisher
Abstract
Geologic map that depicts the surface geology of Colorado, Lavaca, and Gonzales Counties, and parts of Hays, Caldwell, Bastrop, Fayette, Austin, Waller, Fort Bend, Wharton, Matagorda, Jackson, Victoria, De Witt, Karnes, Wilson, and Guadalupe Counties, Texas.
Publication Year
1974
Series
Mineral Resource Circular
Publisher