Geologic map of texas. The 600 million year geologic history of north central texas and all of texas involved several periods of mountain building tectonic activity. Source map sheet. Texas has numerous aquifers capable of producing groundwater for households municipalities industry farms and ranches. This map shows the major streams and rivers of texas and some of the larger lakes.
This map layer shows the boundaries of these source map sheets. If you would like more information on a particular geologic time period you can scan a complete listing of our exhibits by clicking on the web lift below. Each line is a different elevation but some of these lines have numbers on them. Texas water development board.
The texas water development board twdb recognizes 9 major aquifers aquifers that produce large amounts of water over large areas see major aquifers map and 22 minor aquifers aquifers that. The geologic database of texas was digitized from the geologic atlas of texas gat. The geology layer is a web map service provided through the texas natural resource information system tnris. If you were to look at a topographic map you would realize that theres not just one line but many.
Welcome to the bureau of economic geology core and log database. This web application has been created to allow the public to quickly locate materials within the bureaus extensive collection of geologic samples and geophysical logs.