These circulars issued from the Bureau of Economic Geology contain the record of cores and cuttings from well received and described in the Bureau.

These circulars issued from the Bureau of Economic Geology contain the record of cores and cuttings from well received and described in the Bureau.

These circulars issued from the Bureau of Economic Geology contain the record of cores and cuttings from well received and described in the Bureau.

This six-sheet set of oversize colorful geologic maps and cross sections presents new interpretations on the outcrop pattern and complex structure within the Upper Cretaceous Del Rio, Buda, Boquillas, Pen, Aguja, Javelina, and Cretaceous-Tertiary Black Peaks Formations of Big Bend National Park.

These circulars issued from the Bureau of Economic Geology contain the record of cores and cuttings from well received and described in the Bureau.

A comprehensive review of Texas earthquakes from 1847 to 1986 has revealed 106 earthquakes of magnitude 3 or greater; of these, 24 are earthquakes for which reports of damage are available, and 1 was responsible for a human fatality.

Explore the landscapes, rocks, and resources of Texas and 1.7 billion years of Earth history in Texas Through Time by noted geoscientist Thomas E. Ewing.

Three closely spaced oblique-slip faults displace a Quaternary gravel and sand unit overlying Eocene Claiborne strata in the Trinity River Valley, Leon County.

Geology, the study of Earth, is one of the most visual sciences. If a geological problem can be imagined, it can be visualized in the mind’s eye of a geologist. Perhaps that’s why geology textbooks are so richly illustrated.

"When in the early 1980’s it became known that the Federal Government was planning to undertake the construction of the massive Superconducting Super Collider (SSC) project, scientists in the various states, still without precise information on the criteria to be established for site selection, b