Geology topics

David Grosh Thompson

Publications and source records attributed to David Grosh Thompson.

3 recordsLinked to original sources

USGS2014

Committee on underground waters, 1939–40

The Committee on Underground Waters for the new triennium is composed of the following: H. F. Blaney; E. B. Burwell; W. Gardner; C. S. Howard; F. H. Lahee; G. W. Musgrave; A. M. Piper; A. C. Swinnerton; L. K. Wenzel; D. G. Thompson (Chairman). The outstanding event of the year for ground‐water hydrologists was the meeting of the International Association of Scientific Hydrology, as a part of the International Union of Geodesy and Geophysics, at Washington, D.C., in September, 1939. One day was devoted to “questions” or topics of symposia of the Commission on Subterranean Water.

Eos, Transactions, American Geophysical Union↗

USGS1938

Effect of a sea-level canal on the ground-water level of Florida

No abstract available.

Economic Geology↗

USGS1937

Recent geologic studies on Long Island with respect to ground-water supplies

Recent studies have shown that relatively impermeable clay beds are widespread on Long Island but that erosion channels cutting through them permit restricted recharge of the underlying beds in some parts of the island. Of the more than 200,000,000 gallons of water a day now pumped from wells, about 65 per cent. comes from the surficial beds of Illinoian or Wisconsin age. Because of the restricted recharge of the lower beds and the desirability of saving these beds for use in localities where the upper beds may more easily be contaminated by salt water, any future large developments of ground water should be drawn from the surficial beds.

New York↗