The American species of Orthophragmina and Lepidocyclina
J.A. Cushman
1920, Professional Paper 125-D
Orbitoid Foraminifera, on account of their short stratigraphic range, have proved to be excellent horizon markers, and, because of their wide geographic distribution, they are valuable in correlation. The genus Orbitoides, as now restricted, is found exclusively in deposits of Cretaceous age, Orthophragmina appears to be confined to the...
Shorter contributions to general geology, 1919
Water Resources Division, U.S. Geological Survey
1920, Professional Paper 125
An Eocene flora from trans-Pecos Texas
Edward Wilber Berry
1920, Professional Paper 125-A
During the fall of 1916 I received a small collection of fossil plants which had been obtained during a geologic reconnaissance of the trans-Pecos region of Texas, by Charles Lawrence Baker. A preliminary report was sent to Mr. Baker in November of that year and was quoted in his...
Pliocene and Pleistocene fossils from the Arctic coast of Alaska and the auriferous beaches of Nome, Norton Sound, Alaska
William Healey Dall
1920, Professional Paper 125-C
Exploration of the geology of the Arctic and subarctic shores of Alaska began as early as the voyages of Kotzebue and Beechey, in 1816 and 1826, and a detailed report on the vertebrate fossils found there, with a wealth of illustration, was made by Sir John Richardson in 1854, in...
Mineral resources of Alaska: Report on progress of investigations in 1918
George Curtis Martin
1920, Bulletin 712
No abstract available....
Gradations from continental to marine conditions of deposition in central Montana during the Eagle and Judith River epochs
C.F. Bowen
1920, Professional Paper 125-B
The large amount of geologically unexplored territory in western Rosebud and Dawson counties, Mont., led to an examination by the writer of a part of this territory for the purpose of getting general information on its stratigraphy and structure. The region proved to be one of considerable geological interest....
Elkton-Wilmington folio, Maryland-Delaware-New Jersey-Pennsylvania
Florence Bascom, Benjamin LeRoy Miller
1920, Folios of the Geologic Atlas 211
Surface water supply of the United States, 1917 : Part XII. North Pacific slope drainage basins : C. Lower Columbia River Basin and Pacific slope drainage basins in Oregon
Water Resources Division, U.S. Geological Survey
1920, Water Supply Paper 464
No abstract available....
Surface water supply of the United States, 1917, Part II, South Atlantic slope and eastern Gulf of Mexico basins
Water Resources Division, U.S. Geological Survey
1920, Water Supply Paper 452
Surface water supply of the United States, 1917, Part I, North Atlantic slope basins
Water Resources Division, U.S. Geological Survey
1920, Water Supply Paper 451
Gas in the Big Sand Draw anticline, Fremont County, Wyoming
A. J. Collier
1920, Bulletin 711-E
No abstract available....
Placer mining in the Tolovana district
R. M. Overbeck
1920, Bulletin 712-F
No abstract available....
Oil in the Warm Springs and Hamilton domes, near Thermopolis, Wyoming
A. J. Collier
1920, Bulletin 711-D
No abstract available....
Contributions to economic geology (short papers and preliminary reports), 1919 : Part I. - Metals and nonmetals except fuels
F. L. Ransome, Ernest Francis Burchard
1920, Bulletin 710
No abstract available....
Surface water supply of the United States, 1917 : Part 11, Pacific slope basins in California
Water Resources Division, U.S. Geological Survey
1920, Water Supply Paper 461
Ground water in the Meriden area, Connecticut
Gerald Ashley Waring
1920, Water Supply Paper 449
Deposits of manganese ore in Arizona
E. L. Jones Jr., Frederick Leslie Ransome
1920, Bulletin 710-D
No abstract available....
The Farnham anticline, Carbon County, Utah
F. R. Clark
1920, Bulletin 711-A
No abstract available....
Preliminary report on the chromite of Kenai Peninsula
A.C. Gill
1920, Bulletin 712-D
No abstract available....
Anticlines near Maverick Springs, Fremont County, Wyoming
A. J. Collier
1920, Bulletin 711-H
No abstract available....
Water-power investigations in southeastern Alaska
G. H. Canfield
1920, Bulletin 712-B
No abstract available....
Oil shale in western Montana, southeastern Idaho, and adjacent parts of Wyoming and Utah
D.D. Condit
1920, Bulletin 711-B
No abstract available....
Marble resources of southeastern Alaska, with a section on the geography and geology
Ernest Francis Burchard, Theodore Sheffield Chapin
1920, Bulletin 682
Gypsum deposits of the United States
Ralph Walter Stone
1920, Bulletin 697
Water supply of St. Mary and Milk rivers, 1898-1917
Benjamin E. Jones, R.J. Burley
1920, Water Supply Paper 491
