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Page 6511, results 162751 - 162775

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Publication Extents

Not all publications have extents, not all extents are completely accurate
An early Eocene florule from central Texas
Edward Wilber Berry
1925, Professional Paper 132-E
In 1916 I described a florule collected by Alexander Deussen and L. W. Stephenson at the town of Earle, in Bexar County, Tex. This florule was tentatively considered of Midway age by these geologists, and examination of the fossil plants tended to confirm this assignment, particularly because of their lack...
The resuscitation of the term Bryn Mawr gravel
Florence Bascom
1925, Professional Paper 132-H
In the course of geologic and physiographic work in eastern Pennsylvania, it has seemed to the writer that the time was ripe for the restriction of the term Brandywine formation, now including presumably both Pliocene and Pleistocene gravels, and the reinstatement of the old term Bryn Mawr gravel for a...
Origin of the boghead coals
Reinhardt Thiessen
1925, Professional Paper 132-I
The bituminous rocks of sedimentary origin may be classified roughly under two main heads - coals and bituminous shales. In a strict sense no definite line can be drawn between these two groups, because coals may be insensibly grade into bituminous shales. Chemically the boghead coals are preeminently bituminous....
The evolution and disintegration of matter
Frank Wigglesworth Clarke
1925, Professional Paper 132-D
In any attempt to study the evolution of matter it is necessary to begin with its simplest known forms, the so-called chemical elements. During a great part of the nineteenth century many philosophical chemists held a vague belief that these elements were not distinct entities but manifestations of one primal...
A new fauna from the Colorado group of southern Montana
John B. Reeside Jr.
1925, Professional Paper 132-B
This paper describes a small but interesting fauna collected in 1921 by W. T. Thorn, Jr., Gail F. Moulton, T. W. Stanton, and K. C. Heald in the Crow Indian Reservation in southern Montana. The locality is in sec. 36, T. 6 S., R. 32 E., Big Horn County, and...
Rock formations in the Colorado Plateau of Southeastern Utah and Northern Arizona
C.R. Longwell, H.D. Miser, R.C. Moore, Kirk Bryan, Sidney Paige
1925, Professional Paper 132-A
The field work of which this report is a record was done in the summer and fall of 1921 by members of the United States Geological Survey. A project to build a large storage dam at Lees Ferry, on Colorado River in northern Arizona, called for a detailed topographic survey...
Aniakchak Crater, Alaska Peninsula
Walter R. Smith
1925, Professional Paper 132-J
The discovery of a gigantic crater northwest of Aniakchak Bay (see fig. 11) closes what had been thought to be a wide gap in the extensive series of volcanoes occurring at irregular intervals for nearly 600 miles along the axial line of the Alaska Peninsula and the Aleutian Islands. In...
Correlation of the Eocene formations in Mississippi and Alabama
Wythe Cooke
1925, Professional Paper 140-E
During Eocene time the site of the boundary between the States of Mississippi and Alabama fell within the transition zone between the Mississippi embayment and the open Gulf of Mexico. That different types of deposition proceeded simultaneously within these two regions may be inferred from the different facies which...