Shore phases of the Green River formation in northern Sweetwater County, Wyoming
Wilmont H. Bradley
1926, Professional Paper 140-D
For the last two years the writer has been engaged in a detailed study of the Green River formation and its oil shale. In order to arrive at an intelligent interpretation of this great series of lacustrine beds, the field study has been focused upon the marginal phases of the...
The molluscan fauna of the Alum Bluff group of Florida, Part II, Astartacea, Carditacea, Chamacea
Julia Gardner
1926, Professional Paper 142-B
The first of the series of papers upon the Mollusca of the Alum Bluff group covered the orders of the Prionodesmacea and the Anomalodesmacea. The Mollusca were by the beginning of Miocene time so far advances in development that the great majority are included under the highest of the...
The data of geochemistry
Frank Wigglesworth Clarke
1924, Bulletin 770
Upon the subject of geochemistry a vast literature exists, but it is widely scattered and portions of it are difficult of access. The general treatises, like the classical works of Bischof and of Koth, are not recent, and great masses of modern data are as yet uncorrelated. The American material...
Conservation and modern life
J. H. Lees
1922, Science (56) 559-562
No abstract available....
The preparation of illustrations for reports of the United States Geological survey : with brief descriptions of processes of reproduction
John L. Ridgway
1920, Report
There has been an obvious need in the Geological Survey o£ a paper devoted wholly to illustrations. No complete paper on the character, use, and mode of preparation of illustration has been published by the Survey, though brief suggestions concerning certain features of their use have been printed in connection...
The Pliocene Citronelle Formation of the Gulf Coastal Plain. The flora of the Citronelle Formation
George Charlton Matson, Edward Wilber Berry
1916, Professional Paper 98-L
In the spring of 1910 the writer, working under the direction of T. Wayland Vaughan, geologist in charge of Coastal Plain investigations, undertook a study of the later Tertiary formations of the Gulf Coastal Plain. According to the plans outlined before the work was begun, the beds that had formerly...
The fractional precipitation of some ore-forming compounds at moderate temperatures
Roger Clark Wells
1915, Bulletin 609
Geology of the pitchblende ores of Colorado
Edson S. Bastin
1915, Professional Paper 90-A
The large amount of public interest that has recently been manifested in radium because of the apparent cures of cancer effected by certain of its emanations makes it desirable to place before the public as promptly as possible all available information in regard to the occurrence of the minerals from...
Geology and underground waters of the Arkansas Valley in eastern Colorado
N. H. Darton
1906, Professional Paper 52
In the valley of Arkansas River in southeastern Colorado there is an area of considerable extent in which artesian flows are available. During the last ten years numerous wells have been sunk to develop this important resource and, in most cases in the lower lands, abundant water supplies have been...
The geography and geology of Alaska; a summary of existing knowledge, with a section on climate, and a topographic map and description thereof
A. H. Brooks, Cleveland Abbe Jr., R.U. Goode
1906, Professional Paper 45
Alaska, the largest outlying possession of the United States, is that great land mass forming the northwestern extremity of the North American continent, whose western point is within 60 miles of the Asiatic coast (PI. II). About one-quarter of this area lies within the Arctic Circle, and from the standpoint...
Geology of the Bighorn Mountains
N. H. Darton
1906, Professional Paper 51
This report is the result of studies made in the field during the seasons of 1901, 1902, 1903, 1904, and 1905. It relates to an area of about 9,000 square miles, situated mainly in the north-central portion of Wyoming and extending northward into Montana. Its location and general surroundings are...
The lead, zinc, and fluorspar deposits of western Kentucky
E. O. Ulrich, W.S.T. Smith
1905, Professional Paper 36
Geography and distinctive characters. The fluorspar, lead, and zinc deposits that were the subject of the investigations reported in this paper are situated hi Livings ton, Crittenden, and Caldwell, and adjacent portions of Christian, Trigg, and Lyon counties, in western Kentucky, and in the counties immediately across the Ohio River,...
Preliminary report on the geology of the Arbuckle and Wichita mountains in Indian Territory and Oklahoma
J. A. Taff, H. F. Bain
1904, Professional Paper 31
The Arbuckle Mountains consist of a moderately elevated table -land or plateau in the east-central part of the Chickasaw Nation, Indian Territory. The plateau ranges in elevation from 1,300 feet above sea, in its contracted western part, to 750 feet, at the east end, where it coalesces with the bordering...
Chemical analyses of igneous rocks published from 1884 to 1900, with a critical discussion of the character and use of analyses
H.S. Washington
1903, Professional Paper 14
In the first two or three decades of the last century, when the study of rocks as such was being differentiated from that of minerals and of rock terranes that is, when the science of petrogaphy was in its infancy little attention was paid to their chemical features. It is...
Contributions to economic geology, 1902
Samuel Franklin Emmons, C. W. Hayes
1903, Bulletin 213
This bulletin has been prepared primarily with a view to securing prompt publication of the economic results of investigations by the United States Geological Survey. It is designed to meet the wants of the busy man, and is so condensed that he will be able to obtain results and conclusions...
Drainage modifications in southeastern Ohio and adjacent parts of West Virginia and Kentucky
W. G. Tight
1903, Professional Paper 13
The field work upon which this paper is based was carried on intermittently for several years. During the season of 1899 the work in Washington County, Ohio, was conducted under the direction of the Ohio State Academy of Science, the expenses being covered by a grant from the Emerson McMillin...
Modern methods of rock and mineral analysis
W. F. Hillebrand
1903, Journal of the Franklin Institute (155) 109-126
No abstract available....
Modern methods of rock and mineral analysis
W. F. Hillebrand
1903, Journal of the Franklin Institute (155) 181-194
No abstract available....
Twenty-second annual report of the Director of the United States Geological Survey, 1900-1901: Part IV - Hydrography
Charles D. Walcott
1902, Annual Report 22
I have the honor to transmit herewith the manuscript for a volume on hydrography, prepared for publication as Part IV of the Twenty-second Annual Report of the Survey. The data presented relate to the investigations carried on during the calendar year 1900. The first part of the report discusses the...
Lower Michigan mineral waters, a study into the connection between their chemical composition and mode of occurrence
Alfred C. Lane
1899, Water Supply Paper 31
Volume XIII: The tertiary insects of North America
Samuel H. Scudder
1890, Report, Report of the United States Geological Survey of the Territories
That creatures so minute and fragile as insects, creatures which can so feebly withstand the changing seasons as to live, so to speak, but a moment, are to be found fossil, engraved, as it were, upon the rocks or embedded in their hard mass, will never cease to be a...
Eighth annual report of the United States Geological Survey to the Secretary of the Interior, 1886-1887: Part 1
J. W. Powell
1889, Annual Report 8
The Geological Survey was organized, with Mr. Clarence King as Director, in March, 1879. In March, 1881, Mr. King resigned and the present Director was appointed. From its organization to the present time the Survey has steadily grown as Congress has enlarged its functions and increased its appropriations. During this...
Sketch of paleobotany
Lester Frank Ward
1885, Report, Fifth Annual Report of the Director, 1883-'84
To understand the true force of the facts of paleobotany as arguments for geology it is essential that their full biologic significance be grasped. It has therefore been deemed proper, in this introduction to the several tabular and systematic statements which will make up the bulk of the volume and...
I. Sexual, individual, and geographical variation in leucosticte tephrocotis, II.Geographical variation among North American mammals, especially in respect to size
J. A. Allen
1876, Report, Bulletin of the United States Geological and Geographical Survey of the Territories
Having recently had an opportunity (through the kindness of Professor Baird) of studying with some care the magnificent series of skulls of the North American Mammalia belonging to the National Museum (amounting often to eighty or a hundred specimens of a single species), I have been strongly impressed with the...
Predicting species distributions: unifying model selection and scale optimization for multi-scale occupancy models
Bryan S. Stevens, Courtney J. Conway
None, Ecosphere (10)
Geographic distributions are a basic component of a species’ ecology, and predicting distributions is a fundamental task of conservation and resource management. Reliable prediction depends on identification of appropriate scales of effect for environmental data, and scale-optimization techniques are thus desirable to identify optimal scales for predictor variables. Recent statistical...
