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Chromite deposits in central part Stillwater Complex, Sweet Grass County, Montana: A digital database for the geologic map of the east slope of Iron Mountain

In 1940, A.L. Howland and J. W. Peoples, assisted by W.R. Jones and M.G. Bennett, mapped the geology of the east slope of Iron Mountain, Montana. The map was revised and extended by Howland in 1942 and published in 1955 as plate 10 of the U.S. Geological Survey Bulletin 1015-D (Howland, 1955). In 2000, the USGS contracted Optronics Specialty Co., Inc. of Northridge, CA to prepare a scanned digital version of plate 10. Geospatial editing and attributing of the scanned map of the east slope of Iron Mountain was performed by the USGS in order to produce an interim digital product. This digital geospatial database is one of many being created by the U.S. Geological Survey as an ongoing effort to provide geologic information in a geographic information system (GIS) for use in spatial analysis.

Montana

Descriptive catalogue of the photographs of the United States Geological Survey of the Territories for the years 1869 to 1873: Miscellaneous Publications - No. 5

Miscellaneous Publications of the United States Geological and Geographical Survey of the Territories is comprised of No. 1-12, some with multiple editions. A 1st and 2nd edition of No. 5 were published in 1874 and 1875 respectively. Ferdinand Vandeveer Hayden is the United States geologist in charge of this series. List of publications, with contents of each, and author and subject index may be found in "Catalogue and index of the publications of the Hayden, King, Powell, and Wheeler surveys" by L.F. Schmeckebier. 1904. (U.S. Geological Survey. Bulletin no. 222).

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Descriptive catalogue of the photographs of the United States Geological Survey of the Territories for the years 1869 to 1875, inclusive: Miscellaneous publications - No. 5

Miscellaneous Publications of the United States Geological and Geographical Survey of the Territories is comprised of No. 1-12, some with multiple editions. A 1st and 2nd edition of No. 5 were published in 1874 and 1875 respectively. Ferdinand Vandeveer Hayden is the United States geologist in charge of this series. List of publications, with contents of each, and author and subject index may be found in "Catalogue and index of the publications of the Hayden, King, Powell, and Wheeler surveys" by L.F. Schmeckebier. 1904. (U.S. Geological Survey. Bulletin no. 222).

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Descriptive catalogue of photographs of North American Indians

Miscellaneous Publications of the United States Geological and Geographical Survey of the Territories is comprised of No. 1-12, some with multiple editions. Ferdinand Vandeveer Hayden is the United States geologist in charge of this series. Other contributors: United States Army. List of publications, with contents of each, and author and subject index may be found in "Catalogue and index of the publications of the Hayden, King, Powell, and Wheeler surveys" by L.F. Schmeckebier. 1904. (U.S. Geological Survey. Bulletin no. 222).

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Volume V: Bulletin of the United States Geological and Geographical Survey of the Territories, 1879

The object of the present paper is to set forth some interesting biological facts relating to the gall-making Pemphiginre, and which were presented in abstract at the late meeting of the American Association for the Advancement of Science. These facts have a special interest just at this time on account of the close relation·ship between the insects of the sub-family in question and the notorious Grape-vine Phylloxera (Phylloxera vastatrix).

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Bulletin of the United States Geological and Geographical Survey of the Territories: Volume III, Number 4

Table of Contents ART. XXIX.---The First Discovered Traces of Fossil Insects in the American Tertiaries. By Samuel H. Scudder.....741-762 ART. XXX.----Description of Two Species of Carabidae found in the Interglactial Deposits of Scarboro' Heights, near Toronto, Canada. By Samuel H. Scudder.....763-764 ART. XXX.-----Report upon the Insects collected by P.R. Uhler during the Explorations of 1875, including Monographs of the Families Cydnidae and Saldae , and the Hemiptera collected by A.S. Packard, Jr., M.D. By P. R. Uhler. (Continued from p. 475).....765-802 ART. XXXII.---Description of Cambarus Couesi , a New Species of Crawfish from Dakota. By Thos. H. Streets, M.D., U.S.N.....802-894 ART. XXXIII.--On a Carnivorous Dinosaurian from the Dakota Beds of Colorado. By E.D. Cope .....805-806 ART. XXXIV.--A Contribution to the Knowledge of tlhe Ichthylological Fauna of the Green River Shales. By E.D. Cope.....807-820 ART. XXXV.---On the Genus Erisichthe . By E.D. Cope.....821-823 Index .....825-856

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Bulletin of the United States Geological and Geographical Survey of the Territories: Volume IV, Number 4

Table of Contents ART. XXXII.---The Fossil Insects of the Green River Shales. By Samuel H. Scudder, Cambridge, Mass.....747-776 ART. XXXIII.---Report on the Collection of Fishes made by Dr. Elllott Cones, U.S.A., in Dakota and Montana, during the seasons of 1873 and 1874. By DavidS. Jordan, M.D......777-800 ART. XXXIV.----Catalogue of Phraenogamous and Vascular Cryptogamous Plants collected during the summers of 1873 and 1874, in Dakota and Montana, along the forty-ninth parallel, by Dr. Elliott Cones, U.S.A.; with which are incorporated those collected in the same region at the same times by Mr. George M. Dawson. By Prof. J. W. Chickering.....801-830 ART. XXXV.-----On some Striking Products of Erosion in Colorado. By F.M. Endlich, S.N.D......831-864 ART. XXXVI.----Paleontological Papers No.8: Remarks upon the Laramie Group. By C.A. White, M.D......865-876 ART. XXXVII.---Synonymatic List of the American Sciuri, or Arboreal Squirrels. By J.A. Allen. (See p. 905.).....877-887 Index.....889-908

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Bulletin of the United States Geological and Geographical Survey of the Territories: Volume IV, Number 3

Table of Contents ART. XXV.----Field-notes on Birds observed in Dakota and Montana along the Forty-ninth Parallel during the seasons of 1873 and 1874. By Dr. Elliott Coues, U.S.A., late Surgeon and Naturalist U.S. Northern Boundary Commission.....545-662 ART. XXVI.----Notes on a Collection of Fishes from the Rio Grande, at Brownsville, Texas-Continued. By D.S. Jordan, M.D......663-668 ART. XXVII.---Preliminary Studies on the North American Pyralidae. I. By A.R. Grote..... 669-706 ART. XXVIII.--Paleontological Papers No.6: Descriptions of New Species of Invertebrate Fossils from the Laramie Group. By C.A. White, M.D......707-720 ART. XXIX.----Paleontological Papers No.7: On the Distribution of Molluscan Species in the Laramie Group. By C. A. White, M.D......721-724 ART. XXX.-----On some Dark Shale recently discovered below the Devonian Limestones, at Independence, Iowa\; with a Notice of its Fossils and Description of New Species. By S. Calvin, Professor of Geology, State University of Iowa.....725-730 ART. XXXI.----On the Mineralogy of Nevada. By W.J. Hoffman, M.D......731-745

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Bulletin of the United States Geological and Geographical Survey of the Territories: Volume II, Number 3

Table of Contents I.-----Notes descriptive of some geological sections of the country about the headwaters of the Missouri and Yellowstone Rivers. By F.V. Hayden II.----Notes on the tertiary and cretaceous periods of Kansas. By B.F. Mudge III.---Notes concerning a contour map of the United States. By Henry Gannett, M.E. IV.----The flora of southwestern Colorado. By T.S. Brandegree V.-----Brief synopsis of North American earwigs, with an appendix on the fossil species. By Samuel H. Scudder VI.----List of the orthoptera collected by Dr. A.S. Packard in Colorado and the neighboring territories during the summer of 1875. By Samuel H. Scudder VII.---Notice of a small collection of butterflies made by Dr. A.S. Packard in Colorado and Utah in 1875. By Samuel H. Scudder VIII.--Notes on the grammatical structure of the Nez Perces language. By George Ainslie

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Bulletin of the United States Geological and Geographical Survey of the Territories: No. 6, second series

Table of Contents I.----An account of the various publications relating to the travels of Lewis and Clarke, with a commentary on the zoological results of their expedition. By Dr. Elliott Coues, U.S.A. II.---Notice of a very large Goniatite from eastern Kansas. By F.B. Meek III.--Fossil orthoptera from the Rocky Mountajn tertiaries. By Samuel H. Scudder IV.--Studies of the American Falconidae: Monograph of the Polybori. By Robert Ridgway

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Standards for the classification of public coal lands

In order to provide uniformity in the classification of coal lands in the public domain, certain standards have been prepared from time to time by the U.S. Geological Survey. The controlling factors are the depth, quality, and thickness of the coal beds. The first regulations were issued April 8, 1907; others followed in 1908, 1909, and 1913. Except for minor changes in 1959, the regulations of 1913, which were described in U.S. Geological Survey Bulletin 537, have been the guiding principles for coal-land classification. Changes made herein from the standards previously used are: (1) a maximum depth of 6,000 feet instead of 5,000 feet, (2) a maximum depth of 1,000 feet instead of 500 feet for coals of minimum thickness, (3) use of Btu (British thermal unit) values for as-received foal instead of air-dried, and (4) a minimum Btu value of 4,000 for as-received coal instead of 8,000 for air-dried. An additional modification is that the maximum thickness of 8 feet which was designated in the Classification Chart for Coal Lands in 1959 is changed to 6 feet. The effect of these changes will be the classification of a greater amount of the withdrawn land as coal land than was done under earlier regulations.

Circular

Geology and mineral resource assessment of the Venezuelan Guayana Shield at 1:500,000 scale; a digital representation of maps published by the U.S. Geological Survey

This CD-ROM contains vector-based digital maps of the geology and resource assessment of the Venezuela Guayana Shield originally published as paper maps in 1993 in U. S. Geological Survey Bulletin 2062, at a scale of 1:1 million and revised in 1993-95 as separate maps at a scale of 1:500,000. Although the maps on this disc can be displayed at different scales, they are not intended to be used at any scale more detailed than 1:500,000.

Data Series

Platinum deposits of Alaska

The placer deposits of the Goodnews Bay district in southwestern Alaska have yielded the only significant production of platinum metals in the United States, although small amounts of platinum metals have been produced from other deposits in Alaska and elsewhere in the United States. The Goodnews Bay deposits were described by Mertie in U.S. Geological Survey Bulletin 918 (1940). Many new data have been obtained since that time, and in order to make this information available in advance of publication, this report on Platinum deposits of Alaska has been placed on open-file.

Alaska

Thermodynamic properties of selected uranium compounds and aqueous species at 298.15 K and 1 bar and at higher temperatures; preliminary models for the origin of coffinite deposits

Thermodynamic values for 110 uranium-bearing phases and 28 aqueous uranium solution species (298.15 K and l bar) are tabulated based upon evaluated experimental data (largely from calorimetric experiments) and estimated values. Molar volume data are given for most of the solid phases. Thermodynamic values for 16 uranium-bearing phases are presented for higher temperatures in the form of and as a supplement to U.S. Geological Survey Bulletin 1452 (Robie et al., 1979). The internal consistency of the thermodynamic values reported herein is dependent upon the reliability of the experimental results for several uranium phases that have been used as secondary calorimetric reference phases. The data for the reference phases and for those phases evaluated with respect to the secondary reference phases are discussed. A preliminary model for coffinite formation has been proposed together with an estimate of the free energy of formation of coffinite. Free energy values are estimated for several other uranium-bearing silicate phases that have been reported as secondary uranium phases associated with uranium ore deposits and that could be expected to develop wherever uranium is leached by groundwaters.

Open-File Report

Stratigraphic framework of Cambrian and Ordovician rocks in the central Appalachian basin from Medina County, Ohio, through southwestern and south-central Pennsylvania to Hampshire County, West Virginia

This chapter is a re-release of U.S. Geological Survey Bulletin 1839-K, of the same title, by Ryder and others (1992; online version 2.0 revised and digitized by Robert D. Crangle, Jr., 2003). It consists of one file of the report text as it appeared in USGS Bulletin 1839-K and a second file containing the cross section, figures 1 and 2, and tables 1 and 2 on one oversized sheet; the second file was digitized in 2003 as version 2.0 and also includes the gamma-ray well log traces.

Appalachian basin

Methods for Adjusting U.S. Geological Survey Rural Regression Peak Discharges in an Urban Setting

A study was conducted of 78 U.S. Geological Survey gaged streams that have been subjected to varying degrees of urbanization over the last three decades. Flood-frequency analysis coupled with nonlinear regression techniques were used to generate a set of equations for converting peak discharge estimates determined from rural regression equations to a set of peak discharge estimates that represent known urbanization. Specifically, urban regression equations for the 2-, 5-, 10-, 25-, 50-, 100-, and 500-year return periods were calibrated as a function of the corresponding rural peak discharge and the percentage of impervious area in a watershed. The results of this study indicate that two sets of equations, one set based on imperviousness and one set based on population density, performed well. Both sets of equations are dependent on rural peak discharges, a measure of development (average percentage of imperviousness or average population density), and a measure of homogeneity of development within a watershed. Average imperviousness was readily determined by using geographic information system methods and commonly available land-cover data. Similarly, average population density was easily determined from census data. Thus, a key advantage to the equations developed in this study is that they do not require field measurements of watershed characteristics as did the U.S. Geological Survey urban equations developed in an earlier investigation. During this study, the U.S. Geological Survey PeakFQ program was used as an integral tool in the calibration of all equations. The scarcity of historical land-use data, however, made exclusive use of flow records necessary for the 30-year period from 1970 to 2000. Such relatively short-duration streamflow time series required a nonstandard treatment of the historical data function of the PeakFQ program in comparison to published guidelines. Thus, the approach used during this investigation does not fully comply with the guidelines set forth in U.S. Geological Survey Bulletin 17B, and modifications may be needed before it can be applied in practice.

Scientific Investigations Report