Arbuckle uplifts, the Anadarko Basin, the Ardmore Basin, the Ouachita Mountains thrust belt, the Arkoma Basin, and the possible southern extension of the Midcontinent gravity high.

B 1917-G. WYOMING. Petrology and reservoir paragenesis in the Sussex "B" sandstone of the Upper Cretaceous Cody Shale, House Creek and Porcupine fields, Powder River basin, Wyoming, by D. K. Higley. 1992. p. G1-G16. (Evolution of sedimentary basins; Powder River basin.) $1.75.

This evaluation of reservoir paragenesis includes detailed descriptions of the petrology of depositional facies of the Sussex "B" sandstone of the Sussex Sandstone Member of the Upper Cretaceous Cody Shale in the House Creek and Porcupine fields, Powder River basin, Wyoming.

B 1917-J. WYOMING, MONTANA. Depositional history of Jurassic rocks in the area of the Powder River basin, northeaster Wyoming and southeastem Montana, by E. A. Johnson. 1992. p. J1-J38. (Evolution of sedimentary basins; Powder River basin.) $2.50.

This report summarizes the history of clastic sedimentation in the eastern part of the middle Western Interior during the Middle and Late Jurassic. Fourteen lithostratigraphic units are discussed in relation to five separate marine inundations and six intervening erosional events.

B 1974. NEVADA. Stratigraphy, regional distribution, and reconnaissance geochemistry of Oligocene and Miocene volcanic rocks in the Paradise Range and northem Pactolus Hills, Nye County, Nevada, by D. A. John. 1992. 67 p. $4.

Stratigraphy, geochronology, and geochemistry of about 40 units of Oligocene and Miocene silicic ash-flow tuff, intermediate to silicic lava, and minor sedimentary rock exposed in three stratigraphic sections have been described. The distribution and sources of five regionally widespread ash-flow tuff units were delineated. The late Cenozoic volcanic and tectonic history of the Paradise Range and northern Pactolus Hills was compared to other areas in the Great Basin.

B 2001. WYOMING, NEVADA. Gold and other minor elements associated with the hot springs and geysers of Yellowstone National Park, Wyoming, supplemented with data from Steamboat Springs, Nevada, by D. E. White, Chris Heropoulos and R. O. Fournier. 1992. 19 p. $1.75.

A reconnaissance search for gold in hydrothermal deposits of Yellowstone National Park revealed a few sinters with Au contents above the detection limit by the short-wavelength-radiation emission-spectrographic method (0.1 ppm). Au contents are generally higher at Steamboat Springs. The common trace elements Ag, As, Sb, Hg, and Tl also are generally enriched, providing useful geochemical tracers for disseminated gold.

CIRCULARS

Circulars present technical or nontechnical information of wide popular interest in a format designed for distribution at no cost to the public. They are published to disseminate administrative information or important scientific information of an ephemeral nature.

C 0930-K. Intemational Strategic Minerals Inventory summary report; vanadium, by I. Goldberg, Minerals Bureau of South Africa; E. C. I. Hammerbeck, L. S. Labuschagne, and C. Rossouw, Geological Survey of South Africa. Prepared as a cooperative

effort among earth-science and mineral-resource agencies of Australia, Canada, the Federal Republic of Germany, the Republic of South Africa, the United Kingdom, and the United States of America. 1992. 45 p.

The world's major deposits and districts of vanadium are the subject of this eleventh report resulting from a cooperative datagathering effort with participation from earth-science and mineral resource agencies of six nations. In a format designed to be useful for both policymakers and geologists, the report presents an overview of vanadium resources and lists important geologic information and data concerning resources and production. Earlier reports in the series cover manganese, chromium, phosphate, nickel, platinum-group metals, cobalt, titanium, natural graphite, lithium, and tin.

C 1076. ALASKA. The Alaska Mineral Resource Assessment Program; background information to accompany geologic and mineral-resource maps of the Cordova and Middleton Island quadrangles, southem Alaska, by G. R. Winkler, George Plafker, R. J. Goldfarb and J. E. Case. 1992. 20 p.

This report summarizes recent results of integrated geological, geochemical, and geophysical field and laboratory studies conducted by the U.S. Geological Survey in two 1:250,000-scale quadrangles in coastal southern Alaska. The report contains an extensive reference list of pertinent sources of background information on the area and reviews the results of a current evaluation of the known and potential mineral and energy resources that was conducted as part of the Alaska Mineral Resource Assessment Program (AMRAP).

Periodicals

PRELIMINARY DETERMINATION OF EPICENTERS

Annual subscription (12 monthly issues) $14 domestic, $17.50 foreign. Available from Superintendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402.

Available in a quarterly form, beginning with 1985, in the U.S. Geological Survey Open-File series, in paper-copy or microfiche format from: USGS Book and Open-File Report Sales, Box 25425, Denver CO 80225.

Preliminary determination of epicenters. Monthly listing for September 1991. 28 p.

Miscellaneous and Special Books

GEOGRAPHIC NAMES INFORMATION SYSTEM (GNIS)

GNIS, developed by the Geographic Names Information Section, Branch of Geographic and Cartographic Research, National Mapping Division, is the basis for Professional Paper 1200-The National Gazetteer of the United States, which is being published as a series of individual state gazetteer volumes. Prior to publication of any volume, the interim materials described may meet the needs of potential users. The information contained in GNIS is interactively available at the U.S. Geological Survey's information offices. Special searches of the system may be requested for a modest cost with the results available in bound listings and on magnetic tape.

Volumes of the National Gazetteer

This product is available only in book form and only for State files that have undergone the second phase of data compilation. The second phase of data compilation entails the inclusion of names found in Federal, State and other sources as well as historical material. In addition to official names, known variant names of features are listed cross-referenced to the appropriate official name. A variant name is any other known name or spelling applied to a feature. Official State Gazetteers must be ordered from: USGS Book and Open-File Report Sales, Box 25425, Denver, CO 80225.

Volumes of P 1200–that are Available

Concise (1990)

29.00

North Dakota

Gaz.

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