Geology and Mineral Deposits of the Venezuelan Guayana Shield (open access)

Geology and Mineral Deposits of the Venezuelan Guayana Shield

Abstract: The U.S. Geological Survey and the Corporación Venezolana de Guayana, Técnica Minera, C.A., conducted a cooperative mapping, exploration, and mineral resource estimation study in Venezuela from 1987 to 1992. The work was conducted in the Venezuelan Guayana Shield, an Archean to Early and Middle Proterozoic craton in southern and eastern Venezuela of almost 415,000 km2 that is mostly covered by jungle and savanna. Results obtained from this project contribute a new understanding of the geology and evolution of the Venezuelan Guayana Shield and the nature of its mineral occurrences. Personnel from Técnica Minera, C.A., were trained both in the field and in the office to conduct modern mineral exploration and geologic mapping and research programs. This five-year project was supported financially by the Corporación Venezolana de Guayana.
Date: 1995
Creator: Sidder, Gary B.; García Gerdes, Andrés E. & Stoeser, J. W.
Object Type: Report
System: The UNT Digital Library
Radioactive Source Materials in Los Estados Unidos de Venezuela (open access)

Radioactive Source Materials in Los Estados Unidos de Venezuela

From Abstract: "This report summarizes data available on radioactive source materials in Los Estados Unidos de Venezuela accumulated by geologists of the Dirección Técnica de Geología and antecedent agencies prior to June 1951, and by the writers from June to November 1951."
Date: February 1953
Creator: Wyant, Donald G. & Sharp, William N.
Object Type: Report
System: The UNT Digital Library
Health and Safety Laboratory Environmental Quarterly Report: October 1, 1977, Appendix (open access)

Health and Safety Laboratory Environmental Quarterly Report: October 1, 1977, Appendix

Report that presents information regarding chemical and radioactive pollution in the world. This appendix includes a quarterly report of the deposition of strontium-90 and measurements of radionuclides and lead in surface air, milk, and tapwater. Includes a table of radionuclides.
Date: October 1, 1977
Creator: HASL (New York, N.Y.)
Object Type: Report
System: The UNT Digital Library
Proceedings of the 2015 International Summit on Fibropapillomatosis: Global Status, Trends, and Population Impacts (open access)

Proceedings of the 2015 International Summit on Fibropapillomatosis: Global Status, Trends, and Population Impacts

This document summarizes the findings from the 2015 International Summit pm Fibropapillomatosis (FP) convened in Honolulu, Hawaii June 11-14, 2015. The purpose of this convention was to provide a forum to assess the status and trends of the disease globally and its demographic impact on sea turtles.
Date: August 2016
Creator: Hargrove, Stacy; Work, Thierry; Brunson, Shandell; Foley, Allen M. & Balazs, George
Object Type: Report
System: The UNT Digital Library
Revision of the Spiny Pocket Mice: (Genera Heteromys and Liomys) (open access)

Revision of the Spiny Pocket Mice: (Genera Heteromys and Liomys)

From introduction: "Result of a study of the spiny pocket mice in the collection of the Biological Survey, now numbering nearly 1,000 specimens, supplemented by about 130 in the United States National Museum and from various sources."
Date: September 7, 1911
Creator: Goldman, Edward A.
Object Type: Report
System: The UNT Digital Library
Health and Safety Laboratory Fallout Program Quarterly Summary Report: June 1, 1974 - September 1, 1974, Appendix (open access)

Health and Safety Laboratory Fallout Program Quarterly Summary Report: June 1, 1974 - September 1, 1974, Appendix

Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies. This appendix includes tables of monthly fallout deposition collections from 116 sites across the Earth and a list of radionuclides and their half-lives.
Date: October 1, 1974
Creator: HASL (New York, N.Y.)
Object Type: Report
System: The UNT Digital Library
Health and Safety Laboratory Fallout Program Quarterly Summary Report: March 1, 1974 - June 1, 1974, Appendix (open access)

Health and Safety Laboratory Fallout Program Quarterly Summary Report: March 1, 1974 - June 1, 1974, Appendix

Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies. This appendix includes tables of monthly fallout deposition collections from 116 sites across the Earth and a list of radionuclides and their half-lives.
Date: July 1, 1974
Creator: U.S. Atomic Energy Commission. Health and Safety Laboratory.
Object Type: Report
System: The UNT Digital Library
Health and Safety Laboratory Fallout Program Quarterly Summary Report: September 1, 1973 - December 1, 1973, Appendix (open access)

Health and Safety Laboratory Fallout Program Quarterly Summary Report: September 1, 1973 - December 1, 1973, Appendix

Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies. This appendix includes tables of monthly fallout deposition collections from 116 sites across the Earth and a list of radionuclides and their half-lives.
Date: January 1, 1974
Creator: U.S. Atomic Energy Commission. Health and Safety Laboratory.
Object Type: Report
System: The UNT Digital Library
Health and Safety Laboratory Fallout Program Quarterly Summary Report: December 1, 1973 - March 1, 1974, Appendix (open access)

Health and Safety Laboratory Fallout Program Quarterly Summary Report: December 1, 1973 - March 1, 1974, Appendix

Report documenting radioactive fallout across the world, including both material in the atmosphere and that has deposited into food supplies. This appendix includes tables of monthly fallout deposition collections from 116 sites across the Earth and a list of radionuclides and their half-lives.
Date: April 1, 1974
Creator: U.S. Atomic Energy Commission. Health and Safety Laboratory.
Object Type: Report
System: The UNT Digital Library
Proceedings of the Annual Symposium on Sea Turtle Biology and Conservation: February 1995 (open access)

Proceedings of the Annual Symposium on Sea Turtle Biology and Conservation: February 1995

Compilation of proceedings presented at the annual Symposium on Sea Turtle Biology and Conservation discussing sea turtle science and the preservation of the endangered sea turtles.
Date: June 1996
Creator: Keinath, John A.; Barnard, Debra E.; Musick, John A. & Bell, Barbara A.
Object Type: Report
System: The UNT Digital Library
United States Earthquakes, 1957 (open access)

United States Earthquakes, 1957

Report discussing earthquake activity in the United States during 1957. The report is broken down by regions and has sections for specific earthquakes.
Date: 1957
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Mammals of the La Selva-Braulio Carrillo Complex, Costa Rica (open access)

Mammals of the La Selva-Braulio Carrillo Complex, Costa Rica

Summary of 142 species of mammals of Costa Rica, including geographical distribution, subspecies, last documented sighting in Costa Rica, and origin of specimen examined for each species.
Date: December 1989
Creator: Timm, Robert M.; Wilson, Don E.; Clauson, Barbara L.; LaVal, Richard K. & Vaughan, Christopher S.
Object Type: Report
System: The UNT Digital Library
Proceedings of the Annual Symposium on Sea Turtle Conservation and Biology: 1999 (open access)

Proceedings of the Annual Symposium on Sea Turtle Conservation and Biology: 1999

Compilation of proceedings presented at the nineteenth annual symposium discussing sea turtle conservation and biology.
Date: September 2000
Creator: Kalb, Heather & Wibbels, Thane
Object Type: Report
System: The UNT Digital Library
Variations in isotopic abundances of strontium, calcium, and argon and related topics (open access)

Variations in isotopic abundances of strontium, calcium, and argon and related topics

A report regarding variations in isotopic abundances of strontium, calcium, and argon and related topics
Date: December 1, 1966
Creator: Hurley P. M.; Fairbairn, H. W.; Pinson, W. H. Jr.; Mencher E.; Kolbe, P.; Rand, J. R. et al.
Object Type: Report
System: The UNT Digital Library
Piping in Earth Dams Constructed of Dispersive Clay: Literature Review and Design of Laboratory Tests (open access)

Piping in Earth Dams Constructed of Dispersive Clay: Literature Review and Design of Laboratory Tests

Report providing a literature review and information about the design and constuction of laboratory tests and procedures to assess the susceptibility of homogenous earth dams to dispersive clay piping.
Date: November 1975
Creator: Perry, Edward B.
Object Type: Report
System: The UNT Digital Library
Comparative Risk-Cost-Benefit Study of Alternative Sources of Electrical Energy: A Compilation of Normalized Cost and Impact Data for Current Types of Power Plants and their Supporting Fuel Cycles (open access)

Comparative Risk-Cost-Benefit Study of Alternative Sources of Electrical Energy: A Compilation of Normalized Cost and Impact Data for Current Types of Power Plants and their Supporting Fuel Cycles

From preface: This study is an attempt to quantify societal costs associated with the production of electrical energy by currently available alternative systems under routine operating conditions.
Date: December 1974
Creator: U.S. Atomic Energy Commission. Office of Energy Systems Analysis.
Object Type: Report
System: The UNT Digital Library
Potential Applications of Nuclear Energy in a Marine Environment (open access)

Potential Applications of Nuclear Energy in a Marine Environment

Introduction: In January 1959, Stanford Research Institute was asked by the Office of Maritime Reactors, Division of Reactor Development, of the United States Atomic Energy Commission to identify potential applications of nuclear energy in a marine environment, excluding those involving standard commercial surface ships and direct defense applications, and to conduct a preliminary evaluation of these applications in order to determine which ones appeared most feasible for early implementation.
Date: August 1959
Creator: Duckstad, Eric E.
Object Type: Report
System: The UNT Digital Library
Summarized Data of Gold Production (open access)

Summarized Data of Gold Production

Report presenting data on gold production around the world, with specific focus on the gold production the United States.
Date: 1929
Creator: Ridgway, Robert Henderson
Object Type: Report
System: The UNT Digital Library
The Soviet Seven-Year Plan (1959-65) for Oil (open access)

The Soviet Seven-Year Plan (1959-65) for Oil

Report issued by the Bureau of Mines discussing the Soviet plan to increase oil production between 1959 and 1965. As stated in the introduction, "this report, based almost entirely on Soviet petroleum literature, describes the planned expansion of the U.S.S.R. petroleum industry and attempts to provide some idea of the magnitude of future Soviet oil exports" (p. 2). This report includes tables, and a map.
Date: 1961
Creator: Frendzel, Donald J.
Object Type: Report
System: The UNT Digital Library
Mercury: A Materials Survey (open access)

Mercury: A Materials Survey

Report issued by the U.S. Bureau of Mines discussing materials surveys conducted on mercury. As stated in the foreword, "the surveys dealing with metals and minerals summarize the demand-supply position in the United States and include information on production, imports, consumption, exports, substitutes, and pertinent history" (p. v). This report includes maps, tables, illustrations, and photographs.
Date: 1959
Creator: Pennington, James W. & Bailey, Edgar H.
Object Type: Report
System: The UNT Digital Library
Worldwide Collection and Evaluation of Earthquake Data: Final Report on Evaluation of 1960 Seismicity (open access)

Worldwide Collection and Evaluation of Earthquake Data: Final Report on Evaluation of 1960 Seismicity

The following report was made to study seismic activity worldwide, primarily in the magnitude range of 5.0 and 6.0, within the year of 1960.
Date: June 1964
Creator: Fisher, Ray L.; Baker, R. G. & Guidroz, R. R.
Object Type: Report
System: The UNT Digital Library
Geologic Names of North America Introduced in 1936-1955 (open access)

Geologic Names of North America Introduced in 1936-1955

A report about geologic names. It contains new names, old names, and changes to names.
Date: 1957
Creator: Wilson, Druid; Sando, William J. & Kopf, Rudolph W.
Object Type: Report
System: The UNT Digital Library
Bibliography of Petroleum and Allied Substances, 1921 (open access)

Bibliography of Petroleum and Allied Substances, 1921

From Introduction: "This bulletin is the sixth in the series of petroleum bibliographies published by the Bureau of Mines, Bulletins 149, 165, 180, 189, and 216 being compilations for the years 1915, 1916, 1917, 1918, and 1919-20 respectively. In this bulletin the same general plan has been followed in arranging the references, but one or two additions have been made in the classification."
Date: 1923
Creator: Burroughs, E. H.
Object Type: Report
System: The UNT Digital Library
Stratigraphy and Geologic History of the Montana Group and Equivalent Rocks, Montana, Wyoming, and North and South Dakota (open access)

Stratigraphy and Geologic History of the Montana Group and Equivalent Rocks, Montana, Wyoming, and North and South Dakota

From introduction: This is a progress report on regional stratigraphic and paleontologic studies of the Upper Cretaceous Montana Group and equivalent rocks in the northern part of the western interior of the United States. It presents preliminary data on the positions of strandlines during a 14-m.y. (million year) span of the Late Cretaceous as well as our interpretations of the geologic history of this period.
Date: 1973
Creator: Gill, James R. & Cobban, William Aubrey
Object Type: Report
System: The UNT Digital Library