Publications
Listed below are publication products directly associated with the Geology, Energy & Minerals Science Center:
Filter Total Items: 1276
Government investment in mineral resource information on leasable public lands: The case of strippable coal Government investment in mineral resource information on leasable public lands: The case of strippable coal
A scheme is presented to aid the government in estimating the net benefits, in terms of itsrecovery of expected rents, of performing various levels of exploration of mineral tracts prior to leasing and making such information available to potential bidders. Conditions are identified where the government will profit by investment in geologic data that are collected and provided to...
Authors
Emil D. Attanasi
A note on petroleum industry exploration efficiency A note on petroleum industry exploration efficiency
No abstract available.
Authors
Emil D. Attanasi
Offshore exploration and industry change: The case of the Gulf of Mexico Offshore exploration and industry change: The case of the Gulf of Mexico
This paper considers industry structure and the exploration performance (by size class of operator) of firms searching for oil and gas in the U.S. Gulf of Mexico. It also tracks the changes in industry structure that have occurred in response to a decline in the quality of remaining prospects in the area. Data presented indicate that because vertically integrated majors dominated in...
Authors
Emil D. Attanasi, L. J. Drew
Microprobe analyses of hornblendes from 5 calc-alkalic intrusive complexes, with data tables for other calcic amphiboles and BASIC computer programs for data manipulation Microprobe analyses of hornblendes from 5 calc-alkalic intrusive complexes, with data tables for other calcic amphiboles and BASIC computer programs for data manipulation
No abstract available.
Authors
Jane Hammarstrom
Chromite from the Blue Ridge province of North Carolina Chromite from the Blue Ridge province of North Carolina
Accessory chromite in dunite shows a variety of textures that indicate alteration. One group, type A, consists of four types of chromite: clean chromite; lattice chromite, in which the invading chlorite occurs along three directions in the (100) plane; optically zoned chromite; and poikiloblastic chromite. Most of type A chromites are surrounded by chromian clinochlore. The other group...
Authors
Bruce R. Lipin
Economics and appraisal of conventional oil and gas resources in the western Gulf of Mexico Economics and appraisal of conventional oil and gas resources in the western Gulf of Mexico
The oil and gas industry frequently appraises undiscovered oil and gas resources on a regional basis to decide whether to start or continue exploration programs. The appraisals are of little value unless conditioned by estimates of the costs of finding and producing the resources. This paper presents an economic appraisal of undiscovered oil and presents an economic appraisal of...
Authors
Emil Attanasi, John L. Haynes
International strategic minerals inventory summary report; chromium International strategic minerals inventory summary report; chromium
Major world resources of chromium, a strategic mineral commodity, are described in this summary report of information in the International Strategic Minerals Inventory {ISMI}. ISMI is a cooperative data-collection effort of earth-science and mineral-resource agencies in Australia, Canada, the Federal Republic of Germany, the Republic of South Africa, and the United States of America...
Authors
J.H. DeYoung, M. P. Lee, B. R. Lipin
Magmatic epidote and its petrologic significance Magmatic epidote and its petrologic significance
Epidote is a major magmatic mineral in tonalite and granodiorite in a belt coextensive with the Mesozoic accreted terranes between northern California and southeastern Alaska. Textural and chemical evidence indicates that epidote crystallized as a relatively late but magmatic mineral that formed through reaction with hornblende in the presence of a melt phase. The observed relations...
Authors
E-An Zen, J. M. Hammarstrom
Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee Mineral resources of the Citico Creek Wilderness Study Area, Monroe County, Tennessee
No abstract available.
Authors
John F. Slack, E. R. Force, P. T. Behum, B. B. Williams
Whole-rock trace element analyses of chromite-bearing rocks from the lowermost cyclic unit of the Stillwater Complex, Montana Whole-rock trace element analyses of chromite-bearing rocks from the lowermost cyclic unit of the Stillwater Complex, Montana
No abstract available.
Authors
P. J. Loferski, Sol Berman, Hezekiah Smith, B. R. Lipin