Publications
Listed below are publication products directly associated with the Geology, Energy & Minerals Science Center:
Filter Total Items: 1162
Hydrothermal ore-forming processes in the light of studies in rock- buffered systems: I. Iron-copper-zinc-lead sulfide solubility relations
Experimental studies, using cold-seal and extraction vessel techniques, were conducted on Fe, Pb, Zn, and Cu sulfide solubilities in chloride solutions at temperatures from 300 degrees to 700 degrees C and pressures from 0.5 to 2 kbars. The solutions were buffered in pH by a quartz monzonite and the pure potassium feldspar-muscovite-quartz assemblage and in f (sub S 2 ) - f (sub O 2 ) largely by t
Authors
J.J. Hemley, G.L. Cygan, J.B. Fein, Gilpin R. Robinson,, W. M. d'Angelo
National Geochemical Data Base; National Uranium Resource Evaluation data for the conterminous Western United States
No abstract available.
Authors
J. D. Hoffman, Gregory B. Gunnells, James M. McNeal
USGS research on mineral resources, 1991; program and abstracts
No abstract available.
Authors
Elizabeth E. Good, John F. Slack, Rama K. Kotra
Alternative natural gas contract and pricing structures and incentives of the LNG industry
Gas conversion to liquefied gas (LNG) and transport by LNG tankers is one option for meeting expanding gas consumption and for gas traded internationally. This paper examines the impact of the traditional gas contract provisions of indefinite pricing, market out price ceilings, and take‐or‐pay requirements on the profitability of LNG projects in the context of markets characterized by price and qu
Authors
Emil D. Attanasi
Estimating potential for small fields in mature petroleum provinces: Discussion
No abstract available.
Authors
John H. Schuenmeyer, L. J. Drew, David H. Root, Emil D. Attanasi
Economic implications of petroleum field size distributions
The unprecedented natural gas price increases in the late 1970's and early 1980's allowed a glimpse of part of the in-situ distribution of natural gas fields that had been hidden by economic truncation. Analysis of those discoveries shows the distribution to be characterized by progressively larger numbers of fields as size category declines. This paper demonstrates the effects of economic truncat
Authors
Emil D. Attanasi, Lawrence J. Drew
Mineral chemistry of the Pioneer Batholith, Beaverhead County, southwestern Montana; microprobe data tables for feldspar, amphibole, mica, pyroxene, and necessary minerals
No abstract available.
Authors
J. M. Hammarstrom
Geology of the Mount Aetna volcanic center, Chaffee and Gunnison Counties, Colorado
No abstract available.
Authors
Priestley Toulmin, Jane Marie Hammarstrom
Summary results of the Glens Falls CUSMAP project, New York, Vermont, and New Hampshire
No abstract available.
Authors
John F. Slack
Petrology of chromite-bearing rocks from the lowermost cyclic units in the Stillwater Complex, Montana
No abstract available.
Authors
P. J. Loferski, B. R. Lipin, R.W. Cooper
Platinum-group element abundance and distribution in chromite deposits of the Acoje Block, Zambales Ophiolite Complex, Philippines
Platinum-group elements (PGE) occur in ore-grade concentration in some of the chromite deposits related to the ultramafic section of the Acoje Block of the Zambales Ophiolite Complex. The deposits are of three types: Type 1 - associated with cumulate peridotites at the base of the crust; Type 2 - in dunite pods from the top 1 km of mantle harzburgite; and Type 3 - like Type 2, but in deeper levels
Authors
G.C. Bacuta, R.W. Kay, A.K. Gibbs, B. R. Lipin
High-density volatiles in the system C-O-H-N for the calibration of a laser Raman microprobe
Three methods have been used to produce high-density volatiles in the system C-O-H-N for the calibration of a laser Raman microprobe (LRM): synthetic fluid-inclusion, sealed fused-quartz-tube, and high-pressure-cell methods. Because quantitative interpretation of a Raman spectrum of mixed-volatile fluid inclusions requires accurate knowledge of pressure- and composition-sensitive Raman scattering
Authors
I.-Ming Chou, J. D. Pasteris, J. C. Seitz