Výsledky vyhledávání - "Thomas M. Usselman"

Spatial Data Needs: The Future of the National Mapping Program

Autor: Thomas M. Usselman, Thomas C. Finnie, Barbara B. Petchenik, John D. Bossler

Publikováno v: Cartography and Geographic Information Systems. 17:237-242

The Mapping Science Committee of the National Academy of Sciences/National Research Council (NRC) issued a report in early 1990 on Spatial Data Needs: The Future of the National Mapping Program. This article presents the context in which the committe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::06d9ea820b374ebed29ae4a74fd0c8a4
https://doi.org/10.1559/152304090783814113

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Experimental approach to the state of the core; Part I, The liquidus relations of the Fe-rich portion of the Fe-Ni-S system from 30 to 100 kb

Autor: Thomas M. Usselman

Publikováno v: American Journal of Science. 275:278-290

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::62e770c91cf27bda4b371d135260cb09
https://doi.org/10.2475/ajs.275.3.278

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Experimental approach to the state of the core; Part II, Composition and thermal regime

Autor: Thomas M. Usselman

Publikováno v: American Journal of Science. 275:291-303

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a6b7cb21e407a78d37abd65913d2cd77
https://doi.org/10.2475/ajs.275.3.291

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Thermal control of low-pressure fractionation processes

Autor: Thomas M. Usselman, Dennis S. Hodge

Publikováno v: Journal of Volcanology and Geothermal Research. 4:265-281

Thermal models detailing the solidification paths for shallow basaltic magma chambers (both open and closed systems) were calculated using finite-difference techniques. The total solidification time for closed chambers are comparable to previously pu

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2a2408e3682d7ec9aee9ec7f6171697b
https://doi.org/10.1016/0377-0273(78)90017-3

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Evidence of the Bedrock Beneath the Greenland Ice Sheet Near Camp Century, Greenland

Autor: Joseph Wooden, John Fountain, Thomas M. Usselman, Chester C. Langway

Publikováno v: Journal of Glaciology. 27:193-197

Igneous and metamorphic cobbles in sub-ice material recovered from a drill core which penetrated the ice sheet at Camp Century, Greenland, provide a rare look at the geology beneath the ice in the interior of Greenland. The sub-ice material can be co

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2c1ba6870743b3fcf0e3ceb2cdafc8d6
https://doi.org/10.1017/s0022143000011370

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Groundwater Contamination

Autor: John D. Bredehoeft, Thomas M. Usselman

Publikováno v: Science. 224:1292-1292

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9d4b9f812567f0196d23398a1245efc8
https://doi.org/10.1126/science.224.4655.1292.a

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GIS Symposium: Integrating technology and geoscience applications

Autor: William J. Hinze, Thomas M. Usselman, Brian R. Shaw

Publikováno v: Eos, Transactions American Geophysical Union. 70:553

An international symposium on geographic information systems (GIS), entitled “GIS: Integrating Technology and Geoscience Applications,” was held September 26–30, 1988, in Denver, Colo. GIS is a relatively recent technology for managing, retriev

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::be994c2fe29e3a0c78e0a4238eb8ce23
https://doi.org/10.1029/89eo00140

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