Zobrazeno 1 - 7 of 7 pro vyhledávání: '"Bruce M. Loeffler"'
4
Geochemistry of high-potassium rocks from the mid-Tertiary Guffey volcanic center, Thirtynine Mile volcanic field, central Colorado
Autor: Gordon N. Keating, Stanley A. Mertzman, Kimberly Sultze, Tammy Filson, Reinhard A. Wobus, Edward A. Venzke, David A. Johnson, Bruce M. Loeffler, Miriam T. Rothwarf, Anne E. Benjamin, Elizabeth A. Eide, David W. Mochel
Publikováno v: Geology. 18:642
The Guffey volcanic center is the largest within the 2000 km{sup 2} mid-Tertiary Thirtynine Mile volcanic field of central Colorado. This study is the first to provide extensive chemical data for these alkalic volcanic and subvolcanic rocks, which pr
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::53be69af040a76cee7439faec67cf301
https://doi.org/10.1130/0091-7613(1990)018<0642:gohprf>2.3.co
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7
Neogene rhyolites of the northern Jemez volcanic field, New Mexico
Autor: Bruce M. Loeffler, W. Scott Baldridge, David T. Vaniman, Muhammed Shafiqullah
Publikováno v: Journal of Geophysical Research. 93:6157
Volcanic centers previously mapped as the 20 Ma El Rechuelos Rhyolite in the northern Jemez volcanic field, New Mexico, include three distinct episodes of rhyolitic volcanism. An early (7.5 Ma) extrusive dome of flow-banded biotite rhyolite and an in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::520dea0bfe616a4ed8d6faf77565c924
https://doi.org/10.1029/jb093ib06p06157
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