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pro vyhledávání: '"S R Bohlen"'
Autor:
S. R. Bohlen
Publikováno v:
Journal of Metamorphic Geology. 9:223-229
The tectonic settings for the formation and evolution of regional granulite terranes and the lowermost continental crust can be deduced from pressure–temperature–time (P–T–time) paths and constrained by petrological and geophysical considerat
Autor:
S. R. Bohlen, K. D. Collerson, J. V. Robinson, Russell S. Harmon, Gregory J. Nimz, Sidney Niemeyer, D. C. Kuentz, Kenneth L. Cameron
Publikováno v:
Journal of Geophysical Research. 97:17353
The principal deep crustal rock types found at the La Olivina xenolith locality in southeastern Chihuahua, Mexico, are mafic granulites, paragneisses, and intermediate- to silicic-composition orthogneisses. These granulite facies xenoliths are interp
Autor:
Eric J. Essene, S. R. Bohlen
Publikováno v:
Contributions to Mineralogy and Petrology. 65:433-442
Anorthosites, mangerites and charnockites from metamorphosed anorthosite massifs (the Adirondacks and elsewhere) commonly contain coarsely exsolved pyroxenes with substantial amounts of exsolved orthopyroxene (in clinopyroxene) and clinopyroxene (in
Publikováno v:
Contributions to Mineralogy and Petrology. 97:66-71
Clinopyroxene with exsolved orthopyroxene and coexisting orthopyroxene with exsolved clinopyroxene (inverted pigeonite) in metaigneous rocks from the Adirondacks, New York, were experimentally homogenized at temperatures near those inferred for their
Autor:
S. R. Bohlen, Eric J. Essene
Publikováno v:
Contributions to Mineralogy and Petrology. 62:153-169
Thermometry of regionally metamorphosed granulites of the Adi- rondack Highlands has been undertaken using feldspar and iron-titanium- oxide equilibria. Electron microprobe analyses of 20 coexisting oligoclase (An18 3o) and microcline perthite (Ors7
Publikováno v:
The Journal of Geology. 90:127-138
Processes involving melting have been of fundamental importance in the origin and evolution of the Earth and other terrestrial planets, but thermodynamic data and physical properties of liquids necessary to calculate phase relationships are not well
Autor:
S. R. Bohlen, Klaus Mezger
Publikováno v:
Science (New York, N.Y.). 244(4902)
Differences in composition and pressures of equilibration between exposed, regional granulite terranes and suites of granulite xenoliths of crustal origin indicate that granulite terranes do not represent exhumed lowermost crust, as had been thought,
Publikováno v:
Review of Scientific Instruments. 52:1903-1904
A newly designed furnace assembly for piston‐cylinder, high‐pressure apparatus uses NaCl or KBr rather than hydrous materials such as talc or pyrophyllite. Unlike previous designs, our cell can be used hundreds of degrees above the melting temper
Publikováno v:
Geology. 6:582