Zobrazeno 1 - 10
of 35
pro vyhledávání: '"James J. McGee"'
Publikováno v:
Journal of Organizational Change Management. 16:378-395
While spirituality and religion in work (SRW) as an inquiry field has been gaining interest in the popular press, it has only recently been recognized by the academic community. Consequently, its relevance to important research and its legitimacy in
Publikováno v:
Journal of Metamorphic Geology. 21:65-80
The central part of the Carolina terrane in western South Carolina comprises a 30 to 40 km wide zone of high grade gneisses that are distinct from greenschist facies metavolcanic rocks of the Carolina slate belt (to the SE) and amphibolite facies met
Publikováno v:
Geochimica et Cosmochimica Acta. 66:1269-1284
We present results of a secondary ion mass spectrometry study of the rare earth elements (REEs) in the minerals of two samples of lunar ferroan anorthosite, and the results are applicable to studies of REEs in all igneous rocks, no matter what their
Autor:
Donald R. Peacor, Satoshi Matsubara, Yoichi Motoyoshi, Edward S. Grew, James J. McGee, Roland C. Rouse, Hiroshi Shibasaki, Ritsuro Miyawaki, Yoshikuni Hiroi, Noboru Furukawa, Tomokazu Hokada, Kazumi Yokoyama, Shu-Chun Su
Publikováno v:
American Mineralogist. 87:160-170
Ominelite, (Fe,Mg)Al3BSiO9, is the Fe2+ analog of grandidierite. The mineral occurs as elongated and euhedral to equant and anhedral grains in close association with sekaninaite (Fe-dominant analogue of cordierite), garnet, biotite, andalusite, topaz
Autor:
Klaus Keil, James J. McGee
Publikováno v:
Microscopy and Microanalysis. 7:200-210
The impact of electron probe microanalysis on the study of geological and planetary materials has been tremendous. Electron microprobes evolved into routine analytical instruments in geological research laboratories as instrument capabilities improve
Autor:
James J. McGee, John W. Shervais
Publikováno v:
American Mineralogist. 84:806-820
Alkali suite anorthosites and norites are the second most common plutonic rock association in the western lunar highlands (after the magnesian suite), but their origin poses an enigma for most petrologic models of lunar crustal evolution. Some models
Autor:
James J. McGee, John W. Shervais
Publikováno v:
Journal of Geophysical Research: Planets. 104:5891-5920
Plutonic rocks found at the Apollo 14 site comprise four lithologic suites: the magnesian suite, the alkali suite, evolved lithologies, and the ferroan anorthosite suite (FAN). Rocks of the magnesian suite include troctolite, anorthosite, norite, dun
Autor:
James J. McGee, John W. Shervais
Publikováno v:
Geochimica et Cosmochimica Acta. 62:3009-3023
Most of the Moon’s highland crust formed during the period 4.65–4.45 Ga ago from a vast magma ocean up to 800 km deep (Hess and Parmentier, 1995) . This early lunar crust comprises Fe-rich anorthosites with calcic plagioclase compositions. Subseq
Autor:
Roland C. Rouse, Michael Wiedenbeck, Donald R. Peacor, Douglas E. Thost, Shu-Chun Su, Charles K. Shearer, Joep P. P. Huijsmanns, Martin G. Yates, Edward S. Grew, James J. McGee
Publikováno v:
American Mineralogist. 83:638-651
Boralsilite, the first natural anhydrous Al-B-silicate, is a high-temperature phase in pegmatites cutting granulite-facies metapelitic rocks at Larsemann Hills, Prydz Bay, east Antarctica (type locality) and Almgjotheii in the contact aureole of the
Publikováno v:
Geochimica et Cosmochimica Acta. 62:1255-1283
The rare earth elements (REE) and selected other trace elements were measured in plagioclase and pyroxene from nine samples of the lunar ferroan anorthosite (FAN) suite of rocks. Samples were selected from each of four FAN subgroups previously define