Zobrazeno 1 - 10
of 23
pro vyhledávání: '"Robert K. Popp"'
Publikováno v:
American Mineralogist. 97:951-961
Iron is a common constituent in minerals from the Earth’s crust and upper mantle and often occurs in minerals as mixtures of two valence states, Fe 3+ or Fe 2+ . Quantification of the values of Fe 3+ /FeTotal, where FeTotal = Fe 3+ +Fe 2+ , in mine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d66db4093bd5648b7d22e75304b79c8
https://doi.org/10.2138/am.2012.3963
https://doi.org/10.2138/am.2012.3963
Autor:
William M. Lamb, Robert K. Popp
Publikováno v:
American Mineralogist. 94:41-52
H 2 O can affect the thermophysical properties of the mantle, and nominally anhydrous mantle minerals, such as olivine, pyroxenes, and garnet, may be an important reservoir of mantle H 2 O. However, the H 2 O content of nominally anhydrous mantle min
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b8e80464376071c1e72d72778257d17
https://doi.org/10.2138/am.2009.2950
https://doi.org/10.2138/am.2009.2950
Publikováno v:
American Mineralogist. 91:54-66
An experimental study was carried out to investigate the equilibrium between Fe oxy-component and hydroxy-component in Ti-bearing calcic amphiboles, as described in the dehydrogenation/oxidation reaction \batchmode \documentclass[fleqn,10pt,legalpape
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::733c2411efdf784c6e418c10d9b879bf
https://doi.org/10.2138/am.2006.1838
https://doi.org/10.2138/am.2006.1838
Publikováno v:
Geochimica et Cosmochimica Acta. 66:3971-3986
Synthesis of fluid inclusions in the CH4-H2O-NaCl system was accomplished by subjecting fractured quartz or fluorite, along with known quantities of CH4, H2O, and NaCl, to a pressure of 2 kbar and temperatures of 300, 400, 500, or 600°C, in sealed A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56e8785b921dd3c62d9e6efcd5549fd7
https://doi.org/10.1016/s0016-7037(02)00963-8
https://doi.org/10.1016/s0016-7037(02)00963-8
Autor:
Robert K. Popp, David Virgo
Publikováno v:
American Mineralogist. 85:753-759
The substitution mechanisms of Fe and Ti have been determined in phlogopite megacrysts from an ultramafic lamprophyre dyke from the Okenyenya igneous complex, northwestern Namibia. Mica separates were heat-treated from 800 to 900 °C, 1 atm to 10 kba
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01fc328b47cfd62e3997c4460559aeea
https://doi.org/10.2138/am-2000-5-614
https://doi.org/10.2138/am-2000-5-614
Publikováno v:
American Mineralogist. 83:942-946
We have estimated the water content of Mars’ interior by using analyzed water contents of kaersutite inclusions from shergottites nakhlites chassignites (SNC) meteorites in conjunction with an experimentally-derived crystal-chemical model of kaersu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::467c24380c2292a155d8f5f90144410c
https://doi.org/10.2138/am-1998-9-1002
https://doi.org/10.2138/am-1998-9-1002
Publikováno v:
American Mineralogist. 82:790-806
Competition among atomic or molecular species for occupancy of crystallographic sites exaggerates correlations among chemical elements in suites of mineral chemical data, a phenomenon known as closure. Such exaggerated correlations can lead to incorr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a719e0edc38f1b7db28d17b8812bda54
https://doi.org/10.2138/am-1997-7-818
https://doi.org/10.2138/am-1997-7-818
Publikováno v:
Geochimica et Cosmochimica Acta. 60:1885-1897
Synthesis of fluid inclusions in the CH4H2ONaCl system was accomplished by subjecting fractured quartz, along with known quantities of CH4, H2O, and NaCl, to a pressure of 1 kbar and temperatures of 400, 500, or 600°C, in sealed Au capsules. U
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::efc9d36fc5505a4ffaf78fcd5e533960
https://doi.org/10.1016/0016-7037(96)00070-1
https://doi.org/10.1016/0016-7037(96)00070-1
Publikováno v:
American Mineralogist. 80:1347-1350
Experiments conducted on a natural kaersutitic amphibole, combined with statistical analysis of high-quality chemical analyses reported in the literature, document that both Fer+ and Ti in this group of Ti-rich hornblendes are accommodated by the oxy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f88523953e4093e9184db61a23ae78a1
https://doi.org/10.2138/am-1995-11-1226
https://doi.org/10.2138/am-1995-11-1226
Publikováno v:
American Mineralogist. 80:534-548
Experiments have been carried out from 500 to 1200 °C, 1 atm to 10 kbar, and fH2from that of the IQF buffer to air, to quantify the variation of Fe oxy-component content in a titanian pargasite megacryst amphibole from Vulcan's Throne, Arizona. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db20c05e6449435b221a1eaceaf1945e
https://doi.org/10.2138/am-1995-5-613
https://doi.org/10.2138/am-1995-5-613