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Pseudomorphic 9-line silician ferrihydrite and Fe-rich serpentine-group minerals in FeTi oxide-rich ferroan peridotite, Laramie anorthosite complex, Wyoming, U.S.A

Autor: David J. Joswiak, Bernard W. Evans, Scott M. Kuehner

Publikováno v: American Mineralogist. 106:953-963

Low-temperature hydrous alteration of FeTi oxide-rich ferroan peridotite, Laramie anorthosite complex, Wyoming, produced silician ferrihydrite, cronstedtite, greenalite, hisingerite, and talc. Ferrihydrite occurs as nanocrystals in ~50 nm diameter gr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::716e83e47347bc61fdecede91c7dc254
https://doi.org/10.2138/am-2021-7768

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Multistage mantle metasomatism deciphered by Mg−Sr−Nd−Pb isotopes in the Leucite Hills lamproites

Autor: Ji-Feng Ying, Scott M. Kuehner, Kwan-Nang Pang, Fang-Zhen Teng, Yang Sun

Publikováno v: Contributions to Mineralogy and Petrology. 176

Cratonic lamproites bear extreme Sr−Nd−Pb isotopic compositions widely known as enriched mantle I (EMI), yet the origin of the EMI reservoir remains controversial. Here, we explore this issue by examining Mg−Sr−Nd−Pb isotopic compositions o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a101d58451c1d5699e54deb985a99bd1
https://doi.org/10.1007/s00410-021-01801-9

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Akademický článek

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Cognitive profiles and heritability estimates in the Old Order Amish

Autor: Anya Savransky, Katie L. Nugent, Deanna E. Jurius, Braxton D. Mitchell, Ryan M. Kuehner, Alan R. Shuldiner, L. Elliot Hong, Christopher Gaudiot, James M. Gold, Heather Bruce, Peter Kochunov

Publikováno v: Psychiatric Genetics. 26:178-183

OBJECTIVE This study aimed to establish the applicability of the Repeatable Battery for the Assessment of Neuropsychological Status (RBANS) in the Old Order Amish (OOA) and to assess the genetic contribution toward the RBANS total score and its cogni

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::056a7312de5ba5418f019487d0eb6aa9
https://doi.org/10.1097/ypg.0000000000000134

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Serpentine–Hisingerite Solid Solution in Altered Ferroan Peridotite and Olivine Gabbro

Autor: Benjamin M. Tutolo, Scott M. Kuehner, Bernard W. Evans

Publikováno v: Minerals, Vol 9, Iss 1, p 47 (2019)
Minerals
Volume 9
Issue 1

We present microanalyses of secondary phyllosilicates in altered ferroan metaperidotite, containing approximately equal amounts of end-members serpentine ((Mg,Fe2+)3Si2O5(OH)4) and hisingerite (□Fe3+2Si2O5(OH)4·
nH2O). These analyses sug

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4e5d08ba185c77efa9f9cf43bb9747c3
https://doi.org/10.3390/min9010047

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Implications of ferrous and ferric iron in antigorite

Autor: Bernard W. Evans, Scott M. Kuehner, M. Darby Dyar

Publikováno v: American Mineralogist. 97:184-196

Microprobe analyses of antigorite show that (Al+Cr) and inferred Fe 3+ correlate inversely with Si apfu in a Tschermaks substitution. This observation suggests that the uptake of Fe 3+ is not simply related to f O 2 . For Si = 1.95 apfu estimated Fe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7aa41da82be0feb8e713c1a7eea3fd4d
https://doi.org/10.2138/am.2012.3926

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A nickel-iron analogue of balangeroite and gageite (Sasaguri, Kyushu, Japan)

Autor: Bernard W. Evans, Scott M. Kuehner

Publikováno v: European Journal of Mineralogy. 23:717-720

In two samples of antigorite serpentinite from Sasaguri, Kyushu, Japan, we have found trace amounts of a NiFe-rich silicate whose atomic proportions in terms of the ratio of M to T cations match those of the fibrous MgFe-silicate hydrate balangeroite

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c6202e12970c6eea90c6d8498adfb69c
https://doi.org/10.1127/0935-1221/2011/0023-2111

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Magnetite-free, yellow lizardite serpentinization of olivine websterite, Canyon Mountain complex, N.E. Oregon

Autor: Anastasia Chopelas, Scott M. Kuehner, Bernard W. Evans

Publikováno v: American Mineralogist. 94:1731-1734

We document an example of serpentinization of olivine and orthopyroxene that produced virtually no magnetite, but instead relatively Fe-rich yellow-colored lizardite (X Fe = 0.08 to 0.17), and the native Fe-Ni-Co metals, awaruite and wairauite. Lizar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::04c07b6dc373456cc5f8612a3e98113f
https://doi.org/10.2138/am.2009.3301

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Geochemistry of Mafic Enclaves and Host Granitoids from the Chilliwack Batholith, Washington: Chemical Exchange Processes between Coexisting Mafic and Felsic Magmas and Implications for the Interpretation of Enclave Chemical Traits

Autor: Jeffrey H. Tepper, Scott M. Kuehner

Publikováno v: The Journal of Geology. 112:349-367

Mafic enclaves from three plutons in the Chilliwack batholith have been compared with contemporaneous mafic stocks in order to determine (1) the processes by which mafic and felsic magmas hybridize in the plutonic environment and (2) whether analysis

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e988445f554654cce1076a7dce625928
https://doi.org/10.1086/382764

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