Zobrazeno 1 - 10
of 56
pro vyhledávání: '"Herwart Helmstaedt"'
Autor:
Andy Moore, Herwart Helmstaedt
Publikováno v:
Earth-Science Reviews. 241:104434
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05fd22dd3f5c5dfa618b67957542a9a7
https://doi.org/10.1016/j.earscirev.2023.104434
https://doi.org/10.1016/j.earscirev.2023.104434
Publikováno v:
Goldschmidt2022 abstracts.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3ee1a399f8566cb2e6ca97d1d11734ab
https://doi.org/10.46427/gold2022.10088
https://doi.org/10.46427/gold2022.10088
Autor:
A. E. Moore, Herwart Helmstaedt
Publikováno v:
Nature. 570:E26-E27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2a0889f08f59dd7182eceddfe49cfb6
https://doi.org/10.1038/s41586-019-1245-9
https://doi.org/10.1038/s41586-019-1245-9
Publikováno v:
Geology. 43:727-730
Th-Pb dating of monazite in xenoliths of low-temperature metamorphic eclogite facies rocks from diatremes of the Navajo volcanic field in the center of the Colorado Plateau (southwest United States) yields ages of ca. 28 Ma. Because monazite is not a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32c0b9a667a7ad758c409b7ee1a1b0a7
https://doi.org/10.1130/g36932.1
https://doi.org/10.1130/g36932.1
Publikováno v:
American Mineralogist. 99:1277-1283
Guyanaite, naturally occurring β-CrOOH, has been identified in a xenolith of Cr-rich omphacitite from the Moses Rock diatreme in the Navajo Volcanic Field of the southwestern United States. It occurs as the dominant phase in small clusters of access
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::488e93340c7af2f885bb7258793bed49
https://doi.org/10.2138/am.2014.4771
https://doi.org/10.2138/am.2014.4771
Autor:
Ichiko Shimizu, Nagayoshi Katsuta, Mineo Kumazawa, Shin-ichi Kawakami, Herwart Helmstaedt, Masao Takano
Publikováno v:
Journal of Metamorphic Geology. 30:457-472
The Archean (2.8 Ga) Banded Iron Formation (BIF) of the Bell Lake region of Yellowknife greenstone belt, Canada is recrystallized to metamorphic assemblages of the amphibolite facies. This BIF is characterized by centimetre-scale Fe-rich and Si-rich
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6fbc19c8ede8321771e74410ac5211a
https://doi.org/10.1111/j.1525-1314.2012.00975.x
https://doi.org/10.1111/j.1525-1314.2012.00975.x
Publikováno v:
The Canadian Mineralogist. 48:1385-1408
Ages of syngenetic inclusions of peridotitic (P-type) and eclogitic (E-type) minerals in diamond show that episodes of diamond formation in the subcontinental lithospheric mantle correlate with important craton-forming events deduced from the surface
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fcedfe0ab9fcd6c508b2a73834f6acf0
https://doi.org/10.3749/canmin.48.5.1385
https://doi.org/10.3749/canmin.48.5.1385
Publikováno v:
The Canadian Mineralogist. 48:571-582
Thesis (Master, Geological Sciences & Geological Engineering) -- Queen's University, 2009-09-17 17:10:11.078
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0fef2e29fdbfdc6a05e511d5b2d0d22c
https://doi.org/10.3749/canmin.48.3.571
https://doi.org/10.3749/canmin.48.3.571
Publikováno v:
Economic Geology. 105:689-712
Diamonds form in the upper mantle during episodic events and have been transported to the Earth’s surface from at least the Archean to the Phanerozoic. Small diamonds occur as inclusions in robust minerals in tectonically activated, ultrahigh-press
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e355154221bbc158d41cfc68b8fa132
https://doi.org/10.2113/gsecongeo.105.3.689
https://doi.org/10.2113/gsecongeo.105.3.689