Zobrazeno 1 - 10 of 257 pro vyhledávání: '"T. Mark Harrison"'
1
Temperature and co-crystallization effects on Zr isotopes
Autor: Heather M. Kirkpatrick, T. Mark Harrison, Mauricio Ibañez-Mejia, François L.H. Tissot, Scott A. MacLennan, Elizabeth A. Bell
Publikováno v: Geochimica et Cosmochimica Acta. 352:69-85
We undertook Zr isotope measurements on zircon, titanite, biotite, amphibole, and whole rocks from the La Posta pluton (Peninsular Ranges, southern California) together with trace element analyses and U-Pb age measurements to understand the controls
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b5b29f33975a6e0d80c2d9e698124b52
https://doi.org/10.1016/j.gca.2023.05.004
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4
In situ 87Rb–87Sr analyses of terrestrial and extraterrestrial samples by LA-MC-ICP-MS/MS with double Wien filter and collision cell technologies
Autor: Nicolas Dauphas, Timo Hopp, Grant Craig, Zhe J. Zhang, Maria C. Valdes, Philipp R. Heck, Bruce L. A. Charlier, Elizabeth A. Bell, T. Mark Harrison, Andrew M. Davis, Laure Dussubieux, Patrick R. Williams, Michael J. Krawczynski, Claudia Bouman, Nicholas S. Lloyd, Darren Tollstrup, Johannes B. Schwieters
Publikováno v: Journal of Analytical Atomic Spectrometry. 37:2420-2441
Double-Wien filter-selection-aperture and hexapole-collision-cell technologies coupled to laser ablation multicollector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS/MS) enables in situ analysis of 87Sr variations produced by 87Rb decay.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::abb5044574427e5a65270ed27ca70d2d
https://doi.org/10.1039/d2ja00135g
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7
Impact of fault damage on eastern Tibet topography
Autor: T. Mark Harrison, Seulgi Moon, An Yin, Heather M. Kirkpatrick
Publikováno v: Geology. 49:30-34
Tectonic deformation can influence spatiotemporal patterns of erosion by changing both base level and the mechanical state of bedrock. Although base-level change and the resulting erosion are well understood, the impact of tectonic damage on bedrock
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ba9394850928fd780f01d7358445def0
https://doi.org/10.1130/g48179.1
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8
Constraining crustal silica on ancient Earth
Autor: T. Mark Harrison, C. Brenhin Keller
Publikováno v: Proc Natl Acad Sci U S A
Accurately quantifying the composition of continental crust on Hadean and Archean Earth is critical to our understanding of the physiography, tectonics, and climate of our planet at the dawn of life. One longstanding paradigm involves the growth of a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::36afe5cd115557db3aa04c4422953b32
https://doi.org/10.1073/pnas.2009431117
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10
Stepwise chemical abrasion–isotope dilution–thermal ionization mass spectrometry with trace element analysis of microfractured Hadean zircon
Autor: C. Brenhin Keller, T. Mark Harrison, Blair Schoene, Patrick Boehnke
Publikováno v: Geochronology. 1:85-97
The Hadean Jack Hills zircons represent the oldest known terrestrial material, providing a unique and truly direct record of Hadean Earth history. This zircon population has been extensively studied via high-spatial-resolution high-throughput in situ
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b254a5873a3ca0cba2aff5dd78419eb
https://doi.org/10.5194/gchron-1-85-2019
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