Zobrazeno 1 - 10
of 175
pro vyhledávání: '"Timm, John"'
Autor:
Stefan M. Schmalholz, Lyudmila Khakimova, Yury Podladchikov, Erwan Bras, Philippe Yamato, Timm John
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 9, Pp n/a-n/a (2024)
Abstract Hydration and dehydration reactions play pivotal roles in plate tectonics and the deep water cycle, yet many facets of (de)hydration reactions remain unclear. Here, we study (de)hydration reactions where associated solid density changes are
Externí odkaz:
https://doaj.org/article/9e655da798164b5e9d65e8f21f8a744d
Autor:
Ji-Lei Li, Esther M. Schwarzenbach, Timm John, Jay J. Ague, Fang Huang, Jun Gao, Reiner Klemd, Martin J. Whitehouse, Xin-Shui Wang
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-12 (2020)
Sulfur is one of the key volatiles in Earth’s chemical cycles; however, sulfur speciation, isotopic composition, and flux during the subduction cycle remain unclear. Here, the authors provide direct constraints on subduction zone sulfur recycling f
Externí odkaz:
https://doaj.org/article/e2d7e40af3b24e6397b08fd06750929a
Publikováno v:
Inorganics, Vol 10, Iss 12, p 259 (2022)
We performed density functional theory (DFT) calculations on binary and ternary oxo/fluoro crystals of the geochemical twin pair zirconium and hafnium to evaluate and compare their stabilities. This is the first DFT study on bulk ZrF4 or HfF4, as wel
Externí odkaz:
https://doaj.org/article/05b2a4b4680f408cb41e20e0d3ac6b62
Publikováno v:
Nature Communications, Vol 10, Iss 1, Pp 1-9 (2019)
Fluid liberation and migration from subducted oceanic slabs play a critical role in arc magmatism but the volume and origin of the released fluids is unclear and difficult to trace. Here, the authors use Molybdenum isotope ratios to tackle these prob
Externí odkaz:
https://doaj.org/article/61216e6bffaa49de823ad9fcad86f73b
Autor:
Sascha Zertani, Johannes C. Vrijmoed, Frederik Tilmann, Timm John, Torgeir B. Andersen, Loic Labrousse
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 21, Iss 6, Pp n/a-n/a (2020)
Abstract Seismological studies of large‐scale processes at convergent plate boundaries typically probe lower crustal structures with wavelengths of several kilometers, whereas field‐based studies typically sample the resulting structures at a muc
Externí odkaz:
https://doaj.org/article/0a77cd15c9bb43deb944220d1c0268f3
Publikováno v:
Philosophical Transactions: Mathematical, Physical and Engineering Sciences, 2001 Sep . 359(1786), 1911-1929.
Externí odkaz:
https://www.jstor.org/stable/3066486
Publikováno v:
Geochimica et Cosmochimica Acta. 334:135-154
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::70b5b2c5d8cfe5a3561f851e8222c7f5
https://doi.org/10.1016/j.gca.2022.08.005
https://doi.org/10.1016/j.gca.2022.08.005
Autor:
Henrik H. Svensen, Timm John, Alexander G. Polozov, Sara Callegaro, Morgan T. Jones, Robert J. Newton, Kirsten E. Fristad, Sverre Planke
In the Siberian Traps Large igneous province (LIP), the emplacement of magma in sedimentary strata led to explosive release of volatiles and the formation of large pipe structures with explosion craters. Of the hundreds of pipes present, several stil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e035324be56a91fe0a86d337ab1cb2e5
https://doi.org/10.5194/egusphere-egu23-14142
https://doi.org/10.5194/egusphere-egu23-14142
Autor:
Timm John, Sandra Babinski, Julien Gasc, Jörn Kummerow, Markus Ohl, Oliver Plümper, Alexandre Schubnel
Tectonic (or non-volcanic) tremors have been extensively documented at subduction zones and are considered as the signature of transport processes of dehydration-related fluids in subduction zones, often recorded in close association with geodeticall
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f29a518c939447369bd2695607ab016
https://doi.org/10.5194/egusphere-egu23-11218
https://doi.org/10.5194/egusphere-egu23-11218
Fluid release from hydrated oceanic lithosphere in subduction zones is a key process in the deep earth water cycle. During prograde metamorphism a channelized vein network forms in the dehydrating rock that allows efficient fluid release from the sla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::402b1742c36a65dd48d485bdbb256fdd
https://doi.org/10.5194/egusphere-egu23-14500
https://doi.org/10.5194/egusphere-egu23-14500