Zobrazeno 1 - 10
of 123
pro vyhledávání: '"Keith Dewing"'
Autor:
Jennifer M. Galloway, Thomas Hadlari, Keith Dewing, Terence Poulton, Stephen E. Grasby, Lutz Reinhardt, Mikhail Rogov, Jack Longman, Madeleine Vickers
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 25, Iss 10, Pp n/a-n/a (2024)
Abstract A causal mechanism for the Volgian Isotopic Carbon Excursion (VOICE) remains enigmatic. Elemental geochemical profiles of the Deer Bay Formation, Sverdrup Basin, Arctic Canada that record the VOICE and contemporaneous strata are herein exami
Externí odkaz:
https://doaj.org/article/2f047cb67eac4047b952df3e20fc6cb0
Publikováno v:
Geochimica et Cosmochimica Acta. 342:137-155
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4c24d7eb7a14359662640740af53b6d
https://doi.org/10.1016/j.gca.2022.12.013
https://doi.org/10.1016/j.gca.2022.12.013
Publikováno v:
Geological Society, London, Special Publications. 533:65-92
Ordovician rocks extensively border and cover Laurentia or the North American Craton in Canada. These rocks represent diverse and significant successions spread across a variety of depositional and palaeogeographic settings in the Canadian Arctic Isl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2258d3f1f8590d843b707eb5eab53bf
https://doi.org/10.1144/sp533-2022-151
https://doi.org/10.1144/sp533-2022-151
Autor:
Jennifer M. Galloway, Stephen E. Grasby, Feiyue Wang, Thomas Hadlari, Keith Dewing, Stéphane Bodin, Hamed Sanei
Publikováno v:
Galloway, J M, Grasby, S E, Wang, F, Hadlari, T, Dewing, K, Bodin, S & Sanei, H 2023, ' A mercury and trace element geochemical record across Oceanic Anoxic Event 1b in Arctic Canada ', Palaeogeography, Palaeoclimatology, Palaeoecology, vol. 617, 111490 . https://doi.org/10.1016/j.palaeo.2023.111490
A geochemical record from a continuous Arctic marine succession of the upper Aptian to upper Albian Christopher Formation exposed at Glacier Fiord on Axel Heiberg Island, Canada, reveals the characteristic carbon isotopic excursions associated with t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::128175d5e67535bb95149a5f6ba07139
https://pure.au.dk/portal/da/publications/a-mercury-and-trace-element-geochemical-record-across-oceanic-anoxic-event-1b-in-arctic-canada(53aaa1d6-45c3-4e49-969b-a4a3e7afef32).html
https://pure.au.dk/portal/da/publications/a-mercury-and-trace-element-geochemical-record-across-oceanic-anoxic-event-1b-in-arctic-canada(53aaa1d6-45c3-4e49-969b-a4a3e7afef32).html
Publikováno v:
Geological Society, London, Memoirs. 57
The Sverdrup Basin Composite Tectono-Sedimentary Element (CTSE) covers 210 000 km 2 in the Canadian Arctic Archipelago. The CTSE was initiated in the Early Carboniferous by rifting of highly deformed Early Paleozoic strata and contains a maximum of 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f38236024a607ff356c95d228a7f0250
https://doi.org/10.1144/m57-2017-11
https://doi.org/10.1144/m57-2017-11
Autor:
Keith Dewing, Thomas Hadlari
Publikováno v:
Geological Society, London, Memoirs. 57
The Neoproterozoic–Devonian strata of the Canadian Arctic Islands record three Tectono-Sedimentary Elements (TSEs): (i) the Neoproterozoic Synrift TSE; (ii) the Neoproterozoic–Late Devonian Franklinian Margin TSE composed of Cambrian–Ordovician
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e7dbc63dbb8ac272b5c06950c8847931
https://doi.org/10.1144/m57-2016-4
https://doi.org/10.1144/m57-2016-4
Publikováno v:
Geochimica et Cosmochimica Acta. 308:136-156
Hopanoid molecules are ubiquitous in sedimentary rocks and make up a significant proportion of sedimentary organic matter, oils, and bitumen. Due to their relatively stable chemical structure, they are generally well preserved in the rock record, mak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b1a3400c983f12d8dd445f522df8332
https://doi.org/10.1016/j.gca.2021.06.005
https://doi.org/10.1016/j.gca.2021.06.005
Autor:
Frances M Deegan, Jean H Bédard, Stephen E Grasby, Keith Dewing, Harri Geiger, Valeria Misiti, Manfredo Capriolo, Sara Callegaro, Henrik H Svensen, Chris Yakymchuk, László E Aradi, Carmela Freda, Valentin R Troll
Publikováno v:
Journal of Petrology. 63
Large igneous provinces (LIPs) whose magma plumbing systems intersect sedimentary basins are linked to upheavals of Earth’s carbon and sulfur cycles and thus climate and life history. However, the underlying mechanistic links between these phenomen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c9cf350c9763fd20514d9e62e7f26b2
https://doi.org/10.1093/petrology/egac094
https://doi.org/10.1093/petrology/egac094
Autor:
Dane P. Synnott, Keith Dewing, Omid Haeri Ardakani, Lorenz Schwark, Emma L. Percy, Per Kent Pedersen
Publikováno v:
Marine and Petroleum Geology. 154:106332
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1c19917459f57bb85708e53fcb85a49
https://doi.org/10.1016/j.marpetgeo.2023.106332
https://doi.org/10.1016/j.marpetgeo.2023.106332
Publikováno v:
Facies. 68
The Devonian to Carboniferous (DC) transition coincided with a green-to-ice house climatic shift, anoxia, disappearance of lower latitude carbonate banks, and turnover from warm-to-cool water carbonate factories. In western Laurentia, the switch to c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25e8b34293d98964529ffe684a3d90e8
https://doi.org/10.1007/s10347-022-00653-4
https://doi.org/10.1007/s10347-022-00653-4