Zobrazeno 1 - 10 of 414 pro vyhledávání: '"Huronian glaciation"'
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Akademický článek
The Keivy Domain of the Kola Granulite–Gneiss Area on the Baltic Shield: Most Ancient Median Massif of the Continental Crust
Autor: Nickolay Sorokhtin, Nikolay Kozlov, Igor Semiletov, Leopold Lobkovsky, Sergey Nikiforov, Dmitry Alekseev, Roman Ananiev
Publikováno v: Geosciences, Vol 13, Iss 5, p 142 (2023)
Studies of lithotectonic formations within the Keivy domain of the NE Baltic Shield have shown that the domain was tectonically overlapped by adjacent microcontinents during regional collision processes in the Late Archean. As a consequence, the cont
Externí odkaz: https://doaj.org/article/1f4035a55f7447cdae5045ac6529bacb
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2
Dynamics of the Great Oxidation Event from a 3D photochemical–climate model
Autor: Franck Selsis, Adam Yassin Jaziri, Benjamin Charnay, Franck Lefèvre, Jérémy Leconte
Publikováno v: Climate of the Past Discussions
Climate of the Past Discussions, European Geosciences Union (EGU), 2022, pp.(Discussions). ⟨10.5194/cp-2021-150⟩
From the Archean toward the Proterozoic, the Earth's atmosphere underwent a major shift from anoxic to oxic conditions, around 2.4 to 2.1 Gyr, known as the Great Oxidation Event (GOE). This rapid transition may be related to an atmospheric instabilit
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::13492eb2d7e329393227bf675b94db89
https://cp.copernicus.org/articles/18/2421/2022/
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3
Akademický článek
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Regional and local controls on Archean rock-hosted cobalt mineralization at the McAra deposit, southern Superior Province, Ontario, Canada
Autor: Michael D. Hendrickson
Publikováno v: Canadian Journal of Earth Sciences. 57:1447-1462
The McAra deposit is in eastern Ontario, Canada, and is hosted in an Archean inlier to the Paleoproterozoic Huronian basin. It is currently estimated to contain ∼2.4 million pounds of cobalt at an average grade of 1.25%. New drill data show the min
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7778ba5a66f75d09a99fae3306b3bd86
https://doi.org/10.1139/cjes-2020-0059
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5
Geochemistry of the Paleoproterozoic Espanola Formation, Bruce Mines—Elliot Lake area, Ontario, Canada: implications for provenance, paleo-weathering, and tectonic setting
Autor: Patricia L. Corcoran, Mansour H. Al-Hashim
Publikováno v: Geosciences Journal. 25:125-144
The Espanola Formation of the Paleoproterozoic Huronian Supergroup is a mixed carbonate-siliciclastic succession that is well exposed in the Bruce Mines-Elliot Lake Area, Ontario, Canada. The siliciclastic portion of the formation is mainly dominated
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::770f33bf1cb13957de946dc2f10f9252
https://doi.org/10.1007/s12303-020-0010-2
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Aspects of the Archean-Proterozoic transition: How the great Huronian Glacial Event was initiated by rift-related uplift and terminated at the rift-drift transition during break-up of Lauroscandia
Autor: Grant M. Young
Publikováno v: Earth-Science Reviews. 190:171-189
The Archean-Proterozoic transition was among the most important in geological history for it includes evidence of establishment of ‘modern-style’ plate tectonics, unprecedented paleoclimatic upheavals, and oxygenation of the atmosphere. The early
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3740b88bef84c567f7e34ba1cfe33df9
https://doi.org/10.1016/j.earscirev.2018.12.013
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Discovery of the Huronian Glaciation Event in China: Evidence from glacigenic diamictites in the Hutuo Group in Wutai Shan
Autor: Yan-Jing Chen, M. Santosh, Qiugen Li, JianRong Li, WeiYu Chen
Publikováno v: Precambrian Research. 320:1-12
Paleoproterozoic glacigenic diamictites have provided key evidence for the Great Oxidation Event (GOE) at ∼2.3 Ga associated with the widespread Huronian Glaciation Event (HGE). Here we report for the first time Paleoproterozoic glacigenic diamicti
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::382dd729c2467b712b733ea353bb9f17
https://doi.org/10.1016/j.precamres.2018.10.009
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Regional gold-enrichment of conglomerates in Paleoproterozoic supergroups formed during the 2.45 Ga rifting of Kenorland
Autor: Wesley E. Whymark, Hartwig E. Frimmel
Publikováno v: Ore Geology Reviews. 101:985-996
We describe the presence of Witwatersrand-type gold mineralization in Paleoproterozoic strata indicating this style of deposit is not confined to the Archean. The discovery of basal and intraformational conglomerate-hosted gold mineralization in the
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f85a9f00dd61d0df5f9182622b4f48ee
https://doi.org/10.1016/j.oregeorev.2017.04.003
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New U-Pb geochronology evidence for 2.3 Ga detrital zircon grains in the youngest Huronian Supergroup formations, Canada
Autor: Carolyn Hill, Patricia L. Corcoran, Donald W. Davis
Publikováno v: Precambrian Research. 314:428-433
Detrital zircon U-Pb ages from one sandstone and one claystone unit in the upper Huronian Supergroup, near Flack Lake, Ontario, Canada, provide new evidence for the maximum depositional age of the two youngest formations and reinterpretation of the d
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d67bc7c40ad7141c7986b58b385f75e7
https://doi.org/10.1016/j.precamres.2018.07.001
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