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See all on WikipediaHuronian Supergroup - Wikipedia
The Huronian Supergroup is a Proterozoic assemblage of geologic groups of the Superior craton of the Canadian Shield in Ontario and Quebec. It extends from west of the city of Sault Ste. Marie in the west to the Ontario-Quebec border to the east and is part of the Southern Geologic Province. See more
The Huronian Supergroup consists of four groups. All of the rocks are low grade metamorphic sedimentary rocks or igneous rocks See more
The bulk of the Huronian Group consists of mostly metamorphosed sandstones and mudstones. Since there are no index fossils, the … See more
Wikipedia text under CC-BY-SA license Huronian glaciation - Wikipedia
The Huronian glaciation (or Makganyene glaciation) was a period where at least three ice ages occurred during the deposition of the Huronian Supergroup. Deposition of this largely sedimentary succession extended from approximately 2.5 to 2.2 billion years ago (Gya), during the Siderian and Rhyacian periods of the Paleoproterozoic era. Evidence for glaciation is mainly based on the recognition of diamictite, that is interpreted to be of glacial origin. Deposition of the Huronian suc…
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Huronian Glaciation - SpringerLink
Dec 28, 2021 · The Huronian Supergroup contains three glacial units (Fig. 3), whereas other successions, except for the Snowy Pass Supergroup and Snowy Pass Group in Wyoming, …
Huronian Glaciation - SpringerLink
Dec 13, 2020 · The Huronian glaciation is the oldest series of protracted climatic refrigeration events that extensively affected Earth. It occurred between 2.45 and 2.22 Ga in association …
Huronian Supergroup. Neither pronounced MIF-S signals nor a MIF–MDF transition are seen in this study. Four scenarios are proposed for the genesis of small non-zero Δ33S and Δ36S …
Aspects of the Archean-Proterozoic transition: How the great …
Mar 1, 2019 · Similar highly altered zones are also present in the Huronian Supergroup (Young. 1973; Ojakangas et al., 2001, p. 332) but, rather than being directly developed on glacial …
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Early Proterozoic climates and plate motions inferred from major ...
Oct 21, 1982 · The early Proterozoic Huronian Supergroup of the north shore of Lake Huron (Fig. 1) is a thick (up to 12,000 m) succession of sedimentary and volcanic rocks deposited between …
Osmium evidence for synchronicity between a rise in …
Oct 11, 2011 · The Huronian Supergroup is a sequence of early Palaeoproterozoic sediments and minor volcanic rocks. The studied samples were collected from the Bruce and Espanola formations of the 2.45–2.22...
NASA Astrobiology Institute
Jun 13, 2018 · Members of the NASA Astrobiology Institute University of Wisconsin Team have reported the first in situ analysis of all four S isotopes in metasediments of the Paleoproterozoic Huronian Supergroup and examined …
GSA Today - Evolution of Earth's climatic system: Evidence from …
The Paleoproterozoic Huronian Supergroup (2. 45–2.21 Ga) includes three glacial formations (Young, 1970; Melezhik et al., 2013) separated by units formed under milder climatic …
Origins of Outliers of the Huronian Supergroup within the Sudbury ...
Jan 1, 2004 · The Huronian Supergroup (∼2.4–2.2 Ga) comprises up to 12 km of mainly sedimentary supracrustal rocks. The oldest Huronian unit, the Livingstone Creek Formation, is …
Earth’s first snowball event: Evidence from the early …
Oct 1, 2021 · The Bruce glacial event represents the second of three glacial cycles preserved in the Paleoproterozoic Huronian Supergroup, a ∼ 12 km thick sequence of mostly sedimentary rocks that lies along the southern margin of Superior Province.
Simplified stratigraphical chart of Huronian Supergroup (modified …
Download scientific diagram | Simplified stratigraphical chart of Huronian Supergroup (modified after Al-Hashim & Corcoran, 2021). from publication: Field evidence suggests that the ...
An Evolving Atmosphere - AMNH
Clues to the conditions on the early Earth are found in rocks like the Huronian Supergroup, a set of sedimentary rock formations, up to 12 kilometers thick, laid down between 2.5 and 2.2 billion …
Huronian Glaciation - SpringerLink
The name is derived from the Huronian Supergroup, a glacio-marine to fluvio-deltaic sedimentary sequence of dolostone, siltstone, argillites, diamictites, and sandstones exposed …
Searching for the Great Oxidation Event in North America
May 1, 2018 · Evidence for the first appearance of the GOE is present in the Huronian Supergroup, an up to 12 km thick succession of sedimentary and volcanic rocks ( Fig. 1) deposited on the margin of...
The ice ages were followed by a protracted time interval with greenhouse (warm and humid) conditions. The name is derived from the Huronian Supergroup exposed on the north shore of …
8 Glacial and associated rocks from the Huronian Supergroup in …
The Huronian Supergroup is comprised of five groups: Elliot Lake, Hough Lake, Quirke Lake, Cobalt, and Flack Lake, in ascending stratigraphic order (Fig. 2).
Underground in Nuremberg: historical rock-cut-cellars …
Underground in Nuremberg. Underground walkways and tunnels really fascinate me. They often tell so many stories about life. That’s why I knew I had to go on a tour called „Historische …
Middle Franconia - Wikipedia
Middle Franconia (German: Mittelfranken, pronounced [ˈmɪtl̩ˌfʁaŋkŋ̍] ⓘ) is one of the three administrative regions of Franconia, Germany, [3] in the west of Bavaria bordering the state of Baden-Württemberg. The administrative seat is Ansbach; …
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