Archean in a sentence
1) It consists mainly of Archean rock formations.
2) The Australians are leaders in Archean geology .
3) They 're used to Archean terrain and harsh climate conditions.
Archean example sentences4) It contains a late Archean granulite basement.
5) They originated in the Archean , and thrived.
6) The Archean Eon lasted from until approximately .
7) Atmospheric sulfur in Archean komatiite-hosted nickel deposits.
8) Two Archean formations comprise the bedrock.
9) By the beginning of the Archean , the Earth had cooled significantly.
10) They reach many kilometers in diameter and date back to the Archean eon.
11) The Marquette Range Supergroup also overlies an Archean basement.
12) We like the Archean terrain in eastern Australia and the western Australia goldfields .
13) The Archean age greenstone belts throughout Canada are important for estimating Canada's mineral potential.
14) The image below shows the exceptional folding exposed in Archean age gneiss in Southeast Greenland.
15) Early Archean rocks generally form elongate, domal or circular bodies that are several kilometers thick.
example sentences with Archean16) For this reason, greenstones are sometimes seen as evidence for subduction during the Archean .
17) The deposition of sedimentary strata on top of the Archean basement formed the Animikie Group.
18) Archean life would have very short food chains, but contained a great diversity of chemical pathways.
19) We reconstructed potential scenarios for oceans of the prebiotic Archean based on the composition of early sediments.
20) The Archean rocks members of Belo Horizonte complex and supracrustal sequences of the Paleoproterozoic is predominant.
21) These pieces of late Hadean and early Archean crust form the cores around which today's continents grew.
22) The Huronian Supergroup on the north shore of Lake Huron in Ontario overlies an Archean basement.
23) Ancient continental crust, especially from the Archean Eon, tends to be very thick and mechanically stable.
24) These Late Archean rocks form a roughly north-south belt lying south of Marquette extending to the Michigan-Wisconsin border.
25) It is the earliest datable orogeny in North America and brought the Archean Eon to a close.
26) Together the ranges make up a folded block structure, which first formed during the Archean and Proterozoic.
27) Rocks comprising the Slave province represent a high grade of metamorphism, intrusion and basement remobilization typical of Archean terranes.
28) Most present life forms could not have survived in the Archean atmosphere, which lacked oxygen and an ozone layer.
How to use Archean in a sentence29) Additionally, cyanobacteria are aerobic, and thus unlikely to have done well in the anaerobic conditions of the Archean .
30) Palaeoclimate, Palaeobiology, Paleoenvironments reconstructs the past from isotopic and fossil evidence from the Quaternary to the Archean .
31) This volcanism ceased 1850 million years ago when a fragment of Archean crust arrived from the South at the subduction zone.
32) It is believed that during the Archean euxinia was absent, because of low availability of sulfate on the anoxic Earth.
33) It is likely that during the Hadean and Archean , subduction zones were more common, and therefore tectonic plates were smaller.
34) The Noachian Period is roughly equivalent to the Earth's Hadean and early Archean eons when the first life forms likely arose.
35) Collision of this Archean crust in the south with the Superior craton in the North caused a period of intense crustal shortening.
36) Suggests atmosphere of about 1% of atmosphere was oxygen at end of Archean , rising to 10% (or half of modern level) by end of Proterozoic.
37) Hadean, Black Mica Archean , Proterozoic, and Phanerozoic eons are the ones in chronological others listen with complete attention and without interrupting.
38) Komatiite, an ultramafic extrusive rock, was erupted commonly during roughly the first half of Earth's history, in the Archean and early Proterozoic eons.
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