Archean


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Related to Archean: archaean, Proterozoic
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Synonyms for Archean

of or relating to the earliest known rocks formed during the Precambrian Eon

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References in periodicals archive ?
In addition to initial capital, Archean is providing operational support to Petrichor.
Because mantle temperatures were higher during the Archean eon, Earth's primary crust that formed at the time must have been very thick and also very rich in magnesium.
Study author, Dr Ray Burgess, from Manchester's School of Earth, Atmospheric and Environmental Sciences, said that during the Archean the solar energy received at the surface of the Earth was about 20 to 25 percent lower than present.
Kent Exploration (TorontoVE:KEX), a mineral exploration company, has received approval of TSX Venture Exchange for listing of Archean Star Resources as a Tier 2 mining issuer.
The Archean Group has multi-national operations in the field of salt, mining, shipping, construction materials and industrial chemicals covering three continents.
Komattites are rare ultramafic volcanic and subvolcanic rocks that occur, predominantly, in Archean and Paleoproterozoic greenstone belts.
In the vicinity of Isua, located 160 km NW of outer Godthabsfjord, a dyke swarm that has been correlated with the Ameralik swarm was largely unaffected by late Archean events.
Epigenetic gold deposits are one of the most characteristic types of mineralization in Archean greenstone belts and major mining districts are situated in most cratonic areas.
Clean Coal is pleased to announce this latest payment from our joint venture with Archean for the construction of our pilot plant," stated Robin Eves, Director, President and CEO of Clean Coal Technologies.
Geologically the Cameron Cobalt property is located within the Cobalt Embayment in the Southern Province of the Canadian Shield where Huronian Supergroup sedimentary rocks lay unconformably overly Archean basement rocks.
During the Archean the solar energy received at the surface of the Earth was about 20 to 25 % lower than present," said study author, Dr Ray Burgess, from Manchester's School of Earth, Atmospheric and Environmental Sciences.
The authors find that some of the other potential solutions could have produced some warming during the Archean, but none individually produced enough warming to avoid widespread glaciation.
Archean Group is a diversified conglomerate with strategic business interests, investments and over three decades of operational experience in sectors such as mining and minerals, industrial chemicals and fertilisers, shipping & shipbuilding, building materials, oil and gas services and energy and infrastructure.
Scientists have spotted this signature in rocks from the Archean eon, which stretched from about 3.