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greenstone belts
(redirected from Greenstone belt)

    Also found in: Wikipedia 0.01 sec.
greenstone belts [′grēn‚stōn ‚belts]
(geology)
Oceanic and island arclike sequences that are similar to, and run to the south and north of, the Swaziland System.
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The specimens were found in an area known as the Nuvvuagittuq greenstone belt, along the eastern shore of Hudson Bay in northern Quebec, a region recognized in 2001 as being a potential site for finding ancient rocks.
Canadian scientists discover oldest rocks on Earth by AFP / AFP American Edition
The specimens were found in an area known as the Nuvvuagittuq greenstone belt, along the eastern shore of Hudson Bay in northern Quebec, a region recognized in 2001 as being a potential site for finding ancient rocks.
Canadian scientists discover oldest rocks on Earth by AFP / AFP Global Edition
[FIGURE 1 OMITTED] Komatiites were first identified by Viljoen and Viljoen (1969) in the Archean greenstone belt in the Barberton Mountainland of South Africa as a distinctive and "new" class of magnesium-rich (20-30 wt% MgO) volcanic rocks.
Igneous rock associations 10. Komatiites by Dostal, Jaroslav / Geoscience Canada
 
 
 
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