Rocks that formed some 3.7 billion years ago in the early Archean have given us the earliest ... in the lonesome wilds of Isua in Greenland. There, a region known as the Supracrustal Belt has ...
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The oldest rocks on EarthThe Isua Greenstone Belt in western Greenland contains some of the oldest rocks on Earth ... indirectly evidence the existence of an Early Archean crustal block with a minimum age of 4 Ga ...
In the Archean, long before rooted land plants ... 13C-depleted carbon microparticles in >3700-Ma sea-floor sedimentary rocks from west Greenland. Science 283, 674–676 (1999).
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