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Striations carved into a bedrock by ice erosion as a glacier receded, Isua Greenstone Belt, Greenland
Striations carved into a bedrock by ice erosion as a glacier receded, Isua Greenstone Belt, Greenland

size: 750560
sha1: 98178af5820d01539ea8610b6db3387de7640e80
sha256: 822e81bd5224dc5bd45cb57e42fc50f1422cb6d40bbdd5e374ae92c0aac7c144


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size: 502943
sha1: 90c61bb187348092f46ea6ff03b43be9ed8bc3a2
sha256: 0f23713f165f286cc6de9c7303e37b93e6a6f52a6384b289540013bc162536b0

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