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Diamond Craters : ウィキペディア英語版 | Diamond Craters
Diamond Craters is a volcanic field〔〔 or small shield volcano〔 〕 in southeastern Oregon, about southeast of the town of Burns. It consists of a area of basaltic lava flows, cinder cones, and maars.〔 The volcanoes are less than 60,000 years old, and some craters may be as recent as 6,000 years based on the sedimentation history in the lake-filled Malheur Maar.〔 Diamond Craters and the nearby Diamond post office were named after the Diamond Ranch, established in the area by the pioneer Mace McCoy and his partner Albert Hugh Robie. The ranch used a diamond-shaped brand, hence the name.〔 〕 ==Notable Vents==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Diamond Craters」の詳細全文を読む
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