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Volcanic Craters

Volcanic Craters

Volcanic Craters

Volcanic Craters

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In the southern hemisphere there are impact craters , there are volcanic craters .

南半球有著名的撞击坑，还有火山坑。

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Preliminary Determination on the Volcanic Craters of Basaltic Outcropped Areas in Western Guizhou by Gravitational-Magnetic Data

利用重磁资料对贵州西部玄武岩出露区火山口的初步圈定

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