Vulcanic rock ore on white background
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  • Photo title: Vulcanic rock ore on white background
  • Author: Mohaeljawphoto
  • Cover photo description:
  • Volcanic rock often shortened to volcanics in scientific contexts is a rock formed from magma erupted from a volcano. In other words, it differs from other igneous rock by being of volcanic origin. Like all rock types, the concept of volcanic rock is artificial, and in nature volcanic rocks grade into hypabyssal and metamorphic rocks and constitute an important element of some sediments and sedimentary rocks. For these reasons, in geology, volcanics and shallow hypabyssal rocks are not always treated as distinct. In the context of Precambrian shield geology, the term `volcanic` is often applied to what are strictly metavolcanic rocks.
  • Image ID:110824219
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