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    • Rocks

      There are three major types of rocks:

      1. Igneous

      2. Sedimentary

      3. Metamorphic

      Igneous

      1. basalt (玄武岩)

        1. mid-ocean ridge basalt (MORB)

        2. oceanic island basalt (OIB)

      2. peridotite (橄榄岩)

      3. harzburgite (斜方辉橄岩)

      4. gabbros (辉长岩)

      5. eclogite (榴辉岩)

      Sedimentary

      Metamorphic

      Pyrolite (地幔岩)

      A theoretical rock considered to be the best approximation of the composition of Earth’s upper mantle. It is constructed from basalts and peridotites.

      Others

      1. meteorite: 陨石

      2. chondrite: 球粒陨石

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