Peridotite mantle xenolith in basalt (near Mount Trumbull, Arizona, USA) : 無料・フリー素材/写真
Peridotite mantle xenolith in basalt (near Mount Trumbull, Arizona, USA) / James St. John
| ライセンス | クリエイティブ・コモンズ 表示 2.1 |
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| 説明 | Peridotite mantle xenolith in basalt lava from Arizona, USA. (public display, Geology Department, Wittenberg University, Springfield, Ohio, USA)The greenish-colored mass is a sample of mantle rock. It's a xenolith nodule in basalt lava that was erupted from a volcano. The rock was plucked from deep wall rocks during the ascent of magma during the Late Pleistocene. The xenolith itself is peridotite, an olivine-rich, ultramafic, intrusive igneous rock. Peridotite has a phaneritic texture (= coarsely-crystalline) and formed by slow cooling. Locality: unrecorded/undisclosed site near Mount Trumbull, Arizona, USA |
| 撮影日 | 2018-03-24 13:11:59 |
| 撮影者 | James St. John |
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