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- Als Vishnu Basement Rocks wird das paläoproterozoische polymetamorphe kristalline Grundgebirge bezeichnet, das im US-amerikanischen Bundesstaat Arizona gelegenen Grand Canyon ansteht. (de)
- The Vishnu Basement Rocks is the name recommended for all Early Proterozoic crystalline rocks (metamorphic and igneous) exposed in the Grand Canyon region. They form the crystalline basement rocks that underlie the Bass Limestone of the Unkar Group of the Grand Canyon Supergroup and the Tapeats Sandstone of the Tonto Group. These basement rocks have also been called either the Vishnu Complex or Vishnu Metamorphic Complex. These Early Proterozoic crystalline rocks consist of metamorphic rocks that are collectively known as the Granite Gorge Metamorphic Suite; sections of the Vishnu Basement Rocks contain Early Paleoproterozoic granite, granitic pegmatite, aplite, and granodiorite that have intruded these metamorphic rocks, and also, intrusive Early Paleoproterozoic ultramafic rocks. The term Zoroaster Plutonic Complex is used for all Paleoproterozoic granitic and grandioritic plutonic rocks in the Grand Canyon. Specific names have been assigned to individual plutons and dike swarms because the plutons and swarms differ greatly in their age, origin, and tectonic significance. The oldest of these plutonic complexes, Elves Chasm Gneiss, likely represent a small fragment of basement upon which the metavolcanic rocks that comprise the Granite Gorge Metamorphic Suite accumulated. The remainder of the Early Paleoproterozoic granites, granitic pegmatites, aplites, and granodiorites – are parts of either younger plutons or dike swarms, that have intruded the Granite Gorge Metamorphic Suite, either contemporaneously with, or after they were metamorphosed. It was named after a natural rock structure in the Colorado River valley which was named "Temple of Vishnu" from its appearance. (en)
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- 19625 (xsd:nonNegativeInteger)
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- ~ (en)
- Early Paleoproterozoic (en)
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- Vishnu Basement Rocks (en)
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- "Vishnu's Temple" butte (en)
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- granodiorite, tonalite, pegmatite, and ultramafic rocks (en)
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- Granite Gorge Metamorphic Suite (en)
- Zoroaster Plutonic Complex (en)
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- Unkar Group and, as part of the Great Unconformity, the Tapeats Sandstone (en)
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- Als Vishnu Basement Rocks wird das paläoproterozoische polymetamorphe kristalline Grundgebirge bezeichnet, das im US-amerikanischen Bundesstaat Arizona gelegenen Grand Canyon ansteht. (de)
- The Vishnu Basement Rocks is the name recommended for all Early Proterozoic crystalline rocks (metamorphic and igneous) exposed in the Grand Canyon region. They form the crystalline basement rocks that underlie the Bass Limestone of the Unkar Group of the Grand Canyon Supergroup and the Tapeats Sandstone of the Tonto Group. These basement rocks have also been called either the Vishnu Complex or Vishnu Metamorphic Complex. These Early Proterozoic crystalline rocks consist of metamorphic rocks that are collectively known as the Granite Gorge Metamorphic Suite; sections of the Vishnu Basement Rocks contain Early Paleoproterozoic granite, granitic pegmatite, aplite, and granodiorite that have intruded these metamorphic rocks, and also, intrusive Early Paleoproterozoic ultramafic rocks. (en)
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- Vishnu Basement Rocks (de)
- Vishnu Basement Rocks (en)
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