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coesitePPL.jpg (467×310) evidence for ultra  deep rocks at earth's surface km deep

coesitePPL.jpg (467×310) evidence for ultra deep rocks at earth's surface km deep

Figure 3: Upper panel shows a simplified version of modern plate tectonics, driven by the edgewise sinking of strong, dense lithosphere in subduction zones. Lower panel shows a cartoon of how Earth’s tectonic regime might have been before plate tectonics began. In a hotter Earth, thin, weak lithosphere sank vertically, similar to modern scenarios of delamination or “drip tectonics”.

Figure 3: Upper panel shows a simplified version of modern plate tectonics, driven by the edgewise sinking of strong, dense lithosphere in subduction zones. Lower panel shows a cartoon of how Earth’s tectonic regime might have been before plate tectonics began. In a hotter Earth, thin, weak lithosphere sank vertically, similar to modern scenarios of delamination or “drip tectonics”.

The assemblage of rocks in the Entrelor area is interpreted as a metamorphic mixture, consisting of eclogites rocks embedded in a blueschist...

The assemblage of rocks in the Entrelor area is interpreted as a metamorphic mixture, consisting of eclogites rocks embedded in a blueschist...

The PLATES Project, University of Texas Institute for Geophysics - a global plate tectonics research project

The PLATES Project, University of Texas Institute for Geophysics - a global plate tectonics research project

Large amounts of volcanic rock erupted across Ethiopia and Yemen about 30 million years ago. These form the Afar Large Igneous Province and ...

Large amounts of volcanic rock erupted across Ethiopia and Yemen about 30 million years ago. These form the Afar Large Igneous Province and ...

Figure 12: New metamorphic map of the Western Alps (after Oberhänsli et al., 2004). The contact between rocks buried at eclogite facies cond...

Figure 12: New metamorphic map of the Western Alps (after Oberhänsli et al., 2004). The contact between rocks buried at eclogite facies cond...

This image presents satellite altimetry data of the western Pacific from the equator to Japan. Submarine trenches are indicated with white text over magenta; volcanic arcs are indicated by italicized text. In the western Pacific, the volcanic arcs (island and submarine) are west of the trenches, due to the western migration and subduction of the Pacific plate under the Philippine plate. Volcanic arcs form when the subducting plate melts at depth and magma (fluid that cools to form igneous…

This image presents satellite altimetry data of the western Pacific from the equator to Japan. Submarine trenches are indicated with white text over magenta; volcanic arcs are indicated by italicized text. In the western Pacific, the volcanic arcs (island and submarine) are west of the trenches, due to the western migration and subduction of the Pacific plate under the Philippine plate. Volcanic arcs form when the subducting plate melts at depth and magma (fluid that cools to form igneous…

Bare Mountain, Nye County. Late Precambrian to late Paleozoic sedimentary rocks have been deformed by intense folding in the late Paleozoic or Mesozoic, and then intense thrust and faulting in the Mesozoic, Tertiary, and Holocene. Photographer: Kyle House 2013 Calendar Photo Tour - NBMG - Picasa Web Albums

Bare Mountain, Nye County. Late Precambrian to late Paleozoic sedimentary rocks have been deformed by intense folding in the late Paleozoic or Mesozoic, and then intense thrust and faulting in the Mesozoic, Tertiary, and Holocene. Photographer: Kyle House 2013 Calendar Photo Tour - NBMG - Picasa Web Albums

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