crustal rock वाक्य
उदाहरण वाक्य
मोबाइल
- Geothermal heating peaks in crust about to be rifted; and since warmer rocks are less dense, the crustal rocks rise up relative to their surroundings.
- And the sudden downward dive of such massive quantities of crustal rock would be more than enough to cause the globe to tilt dramatically, Sager said.
- White wrote in a commentary in Nature, " that this staurolite crystal formed within metamorphosed crustal rocks which were subsequently carried into the mantle through subduction ."
- The role of water and other volatiles in the melting of existing crustal rock in the wedge above a subduction zone is a most important part of the cycle.
- The Atlantic is entirely on " continental plates " ( North American, South American, Eurasian, and African ), despite clearly being an ocean, and clearly lying over oceanic crustal rocks.
- The intercrater plains unit is inferred to consist of crater and basin ejecta deposits, volcanic flows, and possible pyroclastic deposits that have partly resurfaced and smoothed older, highly cratered, crustal rocks.
- He is also interested in the transport of fluid components in mantle and crustal rocks on the microscopic and macroscopic scales, and on the effects of such components on mechanical properties.
- The petrogenesis of Lastarria rocks, like those of other volcanoes in the Central Volcanic Zone, involves the prolonged interaction with crustal rocks in magma chambers as well as the fractionation of certain minerals.
- UHP xenoliths of crustal affinity provide information about processes active deep in Earth, but also information about what kinds of crustal rocks reach great depth in Earth and how profound those depths are.
- The underplated magma will add a lot of heat to the base of the crust, thereby inducing crustal melting and assimilation of lower-crustal rocks, creating an area with intense interaction of the mantle magma and crustal magma.
- The magma forming stratovolcanoes rises when water trapped both in hydrated minerals and in the porous basalt rock of the upper oceanic crust is released into crust, incorporating silica-rich crustal rock, leading to a final intermediate composition.
- Some 3.5 million to 4 million years ago, masses of hard, heavy, garnet-rich crustal rock called eclogite-- which had formed some 80 million years earlier-- broke away from the crust and began to sink into the mantle.
- Some 3 . 5 million to 4 million years ago, masses of hard, heavy, garnet-rich crustal rock called eclogite-- which had formed some 80 million years earlier-- broke away from the crust and began to sink into the mantle.
- Approximating it at as roughly 5 reservoirs : land-based biosphere, atmosphere, oceans, crustal rocks and fossil fuels; I have been trying to get some citable numbers for the annual pairwise exchanges of carbon between each of these in the modern era.
- A hot, thin plate is a weak plate, one that cannot support the weight of all the mountains on top of it : As a result it bends downward, and in so doing it displaces heavy mantle rock with light crustal rock.
- This huge gouge in the crustal rock-- caused as the newer Pacific plate spreads across the ocean floor and grinds up against the older and tougher continental plate-- runs the length of California's coast, turning inland to pass 25 miles northeast of Los Angeles.
- As part of this work, he introduced normal heights, which can be calculated from geopotential numbers ( obtained from precise levelling ) without needing the uncertain value of gravity along the plumbline of a point, i . e ., inside the continental crustal rock under the point.
- The pre-4.50 b . y . high upper-mantle rocks, the dominant rocks now preserved beneath Archean cratons, are not of partially-fractionated mantle as predicted by conventional interpretations, but instead are extremely refractory differentiates, depleted of most silicate materials that could have contributed partial melts of either continental or oceanic crustal rocks.
- It is thought that the total amount of iridium in the planet Earth is much higher than that observed in crustal rocks, but as with other platinum-group metals, the high density and tendency of iridium to bond with iron caused most iridium to descend below the crust when the planet was young and still molten.
- The oldest continental crustal rocks on Earth have ages in the range from about 3.7 to 4.28 billion years and have been found in the Narryer Gneiss Terrane in Western Australia, in the Acasta Gneiss in the Northwest Territories on the Canadian Shield, and on other cratonic regions such as those on the Fennoscandian Shield.
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