eclogite sentence in Hindi
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- Eclogite diamonds are also typically higher in nitrogen, and will have a different suite of mineral inclusions than harzburgitic diamonds.
- In metamorphic rocks, coesite was initially described in eclogite xenoliths from the crustal rocks are carried to depths of or more.
- Serpentinite is unstable at mantle temperatures and is readily dehydrated to granulite, amphibolite, talc & ndash; schist and even eclogite.
- Melting of an amphibolite quartz eclogite has been suggested as a probable origin for these high-Al 2 O 3 felsic magmas.
- Eclogite xenoliths found within the crust in the region support the metamorphic phase change associated with the density inversion in the lower crust.
- Another important water producing reaction that occurs during the eclogite facies is the dehydration of the hydrous phyllosilicate phlogopite by the reaction below.
- Here is Harlow's favorite, the mottled lump of eclogite, about the size of a sweet potato, looking very undistinguished.
- Eclogite-derived melts may be common in the mantle, and contribute to volcanic regions where unusually large volumes of magma are erupted.
- All are dominated by quartzofeldspathic gneiss with a few percent mafic rock ( eclogite ) or ultramafic rock ( garnet-bearing peridotite ).
- Over the years, diamonds have yielded blemishes of eclogite and kyanite, metamorphic rocks thought to have been formed at great depths and heats.
- However, the latest belief is that dehydration that occurs at the blueschist-eclogite transition affects most subducted slabs, rather than partial melting.
- High-ultrahigh pressure metamorphic path through the zeolite, prehnite-pumpellyite, blueschist, and eclogite facies stability zones of subducted oceanic crust.
- But those found in eclogite appear to be made of living things whose carbon atoms were recycled over the ages through the earth's interior.
- Eclogite is associated with peridotite in some xenolith occurrences; it also occurs with peridotite in rocks metamorphosed at high pressures during processes related to subduction.
- Isotopic studies reveal that many eclogite inclusions are samples of ancient oceanic crust subducted billions of years ago to depths exceeding into the deep kimberlite diamond areas.
- It is a major mineral component of eclogite along with pyrope garnet and also occurs in blueschist facies and UHP ( ultrahigh-pressure ) metamorphic rocks.
- To get a basalt from melting an eclogite ( i . e .; a rock with basalt composition ) it has to undergo 100 % partial melting.
- Unless the eclogite is created in very young oceanic crust, it is cool at the time of initial subduction and so is carried down into the mantle.
- Research at Argyle diamond have shown that most stones are of E-type; they originate from eclogite source rocks and were formed under high temperature ~.
- In addition, the eclogite residues, formed by the partial melting of the oceanic crust, subsequently became a part of the sub-continental lithospheric mantle.
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