Eclogite ( /ˈɛklədʒaɪt/) is a metamorphic rock containing garnet (almandine-pyrope) hosted in a matrix of sodium-rich pyroxene (omphacite). Accessory minerals...
17 KB (1,745 words) - 04:43, 9 September 2024
metamorphosed to the blueschist facies and then the eclogite facies. Metamorphism to the eclogite facies releases a great deal of water vapor from the...
37 KB (4,414 words) - 16:57, 14 November 2024
green or nearly colorless variety of clinopyroxene. It normally appears in eclogite, which is the high-pressure metamorphic rock of basalt. Omphacite is the...
13 KB (1,210 words) - 22:40, 3 January 2024
Metamorphic facies (section Eclogite facies)
aragonite The eclogite facies is the facies at the highest pressure and high temperature. It is named for the metabasic rock eclogite. The eclogite facies has...
13 KB (1,402 words) - 19:59, 8 February 2024
Subduction zone metamorphism (section Eclogite facies)
metamorphic path through the zeolite, prehnite-pumpellyite, blueschist, and eclogite facies stability zones of subducted oceanic crust. Zeolite and prehnite-pumpellyite...
19 KB (2,315 words) - 22:30, 2 March 2024
is the tectonic process in which the high-pressure, metamorphic facies, eclogite (a very dense rock), is formed. This leads to an increase in the density...
13 KB (1,467 words) - 07:08, 28 October 2022
abundance of old granites originating mostly after 2.6 Ga. The occurrence of eclogite (a type of metamorphic rock created by high pressure, > 1 GPa), is explained...
23 KB (2,385 words) - 16:54, 4 November 2024
of arc volcanism. They are typified by the occurrence of blueschist to eclogite facies metamorphic zones, indicating high-P/low-T metamorphism at low thermal...
38 KB (4,243 words) - 21:59, 13 August 2024
as terranes of lithology in faulted contact with greenschist or rarely eclogite facies rocks. Blueschist, as a rock type, is defined by the presence of...
8 KB (818 words) - 01:11, 4 January 2024
dominant types depending on the mantle parental rocks of the host diamond: eclogite (E-type) and peridotite (P-type). These are the two main parental rocks...
23 KB (2,184 words) - 07:56, 15 April 2024