brecciation
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brecciation — noun see brecciate … New Collegiate Dictionary
brecciation — See brecciate. * * * … Universalium
brecciation — brec·ci·a·tion … English syllables
brecciation — ˌbrechēˈāshən, esh noun ( s) : formation of a breccia … Useful english dictionary
brecciate — brecciation /brech ee ay sheuhn, bresh /, n. /brech ee ayt , bresh /, v.t., brecciated, brecciating. Petrol. to form as breccia. [1765 75; BRECCI(A) + ATE1] * * * … Universalium
Pilbara craton — The Pilbara craton (the Pilbara province in northwest Western Australia), along with the Kaapvaal craton (the Kaapvaal province of South Africa) are the only remaining areas of pristine Archaean 3.6 2.7 Ga crust on Earth. Similarities of their… … Wikipedia
brecciate — transitive verb ( ated; ating) Date: 1772 1. to form (rock) into breccia 2. to break (rock) into fragments • brecciation noun … New Collegiate Dictionary
Metamorphism — For other uses, see Metamorphism (disambiguation). Schematic representation of a metamorphic reaction. Abbreviations of minerals: act = actinolite; chl = chlorite; ep = epidote; gt = garnet; hbl = hornblende; plag = plagioclase. Two minerals… … Wikipedia
Chondrite — Not to be confused with Chondrodite. A specimen of the NWA 869 chondrite (type L4 6), showing chondrules and metal flakes Chondrites are stony meteorites that have not been modified due to melting or differentiation of the parent body. They… … Wikipedia
Weaubleau-Osceola structure — The Weaubleau Osceola structure is thought to be a meteorite impact site in western Missouri near the towns of Osceola and Weaubleau. It is believed to have been caused by a 1200 ft (366 m) meteoroid between 310 and 340 million years ago during… … Wikipedia
