Breccia - Wikipedia
网页Unusual breccia cemented by azurite and malachite, Morenci Mine, Arizona. Breccia (/ ˈbrɛtʃiə, ˈbrɛʃ -/) is a rock composed of large angular broken fragments of minerals or rocks cemented together by a fine-grained matrix. The word has its origins in the Italian language, in which it means "rubble". [1]
Breccia: Sedimentary Rock - Pictures, Definition, Formation
网页Breccia is a term most often used for clastic sedimentary rocks that are composed of large angular fragments (over two millimeters in diameter). The spaces between the large angular fragments are filled with a matrix of smaller particles and a mineral cement that binds the rock together.
Breccia | Igneous, Sedimentary, Metamorphic | Britannica
网页breccia, lithified sedimentary rock consisting of angular or subangular fragments larger than 2 millimetres (0.08 inch). It differs from a conglomerate, which consists of rounded clasts. A brief treatment of breccias follows. For full treatment, …
Breccias - types. origins, distinguishing features - Earth Sci
网页Breccias are very important host rocks for mineralisation, not only because,of the large surface area they make available for water-rock interaction and the fact that they represent zones of high permeability, but some of the processes of brecciation such as hydraulic fracturing can closely related to the process of mineralisation ...
Breccia - SpringerLink
网页2022年6月25日 · Breccias represent the largest proportion of collected material during these missions, representing a third of the total mass collected (~382 kg) (Spray 2016). As of August 2021, 430 out of 475 known lunar meteorites as classed as breccias, according to the Meteoritical Bulletin.
A brief review on breccia: it's contrasting origin and diagnostic ...
网页2018年6月1日 · The study of these breccias (meteorite or impact breccias) helps in understanding impact processes on planetary bodies, resulting structures and evolutionary history, which in turn enhance our understanding over early solar system processes of accretion, differentiation, and surface evolution (Bischoff and Stöffler, 1992).
Breccia - SpringerLink
网页2021年11月26日 · A sedimentary breccia is a coarse-grained (particle size >2 mm) detrital rock composed of angular rock or mineral fragments held together by a cement or dispersed in a fine-grained solidified matrix. It originates as a result of localized sedimentary processes such as talus accumulation (sedimentary breccia), disturbance during sedimentation ...
A comprehensive survey of faults, breccias, and fractures in and ...
网页2017年8月9日 · Faults, breccias, fractures, and other structures formed in the brittle regime of the Earth’s upper crust record past tectonic events in the Española Basin and adjacent rift flank.
Breccia - New World Encyclopedia
网页Breccias can be classified by their constituents, mode of occurrence, constituent fragment size, the types of clasts and source of clasts. Several textural terms are used to describe the morphology and textural variations observed in breccias.
Breccia - SpringerLink
网页A rock consisting of a mass of angular fragments of pre-existing rocks, cemented together. The term (pronounced bretch-ia), derived from Italian ( brèche, in French), has widespread use and applies equally well to lithological types of many different origins. Multiple components are indicated as polymictic; single-component types are ...
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