facies change
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facies change — The change in appearance that occurs when one lithologic unit ends and a new one is encountered … Lexicon of Cave and Karst Terminology
FACIÈS MINÉRALOGIQUE D’ESKOLA — «Un faciès minéralogique est l’ensemble des roches formées en conditions de pression et de température si semblables qu’une même composition chimique fournisse le même ensemble de minéraux (paragenèse minéralogique) quel que soit le mode de… … Encyclopédie Universelle
Facies — The term Facies can also refer to distinctive facial expressions associated with conditions such as Williams syndrome. In geology, facies are a body of rock with specified characteristics. [Reading (1996)] Ideally, a facies is a distinctive rock… … Wikipedia
sedimentary facies — Different, but contemporaneous and juxtaposed, sedimentary rocks. Terrigenous facies are accumulations of particles eroded from older rocks and transported to the depositional site. Biogenic facies are accumulations of whole or fragmented shells… … Universalium
Metamorphic facies — Eclogite Blueschist Greenschist Prehnite Pumpellyite … Wikipedia
zeolite facies — ▪ geology one of the major divisions of the mineral facies classification of metamorphic rocks, the rocks of which formed at the lowest temperatures and pressures associated with regional metamorphism. It represents the transition between… … Universalium
Geology — Oceanic crustContinental Crust] Geology (from Greek: γη, gê , earth ; and λόγος, logos , speech lit. to talk about the earth) is the science and study of the solid and liquid matter that constitute the Earth. The field of geology encompasses the… … Wikipedia
Stratigraphy — Stratigraphy, a branch of geology, studies rock layers and layering (stratification). It is primarily used in the study of sedimentary and layered volcanic rocks. Stratigraphy includes two related subfields: lithologic or lithostratigraphy and… … Wikipedia
Petroleum reservoir — A petroleum reservoir, or oil and gas reservoir, is a subsurface pool of hydrocarbons contained in porous or fractured rock formations. The naturally occurring hydrocarbons, such as crude oil or natural gas, are trapped by overlying rock… … Wikipedia
Geology of British Columbia — The geology of British Columbia is a function of its location on the leading edge of the North American continent. The mountainous physiography and the diversity of rock types and ages hint at the complex geology which is still undergoing… … Wikipedia
barrier — A geological formation or part of a formation having become impervious to ground water flow due to a facies change [16] … Lexicon of Cave and Karst Terminology
