shal′ey adj. n. A fissile rock composed of layers of claylike, fine-grained sediments. This is a red shale with greenish mottling. [Geology, Shale Gas] Containing shale, a fine-grained, fissile, detrital sedimentary rock formed by consolidation of clay- and silt-sized particles into thin, relatively impermeable layers.It is the most abundant sedimentary rock. Figure 1 Characteristic log shapes for different types of sand bodies set in shale, (a) Funnel shape, coarsening upward.Note that this is the shallowest interval, so the shale is least compacted. This website contains assessments and geologic reports, as well as spatial and tabular datasets, fischer assays and well logs from USGS oil shale research studies.. Shale oil can refer to two types of oil. Shale formations and silt formations are the most abundant sedimentary rocks in the Earth’s crust. Define shale. Antrim Shale – A shale deposit located in the northern Michigan basin that is a Devonian age rock formation lying at a relatively shallow depth of 1,000 feet. Geology and Resources of Some World Oil-Shale Deposits1 By John R. Dyni Abstract Oil-shale deposits are in many parts of the world. At old (middle Cambrian), it is one of the earliest fossil beds containing soft-part imprints.. The largest known deposit is … shale in Geology topic From Longman Dictionary of Contemporary English shale shale / ʃeɪl / noun [ uncountable ] HEG a smooth soft rock which breaks easily into thin flat pieces Examples from the Corpus shale • The track ran parallel to the South Coast Expressway , through land that was flat, a wasteground of weeds and shale . It is famous for the exceptional preservation of the soft parts of its fossils. 1. adj. (geology) A fine-grained sedimentary rock of a thin, laminated, and often friable, structure. In petroleum geology, organic shale formations are source rocks as well as seal rocks that trap oil and gas (Speight, 2014).In reservoir engineering, shale formations are flow barriers. The Burgess Shale is a fossil-bearing deposit exposed in the Canadian Rockies of British Columbia, Canada. Gas has been produced from this formation for several decades Shale Oil: A type of unconventional oil found in shale formations. shale synonyms, shale pronunciation, shale translation, English dictionary definition of shale. (b) Cylinder shape, blocky. They range in age from Cambrian to Tertiary and were formed in a variety of marine, continental, and lacustrine depositional environments. NATURAL GAS FROM SHALE: Questions and Answers Shale Gas Glossary Acquifer – A single underground geological formation, or group of formations, containing water. Note that the SP log is featureless because the borehole salinity is the same as formation salinity. Both colors indicate iron oxide coatings on the clastic grains. The close--up view shows silvery flecks of muscovite. James G. Speight PhD, DSc, in Shale Gas Production Processes, 2013 1.2 Shale. Although these are sand-sized, the bulk of the rock is silt- and clay-sized and thus is a shale. The Eocene Green River Formation of Colorado, Utah, and Wyoming contains the largest oil shale deposits in the world.

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