black shale वाक्य
उदाहरण वाक्य
मोबाइल
- Then there is black shale or slate matching the Luarca Slate of Llanvirn to Caradocian Age.
- In the Paleocene ( ) dark black shales mark the lack of oxygen in stagnant water.
- The Upper Ordovician Lower Silurian materials there contain a roughly thick, carbon-rich layer of black shale.
- Its bedrock is Precambrian-era gray and black shale.
- But the clincher was the green itself, backed by an amphitheater-like natural outcropping of black shale.
- The deposit was formed by remobilsation of uranium already enriched in the black shales by synsedimentary processes.
- The rock underlying the dam is Ohio Black Shale which is a largely hard, massive silt shale.
- A rock formation known as the Campbell's Ledge Black Shale occurs in the vicinity of Leggetts Creek.
- Calcareous shales and black shales also occur.
- Wismut explored a black shale-type uranium mineralisation below the villages of Hauptmannsgr�n and Neumark, Saxony west of Zwickau.
- The resulting elevated levels of carbon burial would account for the black shale deposition in the ocean basins.
- The Marmontains Formation can be correlated with the Valzeina Formation of Graub�nden and black shales in the Engadine.
- The formation of the foreland basin through rapid subsidence initiated a transgressive sequences that deposited basinal black shales.
- In May 1943, as one of the shafts was being deepened, the miners encountered bands of soft, black shale.
- Generally, black shale receives its influx of carbon from algae, which decays and forms an ooze known as sapropel.
- A trio of teen-agers excavated it from the black shale of an abandoned New Jersey quarry 39 years ago.
- The Ellsworth is composed of a lower part of interbedded brownish-black shale and an upper part of greenish-gray shale.
- In order for a shale to be a black shale, it must contain more than one percent organic carbon.
- In the upper part, intercalations of black shale with gypsum flakes and abundant pyritic micritical concretions appear, some with ammonites.
- The serpentine rock at the head of the Eel River is crushed to a green clay or shining black shales.
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