black shale


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black shale

[¦blak ′shāl]
(petrology)
Very thinly bedded shale rich in sulfides such as pyrite and organic material deposited under barred basin conditions so that there was an anaerobic accumulation. Also known as biopelite.
References in periodicals archive ?
Black shale ore sample having black color might be due to the existence of carbon, hydrocarbon or iron sulfide that was present in it.
As a result, the Silurian black shale sequence of Western Ukraine can be regarded as a potential unconventional natural gas resource, and may therefore become an important supplement to the conventional energy sources in the future.
2) Lockatong Formation (1000-2000 m)--mainly cyclic organic matter-rich black shale and grey to red mudstone, siltstone, and sandstone facies with intercalations of argillaceous carbonate (e.
1), which shows a succession of Upper Sinemurian, Pliensbachian and Lower Toarcian (Lower Jurassic) deposits, offers an excellent opportunity to asses this statement, as several climatic oscillations have been identified (Gomez et al, 2016) and the record of the TOC content of the succession reveals the presence of several intervals of organic-rich and black shale deposits.
9,16) Since the 1970s, the Deep Sea Drilling Project (DSDP) and the subsequent scientific ocean drilling programs (the Ocean Drilling Program, Integrated Ocean Drilling Program, and International Ocean Discovery Program) have played crucial roles in the study of Cretaceous OAEs by supplying relatively fresh samples of black shale from previously unsampled ocean basins.
8 thousand tons of which sandstone-type uranium deposits, 47 thousand tons - black shale type.
Recovery in conodont bearing-samples ranged from one element from the black shale in Location D and from the gray shale at the top of Location B to 160 elements from the gray shale at the top of Location A.
Furthermore, the mineral system at Old Pirate continues to surprise us with plentiful gold observed, for the first time outside of the quartz veins, in a black shale / shear zone at the Golden Hind.
The Waipawa Black Shale and Whangai formations are high-quality source rock formations present throughout most of TAG's million-acre East Coast Basin land holdings.
We argue that the concentration of zinc in ancient marine black shales is directly related to the concentrations of zinc in seawater and show that zinc is abundant in these rocks throughout Earth's history," said Clint Scott, the first author of the research paper and a former UC Riverside graduate student.
Carbonates are much more widespread than black shales on Earth through space and time.