Results 121 to 130 of about 46,126 (273)

Electrical, mineralogical, geochemical and provenance of

open access: yesEgyptian Journal of Petroleum, 2016
Detailed mineralogical and geochemical studies were carried out on the middle members of the black shales of the Duwi Formation (Quseir–Safaga province) to define their source rock, paleo-weathering, pollution impact and provenance of the sources.
Esmat A. Abou El-Anwar, Mohamed M. Gomaa
doaj   +1 more source

Organic carbon cycling and black shale deposition: an Earth System Science perspective [PDF]

open access: gold, 2023
Zhijun Jin   +4 more
openalex   +1 more source

Siratur gold deposit in the black shales of the ophiolite association (the Southern Urals)

open access: hybrid, 2020
А. В. Сначев   +5 more
openalex   +1 more source

The Bakken Model: Deposition of Organic-Rich Mudstones and Petroleum Source Rocks as Shallow-Marine Facies Through the Phanerozoic

open access: yesJournal of Marine Science and Engineering
Many organic-rich marine mudstones, which are key hydrocarbon sources, were deposited on continent margins in mid-water oxygen-minimum zones (OMZs) that expanded and intensified during oceanic anoxic events (OAEs).
Ed Landing
doaj   +1 more source

Base metal mineralisation associated with Ordovician shales in south-west Scotland [PDF]

open access: yes, 1984
Several narrow, lenticular belts of black cherty mudstone and siltstone (the Moffat Shales), alternating with thick greywacke sequences, strike north-east to south-west across Galloway with uniformly steep dip.
Jones, R.C., Leake, R.C., Stone, P.
core  

Influence of Organic Matter Thermal Maturity on Rare Earth Element Distribution: A Study of Middle Devonian Black Shales from the Appalachian Basin, USA

open access: yesEnergies
This study focuses on understanding the association of rare earth elements (REE; lanthanides + yttrium + scandium) with organic matter from the Middle Devonian black shales of the Appalachian Basin.
Shailee Bhattacharya   +7 more
doaj   +1 more source

Exploration for volcanogenic sulphide mineralisation at Benglog, north Wales [PDF]

open access: yes, 1983
Exploration for volcanogenic sulphide mineralisation around Benglog is one of three investigations designed to assess the metallogenic potential of the Ordovician Aran Volcanic Group.
Allen, P.M.   +4 more
core  

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