Results 61 to 70 of about 1,928,014 (200)

Black shales – an unconventional source of noble metals and rhenium

open access: yesЗаписки Горного института
The content of noble metals and rhenium in the Lower Paleozoic black shales of the eastern Baltic paleobasin in Russia was estimated. Shales are enriched in platinoids (PGM to 0.12 g/t) and rhenium (to 1.54 g/t).
Elena G. Panova   +4 more
doaj  

Terry M. Black to the Jacksons

open access: yes, 1966
Terry M. Black, writing from Camp Pendleton, California, to his parents, the Jacksons, in Van Buren, Arkansas, discusses his feelings about his recent leave in Van Buren, the current plans for his unit's deployment, and some of the training and duty he ...
Black, Terry Moore, 1946-2022;
core  

Organic geochemistry of Cretaceous black shales from the Galicia Margin

open access: yes, 1987
Organic-carbon-rich "black shales" from three different Cretaceous episodes sampled during Ocean Drilling Program Leg 103 have been studied by organic geochemical methods.
Keith W Dunham (6964976)   +5 more
core   +1 more source

Environmental impact of mineralised black shales

open access: yes, 2020
Black shales are sedimentary rocks containing >0.5% of organic carbon. They host polymetallic deposits which have been mined for Cu, Ni, Zn, Mn, P, Mo, V, U, Au and PGE (platinum group elements).
Loukola-Ruskeeniemi, K.   +1 more
core   +1 more source

Mineralogy and geochemistry of the Cambrain Shuijingtuo Formation black shales from Western Hubei, China: implications on enrichment of critical metals and paleoenvironment

open access: yesFrontiers in Marine Science
Black shales have attracted the attention of numerous researchers not only due to their high potential as hydrocarbon source rocks and shale gas reservoirs, but also to the enrichment of critical metal elements in black shale series.
Yuan Wang   +8 more
doaj   +1 more source

1962 Annual Review, Black Hills National Forest

open access: yes, 1962
Annual report for the Black Hills National Forest. "GPO 831935.
Black Hills National Forest (Agency : U.S.)
core  

Composition and structure of upper Jurassic black shales from the Moscow region considering new data

open access: yesИзвестия высших учебных заведений: Геология и разведка, 2016
For the first time the sections of the southeast of Moscow and adjacent areas of the Moscow region, which contain the Lower Volgian and Oxfordian black shales, were studied in detail and described.
S. Yu. Malenkina
doaj   +2 more sources

1959 Annual Review, Black Hills National Forest

open access: yes, 1959
Annual report for the Black Hills National Forest. "GPO 836822.
Black Hills National Forest (Agency : U.S.)
core  

Mineralogy and Geochemistry of the Black Shales, Selangor

open access: yes, 2016
This report presents the mineralogy and geochemistry of Black Shales at new outcrop located near Rawang, Selangor. However, nothing has been published regarding their geology, composition and maturation of this new outcrop.
Ramzi, Muhamad Syafiq
core  

1963 Annual Review, Black Hills National Forest

open access: yes, 1963
Annual report for the Black Hills National ...
Black Hills National Forest (Agency : U.S.)
core  

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