Results 51 to 60 of about 1,983,107 (202)

The importance of the oil-shale Bings of West Lothian, Scotland, to local and national biodiversity [PDF]

, 2006
The oil-shale bings of West Lothian, Scotland, are a group of post-industrial waste sites, unique in Britain and Western Europe. The industrial exploitation of oil-bearing rocks has created a habitat with its own distinctive flora and fauna.
Harvie, Barbra
core   +1 more source

Acid Leaching of Uranium from Weathered Uraniferous Black Shale

International Journal of Economic and Environment Geology
This paper describes the chemical leaching of uranium from weathered black shale by using sulfuric acid (H2SO4) andacidic ferric sulfate (Fe2(SO4)3solutions as lixiviants.
Tariq M Bhatti
doaj   +1 more source

Bryozoan‐Rich Carbonate Units of the Erfoud Area (SE Morocco) Record Latest Katian to Early Hirnantian Interglacial Intervals

Geological Journal, EarlyView.
In this study, we re‐examine the depositional architecture of the Erfoud limestone in Morocco. Introducing new biostratigraphic constraints from chitinozoan assemblages, we show that Katian to Hirnantian bryozoan‐pelmatozoan meadows reflect flooding events linked to a series of interglacial transgressions known to have occurred immediately prior to the
Philippe Razin, Jean‐François Ghienne, Amira Meddour, Lorena Tessitore, Thijs R. A. Vandenbroucke   +4 more
wiley   +1 more source

The relationship between cellular protein content and selenium accumulation in freshwater microalgae

Integrated Environmental Assessment and Management, EarlyView.
Abstract Variability in the bioconcentration of selenium (Se) by primary producers at the base of the food web results in uncertainty in predictions of bioaccumulation and ecological risk to higher trophic level organisms. Water chemistry, speciation of Se, and periphyton community composition have all been suggested as factors that contribute to ...
Courtney Bogstie, Melanie Gallant, James R. Elphick, Christopher Kennedy   +3 more
wiley   +1 more source

Did lingering ice sheets moderate anoxia in the early Palaeozoic of Libya? [PDF]

The Hirnantian glaciation of West Gondwana produced a glacially sculpted topography, which is draped by organic-rich latest Ordovician and early Silurian ‘hot shales’.
Meinhold, Guido, Le Heron, D. P., Page, A. A., Whitham, A. G.   +3 more
core   +1 more source

Formation, evolution, reconstruction of black shales and their influence on shale oil and gas resource

China Geology
: Black shales are important products of material cycling and energy exchange among the lithosphere, atmosphere, hydrosphere, and biosphere. They are widely distributed throughout geological history and provide essential energy and mineral resources for ...
Shi-zhen Li, Qiu-chen Xu, Mu Liu, Guo-heng Liu, Yi-fan Li, Wen-yang Wang, Xiao-guang Yang, Wei-bin Liu, Yan-fei An, Peng Sun, Tao Liu, Jiang-hui Ding, Qian-chao Li, Chao-gang Fang   +13 more
doaj   +1 more source

Do Black and White Americans Differ in Willingness to Engage in Traditional, Alternative, and Religious Treatment Modalities for Depression?: A Hypothetical Vignette Study

Journal of Clinical Psychology, EarlyView.
ABSTRACT Black Americans have lower engagement in traditional mental health treatment compared to White Americans. However, complementary and alternative medicine is widely used, can be integrated into traditional treatment, and may have fewer barriers associated with it than traditional treatment.
Alexis McGhee‐Dinvaut, Jennifer M. Taber, Stephen Ilardi   +2 more
wiley   +1 more source

Discovery and geological significance of black carbon in Triassic Yanchang Formation in Ordos Basin and its influences on source rock evaluation, NW China

Petroleum Exploration and Development
Through investigating the Triassic Yanchang Formation in the Ordos Basin, black carbon has been found for the first time in the seventh member of the Middle Triassic Yanchang Formation (Chang 7 Member).
Jingwei CUI, Rukai ZHU, Yang LI, Zhongyi ZHANG, Guanglin LIU, Yalin QI, Xiao HUI   +6 more
doaj   +1 more source

Dispositional characteristics of Ordovician Wufeng Formation and Silurian Longmaxi Formation in Sichuan Basin and its adjacent areas

Petroleum Research, 2017
According to data of gas wells and typical sections of Wufeng Formation and Longmaxi Formation in Sichuan Basin, shale of various graptolite zones were analyzed to determine depositional environment, lithology and thickness characteristics of the ...
Haikuan Nie, Zhijun Jin, Xin Ma, Zhongbao Liu, Tuo Lin, Zhenheng Yang   +5 more
doaj   +1 more source

NITROGEN ISOTOPES IN KUKERSITE AND BLACK SHALE IMPLYING ORDOVICIAN-SILURIAN SEAWATER REDOX CONDITIONS; pp. 60–75 [PDF]

Oil Shale, 2013
For the first time data on nitrogen isotopes from the Ordovician-Silurian sedimentary rocks of the Baltic Basin are reported. Supplementary samples come from several regions worldwide.
ENLI KIIPLI, TARMO KIIPLI
doaj   +1 more source