Results 21 to 30 of about 8,308 (230)

GEOLOGICAL CHARACTERISTICS AND SOME PROBLEMS IN DEVELOPMENT FOR OIL SHALE IN NORTHWEST CHINA ; pp. 380–397 [PDF]

Oil Shale, 2011
With the amount of oil resources becoming increasingly scarce, non-conven­tional resources such as oil shale, oil sands, and heavy oil, have caught our atten­tion. There are abundant oil shale resources in Northwest China.
BAI YUNLAI, TANG HUA, YAN KAI
doaj   +1 more source

Biomineralization of primary carbonate cements: a new biosignature in the fossil record from the Anisian of Southern Italy

Lethaia, EarlyView., 2021
Biomineralization is a generic term used to indicate biological‐mediated mineral formation. In carbonate mineralization, nucleation of crystals can be: (1) controlled directly by the organisms, like in the skeletal formation of most metazoans; (2) induced by microbial communities, by indirect precipitation mediated by their metabolic activities; or (3)
Adriano Guido, Matteo Sposato, Giuseppe Palladino, Alessandro Vescogni, Domenico Miriello   +4 more
wiley   +1 more source

An overview of the characteristic of typical Wufeng–Longmaxi shale gas fields in the Sichuan Basin, China

Natural Gas Industry B, 2021
The Wufeng Formation–Longmaxi Formation in the Sichuan Basin in South China is the key stratum for shale gas exploration and production. To date, three national shale gas demonstration zones have been developed.
Haikuan Nie, Qian Chen, Guangrong Zhang, Chuanxiang Sun, Pengwei Wang, Zhiyuan Lu   +5 more
doaj   +1 more source

The rise of black shale giants: case studies on the Exshaw Shale and Bowland Shale [PDF]

, 2023
The thickest developments of black shales are often found overlying shallow-water limestone, and mark fundamental changes in depositional environment. This is the case in the Carboniferous successions of the British Isles where thick black shale reserves
Li, Sen
core  

Weathering of phosphorus in black shales [PDF]

Global Biogeochemical Cycles, 2002
Rock weathering is the ultimate source of phosphorus (P) to the oceans, where P can be a limiting nutrient for biological production. In this paper, P weathering is examined in soil chronosequences formed in weathering profiles on the organic‐rich Woodford Shale, New Albany Shale and Green River Shale.
Lauren Clark Kolowith, Robert A. Berner
openaire   +1 more source

Characteristics of Karst Formations and Their Significance for Shale Gas Exploration

Frontiers in Earth Science, 2022
The classification method of karst formations is widely used in engineering and environmental geology but is seldom used in petroleum geology. In this study, the classification method of karst formations is applied to the sealing study of shale gas roof ...
Xiuquan Hu, Xiuquan Hu, Hong Liu, Xiucheng Tan, Yong Dan, Heng He, Chenjing Xiao, Ruixue Li   +7 more
doaj   +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

Frontiers 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, Jing Li, Yang Lin, Xinguo Zhuang, Vanlong Hoang, Peng Wu, Xin Luo, Han Zhang, Xiaoyang Zhang   +8 more
doaj   +1 more source

Distribusi lapisan batuan sedimen yang diduga mengandung gas biogenik dengan metode tahanan jenis di Pantai Saronggi, Sumenep, Madura

Indonesian Journal on Geoscience, 2014
DOI: 10.17014/ijog.v5i2.97A research on sediments estimated to contain biogenic gas at Saronggi coast Sumenep in Madura, East Java, has been done by using the resistivity method and produced 2-D (two dimensional) cross-sectional along four paths.
Lukman Arifin
doaj   +1 more source

Geochemistry study of black shale in Barzewa and Warte Sections, Sargelu Formation, Kurdistan Region, Iraq

, 2022
Sargelu Formation (Middle Jurassic) is characterized by a wide geographical distribution in Iraq and neighboring countries. This study includes two sections Barzewa and Warte locations in Erbil Governorate of Kurdistan region, Iraq, the organic ...
Ibrahim, Mohammed J., Mohammad, Farhad A., Dashti, A.   +2 more
core   +1 more source

Geochemistry of black-shale cycles at Hole 159-959D

, 2004
Geochemistry of black-shale cycles at Hole 159 ...
Britta Beckmann (6886889), Beckmann, Britta   +1 more
core   +1 more source