Results 11 to 20 of about 60,050 (341)

A method for locating ore bodies by geochemical indexes of pegmatite-type lithium deposits in the Ke'eryin area, western Sichuan, China

open access: yesDizhi lixue xuebao, 2022
The Ke'eryin area in Sichuan province is one of the large rare metal ore concentration areas in the Songpan–Garze metallogenic belt. Numerous granite pegmatite dikes spread around the Ke'eryin mass.
TANG Wenchun   +5 more
doaj   +1 more source

The Forum of European Geological Surveys Geochemistry Task Group 1994-1996 inventory [PDF]

open access: yes, 1997
The Forum of European Geological Surveys (FOREGS) includes representatives from 33 European countries and is responsible for co-ordinating Geological Survey activities in Europe.
Fordyce, F.M.   +5 more
core   +1 more source

Selenium and molybdenum enrichment in uranium roll-front deposits of Wyoming and Colorado, USA [PDF]

open access: yes, 2017
Acknowledgements The authors wish to thank Cal VanHolland, Jim Bonner and John Cooper of Ur-Energy (Casper, Wyoming) for their assistance with sampling, data provision and feedback.
Bullock, Liam A., Parnell, John
core   +1 more source

Graphical statistics to explore the natural and anthropogenic processes influencing the inorganic quality of drinking water, ground water and surface water [PDF]

open access: yes, 2018
Plots of cumulative distribution functions (CDF) are a simple but powerful exploratory data analysis (EDA) tool to evaluate and compare statistical data distributions.
Banks, David   +5 more
core   +2 more sources

Kinetic simulation of hydrocarbon generation and its application to in-situ conversion of shale oil

open access: yesPetroleum Exploration and Development, 2019
The kinetic parameters of hydrocarbon generation are determined through experimental simulation and mathematical calculation using four typical samples selected from the Cretaceous Nenjiang Formation in the northwest of Songliao Basin, Chang 7 Member of ...
Bin ZHANG   +5 more
doaj   +1 more source

Geological evaluation and gas bearing analysis for shale reservoir in Ziyun-Luodian typical area of southern Guizhou province, China

open access: yesFrontiers in Earth Science, 2022
The Ziyun-Luodian area of southern Guizhou province in China is chosen as the research area and the Dawuba formation in Carboniferous system is the target stratum in this paper.
Keying Wang   +10 more
doaj   +1 more source

Typical end-member oil derived from Cambrian-Lower Ordovician source rocks in the Tarim Basin, NW China

open access: yesPetroleum Exploration and Development, 2018
Based on GC-MS data of saturate and aromatic hydrocarbon fractions in crude oils from Well TD 2 and the Yingmaili and Tazhong area in the Tarim Basin, the end-member oil derived from Cambrian-Lower Ordovician source rocks was determined.
Jianping BAO, Cuishan ZHU, Zhifeng WANG
doaj   +1 more source

Frontier exploration and the North Atlantic Igneous Province : new insights from a 2.6 km offshore volcanic sequence in the NE Faroe–Shetland Basin [PDF]

open access: yes, 2017
Acknowledgements and Funding This work was funded by Chevron. The authors would like to acknowledge the Chevron West of Shetlands team along with the Joint Venture partners OMV, Faroe Petroleum and Indemitsu for access to data along with permission to ...
Campbell, E.   +4 more
core   +2 more sources

Highly fractionated chromium isotopes in Mesoproterozoic-aged shales and atmospheric oxygen

open access: yesNature Communications, 2018
There is a long standing debate whether low atmospheric oxygen levels during the Mesoproterozoic Era hindered the evolution of crown-group animals. Here, the authors show with shale-hosted chromium isotopes that sufficient atmospheric oxygen for crown ...
Donald E. Canfield   +7 more
doaj   +1 more source

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