Results 31 to 40 of about 5,253,598 (403)

Study on Influcing Factors for Reduction Capacity of Gray-Green Sandstone in Ordos Sandstone-type Uranium Deposits

Yankuang ceshi, 2018
BACKGROUND The reductive environment of uranium is the most important influencing factor of uranium mineralization. The study of various redox markers in interlayer oxidation bands is of great significance for finding interlayer oxidation zone sandstone ...
ZHANG Li-juan, AN Shu-qing, XU Tie-min, ZHANG Nan, WEI Shuang, FANG Peng-da   +5 more
doaj   +1 more source

Unveiling Aggregation‐Induced Singlet Fission in Push–Pull Diketopyrrolopyrrole Water Dispersed Nanoaggregates and Thin Films

Advanced Functional Materials, EarlyView.
Aggregates of diketopyrrolopyrrole dipolar and quadrupolar systems exhibit panchromatic absorption spectra extending in the entire visible range. Upon aggregation in water and in the solid state, their fluorescence is almost completely quenched and their singlet excited state lifetime is significantly shortened.
Roberto Cantoni, Martina Alebardi, Eliana Maria D'Amato, Charu Popli, Yuvraj Patil, Pietro Mancini, Alessandro Di Michele, Anna Spalletti, Rajneesh Misra, Theodore Goodson, Benedetta Carlotti   +10 more
wiley   +1 more source

Research on the Correlation between Methane and Hydrogen in Acid-hydrolyzed Gases for Geochemical Exploration Samples

Yankuang ceshi, 2018
Acidolysis hydrocarbon is an important index with relatively high accuracy in the geochemical exploration for oil and gas and has been widely used.
LI Zhong-yu, ZHAO Jiang-hua, HE Jun, LI Yan-guang, LI Wei-liang, HAN Wei   +5 more
doaj   +1 more source

Determination of Major Elements in Sepoilite by Inductively Coupled Plasma-Optical Emission Spectrometry with Opening Acid Dissolution

Yankuang ceshi, 2020
BACKGROUND Sepiolite is a widely used fibrous magnesium-rich silicate clay mineral. Sepiolite is mainly composed of silicon and magnesium, with minor aluminum, potassium, sodium and other impurities.
WANG Li-qiang, WANG Jia-song, XU Tie-min, WU Liang-ying, ZENG Jiang-ping, ZHENG Zhi-kang, WEI Shuang   +6 more
doaj   +1 more source

The landscape and mineral resources of Illinois [PDF]

, 1986
Ope
Illinois State Geological Survey
core  

Geological Survey of Canada

Science, 1885
: A hornblende-biotite monzogranite with a crystallization age of 2692 ± 6 Ma and semi-pelite-psammite cut by a peraluminous granite dated at 2682 ± 17 Ma establish the presence of plutonic and supracrustal rocks of Archean age on Southampton Island.
BULLETlN, Robert Gilbert, Adele Crowder, W. Robert, Dalrymple, George Gorrell, Jane Law, Cheryl McKen, David R. Shortie, William W. Shilu   +9 more
semanticscholar   +1 more source

Precursor Mineral Phases of Forming Mollusk Shell Nacre: A Study of Hydrated Samples

Advanced Functional Materials, EarlyView.
Mineral, organic phase, and water are the essential components in mollusk shell nacre formation. Their interplay is not well understood, because the hydrated material is difficult to observe at high resolution, under close to native conditions. Forming nacre is studied using environmental and cryo‐electron microscopy and hydrated ACC phases, together ...
Anna Kozell, Xiao‐Meng Sui, Neta Varsano, Stephen Weiner, Lia Addadi   +4 more
wiley   +1 more source

IRSEI-based monitoring of ecological quality and analysis of drivers in the Daling River Basin

Scientific Reports
The Daling River Basin is an important ecological functional area in the western region of Liaoning with outstanding environmental problems. The monitoring of ecological and environmental quality in the basin and the analysis of driving factors are of ...
Jintao Ge, Cheng Qian, Chao Zhang, Li Zhang, Weimin Song, Fuchao Na, Hongwei Ma, Changlai Guo, Shan Jiang   +8 more
doaj   +1 more source

Distribution of gas hydrate reservoir in the first production test region of the Shenhu area, South China Sea

China Geology, 2018
: In May and July of 2017, China Geological Survey (CGS), and Guangzhou Marine Geological Survey (GMGS) carried out a production test of gas hydrate in the Shenhu area of the South China Sea and acquired a breakthrough of two months continuous gas ...
Ru-wei Zhang, Jing-an Lu, Pen-fei Wen, Zeng-gui Kuang, Bao-jin Zhang, Hua Xue, Yun-xia Xu, Xi Chen   +7 more
doaj   +1 more source

Hydrology of the Upper Yakima River Basin, Washington [PDF]

, 1985
https://digitalcommons.cwu.edu/government_posters/1172/thumbnail ...
United States Geological Survey
core   +1 more source