Influence of volcanism on the development of black shales in the Chang 7 Member of Yanchang Formation in the Ordos Basin

In geological history, volcanism is closely related to the deposition of many black shales. However, the specific mechanism between volcanism and the deposition of black shales is still unclear. The black shales developed in the Chang 7 Member of the Yanchang Formation in the Ordos Basin are conside...

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Veröffentlicht in:	International journal of earth sciences : Geologische Rundschau 2021-09, Vol.110 (6), p.1939-1960
Hauptverfasser:	Wang, Cheng, Wang, Qinxian, Chen, Guojun, Chen, Duofu
Format:	Artikel
Sprache:	eng
Schlagworte:	Acid rain Aluminum Anoxia Anoxic conditions Ash layers Biodegradation Blooms Copper Deposition Earth and Environmental Science Earth Sciences Environmental effects Freshwater Geochemistry Geological history Geology Geophysics/Geodesy Hydrocarbons Hydrothermal activity Indicators Inland water environment Iron Lakes Mineral Resources Molybdenum Nickel Nodules Nutrient cycles Nutrient sources Nutrients Organic carbon Organic matter Original Paper Oxidoreductions Phosphates Primary production Productivity Sedimentary rocks Sedimentology Shale Shales Structural Geology Sulfur Sulfur content Sulfur dioxide Titanium Total organic carbon Tuff Volcanic activity Volcanic ash Volcanic deposits Volcanism Weathering
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