| Marine Ingressive Events Recorded in Epicontinental Sequences:Example from the Cretaceous Songliao Basin of NE China in Comparison with the Triassic Central Europe Basin of SW Germany |
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| 作者姓名： | WANG Pujun LIU Wanzhu and YIN Xiuzhen |
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| 作者单位： | WANG Pujun，LIU Wanzhu and YIN Xiuzhen(College of Earth Science，Jilin University，Changchun 130061，P. R. China)SCHNEIDER Werner(College of Geology，Braunschweig University，Braunschweig D38023，Germany)MATTERN Frank(College of Geology，Berlin Freedom Un |
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| 基金项目： | NSFC (National Science Foundation of China) Project No. 4967212, attained with the assistance of the AvH (Alexander von Humboldt Foundation) of Germany. |
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| 摘 要： | Songliao Basin is filled predominantly with continental facies sediments including alluvial fan, fluvial plain, fan delta , lacustrine delta, shore ?shallow lacustrine, beach salty flat, semi - deep to deep lacustrine, subaqueous gravity flow, lacustrine swamp and pyroclastic sediments. However, some event units were formed during lake - marine linking periods of the Mid - Cretaceous in the basin, which include black shales with high values for salinity ( Sr/Ba) , alkalinity (Ca Mg)/ (Si Al) , reducibility ( Ni Zn)/Ga and sulfide sulfur as well as heavy isotopes. The Breitenholz ?section to be represen-ted for facies comparison with the Cretaceous evaporitic series in Northeast China is localized in Southwest Germany. Stratig-raphically it belongs to the Crabfeld Formation of Keuper of the Germanic Triassic corresponding to Ladinian - Camian of the international reference scale, and is generally called Lower Gipskeuper. The Germanic Triassic was deposited in the epiconti-nental(cratonic) central Euro
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Marine Ingressive Events Recorded in Epicontinental Sequences:Example from the Cretaceous Songliao Basin of NE China in Comparisonwith the Triassic Central Europe Basin of SW Germany |
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| WANG Pujun,LIU Wanzhu and YIN Xiuzhen.Marine Ingressive Events Recorded in Epicontinental Sequences:Example from the Cretaceous Songliao Basin of NE China in Comparison with the Triassic Central Europe Basin of SW Germany[J].Journal of Geoscientific Research in Northeast Asia,2002(1). |
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| Authors: | WANG Pujun LIU Wanzhu and YIN Xiuzhen |
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| Abstract: | Songliao Basin is filled predominantly with continental facies sediments including alluvial fan, fluvial plain, fan delta , lacustrine delta, shore ?shallow lacustrine, beach salty flat, semi - deep to deep lacustrine, subaqueous gravity flow, lacustrine swamp and pyroclastic sediments. However, some event units were formed during lake - marine linking periods of the Mid - Cretaceous in the basin, which include black shales with high values for salinity ( Sr/Ba) , alkalinity (Ca Mg)/ (Si Al) , reducibility ( Ni Zn)/Ga and sulfide sulfur as well as heavy isotopes. The Breitenholz ?section to be represen-ted for facies comparison with the Cretaceous evaporitic series in Northeast China is localized in Southwest Germany. Stratig-raphically it belongs to the Crabfeld Formation of Keuper of the Germanic Triassic corresponding to Ladinian - Camian of the international reference scale, and is generally called Lower Gipskeuper. The Germanic Triassic was deposited in the epiconti-nental(cratonic) central Europe Basin. It covered the area in between Great Britain, North Sea, Poland and Southern Ger-many. It is composed of cyclic deposits of multicolored mudstones, gypsum/anhydrite, and dolomite beds. The two cases of marine ingression - influenced sequences share some common features. |
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| Keywords: | Epicontimental sequences Ingressive Eacies comparison |
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