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| Sedimentological features of Cretaceous－Tertiary ( K/T) boundary section a long Heilongjiang River , Northeast China | |
| 作者单位： | Shigeyuki Suzukic(Department of Earth Sciences, Okayama University, Okayama 799-8530, Japan);Hakuyu Okada(Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan);SUN Chunlin(Research Center of Paleontology and Stratigraphy, Jilin University, Changchun 130026, China);SUN Ge(Research Center of Paleontology and Stratigraphy, Jilin University, Changchun 130026, China;Paleontological Institute of Shenyang Normal University, Shenyang 110034, China) |
| 基金项目： | This research was supported by the fund for the Projects 30220130698 and 40842002 of NSFC, China, and for the Project 111 of China (Jilin University). We are also grateful to the Yichun City and Jiayin County governments for their kind supports. We express our sincere thanks to Dr. Ian Harding for h |
| 摘 要： | The Jiayin area along the Heilongjiang River in Northeast China has attracted stratigraphic and sediment-ological interests recently because the Cretaceous－Tertiary (K/T) boundary should be located in this non-marine succession. Dinosaur remains disappear suddenly at the upper part of the Maastrichtian, whereas plants gradually evolved throughout the succession. Analysis of sedimentary facies has been carried out and paleo-environments through Upper Cretaceous to lower Paleocene sections are reconstructed. Fluvial to lacustrine sedimentary environments are inferred from the facies. Several debris flow events have been identified, and it is in these deposits that the dinosaur fossils are concentrated. |
| 关 键 词： | 中国东北地区 第三纪 白垩纪 黑龙江 沉积特征 边界 恐龙化石 晚白垩世 |
Sedimentological features of Cretaceous-Tertiary (K/T) boundary section along Heilongjiang River, Northeast China |
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| Authors: | Shigeyuki Suzukic Hakuyu Okada SUN Chunlin SUN Ge |
| Institution: | 1. Department of Earth Sciences, Okayama University, Okayama 799-8530, Japan 2. Department of Earth and Planetary Sciences, Kyushu University, Fukuoka 812-8581, Japan 3. Research Center of Paleontology and Stratigraphy, Jilin University, Changchun 130026, China 4. Research Center of Paleontology and Stratigraphy, Jilin University, Changchun 130026, China;Paleontological Institute of Shenyang Normal University, Shenyang 110034, China |
| Abstract: | The Jiayin area along the Heilongjiang River in Northeast China has attracted stratigraphic and sedimentological interests recently because the Cretaceous- -Tertiary (K/T) boundary should be located in this non-marine succession. Dinosaur remains disappear suddenly at the upper part of the Maastrichtian, whereas plants gradually evolved throughout the succession. Analysis of sedimentary facies has been carried out and paleo-environments through Upper Cretaceous to lower Paleocene sections are reconstructed. Fluvial to lacustrine sedimentary environments are inferred from the facies. Several debris flow events have been identified, and it is in these deposits that the dinosaur fossils are concentrated. |
| Keywords: | sedimentary environment sedimentary facies Heilongjiang River area K/T boundary |
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