| 临夏盆地中中新统虎家梁组的建立及其特征 |
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| 引用本文： | 邓涛.临夏盆地中中新统虎家梁组的建立及其特征[J].地层学杂志,2004,28(4):307-312. |
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| 作者姓名： | 邓涛 |
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| 作者单位： | 中国科学院古脊椎动物与古人类研究所,北京,100044 |
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| 基金项目： | 国家自然科学基金，中国科学院知识创新工程项目，全国高等学校优秀博士学位论文作者专项基金，国家重点基础研究发展计划(973计划) |
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| 摘 要： | 甘肃临夏盆地上中新统柳树组红黏土之下为一套以河流相砂砾岩为主的地层 ,现命名为虎家梁组 ,下伏中中新统东乡组紫红色泥岩。虎家梁组含有丰富的铲齿象动物群化石 ,包括 Alloptox sp.,Pliopithecus sp.,H emicy-on teilhardi,Amphicyon tairumensis,Percrocuta tungurensis,Gomphotherium sp.,Platybelodon grangeri,Zy-golophodon sp.,Anchitherium gobiensis,Alicornopssp.,H ispanotherium matritense,K ubanochoerusgigas,L istri-odon mongoliensis,Palaeotragustungurensis和 Turcocerus sp.等。依据岩性及哺乳动物化石资料 ,在临夏盆地建立虎家梁组并确定其时代为中中新世通古尔期。通过哺乳动物化石及地层层序的对比 ,临夏盆地的虎家梁组与宁夏彰恩堡组、兰州盆地咸水河组上段、准噶尔盆地哈拉玛盖组、蓝田地区冷水沟组、房县地区沙坪组和内蒙古通古尔组相当。
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| 关 键 词： | 临夏 甘肃 中新统 新近系 虎家梁组 岩石地层单位 |
| 文章编号： | 0253-4959(2004)04-0307-06 |
| 修稿时间： | 2004年5月16日 |
ESTABLISHMENT OF THE MIDDLE MIOCENE HUJIALIANG FORMATION IN THE LINXIA BASIN OF GANSU AND ITS FEATURES |
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| DENG Tao.ESTABLISHMENT OF THE MIDDLE MIOCENE HUJIALIANG FORMATION IN THE LINXIA BASIN OF GANSU AND ITS FEATURES[J].Journal of Stratigraphy,2004,28(4):307-312. |
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| Authors: | DENG Tao |
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| Abstract: | Under the red clay of the Upper Miocene Liushu Formation, there is a complex of fluviolacustrine deposits dominated by sandstone and conglomerates rich in fossils such as Platybelodon fauna, including Alloptox sp., Pliopithecus sp., Hemicyon teilhardi, Amphicyon tairumensis, Percrocuta tungurensis, Gomphotherium sp., Platybelodon grangeri, Zygolophodon sp., Anchitherium gobiensis, Alicornops sp., Hispanotherium matritense, Kubanochoerus gigas, Listriodon mongoliensis, Palaeotragus tungurensis, and Turcocerus sp. etc. On the basis of lithologic characters and mammalian fossils, the Hujialiang Formation is established in the Linxia Basin, and its age is determined to be Middle Miocene Tunggurian. According to the correlations of mammalian fossils and stratigraphic sequences, the Hujialiang Formation in the Linxia Basin should correspond to the Zhangenbao Formation in the Ningxia, the Upper Member of the Xianshuihe Formation in the Lanzhou Basin of Gansu, the Halamagai Formation in the Junggar Basin of Xinjiang, the Lengshuigou Formation in the Lantian district of Shaanxi, the Shaping Formation in the Fangxian district of Hubei, and the Tunggur Formation in Inner Mongolia. |
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| Keywords: | Linxia Gansu Miocene Neogene Hujialiang Formation lithostratigraphy |
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