AGE OF THE HUOLINHE FORMATION IN THE HUOLINHE BASIN, EASTERN INNER MONGOLIA, CHINA: EVIDENCE FROM U-Pb ZIRCON DATING AND PALYNOLOGICAL ASSEMBLAGES
文献类型：期刊论文
| 作者 | Shi Gongle6 ; Li Jianguo6; Tan Tan6; Dong Chong6; Li Qiuli5; Wu Qiong4; Zhang Bole3; Yin Suxin6; Herrera Fabiany2; Herendeen Patrick S2
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| 刊名 | JOURNAL OF STRATIGRAPHY
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| 出版日期 | 2021 |
| 卷号 | 45期号:1页码:69-81 |
| 关键词 | 霍林河组 早白垩世 含煤盆地 U-Pb地质年代学 孢子花粉 内蒙古 Huolinhe Formation Early Cretaceous coal-bearing basin U-Pb geochronology pollen and spores Inner Mongolia |
| ISSN号 | 0253-4959 |
| 英文摘要 | The Huolinhe Formation in the Huolinhe Basin, eastern Inner Mongolia is one of the most important Lower Cretaceous coal-bearing strata in China, yielding abundant, diverse, and well-preserved plant fossils. Its precise age, however, is poorly known due to lack of associated marine deposits and volcanic beds. Here we present U-Pb zircon ages, and the associated palynological assemblages of an ash layer of the Huolinhe Formation recently discovered at the Zhahanaoer open-cast coal mine in Jarud Banner. Stratigraphic analyses based on boreholes suggest that the ash layer occurs near the bottom of the “lower coal-bearing member” of the Huolinhe Formation. U-Pb zircon geochronology using the SIMS method constrains the depositional age of the ash layer to be 125.6±1.0 Ma (late Barremian-earliest Aptian), and this is consistent with the result from LA-ICP-MS analyses of the same sample. A late Barremian-earliest Aptian age for the ash layer is also supported by the palynological assemblage associated with the layer, in which the pollen of gymnosperms and the spores of ferns and bryophytes are dominant, angiosperm pollen is very rare and represented by only Clavatipollenites. This study contributes important new data for understanding the age of the entire Huolinhe Formation and also provides a more precise maximum age for the key plant fossils preserved in the deposits above the ash layer. |
| 语种 | 英语 |
| 源URL | [http://ir.nigpas.ac.cn/handle/332004/41957]  |
| 专题 | 中国科学院南京地质古生物研究所 |
| 作者单位 | 1.耶鲁大学 2.Chicago Botanic Garden 3.Qingdao Research Institute of Geotechnical Prospecting and Surveying 4.南京大学 5.中国科学院地质与地球物理研究所 6.中国科学院南京地质古生物研究所 |
| 推荐引用方式 GB/T 7714 | Shi Gongle,Li Jianguo,Tan Tan,et al. AGE OF THE HUOLINHE FORMATION IN THE HUOLINHE BASIN, EASTERN INNER MONGOLIA, CHINA: EVIDENCE FROM U-Pb ZIRCON DATING AND PALYNOLOGICAL ASSEMBLAGES[J]. JOURNAL OF STRATIGRAPHY,2021,45(1):69-81. |
| APA | Shi Gongle.,Li Jianguo.,Tan Tan.,Dong Chong.,Li Qiuli.,...&Crane Peter R.(2021).AGE OF THE HUOLINHE FORMATION IN THE HUOLINHE BASIN, EASTERN INNER MONGOLIA, CHINA: EVIDENCE FROM U-Pb ZIRCON DATING AND PALYNOLOGICAL ASSEMBLAGES.JOURNAL OF STRATIGRAPHY,45(1),69-81. |
| MLA | Shi Gongle,et al."AGE OF THE HUOLINHE FORMATION IN THE HUOLINHE BASIN, EASTERN INNER MONGOLIA, CHINA: EVIDENCE FROM U-Pb ZIRCON DATING AND PALYNOLOGICAL ASSEMBLAGES".JOURNAL OF STRATIGRAPHY 45.1(2021):69-81. |
入库方式： OAI收割
来源：南京地质古生物研究所
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