| 新疆巴楚小海子剖面泥盆系Frasnian-Famennian界线 |
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| 引用本文： | 江大勇,郝维城,白顺良,王新平,姚建新.新疆巴楚小海子剖面泥盆系Frasnian-Famennian界线[J].地层学杂志,2001,25(4):294-298. |
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| 作者姓名： | 江大勇 郝维城 白顺良 王新平 姚建新 |
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| 作者单位： | 1. 北京大学地质学系,
2. 中国地质科学院地质研究所, |
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| 基金项目： | 国家自然科学基金项目 ( No.49972 0 15 )研究成果之一 |
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| 摘 要： | 应用化学 -生物地层学方法 ,在新疆塔里木盆地首次识别出了泥盆系 Frasnian- Fam ennian界线。在巴楚小海子剖面 ,以出现牙形石 Icriodus deformatus和可与华南 F- F界线化学异常对比的化学元素丰度或比值异常为标志 ,将 F- F界线置于巴楚组中段底部灰岩中。研究结果表明 ,重要的储油层和开发层——东河砂岩段位于 F- F界线之下 ,为泥盆纪弗拉斯期。同时 ,本文为探讨地史期间最重大的事件之一—— F- F事件的特征和机制提供了资料。
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| 关 键 词： | Frasnian-Famennian界线 化学-生物地层 泥盆系 巴楚 新疆 |
| 文章编号： | 0253-4959(2001)04-0294-05 |
| 修稿时间： | 2001年2月20日 |
FRASNIAN-FAMENNIAN BOUNDARY (DEVONIAN) OF THE XIAOHAIZI SECTION AT BACHU, XINJIANG |
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| JIANG Da-yong ,HAO Wei-cheng ,BAI Shun-liang ,WANG Xin-ping and YAO Jian-xin.FRASNIAN-FAMENNIAN BOUNDARY (DEVONIAN) OF THE XIAOHAIZI SECTION AT BACHU, XINJIANG[J].Journal of Stratigraphy,2001,25(4):294-298. |
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| Authors: | JIANG Da-yong HAO Wei-cheng BAI Shun-liang WANG Xin-ping and YAO Jian-xin |
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| Institution: | JIANG Da-yong 1),HAO Wei-cheng 1),BAI Shun-liang 1),WANG Xin-ping 1) and YAO Jian-xin 2) |
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| Abstract: | The Frasnian-Famennian (F-F) boundary (Devonian) is recognized in the Tarim Basin (Xinjiang) by applying chemo-biostratigraphic correlation method. At the Xiaohaizi Section of Bachu County, the F-F boundary is placed in the basal limestone of the Middle Member of the Bachu Formation, which is marked by the first appearance of conodont Icriodus deformatus and appearance of characteristic chemo-fluctuations, which can be correlated with the Frasnian-Famennian chemo-fluctuation in South China. The results of the present study indicate that the Donghe Sandstone, an important oil reservoir and development stratum lying below the F-F boundary, is attributed to the Frasnian (Devonian). Furthermore, the present paper also provides data for exploring the characteristics and mechanism of the Frasnian-Famennian Boundary Event, which is one of the greatest events in the Earth history. |
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| Keywords: | Frasnian-Famennian boundary chemo-biostratigraphy Devonian Bachu Xinjiang |
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