| 通天河上游墩日含煤岩系地层时代的新认识 |
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| 引用本文： | 张发德,岳天祥,宋令莉. 通天河上游墩日含煤岩系地层时代的新认识[J]. 青海国土经略, 1998, 0(2) |
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| 作者姓名： | 张发德 岳天祥 宋令莉 |
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| 作者单位： | 青海煤田地质研究所(张发德，岳天祥)，青海煤田地质研究所(宋令莉) |
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| 摘 要： | 墩日含煤岩系时代原定为晚三叠世。该岩系的岩性、岩相、煤质、孢粉组合等诸多特征均反映了下侏罗统的沉积特点,故应将其厘定为早侏罗世。
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| 关 键 词： | 通天河上游 墩日 含煤岩系 孢粉组合 早侏罗世 |
NEW RECOGNITION ON THE STRATIGRAPHIC AGE OF DUNRI COAL-BEARING ROCK SERIES IN THE UPPER REACHES OF TONGTIAN RIVER |
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| Zhang Fade,Yue Tianxiang,Song Lingli Qinghai Institute of Coal Geology. NEW RECOGNITION ON THE STRATIGRAPHIC AGE OF DUNRI COAL-BEARING ROCK SERIES IN THE UPPER REACHES OF TONGTIAN RIVER[J]. QINGHAI GUOTU JINGLUE, 1998, 0(2) |
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| Authors: | Zhang Fade Yue Tianxiang Song Lingli Qinghai Institute of Coal Geology |
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| Affiliation: | Zhang Fade;Yue Tianxiang;Song Lingli Qinghai Institute of Coal Geology |
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| Abstract: | The stratigraphic age of Dunri coal-bearing rock series was formerly belongedto Late-Triassic Epoch, but its many features such as lithology, lithofaces,coal quality andsporopollen assemblage etc. all reflect to sedimentary characteristics of Lower Jurassic stra-ta. |
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| Keywords: | the upper reaches of Tongtian river Dunri coal-bearing rock series sporopollen assemblage Early Jurassic Epoch |
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