| 藏西北三岔口地区泥瓮系生物礁特征及其意义 |
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| 引用本文： | 夏军,钟华明,童劲松,鲁如魁.藏西北三岔口地区泥瓮系生物礁特征及其意义[J].沉积与特提斯地质,2006,26(2):34-41. |
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| 作者姓名： | 夏军 钟华明 童劲松 鲁如魁 |
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| 作者单位： | [1]安徽省地质调查院,安徽合肥230001 [2]中国地质大学,北京100083 [3]西北大学,陕西西安710069 |
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| 基金项目： | 中国地质调查局“西藏1：25万松西幅、温泉幅区域地质调查”（200213000007）.参加剖面测制及化石采集工作的还有杨世学、李运怀、余小俭、李文庆、汪龙云、狄劲松、鲁家全等,在此深表谢意. |
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| 摘 要： | 在羌塘西部的三岔口一带泥盆系拉竹龙组中发现规模较大的生物礁——台地前缘礁。下层礁体厚7．28m，上层礁体厚40.98m。两个礁体均为叠置礁，礁体由礁基、礁核、礁顶组成。剖面显示发育有礁前垮塌角砾、礁格架、礁间及礁后环境。泥盆纪生物礁的发现为羌塘盆地寻找油气资源提供了新思路。
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| 关 键 词： | 生物礁 拉竹龙组 泥盆系 羌塘盆地 西藏 |
| 文章编号： | 1009-3850（2006）02-0034-08 |
| 收稿时间： | 2005-11-16 |
| 修稿时间： | 2005-11-16 |
The Devonian bioherms in Sanchakou, northwestern Xizang and their implications |
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| XIA Jun, ZHONG Hua-ming, TONG Jing-song, LU Ru-kui.The Devonian bioherms in Sanchakou, northwestern Xizang and their implications[J].Sedimentary Geology and Tethyan Geology,2006,26(2):34-41. |
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| Authors: | XIA Jun ZHONG Hua-ming TONG Jing-song LU Ru-kui |
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| Abstract: | Two layers of the larger-sized bioherms are identified in the Devonian Lazhuglung Formation in Sanchakou, northwestem Xizang. The bioherms occur as superimposed reefs have a thickness of 7.28 m for the lower bioherms, and 40.98 m for the upper ones, and consist of reef batholith, reef core and reef crest. The reef front talus, reef frame, interreef and backreef deposits are observed in the profile. The discovery of the Devonian bioherms may offer some new thoughts on possible future direction of the oil and gas exploration in the study area. |
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| Keywords: | bioherm Lazhuglung Formation Devonian Qiangtang Basin Xizang |
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