| 侏罗纪全球古海洋演变历程及其对西藏羌塘盆地油气勘探的启示? |
| 投稿时间：2024-05-24 修订日期：2024-07-17 点此下载全文 |
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| 基金项目:国家自然科学基金项目（面上项目，重点项目，重大项目） |
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| 中文摘要:羌塘盆地是我国西藏特提斯域内重要的油气勘探目标,目前在这一地区侏罗系地层发现以油页岩为标志的优质烃源岩和碳酸盐岩台地相白云岩储油层。本文根据全球侏罗纪古海洋和古气候研究的最新进展,试图从全球海平面波动、古海洋温度变化以及碳同位素正负向偏移的角度,解析侏罗纪时期有机质富集的机制和碳酸盐岩台地沉积模式,目的是为羌塘盆地生烃凹陷的预测和圈定有利勘探区块提供参考。 |
| 中文关键词:侏罗纪 古海洋 海平面 海洋温度 碳同位素 油气勘探 羌塘盆地 |
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| Historical evolution of Jurassic paleo-ocean as a reference for petroleum exploration of the Qiangtang basin in Tibetan plateau |
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| Abstract:The Qiangtang Basin is a significant target for petroleum exploration in the Tibetan Tethys domain of China. Currently, high-quality source rocks characterized by oil shales and dolomite reservoirs within carbonate platform facies have been revealed in Jurassic strata in this area. Drawing upon the latest advancements in global Jurassic paleo-oceanography and paleo-climatology research, this paper aims to analyze the mechanism of organic matter enrichment and sedimentary models of carbonate platforms during the Jurassic period from the perspective of global sea level fluctuations, changes in paleo-ocean temperatures, and positive and negative carbon isotope excursion. The objective is to provide valuable insights for predicting hydrocarbon-generating basins and delineating favorable exploration blocks within the Qiangtang Basin in Tibetan plateau. |
| keywords:Jurassic ancient ocean sea level ocean temperature carbon isotope oil and gas exploration Qiangtang Basin. |
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