| 新疆罗布泊罗4井的孢粉组合及其意义 |
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| 引用本文： | 严富华,叶永英,麦学舜. 新疆罗布泊罗4井的孢粉组合及其意义[J]. 地震地质, 1983, 5(4): 75 |
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| 作者姓名： | 严富华 叶永英 麦学舜 |
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| 作者单位： | 国家地震局地质研究所(严富华，叶永英)，国家地震局地质研究所(麦学舜) |
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| 摘 要： | 本文应用孢粉分析,对罗布泊罗4井沉积的地质时代和古环境进行了探讨。指出:沉积物堆积期间的气候下部干凉,上部温干,植被属荒漠类型,沉积物的地质时代为晚更新世至全新世。 罗布泊是我国最大的咸水湖,也是我国和世界上最为干燥的地区之一。为了探讨它的成因,恢复其地史时期的自然面貌,本文系统地研究了罗4井的孢粉,现就孢粉分析结果进行一些讨论
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| 关 键 词： | 孢粉组合 新疆罗布泊 灌木 孢粉分析 草本植物 乔木植物 古植被 花粉总数 地质时代 花粉含量 |
THE SPORO-POLLEN ASSEMBLAGE IN THE LUO 4 DRILLING OF LOP LAKE IN UYGUR AUTONOMUS REGION OF XINJIANG AND ITS SIGNIFICANCE |
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| Abstract: | The Luo 4 drilling is situated south east of the Lop Lake, Xinjiang. Many pollen grains of shrub and herb plant have been found in the sediments from this drilling. They mainly belong to Ephedra sp,, Artemisia sp.. Chenopodiaceae and Gramineae.On the basis of the results obtained it is believed that the vegetation from sediments of the Luo 4 drilling is mainly typical of a desert vegetation.The result of sporo-pollen analysis shows that there was a climatic fluctuation during the formation of the sediments in the Luo 4 drilling, of which the lower part (4m below) reflected a cool and dry climate and the upper part (4m above), a temperate and quite dry one.Based on sporo-pollen and 14C dating, the geological age of the Luo 4 drilling sediments can be inferred to be Late Pleistocene for the lower part and Holocene for the upper part |
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