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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。
In this paper, using the sporopollen analysis, the geologic age and paleoenvironment of the Lop Nur 4 well are discussed. It is pointed out that the climate during the deposition of sediments is dry and cool in the lower part, the upper part is warm and dry, the vegetation belongs to the desert type, and the sedimentary geological time is from Late Pleistocene to Holocene. Lop Nur is the largest lagoon in China and one of the driest in our country and in the world. In order to explore its causes and restore the natural appearance of the geo-epoch, the paper systematically studied the sporopollen in Luo 4 well, and discussed the results of sporopollen analysis.