塔里木盆地库车组时代归属与古生态特征

塔里木盆地胜利1井库车组孢粉组合的发现，指示了孢粉组合Carpinipites（鹅耳枥粉属）－Salixipollenites（柳粉属）所在的库车组下部地质时代为中新世；孢粉组合Chenopodipollis（藜粉属）-Artemisiaepollenites（蒿粉属）－Ephedripites（麻黄粉属）所在库车组上部的地质时代为上新世。通过对库车组植被类型及气候类型进行研究得出：1）库车组早期植被类型为落叶阔叶林植被，属于北亚热带半湿润－湿润型气候。2）库车组晚期植被类型为蔬林草原－草原型植被，属于暖湿带干旱型气候。说明中国西部内陆型暖温带干旱气候始于库车组晚期。

THE TIME OWNERSHIP OF KUCHE MEMBER IN TARIM BASIN AND ITS ECOLOGIC CHARACTERISTIC

The discovery of the sporopollen complex of Kuche Member in Well Shengli 1 in Tarim Basin indicates that the lower Kuche Member containing the sporopollen complex Carpinipites Salixipollenites is Mesozene,and the upper Kuche Member containing the sporopollen complex Chenopodipollis Artemisiaepollenites Ephedripites is Pliocene.This paper studies the vegenation type and climate type of Kuche Member and draws a conclusion: 1) the earlier vegetation type of Kuche Member is deciduous broad leaf forest,being north subtropical half moist moist climate; 2) the later vegetation type of Kuche Member is grassland grassland vegetation and warm and drought climate,proving that the inland warm drought climate of the western part of China starts from the later period of Kuche Member.