吐鲁番盆地古近纪和新近纪的气候变化

留言板

尊敬的读者、作者、审稿人, 关于本刊的投稿、审稿、编辑和出版的任何问题, 您可以本页添加留言。我们将尽快给您答复。谢谢您的支持!

姓名

邮箱

手机号码

标题

留言内容

验证码

PALEOGENE AND NEOGENE PALEOCLIMATIC CHANGES IN THE TURPAN BASIN,NORTHWEST CHINA

1. Institute of Geomechanics, Chinese Academy of Geosciences, Beijing 100083;
2. China University of Geosciences, Beijing 100083;
3. Beijing Geological Institute, Beijing 100011;
4. Institute of Remote Sensing Application, Chinese Academy of Sciences, Beijing 100101

摘要: 新疆吐鲁番盆地的连木沁剖面古近系与新近系的沉积厚度约1770m,是研究吐鲁番盆地这一时段古气候的良好载体。通过对连木沁剖面沉积物中常量元素地球化学分析,表明吐鲁番盆地在晚古新世阶段和晚始新世阶段,气候炎热湿润,但后者波动比较频繁。在渐新世,气候温暖干旱。中新世的气候变化明显可分为两个阶段,早期气候炎热潮湿,而晚期阶段温暖干旱。到上新世,气候显著干旱化。
- 古气候 /
- 地球化学 /
- 古近纪 /
- 新近纪 /
- 吐鲁番盆地
Abstract: The Paleogene and Neogene at the Lamjin section in the Turpan basin, Xinjiang, have a sedimentary thickness of~1779 m.This section is a good carrier for the study of the paleoclimate in this period in the basin.Major element geochemical analysis of the sediments in the section indicates the following:in the late Paleocene, the climate was warm and wet;in the late Eocene, it was also warm, but dry and wet alternately;in the Oligocene, it was warm and dry;in the Miocene, the climate was divided into two phases, being warm and wet in the early phase and cold and dry in the late phase;in the Pliocene, it was obviously dry.
- paleoclimate /
- geochemistry /
- Paleogene /
- Neogene /
- Turpan basin