柴达木盆地总有机碳、碳酸盐、粒度等特征及其环境意义--以三湖地区气钾一井残丘剖面为例

来源 :2015全国沉积学大会 | 被引量 : 0次 | 上传用户：alicial

【摘要】

：

通过对青海柴达木盆地三湖坳陷盐湖构造剖面沉积物中磁化率、总有机碳、碳酸盐，古地磁，矿物XRD分析，粒度等的测试，综合分析影响因素与环境气候的关系的得出：在其古气候演化过程中该剖面主要经历了中更新世距今0.73Ma左右的3个阶段0～430cm、430～1018cm、1018～1034cm即干旱-潮湿-干旱的气候波动过程，经现场剖面取样和测量发现总体上底部为含砂砾石层的河流三角洲相，上部为纹层较发育的

【作者】

：

李玉辉赵小庆郑绵平王海雷杜少荣

【机构】

：

中国矿业大学(北京)地球科学与测绘工程学院,北京100083;中国地质科学院矿产资源研究所国土资源部盐湖资源与环境重点实验室,北京 100037

【出处】

：

2015全国沉积学大会

【发表日期】

：

2015年5期

【关键词】

：

总有机碳碳酸盐粒度环境演变三湖地区

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柴达木盆地总有机碳、碳酸盐、粒度等特征及其环境意义--以三湖地区气钾一井残丘剖面为例

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