地理科学 ›› 2018, Vol. 38 ›› Issue (5): 818-826.doi: 10.13249/j.cnki.sgs.2018.05.020
• • 上一篇
王兆夺(), 黄春长(
), 杨红瑾, 庞奖励, 查小春, 周亚利
收稿日期:
2017-06-02
修回日期:
2017-11-04
出版日期:
2018-05-10
发布日期:
2018-05-10
作者简介:
作者简介:王兆夺(1984-), 男,甘肃会宁人, 博士研究生, 研究方向为资源开发与环境演变。E-mail:
基金资助:
Zhaoduo Wang(), Chunchang Huang(
), Hongjin Yang, Jiangli Pang, Xiaochun Zha, Yali Zhou
Received:
2017-06-02
Revised:
2017-11-04
Online:
2018-05-10
Published:
2018-05-10
Supported by:
摘要:
在宁夏长城塬完整的晚更新世-全新世黄土-古土壤剖面(长城塬剖面)进行高分辨率采样,对125个样品的粒度数据做了粒度端元分析,并对各端元组分含量在地层深度尺度上做了小波分析。结果认为:端元分析法可以把代
中图分类号:
王兆夺, 黄春长, 杨红瑾, 庞奖励, 查小春, 周亚利. 六盘山东麓晚更新世以来黄土粒度指示的物源特征及演变[J]. 地理科学, 2018, 38(5): 818-826.
Zhaoduo Wang, Chunchang Huang, Hongjin Yang, Jiangli Pang, Xiaochun Zha, Yali Zhou. Loess Provenance Characteristics and Evolution Indicated by Grain Size Since Late Pleistocene at the Eastern Foot of Liupan Mountains,China[J]. SCIENTIA GEOGRAPHICA SINICA, 2018, 38(5): 818-826.
表2
长城塬(CCY)剖面沉积物中各端元组分含量、磁化率以及地球化学指标"
深度 (cm) | EM1 (%) | EM2 (%) | EM3 (%) | EM4 (%) | 磁化率 (Xlf) | 地化指标 | 备注 | ||
---|---|---|---|---|---|---|---|---|---|
Rb/Sr | 淋溶系数 | 残积系数 | |||||||
0~20 | 39.28 | 7.70 | 6.88 | 46.13 | 69.6 | 0.48 | 1.04 | 1.32 | TS均值 |
20~54 | 29.68 | 14.72 | 5.44 | 50.16 | 71.6 | 0.47 | 1.07 | 1.29 | L0均值 |
54~150 | 17.80 | 47.73 | 9.63 | 24.85 | 79.0 | 0.51 | 1.04 | 1.34 | S0均值 |
150~190 | 17.14 | 25.18 | 39.89 | 17.80 | 57.1 | 0.44 | 1.21 | 1.13 | Lt均值 |
190~250 | 7.70 | 15.49 | 49.39 | 27.42 | 46.7 | 0.39 | 1.17 | 1.16 | L1均值 |
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