化学蚀变指数指示古气候变化的适用性探讨

赵占仑; 温小浩; 汤连生; 李保生; 牛东风; 孟洁; 杨庆江

doi:10.14027/j.issn.1000-0550.2018.026

ISSN 1000-0550 CN 62-1038/P

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化学蚀变指数指示古气候变化的适用性探讨

赵占仑, 温小浩, 汤连生, 李保生, 牛东风, 孟洁, 杨庆江

文章导航 > 沉积学报 > 2018 > 36(2): 343-353

赵占仑, 温小浩, 汤连生, 李保生, 牛东风, 孟洁, 杨庆江. 化学蚀变指数指示古气候变化的适用性探讨[J]. 沉积学报, 2018, 36(2): 343-353. doi: 10.14027/j.issn.1000-0550.2018.026

引用本文:

ZHAO ZhanLun, WEN Xiaohao, TANG LianSheng, LI BaoSheng, NIU DongFeng, MENG Jie, YANG QingJiang. Applicability of Chemical Alteration Index to Indication of Paleoclimate Change by Different Sedimentary Facies[J]. Acta Sedimentologica Sinica, 2018, 36(2): 343-353. doi: 10.14027/j.issn.1000-0550.2018.026

Citation:

ZHAO ZhanLun, WEN Xiaohao, TANG LianSheng, LI BaoSheng, NIU DongFeng, MENG Jie, YANG QingJiang. Applicability of Chemical Alteration Index to Indication of Paleoclimate Change by Different Sedimentary Facies[J]. Acta Sedimentologica Sinica, 2018, 36(2): 343-353. doi: 10.14027/j.issn.1000-0550.2018.026

引用本文:

Citation:

ZHAO ZhanLun, WEN Xiaohao, TANG LianSheng, LI BaoSheng, NIU DongFeng, MENG Jie, YANG QingJiang. Applicability of Chemical Alteration Index to Indication of Paleoclimate Change by Different Sedimentary Facies[J]. Acta Sedimentologica Sinica, 2018, 36(2): 343-353. doi: 10.14027/j.issn.1000-0550.2018.026

化学蚀变指数指示古气候变化的适用性探讨

doi: 10.14027/j.issn.1000-0550.2018.026

1.
中山大学地球科学与工程学院, 广东珠海 519082;
2.
广东省地质过程与矿产资源探查重点实验室, 广州 510275;
3.
华南师范大学地理科学学院, 广州 510631;
4.
中国科学院地球环境研究所黄土与第四纪地质国家重点实验室, 西安 710075

基金项目: 国家自然科学基金项目（41572277）；广东省自然科学基金项目（2015A030313118）

详细信息

作者简介:
赵占仑,男,1990年出生,博士研究生,大地构造学,E-mail:928002815@qq.com

通讯作者:
汤连生,教授,E-mail:eestls@mail.sysu.edu.cn

中图分类号: P532

计量

文章访问数: 691
HTML全文浏览量: 30
PDF下载量: 882
被引次数: 0

Applicability of Chemical Alteration Index to Indication of Paleoclimate Change by Different Sedimentary Facies

1.
School of Earth Sciences and Engineering, Sun Yat-set(Zhongshan) University, Zhuhai, Guangdong 519082, China;
2.
Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes, Guangzhou 510275, China;
3.
School of Geographical Science, South China Normal University, Guangzhou 510631, China;
4.
State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China

Funds: National Natural Science Foundation of China, No.41572277; Natural Science Foundation of Guangdong Province, China, No.2015A030313118

摘要

摘要: 腾格里沙漠南缘土门剖面末次冰消期层段由3层沙丘砂、2层湖相沉积、2层古土壤和5层黄土构成，对各沉积相进行了年代学研究与主量元素含量测试，确定该层段为末次冰消期，计算了各沉积相CIA指数，结果显示CIA指数由大到小依次为沙丘砂 > 黄土 > 古土壤 > 湖相沉积。通过对比，发现CIA指示的各沉积相化学风化作用强度（气候环境）与已有粒度成分指示的该时期气候变化研究结论相矛盾，通过对该矛盾现象的深入研究和探讨，得到以下认识：1）研究层段的古土壤、湖相沉积、黄土的沉积物质可能来源于土门剖面东南一侧的黄土高原，沙丘砂沉积物质受北侧的腾格里沙漠沙丘砂强烈影响，各沉积相的物源化学元素存在差别使得不同沉积相CIA指数的对比存在先天性不足；2）土门剖面所处的低洼地形会产生汇水作用，使易迁移的钙、钠、钾等元素随降水迁移而汇聚于此，对不同沉积相的CIA值产生干扰，导致CIA指数偏小，其不能反映真实化学风化作用强度；3）应用CIA指数作为古气候变化的替代指标需综合考虑沉积相物源差异及沉积环境的影响，CIA指数用于指示古气候变化存在一定的适用性问题。
- 土门剖面 /
- 主量元素 /
- CIA指数 /
- 物源 /
- 古气候变化
Abstract: In the southern part of the Tengger Desert, the last glacial dissolution stratum of its Tumen profile consists of three layers of dune sand, two layers of lacustrine sediments, two layers of paleosol and five layers of sand loess. Through the chronological study of the sedimentary facies and testing of the main elements, the results define the stratum attributes to the last glacial dissolution stratum; once all the CIAs calculated, the order of CIA index appears as sand dune > loess > paleosoil > lacustrine sediments from the largest to the smallest. By contrast, it is found that the weathering intensity (climatic environment) of all the sedimentary facies indicated by CIA is in contradiction with the research conclusion that the granularity indicates the climate change in this period. With a deep study and discussion of the contradiction phenomenon, the following conclusions are obtained:1) The sedimentary material of the paleosol, lacustrine sediments and loess may originate from the Loess Plateau, on the southeast side of the soil door section. The provenance of sand dune is strongly influenced by the dune sand from the Tengger Desert in the north. The differences of the chemical elements of sedimentary facies make the comparison between the CIA index of different sedimentary facies congenitally deficient. 2) The low-lying topography where the soil door section locates at will produce water-catching effect, so that the migratory elements such as calcium, sodium, potassium and others will migrate with the precipitation of water to the surface of the sedimentary facies and the CIA indexes of different sedimentary facies are influenced to be too small to reflect the true weathering intensity. 3) The application of CIA indexes as a surrogate indicator of palaeoclimate change shall comprehensively consider the sedimentary facies provenance differences and the effect of the sedimentary environment; hence, the CIA index has limited application in indicating the paleoclimatic change.
- Tumen section /
- main elements /
- CIA index /
- provenance /
- paleoclimatic change

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[1]	谢巍, 李一凡, 刘旺威. 塔里木盆地东北缘下寒武统泥页岩古气候与物源背景研究 . 沉积学报, 2023, 41(4): 1240-1256. doi: 10.14027/j.issn.1000-0550.2021.159
[2]	郭爱鹏, 毛龙江, 莫多闻, 张兴国, 邹春辉, 李烨, 吴又进. 长沙铜官窑遗址剖面地球化学元素特征与物源变化 . 沉积学报, 2023, 41(3): 735-747. doi: 10.14027/j.issn.1000-0550.2021.128
[3]	肖春晖, 王永红, 林间. 近1 Ma以来帕里西维拉海盆沉积物物源和古气候:粒度和黏土矿物特征的指示 . 沉积学报, 2022, 40(2): 508-524. doi: 10.14027/j.issn.1000-0550.2020.091
[4]	薛红盼, 曾方明. 青海湖东岸全新世风成沉积地球化学特征及其古气候意义 . 沉积学报, 2021, 39(5): 1198-1207. doi: 10.14027/j.issn.1000-0550.2020.066
[5]	郭望, 张卫刚, 李玉宏, 雷迅, 李永红, 陈刚, 张云鹏, 陈磊, 徐学敏. 柴北缘大煤沟组七段页岩地球化学特征——对中侏罗世晚期物源及风化作用的指示及意义 . 沉积学报, 2020, 38(3): 676-686. doi: 10.14027/j.issn.1000-0550.2019.103
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[7]	梁飞, 黄文辉, 牛君. 鄂尔多斯盆地西南缘二叠系山西组山1段-下石盒子组盒8段物源分析 . 沉积学报, 2018, 36(1): 142-153. doi: 10.3969/j.issn.1000-0550.2018.016
[8]	王玥铭, 窦衍光, 李军, 徐景平, 蔡峰, 温珍河, 赵京涛, 陈晓辉. 16 ka以来冲绳海槽中南部沉积物物源演化及其对古气候的响应 . 沉积学报, 2018, 36(6): 1157-1168. doi: 10.14027/j.issn.1000-0550.2018.102
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[14]	操应长. 特征元素比值在沉积物物源分析中的应用——以东营凹陷王58井区沙四上亚段研究为例 . 沉积学报, 2007, 25(2): 230-238.
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化学蚀变指数指示古气候变化的适用性探讨

doi: 10.14027/j.issn.1000-0550.2018.026

1. 中山大学地球科学与工程学院, 广东珠海 519082;

2. 广东省地质过程与矿产资源探查重点实验室, 广州 510275;

3. 华南师范大学地理科学学院, 广州 510631;

4. 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室, 西安 710075

基金项目: 国家自然科学基金项目（41572277）；广东省自然科学基金项目（2015A030313118）

作者简介:
赵占仑,男,1990年出生,博士研究生,大地构造学,E-mail:928002815@qq.com

通讯作者: 汤连生,教授,E-mail:eestls@mail.sysu.edu.cn

收稿日期: 2017-01-06
修回日期: 2017-04-05
刊出日期: 2018-04-10

中图分类号: P532

关键词:

土门剖面 /

主量元素 /

CIA指数 /

物源 /

古气候变化

摘要: 腾格里沙漠南缘土门剖面末次冰消期层段由3层沙丘砂、2层湖相沉积、2层古土壤和5层黄土构成，对各沉积相进行了年代学研究与主量元素含量测试，确定该层段为末次冰消期，计算了各沉积相CIA指数，结果显示CIA指数由大到小依次为沙丘砂 > 黄土 > 古土壤 > 湖相沉积。通过对比，发现CIA指示的各沉积相化学风化作用强度（气候环境）与已有粒度成分指示的该时期气候变化研究结论相矛盾，通过对该矛盾现象的深入研究和探讨，得到以下认识：1）研究层段的古土壤、湖相沉积、黄土的沉积物质可能来源于土门剖面东南一侧的黄土高原，沙丘砂沉积物质受北侧的腾格里沙漠沙丘砂强烈影响，各沉积相的物源化学元素存在差别使得不同沉积相CIA指数的对比存在先天性不足；2）土门剖面所处的低洼地形会产生汇水作用，使易迁移的钙、钠、钾等元素随降水迁移而汇聚于此，对不同沉积相的CIA值产生干扰，导致CIA指数偏小，其不能反映真实化学风化作用强度；3）应用CIA指数作为古气候变化的替代指标需综合考虑沉积相物源差异及沉积环境的影响，CIA指数用于指示古气候变化存在一定的适用性问题。

English Abstract

Applicability of Chemical Alteration Index to Indication of Paleoclimate Change by Different Sedimentary Facies

1. School of Earth Sciences and Engineering, Sun Yat-set(Zhongshan) University, Zhuhai, Guangdong 519082, China;

2. Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes, Guangzhou 510275, China;

3. School of Geographical Science, South China Normal University, Guangzhou 510631, China;

4. State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an 710075, China

Funds: National Natural Science Foundation of China, No.41572277; Natural Science Foundation of Guangdong Province, China, No.2015A030313118

Received Date: 2017-01-06
Rev Recd Date: 2017-04-05
Publish Date: 2018-04-10

Keywords:

Abstract: In the southern part of the Tengger Desert, the last glacial dissolution stratum of its Tumen profile consists of three layers of dune sand, two layers of lacustrine sediments, two layers of paleosol and five layers of sand loess. Through the chronological study of the sedimentary facies and testing of the main elements, the results define the stratum attributes to the last glacial dissolution stratum; once all the CIAs calculated, the order of CIA index appears as sand dune > loess > paleosoil > lacustrine sediments from the largest to the smallest. By contrast, it is found that the weathering intensity (climatic environment) of all the sedimentary facies indicated by CIA is in contradiction with the research conclusion that the granularity indicates the climate change in this period. With a deep study and discussion of the contradiction phenomenon, the following conclusions are obtained:1) The sedimentary material of the paleosol, lacustrine sediments and loess may originate from the Loess Plateau, on the southeast side of the soil door section. The provenance of sand dune is strongly influenced by the dune sand from the Tengger Desert in the north. The differences of the chemical elements of sedimentary facies make the comparison between the CIA index of different sedimentary facies congenitally deficient. 2) The low-lying topography where the soil door section locates at will produce water-catching effect, so that the migratory elements such as calcium, sodium, potassium and others will migrate with the precipitation of water to the surface of the sedimentary facies and the CIA indexes of different sedimentary facies are influenced to be too small to reflect the true weathering intensity. 3) The application of CIA indexes as a surrogate indicator of palaeoclimate change shall comprehensively consider the sedimentary facies provenance differences and the effect of the sedimentary environment; hence, the CIA index has limited application in indicating the paleoclimatic change.

引用本文:

Citation:

ZHAO ZhanLun, WEN Xiaohao, TANG LianSheng, LI BaoSheng, NIU DongFeng, MENG Jie, YANG QingJiang. Applicability of Chemical Alteration Index to Indication of Paleoclimate Change by Different Sedimentary Facies[J]. Acta Sedimentologica Sinica, 2018, 36(2): 343-353. doi: 10.14027/j.issn.1000-0550.2018.026

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化学蚀变指数指示古气候变化的适用性探讨

doi: 10.14027/j.issn.1000-0550.2018.026

作者简介:
赵占仑,男,1990年出生,博士研究生,大地构造学,E-mail:928002815@qq.com

通讯作者:
汤连生,教授,E-mail:eestls@mail.sysu.edu.cn

计量

Applicability of Chemical Alteration Index to Indication of Paleoclimate Change by Different Sedimentary Facies

计量

目录

化学蚀变指数指示古气候变化的适用性探讨

doi: 10.14027/j.issn.1000-0550.2018.026

1. 中山大学地球科学与工程学院, 广东珠海 519082;

2. 广东省地质过程与矿产资源探查重点实验室, 广州 510275;

3. 华南师范大学地理科学学院, 广州 510631;

4. 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室, 西安 710075

作者简介:
赵占仑,男,1990年出生,博士研究生,大地构造学,E-mail:928002815@qq.com

通讯作者: 汤连生,教授,E-mail:eestls@mail.sysu.edu.cn

English Abstract

Applicability of Chemical Alteration Index to Indication of Paleoclimate Change by Different Sedimentary Facies

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化学蚀变指数指示古气候变化的适用性探讨

doi: 10.14027/j.issn.1000-0550.2018.026

作者简介: 赵占仑,男,1990年出生,博士研究生,大地构造学,E-mail:928002815@qq.com

通讯作者: 汤连生,教授,E-mail:eestls@mail.sysu.edu.cn

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出版历程

Applicability of Chemical Alteration Index to Indication of Paleoclimate Change by Different Sedimentary Facies

计量

出版历程

目录

化学蚀变指数指示古气候变化的适用性探讨

doi: 10.14027/j.issn.1000-0550.2018.026

1. 中山大学地球科学与工程学院, 广东珠海 519082; 2. 广东省地质过程与矿产资源探查重点实验室, 广州 510275; 3. 华南师范大学地理科学学院, 广州 510631; 4. 中国科学院地球环境研究所黄土与第四纪地质国家重点实验室, 西安 710075

作者简介: 赵占仑,男,1990年出生,博士研究生,大地构造学,E-mail:928002815@qq.com

通讯作者: 汤连生,教授,E-mail:eestls@mail.sysu.edu.cn

English Abstract

Applicability of Chemical Alteration Index to Indication of Paleoclimate Change by Different Sedimentary Facies

全文HTML

目录

友情链接

期刊在线

联系我们

作者简介:
赵占仑,男,1990年出生,博士研究生,大地构造学,E-mail:928002815@qq.com

通讯作者:
汤连生,教授,E-mail:eestls@mail.sysu.edu.cn

作者简介:
赵占仑,男,1990年出生,博士研究生,大地构造学,E-mail:928002815@qq.com