Loess magnetic susceptibility flux: A new proxy of East Asian monsoon precipitation

Kong Xianghui; Zhou Weijian; Beck J. Warren; Xian Feng; Qiang Xiaoke; Ao Hong; Wu Zhenkun; An Zhisheng

首页> 外文期刊>Journal of Asian earth sciences >Loess magnetic susceptibility flux: A new proxy of East Asian monsoon precipitation

【24h】

Loess magnetic susceptibility flux: A new proxy of East Asian monsoon precipitation

机译：黄土磁性敏感性通量：新代理的东亚季风降水

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相似文献
相关主题

摘要

Magnetic susceptibility (chi) of loess-paleosol sequences on the Chinese Loess Plateau (CLP) has been widely used as a proxy for East Asian summer monsoon (EASM) precipitation variability. Such records typically show strong climate forcing in the-100 ka orbital eccentricity band, but exhibit weak precessional (-23 ka) forcing relative to that seen in oxygen isotopes from marine sediments. This is puzzling as monsoons should be highly sensitive to precession variations. We assert that this lack of precessional signal is because chi is a concentration, which is strongly affected by the dilution effect of dust sedimentation rate superimposed on rainfall rate. chi-flux on the other hand corrects for dust accumulation rate and bulk density effects to better reveal pedogenic mineral ingrowth rates associated with rainfall. In this study, we compare three 600 ka records of loess pedogenic chi-flux from the CLP with Chinese speleothem delta O-18 records and a 550 ka loess-paleosol 10Be flux record from Baoji which has also been used as a monsoon precipitation proxy record. Pedogenic chi-flux exhibits clear signals of orbital precession, whereas chi (-concentration) does not.

机译：中国黄土高原（CLP）的黄土 - 古溶胶序列（CLP）的磁性敏感性已被广泛应用于东亚夏季季风（EASM）降水变异的代理。这些记录通常在100ka轨道偏心频带中显示出强烈的气候迫使，但表现出弱生物化（-23ka）相对于来自海洋沉积物的氧同位素中所见的弱预算（-23ka）。这是令人费解的，因为季风应该对预测变化非常敏感。我们断言，这种缺乏的生态信号是因为Chi是一种浓度，这受到叠加在降雨率上的粉尘沉积率的稀释效果的浓度。另一方面，Chi-Flux校正了粉尘积累率和散装密度效应，以更好地揭示与降雨相关的基础矿物传统速率。在这项研究中，我们比较来自中国Speleothem Delta O-18 Records的CLP的三个600 kA记录，Baoji的550 Ka黄土古醇10be Flux记录，也被用作季风降水代理记录。 PeTogenic Chi-Flux呈现出轨道进程的明显信号，而Chi（ - 复合）则不是。

著录项

来源
《Journal of Asian earth sciences》 |2020年第1期|104489.1-104489.6|共6页
作者
Kong Xianghui; Zhou Weijian; Beck J. Warren; Xian Feng; Qiang Xiaoke; Ao Hong; Wu Zhenkun; An Zhisheng;
展开▼
作者单位

Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Peoples R China|Chinese Acad Sci Ctr Excellence Quaternary Sci & Global Change Xian 710061 Peoples R China|Xian AMS Ctr Shaanxi Key Lab Accelerator Mass Spectrometry & A Xian 710061 Peoples R China;

Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Peoples R China|Chinese Acad Sci Ctr Excellence Quaternary Sci & Global Change Xian 710061 Peoples R China|Xian AMS Ctr Shaanxi Key Lab Accelerator Mass Spectrometry & A Xian 710061 Peoples R China;

Univ Arizona Dept Phys Tucson AZ 85721 USA|Univ Arizona Dept Geosci Tucson AZ 85721 USA;

Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Peoples R China|Xian AMS Ctr Shaanxi Key Lab Accelerator Mass Spectrometry & A Xian 710061 Peoples R China;

Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Peoples R China|Chinese Acad Sci Ctr Excellence Quaternary Sci & Global Change Xian 710061 Peoples R China|Qingdao Natl Lab Marine Sci & Technol Open Studio Ocean Continental Climate & Environm Qingdao 266061 Peoples R China;

Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Peoples R China|Chinese Acad Sci Ctr Excellence Quaternary Sci & Global Change Xian 710061 Peoples R China;

Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Peoples R China|Xian AMS Ctr Shaanxi Key Lab Accelerator Mass Spectrometry & A Xian 710061 Peoples R China;

Chinese Acad Sci Inst Earth Environm State Key Lab Loess & Quaternary Geol Xian 710061 Peoples R China|Chinese Acad Sci Ctr Excellence Quaternary Sci & Global Change Xian 710061 Peoples R China|Beijing Normal Univ Interdisciplinary Res Ctr Earth Sci Frontier Beijing 100875 Peoples R China|Xi An Jiao Tong Univ Sch Human Settlements & Civil Engn Xian 710049 Peoples R China;

展开▼
收录信息
原文格式 PDF
正文语种 eng
中图分类
关键词
Pedogenic magnetic susceptibility flux; Chinese loess; Monsoon precipitation proxy; Orbital forcing;

机译：Pefovencic磁化率助焊剂;中国黄土;季风降水代理;轨道强迫;

相似文献

外文文献
中文文献
专利

1. Mega-pulses and megacycles in East Asian monsoon variations recorded in Chinese loess-red clay magnetic susceptibility [J] . Xiong SF, Jiang WY, Liu TS Geophysical Research Letters . 2006,第18期

机译：中国黄土-红黏土磁化率记录的东亚季风变化中的大脉冲和大周期
2. δ13C Values of loess total carbonate: A sensitive proxy for Asian summer monsoon in arid northwestern margin of the Chinese loess plateau [J] . Liu W., Yang H., Sun Y., Chemical geology . 2011,第3a4期

机译：黄土总碳酸盐的δ13C值：黄土高原干旱西北缘亚洲夏季风的敏感代表
3. Asian Monsoon variation over the late Neogene-early Quaternary recorded by Anisotropy of Magnetic Susceptibility (AMS) from Chinese loess [J] . Xie Xingjun, Xian Feng, Wu Zhenkun, Quaternary International . 2016,第Apra18期

机译：黄土的磁化率各向异性（AMS）记录新近晚期-第四纪晚期的亚洲季风变化
4. Verifying a New Proxy of the Holocene East Asian Winter Monsoon-Grain Size of Mud on the Inner Shelf of the East China Sea [C] . Xiao Shangbin, Tian Fang, Zhang Guodong, . 2007

机译：验证东海内层全新世东亚冬季季风粒度的新替代物
5. A multi-proxy study of planktonic foraminifera to identify past millenial-scale climate variability in the East Asian Monsoon and the Western Pacific Warm Pool (Globigerinoides ruber, Globigerinoides sacculifer, Neogloboquadrina dutertrei, Globorotalia crassaformis). [D] . Dannenmann, Stephanie. 2001

机译：一项关于浮游有孔虫的多代理研究，旨在确定东亚季风和西太平洋暖池（千球藻，球果球藻，新球藻dtertrei，球孢藻）的过去千年尺度的气候变化。
6. Clay mineralogical and geochemical proxies of the East Asian summer monsoon evolution in the South China Sea during Late Quaternary [O] . Quan Chen, Zhifei Liu, Catherine Kissel -1

机译：晚第四纪南海东亚夏季风演化的粘土矿物学和地球化学代理
7. Comparison of East Asian Monsoon Proxies from the Central China Loess Plateau and Lake Biwa [O] . JL Xiao 1998

机译：中国中部黄土高原和琵琶湖的东亚季风代理比较

Loess magnetic susceptibility flux: A new proxy of East Asian monsoon precipitation

摘要

著录项

相似文献

相关主题

期刊订阅