Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1038/s41598-017-02400-0 |
A seven-million-year hornblende mineral record from the central Chinese Loess Plateau | |
He, Tong; Liu, Lianwen; Chen, Yang; Sheng, Xuefen; Ji, Junfeng | |
通讯作者 | He, Tong |
来源期刊 | SCIENTIFIC REPORTS
![]() |
ISSN | 2045-2322 |
出版年 | 2017 |
卷号 | 7 |
英文摘要 | Previous studies of the late Cenozoic erosion rate have yielded different views-long-term stable rates or a significant increase at climate transitions-leading to uncertainty concerning the hypothesized global erosion rate controlled by either tectonic uplift or climatic changes. Here, we present a seven-million-year hornblende mineral record along the Lingtai section of the Chinese Loess Plateau. By examining the spatial distribution of hornblende minerals in seven desert basins, which are potential loess source areas, we constructed a ratio of hornblende versus total heavy minerals to reflect past changes in physical/chemical weathering strength. Our results demonstrate that the ratio has generally increased since 7 Ma, with three significant shifts recorded at 2.6 Ma, 1.4 Ma and 0.5 Ma linked to the onset, continuation and expansion of the Northern Hemisphere glaciation, respectively. Given that chemical weathering during the diagenetic history produces a trend of smoothly increasing hornblende migrating upwards, the three shifts at these boundaries can be interpreted as changes in the bedrock erosion rate on the northern Tibetan Plateau, which may be related to tectonic uplift events and incision of the Yellow River. Evidence presented here supports the idea of coupling between climate change, tectonic uplift and regional erosion. |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000422715300001 |
WOS关键词 | NE TIBETAN PLATEAU ; RESOLUTION MAGNETO STRATIGRAPHY ; GLOBAL CLIMATE-CHANGE ; ASIAN WINTER MONSOON ; RED CLAY SEQUENCES ; YELLOW-RIVER ; ISOTOPIC CHARACTERISTICS ; QINGHAI PROVINCE ; MOUNTAIN-RANGES ; TECTONIC UPLIFT |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
来源机构 | 南京大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/202309 |
作者单位 | Nanjing Univ, Key Lab Surficial Geochem, Minist Educ, Sch Earth Sci & Engn, Nanjing 210026, Jiangsu, Peoples R China |
推荐引用方式 GB/T 7714 | He, Tong,Liu, Lianwen,Chen, Yang,et al. A seven-million-year hornblende mineral record from the central Chinese Loess Plateau[J]. 南京大学,2017,7. |
APA | He, Tong,Liu, Lianwen,Chen, Yang,Sheng, Xuefen,&Ji, Junfeng.(2017).A seven-million-year hornblende mineral record from the central Chinese Loess Plateau.SCIENTIFIC REPORTS,7. |
MLA | He, Tong,et al."A seven-million-year hornblende mineral record from the central Chinese Loess Plateau".SCIENTIFIC REPORTS 7(2017). |
条目包含的文件 | 条目无相关文件。 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。