Quartz electron spin resonance signal intensity of Al and Ti–Li centers as a provenance indicator: An example from the Yangtze River Basin

Wei，Chuanyi1; Yin，Gongming1; Li，Yawei2; Liu，Chunru1; Li，Wenpeng3; Guo，Rujun2

2020-10-10

10.1016/j.quaint.2020.06.023

QUATERNARY INTERNATIONAL   影响因子和分区

1040-6182

1873-4553

The quartz electron spin resonance (ESR) signal intensity (SI) of the Al and Ti–Li centers in sediment samples collected from the mainstream and major tributaries of the Yangtze River Basin were measured to determine whether they can be used as fluvial sediment provenance indicators. The results show significant spatial variation in the ESR-SI between the bulk, coarse (200–355 μm), and fine (75–154 μm) grain-size fractions. For all three size fractions, the ESR-SIs of sediment from the mid-lower-reaches of the basin were higher than those of the upper reaches, demonstrating that the ESR-SI can be used to distinguish between quartz contributed by the upper and mid-lower reaches of the basin. Furthermore, the quartz ESR-SI of the major tributaries exhibited distinct spatial variation, according to the distribution of the type of bedrock. Thus, the quartz ESR-SI can be used to trace the provenance of fluvial sediments, even in large river systems. Additionally, the upper Yangtze River Basin contributed a large amount of material to the lower-mid mainstream, and even the fine fraction of sediment in the lower Yangtze River originated mainly from the upper Yangtze River Basin.

Electron spin resonance (ESR) Fluvial sediment Modern source to sink Quartz Yangtze river basin

SCI

英语

其他

National Nonprofit Fundamental Research Grant of China, Institute of Geology, China, Earthquake Administration[IGCEA2015][IGCEA1908] ; State Key Laboratory of Earthquake Dynamics, Institute of Geology, China Earthquake Administration[LED2016A01] ; National Natural Science Foundation of China[41772185]

Physical Geography ; Geology

Geography, Physical ; Geosciences, Multidisciplinary

WOS:000590284700002

PERGAMON-ELSEVIER SCIENCE LTD

GEOSCIENCES

2-s2.0-85088872574

Scopus

1.State Key Laboratory of Earthquake Dynamics,Institute of Geology,Beijing,China Earthquake Administration,100029,China
2.School of Earth Sciences,China University of Geosciences,Wuhan,430074,China
3.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Wei，Chuanyi,Yin，Gongming,Li，Yawei,等. Quartz electron spin resonance signal intensity of Al and Ti–Li centers as a provenance indicator: An example from the Yangtze River Basin[J]. QUATERNARY INTERNATIONAL,2020,562:76-84.

Wei，Chuanyi,Yin，Gongming,Li，Yawei,Liu，Chunru,Li，Wenpeng,&Guo，Rujun.(2020).Quartz electron spin resonance signal intensity of Al and Ti–Li centers as a provenance indicator: An example from the Yangtze River Basin.QUATERNARY INTERNATIONAL,562,76-84.

Wei，Chuanyi,et al."Quartz electron spin resonance signal intensity of Al and Ti–Li centers as a provenance indicator: An example from the Yangtze River Basin".QUATERNARY INTERNATIONAL 562(2020):76-84.