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Characteristic grain-size component - A useful process-related parameter for grain-size analysis of lacustrine clastics?
Lu, Y (Lu, Yin)1,2,6; Fang, XM (Fang, Xiaomin)1,2; Friedrich, O (Friedrich, Oliver)3; Song, CH (Song, Chunhui)4,5
Source PublicationQUATERNARY INTERNATIONAL
2018-06-20
Volume479Issue:特刊 SIPages:90-99
DOI10.1016/j.quaint.2017.07.027
AbstractLacustrine sediments are important archives for paleoclimate reconstructions. The application of grainsize analysis as palaeoclimatic proxy in lacustrine clastics is valuable but also difficult because the typical polymodal grain-size distribution in these clastics. To better understand the grain-size distribution of lacustrine clastics and to promote the application of grain size in paleoenvironmental interpretation, this study investigates lacustrine clastics from northern and southern China. The grain-size distribution of these sediments was decomposed by log-normal distribution function fitting method. Based on the results, and drawing upon the concept of paleomagnetic demagnetization and " Characteristic Remnant Magnetization" from paleomagnetism, a conceptual system has been established and defined for grainsize distribution analysis. The system is composed of four components: (I) Characteristic Grain Size Component (ChGSC), (II) Affiliated Grain Size Component, (III) Meaningful Grain Size Component, and (IV) Combination Feature of Grain Size Components (CFGSCs). Based on the proposed system, ChGSC and CFGSCs were used to detect the grain-size distribution of clastics from the different lake zones investigated. Our results show the number, modal size, and percentage of ChGSC(s) in grain-size distributions are sensitive to changes in the lacustrine environment. The ChGSC(s) mirrors the dominant depositional process and hydrodynamic conditions. The modal size of ChGSC(s) is more sensitive to hydrological conditions than the widely used mean grain-size approach. Thus, the ChGSC(s) provide a useful processrelated parameter for paleoenvironmental reconstructions. To test this promising application, we applied this approach to a deep drill core from the Qaidam Basin in the northeastern Tibetan Plateau. (C) 2017 Elsevier Ltd and INQUA. All rights reserved.
WOS IDWOS:000433225600012
Language英语
Indexed BySCIE
KeywordNE TIBETAN PLATEAU WESTERN QAIDAM BASIN LAKE DONGGI CONA CLIMATE-CHANGE DEPOSITIONAL PROCESSES TRANSPORT PROCESSES LEVEL STATUS SEDIMENTS RECORD MONSOON
WOS Research AreaPhysical Geography ; Geology
WOS SubjectGeography, Physical ; Geosciences, Multidisciplinary
Cooperation Status国际
ISSN1040-6182
Department大陆碰撞与高原隆升重点实验室
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/8623
Collection图书馆
Affiliation1.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Inst Tibetan Plateau Res, Beijing 100101, Peoples R China;
2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Continental Collis & Plateau Uplift, Beijing 100101, Peoples R China;
3.Heidelberg Univ, Inst Earth Sci, Sedimentol & Marine Paleoenvironm Dynam Grp, Neuenheimer Feld 234-236, D-69120 Heidelberg, Germany;
4.Lanzhou Univ, Sch Earth Sci, Lanzhou 730000, Gansu, Peoples R China;
5.Lanzhou Univ, Key Lab Western Chinas Mineral Resources Gansu Pr, Lanzhou 730000, Gansu, Peoples R China;
6.Heidelberg Univ, Inst Earth Sci, Sedimentol & Marine Paleoenvironm Dynam Grp, Heidelberg, Germany.
Recommended Citation
GB/T 7714
Lu, Y ,Fang, XM ,Friedrich, O ,et al. Characteristic grain-size component - A useful process-related parameter for grain-size analysis of lacustrine clastics?[J]. QUATERNARY INTERNATIONAL,2018,479(特刊 SI):90-99.
APA Lu, Y ,Fang, XM ,Friedrich, O ,&Song, CH .(2018).Characteristic grain-size component - A useful process-related parameter for grain-size analysis of lacustrine clastics?.QUATERNARY INTERNATIONAL,479(特刊 SI),90-99.
MLA Lu, Y ,et al."Characteristic grain-size component - A useful process-related parameter for grain-size analysis of lacustrine clastics?".QUATERNARY INTERNATIONAL 479.特刊 SI(2018):90-99.
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