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Constraints on the marine sediment provenance from single-grain detrital mineral: A review
Zhiqing LAI, Haiqing LIU, Lin LIN, Zongzhu HAN, Kun GUO
Journal of Tropical Oceanography    2019, 38 (1): 85-95.   DOI: 10.11978/2018036
Abstract   (501 HTML107 PDF(pc) (773KB)(921)  

Single-grained detrital minerals have been powerful tool for evaluating marine sedimentary provenance due to their advance for weakening the influence of rock types and alteration in the source, transportation and sedimentation on extracting provenance information. In recent years, zircon, garnet, feldspar, pyroxene, amphibole, monazite, and magnetite were used for sedimentary provenance discrimination in marine science. Single-grained mineral major elements and chronology were often utilized to accurately identify geological characteristics and location of source area; nonetheless, trace elements, isotopes and micro-textures were not sufficient So far, the evaluation of marine sedimentary provenance was fragmentary, which could be evaded by multi-mineral techniques. Further, in-depth studies should be conducted to trace the temporal-spatial evolution of source location through zircon monazite, mica and apatite geochronometry, to quantify erosion rates of source rocks and material flux from source and sink through a multi-mineral quantitative model. In this review, single-grained techniques of minerals in marine provenance research were summarized, and prospects are highlighted to carry out better studies on provenance discrimination of marine sediments.


Fig. 2 The TiO2-Al2O3-MgO genesis illustration of magnetite from surface sediments in the eastern South China Sea. After Yang et al (2004). (Ⅰ) Granite; (Ⅱ) basalt; (Ⅲ) gabbro; (Ⅳ) peridotite; (Ⅴ1) amphibolite; (Ⅴ2) diorite; (Ⅵ) kimberlite; (Ⅶ) hydrothermal and Ca-skarn; (Ⅷ) hydrothermal and Mg-skarn; (Ⅸ) metagenesis-hydrothermal superimposed; (Ⅹ) carbonate rock; (Ⅺ) transitional types
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图2   南海东部表层沉积物中磁铁矿TiO2-Al2O3-MgO 成因图解(据杨群慧 等, 2004)
Ⅰ. 花岗岩; Ⅱ. 玄武岩; Ⅲ. 辉长岩; Ⅳ. 橄榄岩; Ⅴ1. 角闪岩; Ⅴ2.. 闪长岩; Ⅵ. 金伯利岩; Ⅶ. 热液及钙矽卡岩; Ⅷ. 热液及镁矽卡岩; Ⅸ. 热液与沉积变质叠加; Ⅹ. 碳酸盐岩; Ⅺ. 过渡型
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