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The Role of Nanograins in Ductile Shear Zones: An Example from Hainan Island, Northern Margin of South China Sea
Wang, Y; Liu, HL; Zhang, XF; Zhu, RW; Li, YH
2018
Source PublicationNANOSCIENCE AND NANOTECHNOLOGY LETTERS
Volume10Issue:4Pages:512-519
AbstractNanograins are commonly observed in slip faults and ductile shear zones, and it is more and more widely accepted that nanograins can lubricate the fault, but the role of nanograins in the ductile shear zone is unclear. In order to study this problem, samples taken from the Xiaomei ductile shear zone, Hainan Island, were carefully observed with SEM and TEM. Our observations show that nanograins found in our samples can be divided into three types based on their morphologies: spherical nanograins (S-grain), rod-like nanograins (R-grain) and nanoclays. We find that nanograins are localized in the boundaries of the large minerals, and are likely to localize strain and decrease shear strength in the ductile shear zone. We think S-grains are mainly originated from milling process, and they can also come from solidification of melts and devitrification of amorphous materials. The mirror surfaces can decrease the friction coefficient, and the formation of layered materials is likely to represent the steady state creep.
Department[Wang, Yin; Liu, Hailing; Zhu, Rongwei; Li, Yuhan] Chinese Acad Sci, South China Sea Inst Oceanol, Key Lab Ocean & Marginal Sea Geol, Guangzhou 510301, Guangdong, Peoples R China; [Wang, Yin; Zhu, Rongwei; Li, Yuhan] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Zhang, Xuefen] East China Inst Technol, State Key Lab Breeding Base Nucl Resources & Envi, Nanchang 330013, Jiangxi, Peoples R China
Subject AreaScience & Technology - Other Topics ; Materials Science ; Physics
WOS KeywordNanograins ; Ductile Shear Zone ; Lubrication ; Hainan Island
Funding ProjectMSG
Document Type期刊论文
Identifierhttp://ir.scsio.ac.cn/handle/344004/17140
Collection中科院边缘海地质重点实验室
Recommended Citation
GB/T 7714
Wang, Y,Liu, HL,Zhang, XF,et al. The Role of Nanograins in Ductile Shear Zones: An Example from Hainan Island, Northern Margin of South China Sea[J]. NANOSCIENCE AND NANOTECHNOLOGY LETTERS,2018,10(4):512-519.
APA Wang, Y,Liu, HL,Zhang, XF,Zhu, RW,&Li, YH.(2018).The Role of Nanograins in Ductile Shear Zones: An Example from Hainan Island, Northern Margin of South China Sea.NANOSCIENCE AND NANOTECHNOLOGY LETTERS,10(4),512-519.
MLA Wang, Y,et al."The Role of Nanograins in Ductile Shear Zones: An Example from Hainan Island, Northern Margin of South China Sea".NANOSCIENCE AND NANOTECHNOLOGY LETTERS 10.4(2018):512-519.
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