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Macrofaunal burrowing enhances deep-sea carbonate lithification on the Southwest Indian Ridge
Xu, Hengchao1,2; Peng, Xiaotong1; Chen, Shun1; Li, Jiwei1; Dasgupta, Shamik1; Ta, Kaiwen1; Du, Mengran1
2018-10-30
Source PublicationBIOGEOSCIENCES
ISSN1726-4170
Volume15Issue:21Pages:6387-6397
Abstract

Deep-sea carbonates represent an important type of sedimentary rock due to their effect on the composition of the upper oceanic crust and their contribution to deep-sea geochemical cycles. However, the role of deep-sea macro-fauna in carbonate lithification remains poorly understood. A large lithified carbonate area, characterized by thriving benthic faunas and a tremendous amount of burrows, was discovered in 2008, blanketing the seafloor of the ultraslowly spreading Southwest Indian Ridge (SWIR). Benthic inhabitants - including echinoids, polychaetes, gastropods and crustaceans - are abundant in this carbonate lithified area. The burrowing features within these carbonate rocks, as well as the factors that may influence deep-sea carbonate lithification, were examined. We suggest that burrowing in these carbonate rocks enhances deep-sea carbonate lithification. We propose that active bioturbation may trigger the dissolution of the original calcite and thus accelerate deep-sea carbonate lithification on mid-ocean ridges. Macrofaunal burrowing provides a novel driving force for deep-sea carbonate lithification at the seafloor, illuminating the geological and biological importance of bioturbation in global deep-sea carbonate rocks.

DOI10.5194/bg-15-6387-2018
Indexed BySCI
Funding OrganizationNational Key Research and Development Plan of China ; Strategic Priority Research Program of the Chinese Academy of Science ; National Key Basic Research Program of China ; Natural Science Foundation of Hainan Province, China
Language英语
Funding ProjectNational Key Research and Development Plan of China[2016YFC0304900] ; Strategic Priority Research Program of the Chinese Academy of Science[XDB06020000] ; National Key Basic Research Program of China[2015CB755905] ; Natural Science Foundation of Hainan Province, China[20164175]
WOS KeywordMarine-sediments ; Benthic Foraminifera ; Species-diversity ; Ocean ; Bioturbation ; Diagenesis ; Neogene ; Preservation ; Reworking ; Thalassinidea
WOS Research AreaEnvironmental Sciences & Ecology ; Geology
WOS SubjectEcology ; Geosciences, Multidisciplinary
WOS IDWOS:000448694100002
PublisherCOPERNICUS GESELLSCHAFT MBH
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/6309
Collection深海科学研究部_深海地质与地球化学研究室
Corresponding AuthorPeng, Xiaotong
Affiliation1.Chinese Acad Sci, Inst Deep Sea Sci & Engn, Deep Sea Sci Div, Sanya 572000, Peoples R China
2.Tongji Univ, Sch Ocean & Earth Sci, Shanghai 200092, Peoples R China
Recommended Citation
GB/T 7714
Xu, Hengchao,Peng, Xiaotong,Chen, Shun,et al. Macrofaunal burrowing enhances deep-sea carbonate lithification on the Southwest Indian Ridge[J]. BIOGEOSCIENCES,2018,15(21):6387-6397.
APA Xu, Hengchao.,Peng, Xiaotong.,Chen, Shun.,Li, Jiwei.,Dasgupta, Shamik.,...&Du, Mengran.(2018).Macrofaunal burrowing enhances deep-sea carbonate lithification on the Southwest Indian Ridge.BIOGEOSCIENCES,15(21),6387-6397.
MLA Xu, Hengchao,et al."Macrofaunal burrowing enhances deep-sea carbonate lithification on the Southwest Indian Ridge".BIOGEOSCIENCES 15.21(2018):6387-6397.
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