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Article: Assessing the biogenicity and syngenicity of candidate bioalteration textures in pillow lavas of the ~2.52 Ga Wutai greenstone terrane of China

TitleAssessing the biogenicity and syngenicity of candidate bioalteration textures in pillow lavas of the ~2.52 Ga Wutai greenstone terrane of China
Authors
KeywordsArchean
Meta-volcanic glass
Microbial bioalteration
North China Craton
Sub-seafloor biosphere
Titanite
Issue Date2010
PublisherScience China Press. The Journal's web site is located at http://www.springerlink.com/content/1001-6538/
Citation
Chinese Science Bulletin, 2010, v. 55 n. 2, p. 188-199 How to Cite?
AbstractMicroorganisms that inhabit sub-seafloor lavas are capable of etching volcanic glass and creating micron-sized tunnels and pits. Mineralization of these bioalteration traces ensures that these textures survive deformation and transformation of the host glass to metamorphic minerals. The fossil record of such bioalteration textures extends far beyond volcanic glass from in-situ oceanic crust to include meta-volcanic glass from ophiolites and Precambrian greenstone belts. Investigation of petrographic thin section reported here from ~2.52 Ga tholeiitic pillow lavas from the Wutai Group of N. China found filamentous micro-textures. Laser Raman spectroscopy confirmed that these textures are mineralized by titanite. Moreover, the Wutai micro-textures are comparable in size, morphology and distribution to bioalteration textures from Archean greenschist facies pillow lavas. In-situ U-Pb dating of the titanite by laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) gives an age of 1.81 ± 0.12 Ga (2σ, n=22, 206Pb/238U weighted average). This provides a minimum age for the mineralization of these candidate bioalteration textures and corresponds to a regional metamorphic event. This also represents a minimum age estimate for the timing of bioalteration and is compatible with the existence of a Late Archean-Proterozoic sub-seafloor biosphere. © Science China Press and Springer-Verlag Berlin Heidelberg 2009.
Persistent Identifierhttp://hdl.handle.net/10722/123905
ISSN
2015 Impact Factor: 1.789
ISI Accession Number ID
Funding AgencyGrant Number
Norwegian Research Council
National Natural Science Foundation of China40730315
Hong Kong RGC GRFHKU7063/06P
7066/07P
7057/08P
Funding Information:

We thank L Nasdala for assistance in obtaining the Raman spectroscopy data shown in Figure 5 and N. Banerjee for insightful discussions concerning microbial bioalteration. We also thank two anonymous reviewers for their constructive comments. This work was supported by a Norwegian Research Council Project, National Natural Science Foundation of China (Grant No. 40730315) and Hong Kong RGC GRF (Grant Nos. HKU7063/06P, 7066/07P and 7057/08P).

References

 

DC FieldValueLanguage
dc.contributor.authorMcLoughlin, Nen_HK
dc.contributor.authorFliegel, DJen_HK
dc.contributor.authorFurnes, Hen_HK
dc.contributor.authorStaudigel, Hen_HK
dc.contributor.authorSimonetti, Aen_HK
dc.contributor.authorZhao, GCen_HK
dc.contributor.authorRobinson, PTen_HK
dc.date.accessioned2010-10-07T02:18:59Z-
dc.date.available2010-10-07T02:18:59Z-
dc.date.issued2010en_HK
dc.identifier.citationChinese Science Bulletin, 2010, v. 55 n. 2, p. 188-199en_HK
dc.identifier.issn1001-6538en_HK
dc.identifier.urihttp://hdl.handle.net/10722/123905-
dc.description.abstractMicroorganisms that inhabit sub-seafloor lavas are capable of etching volcanic glass and creating micron-sized tunnels and pits. Mineralization of these bioalteration traces ensures that these textures survive deformation and transformation of the host glass to metamorphic minerals. The fossil record of such bioalteration textures extends far beyond volcanic glass from in-situ oceanic crust to include meta-volcanic glass from ophiolites and Precambrian greenstone belts. Investigation of petrographic thin section reported here from ~2.52 Ga tholeiitic pillow lavas from the Wutai Group of N. China found filamentous micro-textures. Laser Raman spectroscopy confirmed that these textures are mineralized by titanite. Moreover, the Wutai micro-textures are comparable in size, morphology and distribution to bioalteration textures from Archean greenschist facies pillow lavas. In-situ U-Pb dating of the titanite by laser ablation multi-collector inductively coupled plasma mass spectrometry (LA-MC-ICP-MS) gives an age of 1.81 ± 0.12 Ga (2σ, n=22, 206Pb/238U weighted average). This provides a minimum age for the mineralization of these candidate bioalteration textures and corresponds to a regional metamorphic event. This also represents a minimum age estimate for the timing of bioalteration and is compatible with the existence of a Late Archean-Proterozoic sub-seafloor biosphere. © Science China Press and Springer-Verlag Berlin Heidelberg 2009.en_HK
dc.languageeng-
dc.publisherScience China Press. The Journal's web site is located at http://www.springerlink.com/content/1001-6538/en_HK
dc.relation.ispartofChinese Science Bulletinen_HK
dc.subjectArcheanen_HK
dc.subjectMeta-volcanic glassen_HK
dc.subjectMicrobial bioalterationen_HK
dc.subjectNorth China Cratonen_HK
dc.subjectSub-seafloor biosphereen_HK
dc.subjectTitaniteen_HK
dc.titleAssessing the biogenicity and syngenicity of candidate bioalteration textures in pillow lavas of the ~2.52 Ga Wutai greenstone terrane of Chinaen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=1001-6538&volume=55&issue=2&spage=188&epage=199&date=2010&atitle=Assessing+the+biogenicity+and+syngenicity+of+candidate+bioalteration+textures+in+pillow+lavas+of+the+~2.52+Ga+Wutai+greenstone+terrane+of+China-
dc.identifier.emailZhao, GC:gzhao@hkucc.hku.hken_HK
dc.identifier.authorityZhao, GC=rp00842en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1007/s11434-009-0448-0en_HK
dc.identifier.scopuseid_2-s2.0-75549091134en_HK
dc.identifier.hkuros175414-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-75549091134&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume55en_HK
dc.identifier.issue2en_HK
dc.identifier.spage188en_HK
dc.identifier.epage199en_HK
dc.identifier.isiWOS:000273947700014-
dc.publisher.placeChinaen_HK
dc.identifier.scopusauthoridMcLoughlin, N=8921475700en_HK
dc.identifier.scopusauthoridFliegel, DJ=8267905000en_HK
dc.identifier.scopusauthoridFurnes, H=7004696810en_HK
dc.identifier.scopusauthoridStaudigel, H=7003773594en_HK
dc.identifier.scopusauthoridSimonetti, A=7006372966en_HK
dc.identifier.scopusauthoridZhao, GC=7403296321en_HK
dc.identifier.scopusauthoridRobinson, PT=7403720506en_HK

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