Organic matter binding detrital grains contributing to ooid formation and small shelly fossil preservation, a case from the middle Cambrian, southern North China.
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| Title: | Organic matter binding detrital grains contributing to ooid formation and small shelly fossil preservation, a case from the middle Cambrian, southern North China. |
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| Authors: | Hu, Yazhou1,2 (AUTHOR), Topper, Timothy P.1,2 (AUTHOR), Zhou, Junming3 (AUTHOR), Wang, Zhao1 (AUTHOR), Pan, Bing4 (AUTHOR), Liang, Yue1 (AUTHOR), Liu, Fan1 (AUTHOR), Zhang, Zhifei1 (AUTHOR) elizf@nwu.edu.cn |
| Source: | Sedimentary Geology. Oct2024, Vol. 472, pN.PAG-N.PAG. 1p. |
| Subjects: | Fossils, Biofilms, Organic compounds, Surface coatings, Carbonates |
| Abstract: | Siliciclastic grains, characterized by concentrated Al, Si, K and other elements, are typical components of ooids, but their distribution and contribution to ooid formation are uncertain. Coatings have played a significant role in small shelly fossil preservation in early Cambrian phosphate or phosphatic carbonates. However, the relationship between ooid construction and the preservation of small shelly fossils has not been fully elucidated. Herein, we report well-developed flaggy ooids containing siliciclastic grains from a middle Cambrian carbonate–siliciclastic depositional system in North China. We observe that ooids consist of multiple layers of dark and light laminae. The dark laminae with a high organic content and flexible appearance are interpreted as biofilms. The distribution of detrital grains is closely coupled with these dark laminae and the filamentous structures around fossil shells, which indicates that the detrital particles are bound by the biofilms or filamentous structures. The high occurrence and compacted nature of siliciclastic particles observed in these ooids reveal that detrital grains could be the main contributing factor in ooid formation in the middle Cambrian Longwanggou section. Those flaggy ooids composed of clay-size detrital grains finely mimic the shell morphology and microstructure, providing another important window for the preservation of small shelly fossils in the Cambrian. [ABSTRACT FROM AUTHOR] |
| Copyright of Sedimentary Geology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 180493701 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Organic matter binding detrital grains contributing to ooid formation and small shelly fossil preservation, a case from the middle Cambrian, southern North China. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Hu%2C+Yazhou%22">Hu, Yazhou</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Topper%2C+Timothy+P%2E%22">Topper, Timothy P.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Junming%22">Zhou, Junming</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Zhao%22">Wang, Zhao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Pan%2C+Bing%22">Pan, Bing</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liang%2C+Yue%22">Liang, Yue</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Fan%22">Liu, Fan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zhifei%22">Zhang, Zhifei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> elizf@nwu.edu.cn</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Sedimentary+Geology%22">Sedimentary Geology</searchLink>. Oct2024, Vol. 472, pN.PAG-N.PAG. 1p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Fossils%22">Fossils</searchLink><br /><searchLink fieldCode="DE" term="%22Biofilms%22">Biofilms</searchLink><br /><searchLink fieldCode="DE" term="%22Organic+compounds%22">Organic compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Surface+coatings%22">Surface coatings</searchLink><br /><searchLink fieldCode="DE" term="%22Carbonates%22">Carbonates</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Siliciclastic grains, characterized by concentrated Al, Si, K and other elements, are typical components of ooids, but their distribution and contribution to ooid formation are uncertain. Coatings have played a significant role in small shelly fossil preservation in early Cambrian phosphate or phosphatic carbonates. However, the relationship between ooid construction and the preservation of small shelly fossils has not been fully elucidated. Herein, we report well-developed flaggy ooids containing siliciclastic grains from a middle Cambrian carbonate–siliciclastic depositional system in North China. We observe that ooids consist of multiple layers of dark and light laminae. The dark laminae with a high organic content and flexible appearance are interpreted as biofilms. The distribution of detrital grains is closely coupled with these dark laminae and the filamentous structures around fossil shells, which indicates that the detrital particles are bound by the biofilms or filamentous structures. The high occurrence and compacted nature of siliciclastic particles observed in these ooids reveal that detrital grains could be the main contributing factor in ooid formation in the middle Cambrian Longwanggou section. Those flaggy ooids composed of clay-size detrital grains finely mimic the shell morphology and microstructure, providing another important window for the preservation of small shelly fossils in the Cambrian. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Sedimentary Geology is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.sedgeo.2024.106740 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 1 StartPage: N.PAG Subjects: – SubjectFull: Fossils Type: general – SubjectFull: Biofilms Type: general – SubjectFull: Organic compounds Type: general – SubjectFull: Surface coatings Type: general – SubjectFull: Carbonates Type: general Titles: – TitleFull: Organic matter binding detrital grains contributing to ooid formation and small shelly fossil preservation, a case from the middle Cambrian, southern North China. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Hu, Yazhou – PersonEntity: Name: NameFull: Topper, Timothy P. – PersonEntity: Name: NameFull: Zhou, Junming – PersonEntity: Name: NameFull: Wang, Zhao – PersonEntity: Name: NameFull: Pan, Bing – PersonEntity: Name: NameFull: Liang, Yue – PersonEntity: Name: NameFull: Liu, Fan – PersonEntity: Name: NameFull: Zhang, Zhifei IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 10 Text: Oct2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 00370738 Numbering: – Type: volume Value: 472 Titles: – TitleFull: Sedimentary Geology Type: main |
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