Disentangling palaeoecological and outcrop controls on MISS occurrence in c. 1 Ga fluvio‐lacustrine facies of the Diabaig Formation, Scotland.
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| Title: | Disentangling palaeoecological and outcrop controls on MISS occurrence in c. 1 Ga fluvio‐lacustrine facies of the Diabaig Formation, Scotland. |
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| Authors: | Herron, Seán T.1 (AUTHOR) sth30@cam.ac.uk, Davies, Neil S.1 (AUTHOR), McMahon, William J.1 (AUTHOR) |
| Source: | Sedimentology. Jun2026, Vol. 73 Issue 4, p883-913. 31p. |
| Subjects: | Sedimentary structures, Sedimentary facies (Geology), Geology, Geological formations, Paleoecology, Sedimentology, Biogenic sedimentary rocks |
| Geographic Terms: | Scotland |
| Abstract: | The c. 1 Ga Diabaig Formation of north‐west Scotland preserves diverse lacustrine and fluvial facies and abundant microbial and non‐microbial surficial sedimentary features. 172.6 m of section was logged across seven localities to assess the distribution of microbially induced sedimentary structures (MISS) relative to lithofacies, substrate type and outcrop exposure. MISS‐like surficial textures are common in low‐energy lacustrine mudstones and intermittently observed in fluvial margin deposits, but rare or absent in high‐energy facies. Distinctive surface morphologies, including stellate boss‐like features, are locally developed and suggest variability in substrate–surface interactions. Observed MISS distributions reflect the combined influence of local sedimentological conditions conducive to mat development, preservation of true substrates and limits imposed by outcrop exposure and recognition, resulting in strong spatial heterogeneity. MISS occurrences in the Diabaig Formation thus provide palaeoenvironmental insights beyond those archived by lithofacies alone, when considered in their sedimentological and preservational context, but their apparent abundance and variety should not be interpreted as straightforward facies indicators when considered in isolation. [ABSTRACT FROM AUTHOR] |
| Copyright of Sedimentology is the property of Wiley-Blackwell 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: 194450295 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Disentangling palaeoecological and outcrop controls on MISS occurrence in c. 1 Ga fluvio‐lacustrine facies of the Diabaig Formation, Scotland. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Herron%2C+Seán+T%2E%22">Herron, Seán T.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> sth30@cam.ac.uk</i><br /><searchLink fieldCode="AR" term="%22Davies%2C+Neil+S%2E%22">Davies, Neil S.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22McMahon%2C+William+J%2E%22">McMahon, William J.</searchLink><relatesTo>1</relatesTo> (AUTHOR) – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Sedimentology%22">Sedimentology</searchLink>. Jun2026, Vol. 73 Issue 4, p883-913. 31p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Sedimentary+structures%22">Sedimentary structures</searchLink><br /><searchLink fieldCode="DE" term="%22Sedimentary+facies+%28Geology%29%22">Sedimentary facies (Geology)</searchLink><br /><searchLink fieldCode="DE" term="%22Geology%22">Geology</searchLink><br /><searchLink fieldCode="DE" term="%22Geological+formations%22">Geological formations</searchLink><br /><searchLink fieldCode="DE" term="%22Paleoecology%22">Paleoecology</searchLink><br /><searchLink fieldCode="DE" term="%22Sedimentology%22">Sedimentology</searchLink><br /><searchLink fieldCode="DE" term="%22Biogenic+sedimentary+rocks%22">Biogenic sedimentary rocks</searchLink> – Name: SubjectGeographic Label: Geographic Terms Group: Su Data: <searchLink fieldCode="DE" term="%22Scotland%22">Scotland</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: The c. 1 Ga Diabaig Formation of north‐west Scotland preserves diverse lacustrine and fluvial facies and abundant microbial and non‐microbial surficial sedimentary features. 172.6 m of section was logged across seven localities to assess the distribution of microbially induced sedimentary structures (MISS) relative to lithofacies, substrate type and outcrop exposure. MISS‐like surficial textures are common in low‐energy lacustrine mudstones and intermittently observed in fluvial margin deposits, but rare or absent in high‐energy facies. Distinctive surface morphologies, including stellate boss‐like features, are locally developed and suggest variability in substrate–surface interactions. Observed MISS distributions reflect the combined influence of local sedimentological conditions conducive to mat development, preservation of true substrates and limits imposed by outcrop exposure and recognition, resulting in strong spatial heterogeneity. MISS occurrences in the Diabaig Formation thus provide palaeoenvironmental insights beyond those archived by lithofacies alone, when considered in their sedimentological and preservational context, but their apparent abundance and variety should not be interpreted as straightforward facies indicators when considered in isolation. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Sedimentology is the property of Wiley-Blackwell 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: 10.1111/sed.70100 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 31 StartPage: 883 Subjects: – SubjectFull: Sedimentary structures Type: general – SubjectFull: Sedimentary facies (Geology) Type: general – SubjectFull: Geology Type: general – SubjectFull: Geological formations Type: general – SubjectFull: Paleoecology Type: general – SubjectFull: Sedimentology Type: general – SubjectFull: Biogenic sedimentary rocks Type: general – SubjectFull: Scotland Type: general Titles: – TitleFull: Disentangling palaeoecological and outcrop controls on MISS occurrence in c. 1 Ga fluvio‐lacustrine facies of the Diabaig Formation, Scotland. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Herron, Seán T. – PersonEntity: Name: NameFull: Davies, Neil S. – PersonEntity: Name: NameFull: McMahon, William J. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 06 Text: Jun2026 Type: published Y: 2026 Identifiers: – Type: issn-print Value: 00370746 Numbering: – Type: volume Value: 73 – Type: issue Value: 4 Titles: – TitleFull: Sedimentology Type: main |
| ResultId | 1 |
