View in EDS

Synchronous authigenic albite and dolomite formation in carbonates.

Saved in:
Bibliographic Details
Title: Synchronous authigenic albite and dolomite formation in carbonates.
Authors: Hofmann, Michael H.1 (AUTHOR) michael.hofmann@umontana.edu, Sherry, Mitchell C.1,2 (AUTHOR)
Source: Sedimentology. Dec2025, Vol. 72 Issue 7, p2393-2423. 31p.
Subjects: Albite, Dolomite, Clay minerals, Carbonate reservoirs, Rock-forming minerals, Sedimentary basins
Abstract: Understanding the drivers of authigenic mineral formation in low permeability carbonate reservoirs is critical to model sedimentary basin history and to predict reservoir quality. The aim of this study is to define a mechanism that explains the curious juxtaposition of authigenic albite and dolomite observed in the Austin Chalk Formation. It is proposed that the formation of these authigenic phases was contemporaneous and was directly controlled by the mobilisation of cations from the smectite to illite transition. The observations presented here suggest a strong interdependence between the presence of clay mineral rich lithofacies and the formation of authigenic albite and dolomite. The growth of these authigenic phases was inhibited by supply limitations in a closed geochemical system. Similarly, cation mobility curtailment through the gradual destruction of porosity and permeability during mechanical compaction, chemical compaction (stylolite formation) and clay mineral alignment reduced fluid flow from the clay mineral rich lithofacies into the surrounding facies, further restricting the mineral growth. Most of the authigenic albite and dolomite crystal growth aligns with the early and peak smectite to illite transformation at relatively low temperatures during burial. The formation of authigenic albite and dolomite in the Austin Chalk thus provides a unique window into the controls of authigenic albite and dolomite growth in fine‐grained carbonate systems. This detailed analysis identifies thin clay mineral rich interbeds as a first‐order control on the formation of authigenic phases in a fine‐grained carbonate system. [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
Header DbId: egs
DbLabel: Engineering Source
An: 192265537
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Synchronous authigenic albite and dolomite formation in carbonates.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Hofmann%2C+Michael+H%2E%22">Hofmann, Michael H.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> michael.hofmann@umontana.edu</i><br /><searchLink fieldCode="AR" term="%22Sherry%2C+Mitchell+C%2E%22">Sherry, Mitchell C.</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Sedimentology%22">Sedimentology</searchLink>. Dec2025, Vol. 72 Issue 7, p2393-2423. 31p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Albite%22">Albite</searchLink><br /><searchLink fieldCode="DE" term="%22Dolomite%22">Dolomite</searchLink><br /><searchLink fieldCode="DE" term="%22Clay+minerals%22">Clay minerals</searchLink><br /><searchLink fieldCode="DE" term="%22Carbonate+reservoirs%22">Carbonate reservoirs</searchLink><br /><searchLink fieldCode="DE" term="%22Rock-forming+minerals%22">Rock-forming minerals</searchLink><br /><searchLink fieldCode="DE" term="%22Sedimentary+basins%22">Sedimentary basins</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Understanding the drivers of authigenic mineral formation in low permeability carbonate reservoirs is critical to model sedimentary basin history and to predict reservoir quality. The aim of this study is to define a mechanism that explains the curious juxtaposition of authigenic albite and dolomite observed in the Austin Chalk Formation. It is proposed that the formation of these authigenic phases was contemporaneous and was directly controlled by the mobilisation of cations from the smectite to illite transition. The observations presented here suggest a strong interdependence between the presence of clay mineral rich lithofacies and the formation of authigenic albite and dolomite. The growth of these authigenic phases was inhibited by supply limitations in a closed geochemical system. Similarly, cation mobility curtailment through the gradual destruction of porosity and permeability during mechanical compaction, chemical compaction (stylolite formation) and clay mineral alignment reduced fluid flow from the clay mineral rich lithofacies into the surrounding facies, further restricting the mineral growth. Most of the authigenic albite and dolomite crystal growth aligns with the early and peak smectite to illite transformation at relatively low temperatures during burial. The formation of authigenic albite and dolomite in the Austin Chalk thus provides a unique window into the controls of authigenic albite and dolomite growth in fine‐grained carbonate systems. This detailed analysis identifies thin clay mineral rich interbeds as a first‐order control on the formation of authigenic phases in a fine‐grained carbonate system. [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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=192265537
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1111/sed.70045
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 31
        StartPage: 2393
    Subjects:
      – SubjectFull: Albite
        Type: general
      – SubjectFull: Dolomite
        Type: general
      – SubjectFull: Clay minerals
        Type: general
      – SubjectFull: Carbonate reservoirs
        Type: general
      – SubjectFull: Rock-forming minerals
        Type: general
      – SubjectFull: Sedimentary basins
        Type: general
    Titles:
      – TitleFull: Synchronous authigenic albite and dolomite formation in carbonates.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Hofmann, Michael H.
      – PersonEntity:
          Name:
            NameFull: Sherry, Mitchell C.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 12
              Text: Dec2025
              Type: published
              Y: 2025
          Identifiers:
            – Type: issn-print
              Value: 00370746
          Numbering:
            – Type: volume
              Value: 72
            – Type: issue
              Value: 7
          Titles:
            – TitleFull: Sedimentology
              Type: main
ResultId 1