Geobiological role of cyanobacterial mats in sedimentary environments: production and preservation of organic matter

Cyanobacterial mats are among the most productive of aquatic photosynthetic systems. They were prevalent during the Precambrian, but now occupy limited, albeit widespread, ecological niches. Organic carbon produced by cyanobacterial mats is, potentially, a source material for kerogen and, later, hydrocarbon formation, a carbon and energy source for biogenic H2S production and metal sulphide deposition, and a reductant for abiogenic sulphide formation. The paper considers the microbiological and environmental constraints on the occurrence, primary productivity, decomposition, and preservation potential of modem cyanobacterial mats. It appears that bacterial decomposition to CO2 and CH4 will proceed at salinities up to halite saturation, even under anoxic conditions, and that substantial preservation will not take place except at salinities beyond this. Anoxic conditions alone will not prevent decomposition of cyanobacterial mat organic carbon. Mat-constructing cyanobacteria appear well-adapted to environments of fluctuating salinity and periodic desiccation. A model that accommodates the environmental limits imposed by the physiology of cyanobacterial primary producers and bacterial decomposers is consistent with the shallow fluctuating saline lake palaeoenvironment invoked to explain some oil shale occurrences.

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Identification info

Date (Publication)
1981-01-01T00:00:00
Citation identifier
Geoscience Australia Persistent Identifier/https://pid.geoscience.gov.au/dataset/ga/81091

Cited responsible party
Role Organisation / Individual Name Details
Publisher

Bureau of Mineral Resources, Geology and Geophysics

 Canberra
Author

Bauld, J.

 1
Name

BMR Journal of Australian Geology and Geophysics

Issue identification

6:4:307-317

Point of contact
Role Organisation / Individual Name Details
Custodian

Corp
Owner

Commonwealth of Australia (Geoscience Australia)
Custodian

Commonwealth of Australia (Geoscience Australia)

 Voice
Topic category
  • Geoscientific information
Maintenance and update frequency
Unknown

Resource format

Title

Product data repository: Various Formats

Website

Data Store directory containing the digital product files

Data Store directory containing one or more files, possibly in a variety of formats, accessible to Geoscience Australia staff only for internal purposes

Keywords

  • GA Publication

  • Journal

Australian and New Zealand Standard Research Classification (ANZSRC)

  • Earth Sciences

Keywords

  • Published_External

Resource constraints

Title

Creative Commons Attribution 4.0 International Licence

Alternate title

CC-BY

Edition

4.0

Website

http://creativecommons.org/licenses/

Access constraints
License
Use constraints
License

Resource constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified
Language
English
Character encoding
UTF8

Distribution Information

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Role Organisation / Individual Name Details
Distributor

Commonwealth of Australia (Geoscience Australia)

 Voice
OnLine resource

Journal article (pdf)

Journal article (pdf)

Distribution format

  • pdf

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Unknown

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Non geographic dataset
Other

GA Publication

Description

Source data not available.

Metadata constraints

Title

Australian Government Security ClassificationSystem

Edition date
2018-11-01T00:00:00
Website

https://www.protectivesecurity.gov.au/Pages/default.aspx

Classification
Unclassified

Metadata

Metadata identifier
urn:uuid/fae9173a-7020-71e4-e044-00144fdd4fa6

Title

GeoNetwork UUID

Language
English
Character encoding
UTF8
Contact
Role Organisation / Individual Name Details
Point of contact

Commonwealth of Australia (Geoscience Australia)

 Voice

Type of resource

Resource scope
Document
Name

AGSO BMR Journal

Alternative metadata reference

Title

Geoscience Australia - short identifier for metadata record with

uuid

Citation identifier
eCatId/81091

Metadata linkage

https://ecat.ga.gov.au/geonetwork/srv/eng/catalog.search#/metadata/fae9173a-7020-71e4-e044-00144fdd4fa6

Date info (Revision)
2018-04-20T06:10:06
Date info (Creation)
2014-06-03T00:00:00

Metadata standard

Title

AU/NZS ISO 19115-1:2014

Metadata standard

Title

ISO 19115-1:2014

Metadata standard

Title

ISO 19115-3

Title

Geoscience Australia Community Metadata Profile of ISO 19115-1:2014

Edition

Version 2.0, September 2018

Citation identifier
https://pid.geoscience.gov.au/dataset/ga/122551

 
 

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