Geobiology of the late Paleoproterozoic Duck Creek Formation, Western Australia
The ca. 1.8 Ga Duck Creek Formation, Western Australia, preserves 1000 m of carbonates and minor iron formation that accumulated along a late Paleoproterozoic ocean margin. Two upward-deepening stratigraphic packages are preserved, each characterized by peritidal precipitates at the base and iron fo...
| Main Authors: | , , , , , , , , , , , , , , , , , |
|---|---|
| Other Authors: | |
| Format: | Article |
| Published: |
Elsevier BV
2018
|
| Online Access: | http://hdl.handle.net/1721.1/118440 https://orcid.org/0000-0002-7144-8537 |
| _version_ | 1826194150015369216 |
|---|---|
| author | Wilson, Jonathan P. Fischer, Woodward W. Johnston, David T. Knoll, Andrew H. Grotzinger, John P. Walter, Malcolm R. McNaughton, Neal J. Simon, Mel Abelson, John Schrag, Daniel P. Allwood, Abigail Andres, Miriam Gammon, Crystal Garvin, Jessica Rashby, Sky Schweizer, Maia Summons, Roger E Watters, Wesley A. |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Wilson, Jonathan P. Fischer, Woodward W. Johnston, David T. Knoll, Andrew H. Grotzinger, John P. Walter, Malcolm R. McNaughton, Neal J. Simon, Mel Abelson, John Schrag, Daniel P. Allwood, Abigail Andres, Miriam Gammon, Crystal Garvin, Jessica Rashby, Sky Schweizer, Maia Summons, Roger E Watters, Wesley A. |
| author_sort | Wilson, Jonathan P. |
| collection | MIT |
| description | The ca. 1.8 Ga Duck Creek Formation, Western Australia, preserves 1000 m of carbonates and minor iron formation that accumulated along a late Paleoproterozoic ocean margin. Two upward-deepening stratigraphic packages are preserved, each characterized by peritidal precipitates at the base and iron formation and carbonate turbidites in its upper part. Consistent with recent studies of Neoarchean basins, carbon isotope ratios of Duck Creek carbonates show no evidence for a strong isotopic depth gradient, but carbonate minerals in iron formations can be markedly depleted in [superscript 13]C. In contrast, oxygen isotopes covary strongly with depth; delta[superscript 18]O values as positive as 2%. VPDB in peritidal facies systematically decline to values of 6 to 16% in basinal rocks, reflecting, we posit, the timing of diagenetic closure. The Duck Creek Formation contains microfossils similar to those of the Gunflint Formation, Canada; they are restricted to early diagenetic cherts developed in basinal facies, strengthening the hypothesis that such fossils capture communities driven by iron metabolism. Indeed, X-ray diffraction data indicate that the Duck Creek basin was ferruginous throughout its history. The persistence of ferruginous waters and iron formation deposition in Western Australia for at least several tens of millions of years after the transition to sulfidic conditions in Laurentia suggests that the late Paleoproterozoic expansion of sulfidic subsurface waters was globally asynchronous. |
| first_indexed | 2024-09-23T09:51:41Z |
| format | Article |
| id | mit-1721.1/118440 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T09:51:41Z |
| publishDate | 2018 |
| publisher | Elsevier BV |
| record_format | dspace |
| spelling | mit-1721.1/1184402022-09-26T14:08:31Z Geobiology of the late Paleoproterozoic Duck Creek Formation, Western Australia Wilson, Jonathan P. Fischer, Woodward W. Johnston, David T. Knoll, Andrew H. Grotzinger, John P. Walter, Malcolm R. McNaughton, Neal J. Simon, Mel Abelson, John Schrag, Daniel P. Allwood, Abigail Andres, Miriam Gammon, Crystal Garvin, Jessica Rashby, Sky Schweizer, Maia Summons, Roger E Watters, Wesley A. Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Summons, Roger E Watters, Wesley A. The ca. 1.8 Ga Duck Creek Formation, Western Australia, preserves 1000 m of carbonates and minor iron formation that accumulated along a late Paleoproterozoic ocean margin. Two upward-deepening stratigraphic packages are preserved, each characterized by peritidal precipitates at the base and iron formation and carbonate turbidites in its upper part. Consistent with recent studies of Neoarchean basins, carbon isotope ratios of Duck Creek carbonates show no evidence for a strong isotopic depth gradient, but carbonate minerals in iron formations can be markedly depleted in [superscript 13]C. In contrast, oxygen isotopes covary strongly with depth; delta[superscript 18]O values as positive as 2%. VPDB in peritidal facies systematically decline to values of 6 to 16% in basinal rocks, reflecting, we posit, the timing of diagenetic closure. The Duck Creek Formation contains microfossils similar to those of the Gunflint Formation, Canada; they are restricted to early diagenetic cherts developed in basinal facies, strengthening the hypothesis that such fossils capture communities driven by iron metabolism. Indeed, X-ray diffraction data indicate that the Duck Creek basin was ferruginous throughout its history. The persistence of ferruginous waters and iron formation deposition in Western Australia for at least several tens of millions of years after the transition to sulfidic conditions in Laurentia suggests that the late Paleoproterozoic expansion of sulfidic subsurface waters was globally asynchronous. 2018-10-11T17:42:26Z 2018-10-11T17:42:26Z 2010-03 2010-02 2018-10-02T18:35:07Z Article http://purl.org/eprint/type/JournalArticle 0301-9268 http://hdl.handle.net/1721.1/118440 Wilson, Jonathan P., et al. “Geobiology of the Late Paleoproterozoic Duck Creek Formation, Western Australia.” Precambrian Research, vol. 179, no. 1–4, May 2010, pp. 135–49. https://orcid.org/0000-0002-7144-8537 http://dx.doi.org/10.1016/j.precamres.2010.02.019 Precambrian Research Creative Commons Attribution-NonCommercial-NoDerivs License http://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf Elsevier BV Other repository |
| spellingShingle | Wilson, Jonathan P. Fischer, Woodward W. Johnston, David T. Knoll, Andrew H. Grotzinger, John P. Walter, Malcolm R. McNaughton, Neal J. Simon, Mel Abelson, John Schrag, Daniel P. Allwood, Abigail Andres, Miriam Gammon, Crystal Garvin, Jessica Rashby, Sky Schweizer, Maia Summons, Roger E Watters, Wesley A. Geobiology of the late Paleoproterozoic Duck Creek Formation, Western Australia |
| title | Geobiology of the late Paleoproterozoic Duck Creek Formation, Western Australia |
| title_full | Geobiology of the late Paleoproterozoic Duck Creek Formation, Western Australia |
| title_fullStr | Geobiology of the late Paleoproterozoic Duck Creek Formation, Western Australia |
| title_full_unstemmed | Geobiology of the late Paleoproterozoic Duck Creek Formation, Western Australia |
| title_short | Geobiology of the late Paleoproterozoic Duck Creek Formation, Western Australia |
| title_sort | geobiology of the late paleoproterozoic duck creek formation western australia |
| url | http://hdl.handle.net/1721.1/118440 https://orcid.org/0000-0002-7144-8537 |
| work_keys_str_mv | AT wilsonjonathanp geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT fischerwoodwardw geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT johnstondavidt geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT knollandrewh geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT grotzingerjohnp geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT waltermalcolmr geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT mcnaughtonnealj geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT simonmel geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT abelsonjohn geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT schragdanielp geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT allwoodabigail geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT andresmiriam geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT gammoncrystal geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT garvinjessica geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT rashbysky geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT schweizermaia geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT summonsrogere geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia AT watterswesleya geobiologyofthelatepaleoproterozoicduckcreekformationwesternaustralia |