Three Great Basins of Precambrian Banded Iron Formation Deposition: A Systematic Comparison

Research Article| November 01, 1968 Three Great Basins of Precambrian Banded Iron Formation Deposition: A Systematic Comparison A. F TRENDALL A. F TRENDALL Geological Survey of Western Australia, Perth, Western Australia Search for other works by this author on: GSW Google Scholar Author and Article Information A. F TRENDALL Geological Survey of Western Australia, Perth, Western Australia Publisher: Geological Society of America Received: 07 Aug 1967 Revision Received: 31 May 1968 First Online: 02 Mar 2017 Online ISSN: 1943-2674 Print ISSN: 0016-7606 Copyright © 1968, The Geological Society of America, Inc. Copyright is not claimed on any material prepared by U.S. government employees within the scope of their employment. GSA Bulletin (1968) 79 (11): 1527–1544. https://doi.org/10.1130/0016-7606(1968)79[1527:TGBOPB]2.0.CO;2 Article history Received: 07 Aug 1967 Revision Received: 31 May 1968 First Online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Facebook Twitter LinkedIn Email Permissions Search Site Citation A. F TRENDALL; Three Great Basins of Precambrian Banded Iron Formation Deposition: A Systematic Comparison. GSA Bulletin 1968;; 79 (11): 1527–1544. doi: https://doi.org/10.1130/0016-7606(1968)79[1527:TGBOPB]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The origin of Precambrian banded iron formations is controversial. One type of evidence is a comparison of different occurrences. Three of the best-preserved basins of Precambrian iron formation deposition are here denned and compared systematically: the Hamersley Basin of Western Australia, the Animikie Basin of North America, and the Transvaal System Basin of South Africa. After a brief summary of the broad structural and stratigraphic evolution of each basin, their differences and similarities are reviewed. They differ mainly in: major stratigraphic sequence, thickness of iron formation, thickness variation, stratigraphic continuity, lithology of iron formation, nature of sedimentary structures, conspicuousness of varves (micro-banding), clastic association, and abundance of diagenetic riebeckite. With some reservations, they resemble each other in: age, basin size, chemistry and mineralogy, broad time-structural evolution of basin, precedence of chert, volcanic association, and in the restricted, medial and transitional stratigraphic status of the main iron formation. It is concluded that the Western Australian and South African iron formations are very closely similar, but that both differ markedly from the Animikie iron formations of the Lake Superior area. However, all three are more closely similar in chemistry than is required by the fact that their definition is chemical. Quantitative geochemical argument indicates a direct volcanic contribution of iron to the Hamersley Basin; it is possible that such vulcanicity is restricted to a limited medial part of basin development in a particular kind of basin-forming process. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.