Iron formations: A global record of Neoarchaean to Palaeoproterozoic environmental history
Kurt O. Konhauser,Noah J. Planavsky,Noah J. Planavsky,Dalton S. Hardisty,Leslie J. Robbins,Tyler J. Warchola,Rasmus Haugaard,Rasmus Haugaard,Stefan V. Lalonde,Camille A. Partin,Paul B.H. Oonk,Harilaos Tsikos,Timothy W. Lyons,Timothy W. Lyons,Andrey Bekker,Clark M. Johnson,Clark M. Johnson +16 more
Reads0
Chats0
TLDR
A review of the defining features of iron formations and their distribution through the Neo-archaean and Palaeoproterozoic is presented in this article, along with an update of previous reviews by Bekker et al. (2010, 2014).About:
This article is published in Earth-Science Reviews.The article was published on 2017-09-01 and is currently open access. It has received 280 citations till now.read more
Citations
More filters
Journal ArticleDOI
Biological mats in siliciclastic sediments of the Paleoproterozoic Gunflint Formation, northwestern Ontario, Canada
Sadie Fischer,Philip Fralick +1 more
TL;DR: The Gunflint Formation of northwestern Ontario, Canada, contains an extensive array of stromatolite morphologies and associated fossilized bacteria as discussed by the authors, and correlative units in the United States.
Possible Eoarchean records of the geomagnetic field preserved in the Isua Supracrustal Belt, southern west Greenland
Benjamin P. Weiss,Adam C. Maloof,Nigel M. Kelly,jack mike,Zawaski,Stephen J. Mojzsis,E. Bruce Watson,Daniele J. Cherniak +7 more
TL;DR: This paper used a pseudo-baked contact test to assess paleodirections in the banded iron formation that have avoided thermal overprints from subsequent igneous intrusions and demonstrate that specimens that pass this test also go on to pass fold and reversal tests.
Journal ArticleDOI
Cathodoluminescence of iron oxides and oxyhydroxides
TL;DR: In this paper , a micro-scale non-destructive analytical technique to characterize the combined mineralogy, chemical composition of iron oxides and oxyhydroxides was proposed, which showed promise as superconductor materials and as repositories of paleoenvironmental information.
Journal ArticleDOI
Major, trace element, and Nd isotopic compositions of banded iron formation and shales from the Sirsi shelf, Dharwar Craton, India: Implications for paleo-seawater chemistry, post-depositional alteration, and provenance
Pallab Basu,C. Ishwar-Kumar,Shipra Chaudhary,Ramananda Chakrabarti,M. Satish–Kumar,Krishnan Sajeev +5 more
TL;DR: In this article , the authors report geochemical and Nd isotopic data for ca. 2.5 Ga old banded iron Formation (BIF) and associated clastic rocks which include red and purple-coloured shales, mudstone, and sandstone from the Sirsi shelf of the Dharwar Craton.
References
More filters
Journal ArticleDOI
Early oxidation of organic matter in pelagic sediments of the eastern equatorial Atlantic: suboxic diagenesis
Philip N. Froelich,Gary P. Klinkhammer,Michael L. Bender,Nile A. Luedtke,G.R. Heath,Doug Cullen,Paul Dauphin,Doug Hammond,Blayne Hartman,Val Maynard +9 more
TL;DR: Pore water profiles of total CO 2, pH, PO 3−4, NO − 3 plus NO − 2, SO 2− 4, S 2−, Fe 2+ and Mn 2+ have been obtained in cores from pelagic sediments of the eastern equatorial Atlantic under waters of moderate to high productivity as mentioned in this paper.
Book ChapterDOI
Rare earth elements in sedimentary rocks; influence of provenance and sedimentary processes
Journal ArticleDOI
Sedimentary pyrite formation: An update
TL;DR: In this article, it was shown that organic matter appears to be the major control on pyrite formation in normal (non-euxinic) terrigenous marine sediments where dissolved sulfate and iron minerals are abundant.
Journal ArticleDOI
A Neoproterozoic Snowball Earth
TL;DR: Negative carbon isotope anomalies in carbonate rocks bracketing Neoproterozoic glacial deposits in Namibia, combined with estimates of thermal subsidence history, suggest that biological productivity in the surface ocean collapsed for millions of years.
Journal ArticleDOI
Chemical composition and evolution of the upper continental crust: Contrasting results from surface samples and shales
TL;DR: The average chemical composition of the upper continental crust (UC) as a function of age is estimated from chemical analyses, geologic maps, stratigraphic sections and isotopic ages as discussed by the authors.