Axel Hofmann
Axel Hofmann
Verified email at uj.ac.za
TitleCited byYear
Iron formation: the sedimentary product of a complex interplay among mantle, tectonic, oceanic, and biospheric processes
A Bekker, JF Slack, N Planavsky, B Krapez, A Hofmann, KO Konhauser, ...
Economic Geology 105 (3), 467-508, 2010
5732010
Evidence for oxygenic photosynthesis half a billion years before the Great Oxidation Event
NJ Planavsky, D Asael, A Hofmann, CT Reinhard, SV Lalonde, ...
Nature Geoscience 7 (4), 283, 2014
2792014
Rare earth element and yttrium compositions of Archean and Paleoproterozoic Fe formations revisited: new perspectives on the significance and mechanisms of deposition
N Planavsky, A Bekker, OJ Rouxel, B Kamber, A Hofmann, A Knudsen, ...
Geochimica et Cosmochimica Acta 74 (22), 6387-6405, 2010
2322010
Geodynamo, solar wind, and magnetopause 3.4 to 3.45 billion years ago
JA Tarduno, RD Cottrell, MK Watkeys, A Hofmann, PV Doubrovine, ...
science 327 (5970), 1238-1240, 2010
2092010
The geochemistry of sedimentary rocks from the Fig Tree Group, Barberton greenstone belt: implications for tectonic, hydrothermal and surface processes during mid-Archaean times
A Hofmann
Precambrian Research 143 (1-4), 23-49, 2005
1622005
Towards a complete magmatic barcode for the Zimbabwe craton: Baddeleyite U–Pb dating of regional dolerite dyke swarms and sill complexes
U Söderlund, A Hofmann, MB Klausen, JR Olsson, RE Ernst, PO Persson
Precambrian Research 183 (3), 388-398, 2010
1202010
Sulfur record of rising and falling marine oxygen and sulfate levels during the Lomagundi event
NJ Planavsky, A Bekker, A Hofmann, JD Owens, TW Lyons
Proceedings of the National Academy of Sciences 109 (45), 18300-18305, 2012
1122012
Silica alteration zones in the Barberton greenstone belt: a window into subseafloor processes 3.5–3.3 Ga ago
A Hofmann, C Harris
Chemical Geology 257 (3-4), 221-239, 2008
1042008
Iron isotope composition of some Archean and Proterozoic iron formations
N Planavsky, OJ Rouxel, A Bekker, A Hoffman, CTS Little, TW Lyons
Geochimica et Cosmochimica Acta, 2011
992011
Iron formations: Their origins and implications for ancient seawater chemistry
A Bekker, N Planavsky, B Rasmussen, B Krapez, A Hofmann, J Slack, ...
Treatise on geochemistry 12, 561-628, 2014
982014
Cyclicity of Triassic to Lower Jurassic continental red beds of the Argana Valley, Morocco: implications for palaeoclimate and basin evolution
A Hofmann, A Tourani, R Gaupp
Palaeogeography, Palaeoclimatology, Palaeoecology 161 (1-2), 229-266, 2000
832000
Multiple sulphur and iron isotope composition of detrital pyrite in Archaean sedimentary rocks: a new tool for provenance analysis
A Hofmann, A Bekker, O Rouxel, D Rumble, S Master
Earth and Planetary Science Letters 286 (3-4), 436-445, 2009
802009
Carbonaceous cherts in the Barberton Greenstone Belt and their significance for the study of early life in the Archean record
A Hofmann, R Bolhar
Astrobiology 7 (2), 355-388, 2007
642007
The geochemistry of Archaean shales derived from a mafic volcanic sequence, Belingwe greenstone belt, Zimbabwe: provenance, source area unroofing and submarine versus subaerial …
A Hofmann, R Bolhar, P Dirks, H Jelsma
Geochimica et Cosmochimica Acta 67 (3), 421-440, 2003
642003
Implications of in situ calcification for photosynthesis in a~ 3.3 Ga-old microbial biofilm from the Barberton greenstone belt, South Africa
F Westall, B Cavalazzi, L Lemelle, Y Marrocchi, JN Rouzaud, ...
Earth and Planetary Science Letters 310 (3-4), 468-479, 2011
622011
Pyrite zoning as a record of mineralization in the Ventersdorp Contact Reef, Witwatersrand Basin, South Africa
A Agangi, A Hofmann, CC Wohlgemuth-Ueberwasser
Economic Geology 108 (6), 1243-1272, 2013
582013
Microbial remains in some earliest Earth rocks: comparison with a potential modern analogue
M Glikson, LJ Duck, SD Golding, A Hofmann, R Bolhar, R Webb, ...
Precambrian Research 164 (3-4), 187-200, 2008
582008
Coupled silicon–oxygen isotope fractionation traces Archaean silicification
K Abraham, A Hofmann, SF Foley, D Cardinal, C Harris, MG Barth, ...
Earth and Planetary Science Letters 301 (1-2), 222-230, 2011
472011
Pb-and Nd-isotope systematics of stromatolitic limestones from the 2.7 Ga Ngezi Group of the Belingwe Greenstone Belt: constraints on timing of deposition and provenance
R Bolhar, A Hofmann, J Woodhead, J Hergt, P Dirks
Precambrian Research 114 (3-4), 277-294, 2002
472002
Field relationships and age of supracrustal Beit Bridge Complex and associated granitoid gneisses in the Central Zone of the Limpopo Belt, South Africa
A Kroner, P Jaeckel, A Hofmann, AA Nemchin, G Brandl
South African Journal of Geology 101 (3), 201-213, 1998
461998
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