Raphael Baumgartner
University of New South Wales
LavaGeologyMeteoriteHydrothermal circulationBasaltGeochemistryMaterials scienceUltramafic rockEarth sciencePyriteAugiteNakhlitePilbara CratonMartianElectron backscatter diffractionSulfideStromatoliteIgneous rockSedimentary rockMantle (geology)Mars Exploration ProgramAstrobiology
Publications 32
#1Raphael Baumgartner (UNSW: University of New South Wales)H-Index: 8
#2Marcus Kunzmann (CSIRO: Commonwealth Scientific and Industrial Research Organisation)H-Index: 13
Last. Si-Yu Hu (CSIRO: Commonwealth Scientific and Industrial Research Organisation)H-Index: 7
view all 7 authors...
Abstract null null This study provides a Zn isotope characterization (δ66Zn) of the c. 1,640 Ma clastic-dominated McArthur River Zn-Pb-Ag deposit. Dolomitic, siltstone-hosted sulfide ores were sampled in two separate drill cores. One intersects the stratiform, vertically stacked orebodies at the centre of the deposit, and the other one intersects the south-eastern periphery of the deposit. The analyzed ores show relatively invariable δ66Zn values typical of the continental crust (0.35 ‰ median w...
#1Stefano Caruso (UWA: University of Western Australia)H-Index: 11
#2Martin J. Van Kranendonk (UNSW: University of New South Wales)H-Index: 51
Last. Margaret Forster (ANU: Australian National University)H-Index: 18
view all 5 authors...
Abstract null null Hydrothermal fluids played a key role in establishing the environmental conditions in which ancient stromatolites grew within the North Pole Chert of the ~3.48 Ga Dresser Formation (Pilbara Craton, Western Australia). However, there has been uncertainty as to the physicochemical conditions of the hydrothermal system in relation to (i) the distribution of hydrothermal alteration, (ii) the relative contribution of seawater and/or magmatic volatiles to the hydrothermal fluids, an...
#1S. GriffinH-Index: 4
Last. Gretchen BenedixH-Index: 28
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#6David W. Deamer (UCSC: University of California, Santa Cruz)H-Index: 75
#1Richard Murphy (USYD: University of Sydney)H-Index: 24
#2Martin J. Van Kranendonk (UNSW: University of New South Wales)H-Index: 51
Last. Chris Ryan (CSIRO: Commonwealth Scientific and Industrial Research Organisation)H-Index: 112
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Hyperspectral and micro X-ray fluorescence (μXRF) imagery were used to derive maps of mineralogy and elemental chemistry from a sample of a siliceous hot spring deposit, or sinter, collected from a...
#1Martin J. Van Kranendonk (UNSW: University of New South Wales)H-Index: 51
#2Raphael Baumgartner (UNSW: University of New South Wales)H-Index: 8
Last. Eizo Nakamura (Okayama University)H-Index: 59
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For decades, deep sea hydrothermal vents have been a preferred setting for the Origin of Life, but "The Water Problem" as relates to polymerization of organic molecules, together with a propensity to dilute critical prebiotic elements as well as a number of other crucial factors, suggests that a terrestrial hot spring field with the capacity for wet-dry cycling and element concentration may represent a more likely candidate. Here, we investigate a 3.5 billion-year-old, anoxic hot spring setting ...
Abstract null null The ancient rocks of the Pilbara region of Western Australia have been an important analog site for the study of possible inhabited environments in the search for life on early Mars for over four decades. Here, we review the evidence for Paleo- to Neoarchean life and the habitats that it occupied in the Pilbara Craton and unconformably overlying Fortescue Group of the Mount Bruce Supergroup. Nine major inhabited environments are described, which range from land to sea, and int...
#1Sonja Aulbach (Goethe University Frankfurt)H-Index: 27
#2Andrea Giuliani (ETH Zurich)H-Index: 25
Last. William L. Griffin (Macquarie University)H-Index: 138
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Abstract The metasomatised continental mantle may play a key role in the generation of some ore deposits, in particular mineral systems enriched in platinum-group elements (PGE) and Au. The cratonic lithosphere is the longest-lived potential source for these elements, but the processes that facilitate their pre-concentration in the mantle and their later remobilisation to the crust are not yet well-established. Here, we report new results on the petrography, major-element, and siderophile- and c...
#4Anais Pagès (Department of Water)H-Index: 12
The shallow marine and subaerial sedimentary and hydrothermal rocks of the ~3.48 billion-year-old Dresser Formation are host to some of Earth's oldest stromatolites and microbial remains. This study reports on texturally distinctive, spherulitic barite micro-mineralization that occur in association with primary, autochthonous organic matter within exceptionally preserved, strongly sulfidized stromatolite samples obtained from drill cores. Spherulitic barite micro-mineralization within the sulfid...
#1Raphael Baumgartner (UNSW: University of New South Wales)H-Index: 8
#2Stefano Caruso (UWA: University of Western Australia)H-Index: 11
Last. David Wacey (UWA: University of Western Australia)H-Index: 29
view all 8 authors...
Abstract This study reports in–situ sulfur isotope analyses (32S, 33S, 34S and 36S) of pyrite in strongly sulfidized stromatolites from the ~3.48 billion–year–old Dresser Formation, Pilbara Craton, Australia. These data shed light on sulfur reservoirs and sulfide precipitation processes and provide clues for the contribution of sulfur–cycling microbes to sulfidization. Sulfur isotope signatures derived from mass dependent fractionation (MDF; monitored by δ34S) and mass independent fractionation ...
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