278 research outputs found
Anatase nanoparticles on supergene platinum-palladium aggregates from Brazil: Titanium mobility in natural waters
No full textSupergene aggregates of platinum-palladium (Pt-Pd) intermetallic compounds from the Córrego Bom Sucesso alluvial deposit, Minas Gerais, Brazil, are coated with abundant, poorly crystalline nanoparticles of anatase (TiO2). The anatase coating is widespread, suggesting that the surface of the Pt-Pd grains catalytically destabilised Ti, which was likely dissolved by organic ligands in the ground waters. Association of TiO2 nanocrystallites with organic matter further suggests that biogenic processes could have mediated their formation. These anatase-coated Pt-Pd grains demonstrate an unexpected Ti mobility in supergene environments. © 2012 Elsevier B.V.Alexandre Raphael Cabral, Frank Reith, Bernd Lehmann, Joël Brugger, Guido Meinhold, Miguel Tupinambá, Rogerio Kwitko-Ribeir
Exploration Geomicrobiology The New Frontier
No full textFrank Reith, Stephen L. Rogers and Andreas Schmidt-Mum
Editorial for special issue "geomicrobiology and biogeochemistry of precious metals"
No full textn/aFrank Reith and Jeremiah Shuste
Geomicrobiology of the regolith
No full textFrank Reith, Mia Durr, Susan Welch and Stephen L. Rogershttp://search.barnesandnoble.com/Regolith-Science/Keith-M-Scott/e/978140208859
Effect of soil properties on gold- and platinum nanoparticle mobility
No full textAbstract not availableFrank Reith, Geert Corneli
Effect of resident microbiota on the solubilization of gold in soil from the Tomakin Park Gold Mine, New South Wales, Australia
No full textCopyright © 2005 Elsevier Inc. All rights reserved.F. Reith and D.C. McPhailhttp://www.elsevier.com/wps/find/journaldescription.cws_home/212/description#descriptio
Biomineralization of gold: Biofilms on bacterioform gold
No full text
Bacterial biofilms are associated with secondary gold grains from two sites in Australia. 16
S
ribosomal DNA clones of the genus
Ralstonia
that bear 99% similarity to the bacterium
Ralstonia metallidurans
—shown to precipitate gold from aqueous gold(III) tetrachloride—were present on all DNA-positive gold grains but were not detected in the surrounding soils. These results provide evidence for the bacterial contribution to the authigenic formation of secondary bacterioform gold grains and nuggets.
Frank Reith, Stephen L. Rogers, D. C. McPhail, Daryl Web
Enrichment of germanium and associated arsenic and tungsten in coal and roll-front uranium deposits
No full textAbstract not availableBarbara Etschmann, Weihua Liu, Kan Li, Shifeng Dai, Frank Reith, Donna Falconer, Gemma Kerr, David Paterson, Daryl Howard, Peter Kappen, Jeremy Wykes, Joël Brugge
John William Reith: March 22, 1914 - August 9, 1967
No full text"He joined the USC faculty in 1948 and was both an author and\ud
lecturer." This simple statement in the Torrance Press Herald, August 23,\ud
1967, announcing that the Los Angeles County Board of Supervisors had\ud
adjourned in memory of the death of John W.(Jack)Reith, August 9 at\ud
Mount Sinai Hospital after a long illness with cancer does not begin to tell\ud
the story of Jack's nineteen years of contributions to the field of geography,\ud
the growth and development of his students, and his efforts to build a\ud
strong geography program in the University of Southern California curriculum
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