... of the composition and metallogenesis of the selected deposits; yet in all the samples analyzed we discovered that the imaging revealed new features that had not been previously reported. The Fifield Pt-Au field , located about 380 km west-northwest of Sydney (New South Wales, Australia), is the most...

... dissolution/re-precipitation processes of Pt and associated elements, grains of Pt-Fe alloy were collected from a soil placer deposit at the Fifield Pt-field, Australia. Optical- and electron-microscopy revealed morphologies indicative of physical transport as well as chemical weathering. Dissolution “pits...

... of the origin of PGM nuggets in placer deposits as well as PGM grains in laterites for three main reasons: (1) some 650 kg of Pt was recovered from alluvial/eluvial Pt deposits in the Fifield area; (2) although bedrock Pt grades are highly variable, some samples have Pt grades of up to 25 g/t; the laterites...

... Fifield, N.S.W., Australia. 2. Platinum-group minerals in placer deposits at Fifield . Mineral. Petrol . 43 , 161 – 180 . Snetsinger , K.G. ( 1973 ): Chromian aluminian magnetite and two rhodium alloys in a platinum nugget from Goodnews Bay, Alaska . Am. Mineral . 58 , 189 – 194...

... on building sites. The two companion books were written by Jerald Fifield, a hydrologist with much field experience in sediment and erosion control in California. The books were designed to make construction site sediment and erosion control more effective and easier for the variety of design professionals...

... as inclusions in isoferroplatinum in many placers of the world which exist in concentrically zoned massifs. Malanite (CuPt 2 S 4 ) occurs near Yubdo (Ethiopia) and in Uralian placers; cuprorhodsite (CuRh 2 S 4 ) is common to alluvial deposits of the Durance (France) and Santiago (Ecuador) Rivers and to Fifield...

...Toshiyuki Fujioka; John Chappell; L. Keith Fifield; Edward J. Rhodes Abstract Development of continental aridity has been linked to late Cenozoic global cooling, but the evidence is indirect, based on terrestrial loess deposits and eolian silt in marine sediments, whereas direct dating...

... as in archaeology, biomedicine, and environmental science ( Tuniz et al., 1998 ; Fifield, 1999 ). This paper provides an overview of AMS techniques, their strengths and limitations, and a brief review of some geologic applications. The strength of AMS lies in its ability to count small numbers of certain...

...A. FLEMING; M. A. SUMMERFIELD; J. O. STONE; L. K. FIFIELD; R. G. CRESSWELL Abstract Cosmogenic 36 C1 concentrations in basalt samples from the Drakensberg escarpment on the SE African passive margin give quantitative estimates of denudation and scarp retreat rates. Over the 10 4 –10 6 year timespan...

.... , Ohnenstetter , M. , Barron , L.M. & Suppel , D. ( 1991 ): Platinum mineralization in the Alaskan-type intrusive complexes near Fifield, N.S.W., Australia. 2. Platinum-group minerals in placer deposits at Fifield . Mineral. Petrol . 43 , 161 – 180 . Tolstykh , N.D. , Foley , J.Y...

... minerals in placer deposits at Fifield . Mineral. Petrol . 43 , 161 – 180 . Slobodskoy , R.M. ( 1981 ): Elemento-organic Compounds in the Magmagene and Ore-Forming Processes ( Yu.A. Kuznecov and V.N. Sharapov , eds.). Nauka, Novosibirsk , Russia (in Russ.). Tarkian , M...

.... ( 1991 ): Platinum mineralization in the Alaskan-type intrusive complexes near Fifield, N.S.W., Australia. 2. Platinum-group minerals in placer deposits at Fifield . Mineral. Petrol . 43 , 161 – 180 . Taylor , H.P. , Jr . & Noble J.A. ( 1969 ): Origin of magnetite in the zoned...

... , E. , Johan , Z. , Ohnenstetter , M. , 1991 . Platinum mineralization in the Alaskan-type intrusive complexes near Fifield, N.S.W., Australia. Part 2. Platinum-group minerals in placer deposits at Fifield . Miner. Petrol. 43 , 161 – 180...

...J. Stone; K. Lambeck; L. K. Fifield; J. M. Evans; R. G. Cresswell Abstract The sea-level record preserved in ancient shorelines forms a basis for studies of tectonic uplift, glacial loading, and the changing volume of the oceans. The existing record is derived largely from depositional features...

...Toshiyuki Fujioka; John Chappell; Masahiko Honda; Igor Yatsevich; Keith Fifield; Derek Fabel Abstract Stony deserts are durable indicators of aridity but until now have not been directly dated. Using 21 Ne and 10 Be produced in surface rocks by cosmic rays, we show that Australian stony deserts...

... exposure ages of 430–490 ka or maximum erosion rates of 0.7–0.8 m m.y. −1 . These ages and rates are exceptional because they represent an extensive landform. The 10 Be concentrations from samples collected at depth and optically stimulated luminescence (OSL) dating reveal a two-stage colluvial deposition...

...Giorgio Garuti; Federica Zaccarini ABSTRACT Naldrettite (Pd 2 Sb) is a PGM discovered in 2005 in Mesamax Northwest deposit, Ungava region, Quebec, Canada. Before and after its approval, PGM with the naldrettite type composition have been reported from a number of localities worldwide. Most...

... Siberian deposits, Fifield in New South Wales, Durance River in French Alps, Colombia and Yubdo in Ethiopia ( Johan 2002 ). Typical minerals are bornite, cuprorhodsite (CuRh 2 S 4 ), Rh- and Cu-enriched Fe–Pt alloys, rarely even Pt 3 Cu and (Pt,Pd) 2 Cu 3, and kashinite (Ir,Rh) 2 S 3 ( Johan 1995...

...., Suppel, D., Johan, Z., & Ohnenstetter, M. (1991) Platinum mineralization in the Alaskan-type intrusive complexes near Fifield, N.S.W., Australia. Part 2. Platinum-group minerals in placer deposits...