Table Of Content

JOURNAL OF GEOCHEMICAL EXPLORATION VOLUME 57 NOS. 1-3 SPECIAL ISSUE GEOCHEMICAL EXPLORATION 1995 Edited by Graham F. Taylor and Richard Davy es ke bk Ge ee eS SSE RES ORS 78 Te OSE ERED 2G DES ORK OE Twenty-five years in geoanalysis, 1970-1995 (Presidential Address at 17th IGES in Townsville, Australia, May 15, 1995) I a ad 8 a eke a ew alee ooo upok & Ok ake eee eae Oe eee oe OLED Gk oO ee l Transport of cassiterite in a Malaysian stream: implications for geochemical exploration a We GPE RE nb we IO Ie as Oe CSUR, CAS RSS CIT Ge. 9 The relations between false gold anomalies, sedimentological processes and landslides in Harris Creek, British Columbia, Canada is II tna 36) i> de race Kar cb 2 et eek Bier metaceie CES Adie + Win cniccbe eet oe 21 Aspects of exploration geochemistry in Southeast Asia: soils, sediments and potential for anthropogenic effects 2 See Sere ets ee eee ee ee Se rrr eer ere re a eee ee ee ee 31 eeee ee © © © © © © © © © © © © © © © © © ee ee ee ee oe ee ee ee we ee ee ee ee eee ee ee ee ee we ee hl hlUlh hl hl Geochemistry and exploration significance of ironstones and barite-rich rocks in the Proterozoic Willyama Supergroup, Olary Block, South Australia I kg oo a it A ae eae ke eel elG ee ak ak a 57 Interpreting aerial gamma-ray surveys utilising geomorphological and weathering models ee I, a WUE OE a I gcc cette eee heehee eee whe ee wee anes Deaen 75 Discovery of the Mt Bini porphyry copper-gold—molybdenum deposit in the Owen Stanley Ranges, Papua New Guinea — A geochemical case history ek ein Ti, Se ee, GO i oso bi ei oh eae fears + eee meewradd 62% paws ee heed: Shes 89 ‘*Dipole’” CHIM: concept and application A. Levitski, B. Filanovski, T. Bourenko, E. Tannenbaum and G. Bar-Am. ..... 2... ee ee eee eee ee tee wees 101 Mineralogy, morphology and chemistry of gold in the stone line lateritic profile of the Posse deposit, Central Brazil ee eee es BEL a ae eh ee oe ee eee Cee eo ee eee a ee eee ee Eee 115 On the albite-enriched granitoids at Um Ara area, Southeastern Desert, Egypt. 1. Geochemical, ore potentiality and fluid inclusion studies H.M. Abdalla, S. Ishihara, H. Matsueda and A.A. Abdel Monem .. 1... 2... eee ee ee ee ww tet te et ww es 127 Ferruginous lag geochemistry on the Yilgarn Craton of Western Australia; practical aspects and limitations a ae kk ee eee ek Sak oe OL oO RS a Oe EE © ae Oe Oe ee ee eo 139 A case-hardened, low contamination ring mill for multi-element geochemistry I.D.M. Robertson, M. Dyson, E.G. Hudson, J.F. Crabb, M.J. Willing and M.K.W. Hart... 1... 2. eee ee ee ee eee 153 Regolith research in support of mineral exploration in Australia Nnoe als il eee GR oe ke sg bee Sea ei a a eek 159 The application of soil geochemistry to gold exploration in the black Flag Area, Yilgarn Block, Western Australia NS SIRE EEE PE SS ee ee ee ee eee ee Se ee eee Se Pee Cee eT Se ee 175 Geochemistry of trace elements in Paleozoic bauxite profiles in northern Russia TN FES ee ee eee Tee CCE CE SOU CEE REAR CERO RE COE COR CROCE Ce 187 Gold, wolframite, tourmaline-bearing lateritized gossans in the Amazon region, Brazil ee PP ee eee ee ee ee ee ee ee ee ee 201 Pseudomorphic replacement versus dilation in laterites: petrographic evidence, mechanisms, and consequences for modelling eg ag eg hk A hie ek we a a a a ee ae ak ee Ok eke ee ee ee ae 217 Biogeochemical exploration for gold in tropical rain forest regions of Papua New Guinea B.A. Melnnes. C.E. Dunn, £.M. Cameron and L. Mameko.. . 1... ccc cecc ec ese re reeseseseenwseeseceuse 227 Mineral associations of platinum and palladium in lateritic regolith, Ora Banda Sill, Western Australia a ee, Se nin hs a ee 0 ee ew OO ORO eo Oe hee Ce ee 245 (continued on p. vi) (Contents continued) Application of multi-element geochemistry in Au—phosphate-bearing lateritic crusts for identification of their parent rocks ee ee i kk kn wR A we 8 8a we Oe Sake KRO e ® Oe be 0 Rol Rk eee 257 Copper (gold) and non-metal deposits hosted in Mesozoic shoshonite and K-rich calc-alkaline series from Lishui in the Lower Yangtze region, China Se es es a, ee a Be OE Nb FE KERR RR ORE ee OREO EHO Oe OO ees 273