Gold field

Annual Reports on Gold, Gold Fields Mineral Services, Ltd., London. 

Neutral and charged gold carbonyl species have also been observed on gold field emitter tips upon interaction with CO gas at room temperature in the presence of high electrostatic fields. The adsorbed complexes and the desorption pathways were identified using time-of-flight mass spectroscopy. [(CO)Au] species are more abundant than [Au(CO)2] species. The product distribution was rationalized by DF calculations of the electronic structure of the complexes.291... 

Bycroft, B.M., B.A.W. Coller, G.B. Deacon, D.J. Coleman, and P.S. Lake. 1982. Mercury contamination of the Lerderderg River, Victoria, Australia, from an abandoned gold field. Environ. Pollut. 28A 135-147. 

Acknowledgements This project would not have been possible without the support of Gold Fields Australasia Pty Ltd. 

Goldberg, I.S., Abramson, G.J., Haslam, C.O., Los, V.L. 2007. Depletion and enrichment zones in the Bendigo gold field a possible source of gold and implications for exploration. Economic Geology. 102, 745-753. 

Two important, unanswered questions about mesothermal gold deposits include (1) are they zoned chemically and (2) was more than one mineralizing event involved in their formation Studies of the Kolar gold field in India and the Sigma mine in Quebec found that gold fineness increased with depth. The occurrence of ankerite proximal to and calcite distal to gold veins in the HMC deposit has also been noted. 

The study area, Jinwozi gold field, is located at the boundary of Xinjiang and Gansu provinces in northwestern China... 

Anon., Gold from Russia s Muruntau Deposit , Comolidated Gold Fields Report Coal, Gold and Base Metals, 1978,... 

A 1972 description from one of Britain s best-known experts, Timothy Green of Consolidated Gold Fields, Ltd., (2) is instructive on how the illegal flow of gold travels ... 

Clydesdale Bank — directors include George Harvle-Wah Prea. Consolidated Gold Fields. 1973- Chm. Cons. Gold 1980-69. EHr Standard Bank Midland Bank PPSW ChurehllM ftl 45... 

Mono- and di-carbonyls have been formed at the surface of a gold field-emitter tip at room temperature in the presence of an electric field 60 they could be field-desorbed to give gaseous cations carrying one or two charges. The driving force for these reactions was thought to be the local positive... 

Frimmel, H.E., 2005. Archaean atmospheric evolution evidence from the Witwatersrand gold fields, South Africa. Earth Sci. Rev., 70, 1-46. 

Gold has from time immemorial formed one of the principal exports from Tibet. The principal gold-fields are found in the Chang-Tang, or Northern Desert, and also in the territory east of... 

In the face of this attitude of the priests the Government was powerless and, in consequence, one of the richest gold-fields in Tibet, and possibly in Asia, must lie undisturbed for an indefinite aeriod. 

Grandpa McCoy has decided to open up a new Liquid Lightning plant in the California gold fields. He plans to stay in Kentucky, and he must direct operation of the plant using the pony express. It takes two days for a message to be carried in either direction, and a rider arrives each day. 

The economics of smelting very low grade lead concentrates to bullion proved marginal at best, and in early 1998 the plant was used successfully to smelt copper concentrates to produce matte and a discard slag as a means of increasing revenue and profitability. Unfortunately the plant, as part of the Tsumeb complex, remains on cold standby following closure in March 1998 when Gold Fields of Namibia ceased operations. 

Recovery of zinc was not required by Gold Fields of Namibia and the slag contains approximately 11% zinc. Levels below 4% lead are not required in this design in order to minimise fuming of zinc, though in practice, levels of 2% lead were routinely obtained. 

G.J. Martin and R. Khoun, Mineralogical Observations of Roaster Feed and Roaster Feed Material , Mineralogical Reference No. ZC96/12. Gold Fields Laboratories Limited, 17 May, 1996. 

Yellow field points represent an attractive van derWaals interaction and gold field points represent hydrophobic centroids. Oxygen atoms are shown in red, nitrogen in blue, and fluorine in pale green. The size of the points is related to the strength of the interaction. 

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