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Environmental assessment: a new experience
By I. J. Brown
Paper prepared for presentation at Industrial minerals and the environment, held in Leeds, 24-35 September 1990. The need to submit an environmental statement (EIS) has certainly increased the workloa
Jan 1, 1991
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High-temperature mine climate simulation model for predicting the effect of mine fire
By P. Mousset-Jones, G. Danko
Variations of the temperature and steam/moisture content of the air with distance and time are modelled for a single airway. The input for the simulation is an air temperature that varies with time, t
May 1, 1991
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Prospecting for natural zeolites: exploration model based on an occurrence in 300 m.y. old rocks near Werris Creek, New South Wales, Australia
By P. G. Flood
A simplified conceptual model shows how the arc flank to arc fringe areas adjacent to ignimbritic centres form a prospective zone for natural zeolites. Large alkaline lakes that serve as the repositor
Jan 1, 1991
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Significance of pre- or syntectonic origin for certain iron ores hosted in banded iron formation
By D. C. Goldring
Many high-grade iron ores are considered to result from the supergene enrichment of banded iron formations. The secondary processes may be related to either present-day or ancient erosion cycles and m
Jul 1, 1991
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Catalytic effects in CaO-enhanced reduction of copper sulphide: Cu2S-CaO-C system
By M. Moinpour, Y. K. Rao
The catalysed direct reduction of copper sulphide with carbon and lime was investigated in the range 850-1000 degrees C using Cu2S-CaO-C and Cu2S-4CaO-4C reaction mixtures. The effects of the catalyti
Jul 1, 1991
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Remote sensing, geobotany and biogeochemistry in detection of Thalanga zinc-lead-copper deposit near Charters Towers, Queensland, Australia
By M. M. Cole
An assessment of the combined application of remotely sensed satellite imagery, geobotany and biogeochemistry reveals the complementary value of these techniques in the Thalanga area. The SPOT imagery
Jan 1, 1991
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A decade of regional geochemistry in China: the National Reconnaissance Project
By Xuejing Xie, Tianxiang Ren
Paper presented at the 28th International Geological Congress held in Washington DC, July 1989 (International geochemical mapping sessions). Standardised stream-sediment sampling procedures have been
May 1, 1991
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Microchemical characterization of alluvial gold from Scotland
By M. T. Styles, E. Condliffe, R. C. Leake, R. J. Chapman, D. J. Bland
Paper presented at Mineralisation in the Caledonides, the Mike Gallagher memorial meeting held in Edinburgh, 27-28 June 1996. Quantitative point analysis and microchemical mapping identified 52 differ
Jun 19, 1905
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Investigation of blasting parameters to optimize fragmentation
By O. Dojcar
The results of a laboratory investigation of rock fragmentation conducted with a model material were partially verified under field conditions. The object of the investigation was to study the qualita
Jan 1, 1991
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Numerical modelling for underground excavation design
By M. W. Grabinsky, M. S. Diederichs, E. Hoek
Provided that they are used correctly, numerical models can be of considerable assistance to mining engineers in designing underground excavations. Guidance is given to the engineer or geologist who i
Jan 1, 1991
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Fluid inclusion study of the unexposed Kentstown Granite, Co. Meath, Ireland
By M. Feely, W. G. O'Keefe, C. O'Reilly, M. P. Holdstock
A petrographic and microthermometric study of fluid inclusions in the Kentstown Granite, crosscutting quartz (VI) and calcite+quartz (V 2) veins in the granite and calcite+quartz (V 2) veins in the ov
Jun 19, 1905
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Ore reserves: the mining aspects
By H. K. Taylor
Ore reserves are inadequately defined. Geological reconnaissance and pre-feasibility mining work generate a broad range of valid tonnage estimates, many published for the benefit of various interests,
Sep 1, 1991
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Selective chlorination of iron from synthetic pseudobrookite
By F. C. Gennari, D. M. Pasquevich
With the gradual exhaustion of natural rutile, there has been extensive research into its synthesising from lower-grade titanium minerals. The removal of Fe from pseudobrookite (Fe2TiO5) by chlorinat
Jun 21, 1905
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Processes for reducing zinc from slags using on iron-carbon melt
The reduction of zinc from slags by a molten, carbon-saturated bath was examined in a laboratory study under conditions of continuous slag feeding. The results show that it is possible to reduce the b
Jul 1, 1991
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Cu-Ni-PGE mineralization hosted by bonitic gabbro, central Norwegian Caledonides: character and tectonic setting
By T Grenne, R. B. Larsen
Paper presented at the conference on Economic geology in Europe and beyond II, models for mineral deposits in sedimentary basins, held in Keyworth, UK, 13-14 April 1994. Paper originally entitled: Pro
Aug 1, 1995
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Freeze-sampling method of collecting drainage sediments for gold exploration
By J. S. Coats, G. E. Patts, N. Hughes
Conventional sampling methods are known to suffer from the variable loss of fine gold by elutriation. Freeze sampling yields representative and quantitative data that, when combined with information o
Jan 1, 1991
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Definition of large-scale zones of hydrothermal alteration by geochemical mapping using organic lake sediment
By P. H. Davenport, L. W. Nolan
Paper presented at the 28th International Geological Congress held in Washington DC, July 1989 (International geochemical mapping sessions). Geochemical mapping provides a direct approach to delineati
Jul 1, 1991
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Large deformation analysis for rock excavations - a numerical study
By J. A. Hudson, X. D. Pan
A rock mass responds to excavation according to the properties of the intact rock, the network of contained discontinuities and the susceptibility of the rock mass to weathering. Large deformation oft
Sep 1, 1991
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Earthing practice in metalliferous mining: results of study at Mount Isa mine, Queensland, Australia
By R. Sankey, L. Gatty, F. Bizzozero, G. F. Shannon, F. Savaglio, L. McDonald
State mining regulations in Queensland stipulate that a mine be provided with an earth installed on surface and that all underground equipment that needs to be earthed should be connected via a copper
May 1, 1991
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Potassium, uranium and thorium geochemical maps of the conterminous USA
By J. S. Duval
Paper presented at the 28th International Geological Congress held in Washington DC, July 1989 (International geochemical mapping sessions). The compilation of the National Uranium Resource Evaluation
Jul 1, 1991