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TABLE OF CONTENTS
VOL. 52, NO. 2 FEBRUARY 2000 |
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COVER STORY
COVER — Opera- tors, suppliers and academe: For R&D, who should pay and how much? We will take a look. And we detail factors to keep costs down on ring gears for ball mills. In technical papers, we will take a look at grinding improve- ments at Tilden. Flotation photo is courtesy of Home- stake Canada. |
FEATURE ARTICLES 15 Maintaining ring gears in ball mills David Kress 19 SME RESEARCH FORUM: Mining technology and research needs - chemical products suppliers' perspective 25 Using option pricing to predict market values of publicly traded mining companies Andrew K. Simpson and Lynn F. Oates 28 Colorado miners discuss challenges of the new century Steve Kral 32 Peru remains committed to its mining industry Steve Kral TECHNICAL PAPERS (peer reviewed and approved) 41 Systems approach to grinding improvements at the Tilden concentrator R.E. McIvor, T.P. Weldum, B.J. Mahoski and R.S. Rasmussen 48 TECHNICAL NOTE Surface mine reserve definition and the high-grading fallacy M. Lemieux 51 Cover system to mitigate ARD in an arid climate - setup of field test plots at BHP Iron Ore's Mt. Whaleback operation M. O'Kane, D. Porterfield, M. Endersby and M.D. Haug |
DEPARTMENTS 4 The drift of things 6 Washington survey 7 Industry newswatch 35 Crossword puzzle 36 Coming events 40 New media 57 SME news/ President's page 58 Rock in the box 59 GEM facts 63 SME awards 72 SME distinguished members 73 AIME awards 77 Employment news 79 Classified ads 90 New products 93 Reader service card
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