Instructor: Dr. John L. Lufkin
Ph.D., Stanford University
Aug 6-11, 2012 Geology of Ore Deposits
Aug 13-17, 2012 Ore Mineralogy & Microscopy
Prerequisites: Mineralogy course, or consent of the Instructor
Registration: $500 per course if registered before July 1; after that date, $750.
Materials: Each participant will receive a course manual with cost of
registration and a Certificate of Completion.
Marcasite, Bessie G mine, LaPlata, Colorado.
Rim replacement of chalcopyrite (yellow) by covellite,
Morenci, Arizona.
Color-zoned sphalerite with pyrite, Mina Plomosas, Mex.
Vermicular intergrowth of bornite (bn) and chalcocite (cc),
Salobo, Brazil IOCG deposit.
Course Schedules
Geology of Ore Deposits; Textbook, Geology of Ore Deposits, John Lufkin, in prep.
This class will meet 5 days, followed by a field trip to Cripple Creek gold and/or Climax
molybdenum mines. Each class will run from 9 to 5, with an hour off for lunch. Half hour powerpoint lectures will be followed by discussions and lab work, using appropriate maps and rock
samples.
Monday: Review basic concepts and principles: fluid inclusions; stable isotopes; ore mineralogy;
alteration patterns; interpretation of ore textures; zoning and paragenesis.
Tuesday: Classification of ore deposits; magmatic sulfide deposits; deposits in mafic and
ultramafic rocks.
Wednesday: Skarn deposits; volcanogenic massive sulfide deposits; sediment-hosted
deposits
Thursday: Precambrian iron formations (BIF); iron oxide-copper-gold (IOCG) deposits; black
smokers
Friday: Gold deposits; pegmatites.
Saturday: Field trip to Cripple Creek gold deposit and/or Climax porphyry molybdenum deposit.
Ore Mineralogy & Microscopy; Textbook, Ore Mineralogy & Microscopy, John Lufkin, in
prep.
This class will meet 5 days a week, 9 to 5 with an hour off for lunch. Half hour power-point
lectures will be presented, followed by discussion and microscope work.
Monday: Introduction; the ore microscope; preparation of polished thin sections; study of ores
collection*
Tuesday: Ore mineralogy; qualitative methods of mineral identification; study of ores collection.
Wednesday: Interpretations of ore textures; paragenesis and zoning; study of ores collection.
Thursday: Study of ores collection.
Friday: Study of ores collection; photomicroscopy.
* Ores collection consists of polished sections from a wide variety of deposits, including
Bingham Canyon, UT; Santa Rita, NM; Stillwater Complex, MT; Duluth Complex, MN; Eagle NiCu deposit, MI; Kidd Creek Pb-Zn, ONT; Homestake gold, SD; Iron Springs, UT; Climax moly,
CO; Tilden BIF, Marquette, MI; Sudbury Cu-Ni, ONT; Buick Pb mine, MO; Mina Plomosas PbZn, Mexico; Morenci, AZ, Butte, MT; Ray, AZ, Red Dog Pb-Zn, Alaska; Salobo IOCG, Brazil;
Olympic Dam IOCG, Australia; Eskay Creek gold, BC; Cripple Creek gold, CO.
For further information, please contact Dr. Lufkin, lufk3@comcast.net, or 303-593-0975.
Courses are limited to 10 participants.