(520) 322-5773

tgms@tgms.org

Back to All Events

TGMS General Meeting

  • Tucson Gem and Mineral Society 3727 East Blacklidge Drive Tucson, AZ, 85716 United States (map)

FOR: TGMS Members and open to the public!  (Doors open at 6:30p.m.)

 Jan C. Rasmussen, Ph.D.

Jan C. Rasmussen, Ph.D.

GUEST SPEAKER: Jan C. Rasmussen, formerly Jan Wilt, earned a Ph.D. in economic geology from the University of Arizona in 1993 under the direction of John Guilbert and Mary Poulton. She has co-authored 14 books or open-file reports and numerous articles on Arizona geology and has made her publications and presentations available as pdf files on her website www.janrasmussen.com.

 Jan has over 40 years of experience as an economic geologist. She worked for Woodward-Clyde on the Yucca Mountain project in Nevada; for the Arizona Geological Survey on fossil fuels, molybdenum, and uranium; and for SRK Consulting on permitting documents for the closure of BHP’s San Manuel Mine and more recently for Pinto Valley and BHP’s Miami-Globe area closed mines. Jan has also consulted for MagmaChem Exploration in a project on hydrothermal oil in the North Sea for a major Norwegian oil company.

Jan received the SME Individual GEM award in 2010 for her work as Curator of the Arizona Mining and Mineral Museum in Phoenix to educate children about the importance of mining in their lives. Her website www.MiningMineralMuseum.com documents the museum as it was in 2010. Throughout her career, Jan has taught Physical, Historical, and Environmental Geology part time for 14 years at community colleges and universities wherever she worked, most currently at Pima Community College.

Dr. Rasmussen is currently an Associate at SRK Consulting in Tucson, where she writes Canadian National Instrument 43-101 reports and permitting documents, such as Aquifer Protection Permits, for mining clients. She and Stan Keith are currently working on a chapter on Arizona Minerals through Geologic Time for the new 4th edition of the Mineralogy of Arizona.

LECTURE TITLE: “Arizona Minerals through Geologic Time”

Most collectible minerals are formed during mountain building episodes called orogenies. There were 8 major orogenies that made Arizona minerals and each had at least four phases/components: gold-copper, lead-zinc-silver, copper, and tungsten or gold that overprinted each other. This rich geologic history makes Arizona an excellent hunting ground for mineral collectors. 

Refreshments served.

For more information, contact the TGMS office.

Earlier Event: August 18
TGMS Members August Potluck