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Van Tuyl Lecture: Jeff Chaumba, University of North Carolina at Pembroke

April 5, 2018 @ 4:00 pm - 5:00 pm

Jeff Chaumba, University of North Carolina at Pembroke

Van Tuyl Lecture, BE 241, 4 PM

Topic: Precambrian Layered Mafic Intrusions (?) of the Zimbabwean Craton: Their Economic Importance and Origin

Abstract: The Zimbabwean craton contains the classic Great Dyke, as well as a host of numerous other relatively large Precambrian layered intrusions (?), the majority of which contain significant chromite, platinum-group elements (PGE), gold, and chrysotile asbestos deposits. With the exception of the Great Dyke, recent results from chromite chemistry suggest that the other major ‘intrusions’ may have originated in island arc settings. Although PGE mineralization in the Great Dyke has been thought to be been formed dominantly due to magmatic processes, recent investigations suggest wide-scale remobilization and concentration of the PGEs due to hydrothermal fluids.

Bio: Jeff Chaumba was born, and grew up, in the mineral resources-rich region of southern Africa near a phosphate mine where he got to know about geology when he was  still in elementary school. He attended University of Zimbabwe and he organized his first field trip to the Great Dyke as a leader of the student geological society in the Department of Geology, University of Zimbabwe. Since then, Jeff has maintained a strong interest in layered intrusions. He has already visited the big three (Bushveld Complex, Stillwater Complex, and Great Dyke), and wishes to visit more other ‘smaller ones’ in the future. Jeff later studied at University of the Witwatersrand in Johannesburg and University of Kwazulu-Natal  in South Africa and worked both as a mining and an exploration geologist for various companies in Southern Africa. Jeff married Josphine Chaumba, a social worker, in 2000 and they came to the great US in 2002. Jeff did a second MS on the Pittsburgh Coal Basin (hydrogeology) at West Virginia University to gain some insight into acid mine drainage, and a PhD on ‘ophiolites’ of the southern Appalachians at University of Georgia. His primary interest is in economic geology, although Jeff’s interests span a wide range of topics in geology. Since graduating in 2009, Jeff has taught mostly at the undergraduate level at several universities such that he thought he was experienced enough to write an introductory geology textbook and signed a book contract with Kendall Hunt in 2016. He is now on the 5th of 15 chapters of the textbook. Jeff and Josphine are blessed with 3 boys who are quite a handful.

Details

Date:
April 5, 2018
Time:
4:00 pm - 5:00 pm
Event Category:
Event Tags:
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Venue

Berthoud Hall
1516 Illinois St.
Golden, CO 80401 United States
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