GSN Virtual Talk:  FRIDAY, FEBRUARY 19, 2021

Zoom Opens @ 6:15 PM,  Talk begins @ 6:30 PM (Pacific)

(Zoom login details can be found below.)

Guest Speaker:  Dr. Zhaoshan Chang

Charles F. Fogarty Endowed Chair and Professor in Economic Geology, Department of Geology and Geological Engineering, Colorado School of Mines and

2020 SEG International Exchange Lecturer

Title: “Skarns: Zoning Patterns and Controlling Factors


Skarns are one of the most common deposit types with significant economic values, and they are typically part of magmatic hydrothermal systems. Skarns may extend towards the causative intrusions to porphyry or greisen deposits, and towards distal locations to carbonate replacement deposits and farther away to Carlin- or Carlin-like deposits. For the exploration of skarn and related deposits, zoning is an effective tool. In addition, in skarn-porphyry districts there are typically many intrusions. To identify the causative intrusion, zoning is an important, sometimes the only tool. In this presentation, zoning patterns in both alteration and mineralization will be summarized and explained.

Date/Time: February 19, 2021 at 6:15 PM Pacific Time (US and Canada)

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Meeting ID: 830 7398 5471

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02/19/2021 18:30:0002/19/2021 20:30:00America/Los_AngelesGSN Membership Meeting – Friday, Feb. 19, 2021 @ 6:30 p.m.Reno, NV
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