Induced polarization with in-loop transient electromagnetic soundings: A case study of mineral discrimination at El Arco porphyry copper, Mexico

With the inversion of in-loop transient electromagnetic (TEM) soundings over the El Arco porphyry copper deposit in terms of one-dimensional Cole–Cole dispersive models we found that the relationship between the chargeabilities and the time constants shows a fair agreement with the actual mineral co...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied geophysics 2009-07, Vol.68 (3), p.423-436
Main Authors: Flores, Carlos, Peralta-Ortega, Sergio A.
Format: Article
Language:English
Subjects:
Applied geophysics
Earth sciences
Earth, ocean, space
Exact sciences and technology
Induced polarization
Internal geophysics
Mineral discrimination
Porphyry copper
Transient electromagnetic soundings
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:With the inversion of in-loop transient electromagnetic (TEM) soundings over the El Arco porphyry copper deposit in terms of one-dimensional Cole–Cole dispersive models we found that the relationship between the chargeabilities and the time constants shows a fair agreement with the actual mineral concentrations measured in drillhole cores. This is the first reported case of mineral discrimination with this technique. Through a sensitivity analysis we show that these two parameters are the least well resolved.
ISSN:0926-9851
1879-1859
DOI:10.1016/j.jappgeo.2009.03.009