back to projects

CMIC – Copper Exploration Footprints: Highland Valley Copper Porphyry

The NSERC-CMIC Footprints Copper sub-project characterized the numerous detectable components that comprise the footprint around the large Highland Valley Copper porphyry system in British Columbia, and produced an integrated, multi-parameter footprint model for porphyry copper systems. The project is part of the NSERC-CMIC Footprints research network, one of the largest mineral exploration research project ever run in Canada. MDRU was a co-leader of this project.

Project Information

Ore Deposit:
Commodity:
Research Themes: ,
Location:
Highland Valley Copper Mine, BC
Project Status:
Researchers:
  • Robert Lee
  • Peter Winterburn
  • Craig Hart

Students:
  • Rachel Chouinard
  • Guillaume Lesage

Start Date: 2014
End Date: 2018

The CMIC-Copper project characterized the numerous detectable components that comprise the footprint around the large Highland Valley Copper (HVC) porphyry system.

The mineralization that comprise the many deposits within the system are within a granitoid batholithic complex in a structurally-complex setting. Research will focus on:

  • defining the alteration, geochemical, mineralogical and petrophysical footprint patterns that could provide vectors towards the centre of the system;
  • identifying the features of the distal alteration halo and discerning its outermost detectable limit beyond the economic mineralized zones;
  • investigating the geophysical signatures of the system and its footprint characteristics through refined analysis and modeling of existing and new geophysical surveys,
  • establishing links between observable, analytical and remotely detectable features such as petrophysical characteristics of different alteration types;
  • establishing derivative responses of footprint features in the overlying surficial environment, and
  • using the above results to produce an integrated multi-parameter footprint model for porphyry copper systems.

MDRU had responsibility for several aspects:

Data Integration

In addition to acquiring baseline geological information, MDRU coordinated new geologically-controlled sampling and data acquisition to ensure a consistent approach to data collection. Robert Lee has the main goal task to integrate the geological, structural, mineralogical, geochemical, geophysical, and physical rock property data for the HVC area – essential for the creation of a constrained 3D geological model which will provide a foundation of other data sets.

Publications

Geophysical inversion contributions to mineral exploration: Lessons from the Footprints project
Marc Alexandre Vallée; , William A. Morris, Stéphane Perrouty; , Robert G. Lee, Ken Wasyliuk, Julia J. King, Kevin Ansdell, Reza Mir, Pejman Shamsipour, Colin Farquharson, Michel Chouteau, Randolph J Enkin, Richard S. Smith https://www.nrcresearchpress.com/doi/10.1139/cjes-2019-0009#.XMXP87h7mM8

Architecture of the Highland Valley Porphyry Copper System Through Time

This PhD Guillaume Lesage at MDRU (paralleled by Kevin Byrne at the UAlberta) developed the understanding of the Highland Valley hydrothermal system and its geological architecture. Project focused on geological mapping and reconstruction of the intrusive system to establish the geological, structural and alteration framework of the host rocks and establish the controls on fluid flow.

Publications

Interpreting regional 3D fault networks from integrated geological and geophysical data sets: An example from the Guichon Creek batholith, British Columbia
G Lesage, K Byrne, WA Morris, RJ Enkin, RG Lee, R Mir, CJR Hart
Journal of Structural Geology 119, 93-106

Variability of outcrop magnetic susceptibility and its relationship to the porphyry Cu centers in the Highland Valley Copper district.
K Byrne, G Lesage, WA Morris, RJ Enkin, SA Gleeson, RG Lee
Ore Geology Reviews 107, 201-217

Petrogenesis and magmatic evolution of the Guichon Creek batholith: Highland Valley porphyry Cu±(Mo) district, south-central British Columbia
M D’Angelo, A Miguel, P Hollings, K Byrne, S Piercey, RA Creaser
Economic Geology 112 (8), 1857-1888

Large-Scale Sodic-Calcic Alteration Around Porphyry Copper Systems: Examples from the Highland Valley Copper District, Guichon Batholith, South-Central British Columbia
K Byrne, G Lesage, SA Gleeson, RG Lee
Geoscience BC Summary of Activities 2016, 213-222
http://cdn.geosciencebc.com/pdf/SummaryofActivities2016/SoA2016_Byrne.pdf

Surficial Geochemistry

An MSc study by Rachel Chouinard assessed the geochemical footprint of buried mineralization utilizing a range of conventional and unconventional geochemical and microbiological techniques and evaluated the responses in the glacial till in conjunction with the ongoing geological and lithogeochemical studies.

Surficial geochemical tools for Cu-Mo porphyry exploration in till-covered terrain
Rachel L.M. Chouinard, MSc thesis, 2018
Download pdf from UBC Circle https://open.library.ubc.ca/cIRcle/collections/ubctheses/24/items/1.0370934

Abstract
As the discovery of porphyry Cu deposits from outcropping mineralised or altered bedrock decreases, mineral exploration is required to adapt new strategies and techniques for exploring
deeper. This is especially important in areas with disconnected transported cover, such as the Quaternary glacial sediments that cover much of Canada.
Surficial geochemical exploration strategies to detect the presence of known bedrock mineralisation through transported cover were evaluated at two buried porphyry Cu-Mo targets, Highmont South and J.A., at Highland Valley Copper. The Highmont South target subcrops below 2‒10 metres of till, whereas the J.A. target is concealed by sequences of pre-Quaternary to Holocene sediments up to 347 metres in thickness. Detailed surficial mapping at both targets followed by upper B horizon soil sampling, physicochemical measurements, profile sampling, biogeochemical sampling, and installation of soil hydrocarbon collectors was undertaken to characterise the mineralogical and chemical changes that develop in the surficial environment after glacial dispersal and soil development.
Anomalous Cu, Mo, Ag, Bi, Sb, As, and W in upper B horizon soils overlying mineralisation at Highmont South is attributed to local glacial transport of weathered porphyry material. Anomalous Cu, Ag, Sb, and W in upper B horizon soils above the West Highmont fault, which crosscuts mineralisation, is attributed to metal-bearing groundwater migrating along the fault. Vegetation uptake and cycling is responsible for elevated concentrations of Mo in lodgepole pine needles sampled from trees growing above and proximal to mineralisation, as well as contributing to elevated soil Mo concentrations in the corresponding area. A response of long-chain normal alkane hydrocarbons is identified in the soil overlying mineralisation and the West Highmont fault.
There is no evidence for a surficial geochemical response to deeply buried mineralised bedrock at J.A. Surficial geochemistry is controlled by differences in several surficial material types, both glacial and post-glacial, as well as hydromorphic processes and potential anthropogenic influences.  A potential surficial signal generated by vertical ion migration from underlying bedrock could be confounded by a number of factors including: the thickness of cover, low porosity and permeability of the pre-Quaternary sequences, the high variability of surficial material types, and/or anthropogenic influences.

 

Publications

 

For more information on the NSERC-CMIC Industrial Research Network, visit: cmic-footprints.laurentian.ca

Project News

Project Documents

Theses - You must be logged in as a member to see these documents

Publications

Maps

Download Protected Files