Skip to main content

LUP Student Papers

LUND UNIVERSITY LIBRARIES

The Kalgoorlie gold : a review of factors of formation for a giant gold deposit

Fullerton, Wayne LU (2013) In Dissertations in Geology at Lund University GEOL01 20122
Department of Geology
Abstract
The Archaean Yilgarn craton in Western Australia is a granite greenstone belt with abundant economically important mineral reserves, including several world-class gold deposits such as the giant Kalgoorlie deposit.

Structural controls on gold deposition and the fact that most deposits were formed later in the craton’s tectonic history, has resulted in the general acceptance of a late-orogenic structurally-controlled model for gold mineralization in the Yilgarn craton. However the early establishment of fracture networks and conduits for vertical fluid transport during D1 are considered integral for formation of the Kalgoorlie deposit. This structural evidence has led to contrasting
theories on the timing of formation of the Kalgoorlie... (More)
The Archaean Yilgarn craton in Western Australia is a granite greenstone belt with abundant economically important mineral reserves, including several world-class gold deposits such as the giant Kalgoorlie deposit.

Structural controls on gold deposition and the fact that most deposits were formed later in the craton’s tectonic history, has resulted in the general acceptance of a late-orogenic structurally-controlled model for gold mineralization in the Yilgarn craton. However the early establishment of fracture networks and conduits for vertical fluid transport during D1 are considered integral for formation of the Kalgoorlie deposit. This structural evidence has led to contrasting
theories on the timing of formation of the Kalgoorlie gold. It also suggests that the factors of formation of the Kalgoorlie gold are possibly different from those of other gold deposits in the Yilgarn.

This review paper suggests that the major factors of formation of the giant Kalgoorlie deposit include: 1. Host rock characteristics, such as the anomalous thickness resulting from regional deformation during D1, as well as competency contrasts which increases permeability and thus ore fluid infiltration; 2. Deformational movement creating structural controls and pathways for large-scale fluid transport and efficient fluid focusing, as well as resulting in suitable sites for gold deposition, such as breccias and quartz veins; 3. A protracted mineralization period spanning up to 45 million years, resulting in prolonged periods of fluid focusing and gold deposition. However none of these factors are considered solely responsible for producing a world-class gold deposit. Instead it is suggested that favourable conditions for several factors occurred in conjunction to produce a highly efficient fluid focusing system, and thus the giant Kalgoorlie deposit. (Less)
Please use this url to cite or link to this publication:
author
Fullerton, Wayne LU
supervisor
organization
course
GEOL01 20122
year
type
M2 - Bachelor Degree
subject
keywords
Kalgoorlie, Yilgarn, gold, mineralisation
publication/series
Dissertations in Geology at Lund University
report number
334
language
English
id
3731953
date added to LUP
2013-04-29 09:08:40
date last changed
2013-04-29 09:08:40
@misc{3731953,
  abstract     = {The Archaean Yilgarn craton in Western Australia is a granite greenstone belt with abundant economically important mineral reserves, including several world-class gold deposits such as the giant Kalgoorlie deposit.

 Structural controls on gold deposition and the fact that most deposits were formed later in the craton’s tectonic history, has resulted in the general acceptance of a late-orogenic structurally-controlled model for gold mineralization in the Yilgarn craton. However the early establishment of fracture networks and conduits for vertical fluid transport during D1 are considered integral for formation of the Kalgoorlie deposit. This structural evidence has led to contrasting
theories on the timing of formation of the Kalgoorlie gold. It also suggests that the factors of formation of the Kalgoorlie gold are possibly different from those of other gold deposits in the Yilgarn.

 This review paper suggests that the major factors of formation of the giant Kalgoorlie deposit include: 1. Host rock characteristics, such as the anomalous thickness resulting from regional deformation during D1, as well as competency contrasts which increases permeability and thus ore fluid infiltration; 2. Deformational movement creating structural controls and pathways for large-scale fluid transport and efficient fluid focusing, as well as resulting in suitable sites for gold deposition, such as breccias and quartz veins; 3. A protracted mineralization period spanning up to 45 million years, resulting in prolonged periods of fluid focusing and gold deposition. However none of these factors are considered solely responsible for producing a world-class gold deposit. Instead it is suggested that favourable conditions for several factors occurred in conjunction to produce a highly efficient fluid focusing system, and thus the giant Kalgoorlie deposit.},
  author       = {Fullerton, Wayne},
  keyword      = {Kalgoorlie,Yilgarn,gold,mineralisation},
  language     = {eng},
  note         = {Student Paper},
  series       = {Dissertations in Geology at Lund University},
  title        = {The Kalgoorlie gold : a review of factors of formation for a giant gold deposit},
  year         = {2013},
}