Perkins, W. 2008. Some Frequently Asked Questions about the Mount Isa Deposit, and Enigmatic Textures of the Ores. In: (Eds.) Gideon Rosenbaum, Declan De Paor, Daniel Köhn, Guiting Hou, and Talat Ahmad, General Contributions, Journal of the Virtual Explorer, Electronic Edition, ISSN 1441-8142, volume 28, paper 1, doi:10.3809/jvirtex.2008.00187
Some Frequently Asked Questions about the Mount Isa Deposit, and Enigmatic Textures of the Ores
Abstract
There is ongoing debate about the relative and absolute timing of formation of the Mount Isa copper and lead-zinc orebodies. This paper provides additional examples to support those illustrated in Perkins (1997,1998) and Perkins et al. (1998), which argued that these ore systems were cogenetic and formed late in the main deformation event which affected the mine environment (D3). This is done in terms of key questions which are often asked about the deposit, particularly in a regional context.
Table of Contents
- Introduction
- FAQ-1. What is the nature of the "tuff marker beds"?
- FAQ- 2. What is the nature of the Paroo/Basement fault in the Mine?
- FAQ- 3. Do the mineral assemblages of successive vein generations reflect the fluid compositions at different stages?
- FAQ- 4. How do the outer limits of lead-zinc orebodies fade out?
- FAQ-5. What observations and data are relevant to the relationship between fine-grained pyrite and the economic ores?
- References