Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/118003
Type: Thesis
Title: Identifying and characterising potential pathfinder elements to IOCG style mineralisation on Central-Northern Yorke Peninsula
Author: Custance, K. M.
Issue Date: 2015
School/Discipline: School of Physical Sciences
Abstract: The central Yorke Peninsula in the southern Gawler Craton, South Australia forms the southern extent of the Olympic Copper-Gold Province. The area is known for its iron oxide-copper-gold (IOCG) style mineralisation, yet the pathfinder elements associated with mineralisation and the processes and/or lithological controls effecting the distribution of potential pathfinder elements within mineral phases are poorly understood. Analyses of whole rock geochemical data from basement lithologies identified Au, As, Ag, Bi, Ce, Cu, La, Mo, S and W as pathfinder elements towards potential (IOCG) mineralisation in the area. Mineral phases that preserved these trace element signatures were investigated with SEM back scatter analysis and Laser-Ablation Inductively-Coupled Mass Spectroscopy (LA-ICP-MS) analysis. SEM analyses determined LREE’s are host within bastnäsite, which has a documented occurrence across Yorke Peninsula. Sulphide phases were identified to host elements Ag, As, Au, Bi, Cu, Mo and S. Within pyrite, pathfinder elements are preferentially hosted within inclusion rich areas. Chalcopyrite was determined to host concentrations of Au. A prospectivity index was created for central Yorke Peninsula by combining identified pathfinder elements to create an IOCG index for representative samples. The index highlights an area proximal to the township of Alford as a potential hotspot for mineralisation/exploration within central Yorke Peninsula.
Dissertation Note: Thesis (B.Sc.(Hons)) -- University of Adelaide, School of Physical Sciences, 2015
Where: Gawler Craton, Yorke Peninsula, South Australia
Keywords: Honours; Geology; Iron oxide-copper-gold (IOCG); Whole rock geochemistry; geochemical vectors; mineral hosts; pathfinder elements; central Yorke Peninsula
Description: This item is only available electronically.
Provenance: This electronic version is made publicly available by the University of Adelaide in accordance with its open access policy for student theses. Copyright in this thesis remains with the author. This thesis may incorporate third party material which has been used by the author pursuant to Fair Dealing exceptions. If you are the author of this thesis and do not wish it to be made publicly available, or you are the owner of any included third party copyright material you wish to be removed from this electronic version, please complete the take down form located at: http://www.adelaide.edu.au/legals
Appears in Collections:School of Physical Sciences

Files in This Item:
File Description SizeFormat 
01frontGeoHon.pdf550.85 kBAdobe PDFView/Open
02wholeGeoHon.pdf6.63 MBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.