Ore Textures & Breccias: Recognition Techniques


This three-day course covers the fundamentals of textural observation and interpretation in mineralised hydrothermal systems.

The techniques used are simple, highly effective and require no specialised equipment for their implementation. The techniques are also extremely practical in that they generate numerous questions concerning the mineralisation being studied and commonly provide vectors toward mineralisation for drill testing.



The course uses an extensive suite of specimens from mineral systems around the world to consider critical evaluation factors, including:

  • Infill: Recognition Criteria
  • Alteration: Recognition & Evaluation
  • Channelways: Recognition Criteria
  • Overprinting and Paragenesis: Recognition & Sequencing Criteria
  • Breccia: Recognition Criteria
  • Breccia: Rudimentary Classification system
  • Tectonic Breccia Systems
  • Intrusive Breccia Systems
  • Paragenetic Core Logging

This is a Level 4 (Honours) course suitable for early career geoscientists.

Participants will be working alongside JCU geoscience honours students.

This course includes assessment (optional for non-JCU delegates).

Course Leader: Gavin Clarke

Gavin has over three decades experience presenting training courses on  the recognition of critical alteration and textural features in mineralised systems.
Gavin completed his PhD under the supervision of Dr Roger Taylor and spent many years working with Roger and delivering courses to undergraduate and post-graduate students, and to industry professionals in Australia and overseas.  He has also spent many years exploring for mineralised systems, with a focus on gold and base metal mineralisation associated with intrusions.

Dates & Registration

Delivery   Face-to-face over 3 consecutive days

Location  JCU Townsville, Bebegu Yumba Campus

Course Leader  Dr Gavin Clarke

Dates & Times  


9:00am to 5:00pm daily

Professional Development  18 hours

Participation in this course may contribute to the Continued Professional Development (CPD) requirements of professional institutes.

Registration Fees

Fees per module
AUD inclusive of GST

EGRU Member              $990.00
Non Member               $1650.00
AIG Member                $1400.00
Student                           $330.00

Payment & Cancellation Policy

Confirmation Date  TBC

Please register your interest in attending this course.


We acknowledge Aboriginal People and Torres Strait Islander People as the first inhabitants of the nation, and acknowledge Traditional Custodians of the Australian lands where our staff and students live, learn and work. Aboriginal and Torres Strait Islander peoples are advised that this site may contain names, images or voices of people who have passed away.