Applied mineral exploration methods, hydrothermal fluids, baro-acoustic decrepitation, CO2 rich fluids #
Newest Topics:

Exploration of the Mt. Boppy Au deposit, NSW

Forensic tests on soil samples

Gold at Okote, Ethiopia


Do IOCG deposits form from CO2 fluids?

How CO2 inclusions form from aqueous fluids (UPDATED)

Understanding heterogeneous fluids : why gold is not transported in CO2-only fluids

Gold-quartz deposits form from aqueous - CO2 fluids: NOT from CO2-only fluids

Discussions why H2 analysis by mass spectrometry is wrong


Kalgoorlie Au data

Sangan skarn Fe deposits, Iran

New models 205 & 216 decreptiometer

Studies of 6 Pegmatite deposits

A study of the Gejiu tin mine, China

Exploration using palaeo-hydrothermal fluids

Using opaque minerals to understand ore fluids

Understanding baro-acoustic decrepitation.

An introduction to fluid inclusions and mineral exploration applications.

 Interesting Conferences:


ECROFI 2021, Reykjavik, Iceland

SGA, Rotorua NZ, RESCHEDULED to march 28-31 2022
6th Archean, Perth, W.Aust. RESCHEDULED unknown date 2022

Comprehensive Geology Conference Calendar

Additional data about how many  fluid inclusions in a sample actually decrepitate on heating?

In the previous discussion, only one of the 4 samples studied was described. The full data for all 4 samples is presented here.

All of the samples were collected from the Pine Creek region, 200 Km south of Darwin, NT, Australia. This region has been an area of minor gold production since the mid 1800's.

PCB4 contains CO2 rich fluid inclusions and has quite intense decrepitation.

pcb4 - microphoto

pcb4 cumfreq plot

PCB5 contains essentially no CO2 rich fluid inclusions.

pcb5 microphoto

pcb5 cumfreq plot

PCE3 contains a small number of gas rich CO2 fluid inclusions.

pce3 cumfreq plot

PCE15 contains no CO2 rich fluid inclusions.

pce15 cumfreq plot

Back to the fluid inclusion abundance discussion