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

Viewpoints:

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



News:

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:

-----2021-----

ECROFI 2021, Reykjavik, Iceland

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


Comprehensive Geology Conference Calendar


Chert


Chert gives little or no decrepitation at all, in contrast to most vein quartz and this can be useful to discriminate between them. The Cosmo Howley and Enterprise are gold mines hosted in proterozoic sediments in NT, Australia and the Victory gold mine is hosted in Archaen greenstones near Kalgoorlie, WA. In each mine the cherts are easily discriminated from the gold bearing quartz veins using decrepitation. In theory, mapping should permit recognition of these sample types, but in practice many misclassifications of the samples have occurred, highlighting the need for a technique such as decrepitation. One sample of ore bearing vein quartz from the Victory mine is included for comparison. Note also the prominent low temperature peak on this sample, caused by CO2 rich inclusions.

Location map of Australian deposits


 
 

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