Applied mineral exploration methods, hydrothermal fluids, baro-acoustic decrepitation, CO2 rich fluids
Viewpoints:

How CO2 inclusions form from aqueous fluids

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

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

Inclusion shapes can prove heterogeneous FI trapping

Disproportional FI trapping from heterogeneous fluids explains gas-dominant systems

A discussion of H2 analysis by mass spectrometry

A mechanism to form H2 in the MS ioniser during analyses


News:

Sangan skarn Fe deposits, Iran

New model 205 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:


AGCC expo, Adelaide, Aust. Oct. 14-18 2018

-----2019-----

ECROFI, June 24-26, Budapest, Hungary

AOGS, Singapore, 28 Jul-2 Aug 2019

SGA, Glasgow Scotland, Aug. 27-30 2019


Comprehensive Geology Conference Calendar


The recognition of variations in sample suites using fluid inclusion decrepitation - applications in mineral exploration

Kingsley Burlinson

Memoirs Geological Society of India,  No. 11, (1988)  pp67-78

Abstract

Mineral samples often look identical in hand specimen but contain completely different fluid inclusion populations. The decrepitation method provides a rapid and cheap method of observing the variations in the fluid inclusion populations as a means of discriminating between such similar looking samples. It is possible to use decrepitation on samples of pervasive silicification as well as on quartz veins and comparison of such samples shows the relationship between coexisting veins and silicification. Decrepitation responses from vein quartz and chert at gold mines in the Northern Territory, Australia, are quite different and aid in the geological mapping of the area. Opal samples give a particularly characteristic narrow decrepitation peak while variations between carbonate samples can aid in the discrimination between sedimentary carbonate horizons. Decrepitation differences in magnetite samples at Tennant Creek, N.T., Australia, could not be correlated with the known gold distribution, but do indicate that the ore bodies are quite complex and significantly different from normal sedimentary banded iron formations. Although the method is best used to compare suites of similar samples, in some cases it can also provide an insight into the genesis of the deposits.

Full paper as a pdf file 

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