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

Thermodynamics shows Au is insoluble in CO2 fluids

Do IOCG deposits form from CO2 rich fluids?

Inclusion shapes can prove heterogeneous 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

Why don't Exploration geologists understand fluid inclusions?


New model 205 decreptiometer

Studies of 6 Pegmatite deposits

A study of the Gejiu tin mine, China

Data on MVT Pb-Zn deposits, Tunisia

Data from Hall and Mt Hope Mo, Nevada

A magnetite study - Bergslagen region, Sweden

Exploration using palaeo-hydrothermal fluids

Using opaque minerals to understand ore fluids

Decrepitation using Fe-oxide opaques

Understanding baro-acoustic decrepitation.

An introduction to fluid inclusions and mineral exploration applications.

 Interesting Conferences:

Futores II, June 4-7, Townsville, Australia

ECROFI 2017, June 23-29, Nancy, France

AOGS 14th, Aug 6-11, Singapore

SGA 2017, Aug. 20-23, Quebec city, Canada

SEG 2017, Sept. 17-20, Beijing, China

Exploration 17, Oct. 21-25, Toronto, Canada

AAG 2017 at RFG2018, June 16-21 2018, Vancouver, Canada

Comprehensive Geology Conference Calendar

The BGS model 205 decrepitometer

March 2017

Because the model 105 decrepitometer requires an old PC computer with an ISA card slot (now superseded), the decrepitometer instrument has been redesigned and the software re-written to operate on a standard single-board Linux computer. This system uses the same furnace, sample tube assembly and power control unit as the model 105 instrument.

It operates in the same manner as the previous model 105. But the software has been updated to be more convenient and has a fully graphical interface. The temperature and counts are monitored and shown on screen during the analysis, and simultaneously plotted on screen. The data is saved to a file upon completion, and the graphical plot can also be printed if required and easily regenerated from the saved data file.

The decrepitometer has been rebuilt to operate on a stand-alone Linux (ARM) single-card computer. The computer connects to a standard computer monitor, keyboard and mouse and includes network connection. The computer and interface is in a compact 10 * 12 * 5 cm enclosure.

The computer and interface electronics unit.

decrepitometer 205 computer unit

The furnace and control unit is the same as used in the model 105 decrepitometer.

furnace and control unit

This is a screen-capture of the model 205 instrument interface.

model 205 instrument interface

Back to the decrepitation contents