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