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

New model 216 decreptiometer

Exploration of the Mt. Boppy Au deposit, NSW

Forensic tests on soil samples

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:

Gold at Okote, Ethiopia

Kalgoorlie Au data

Sangan skarn Fe deposits, Iran

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:

-----2023-----

ECROFI Iceland
     July 2-6

AOGS Singapore
    30 Jul - 4 Aug 2023

SGA Zurich Aug 2023


Comprehensive Geology Conference Calendar


Sample information - Southern Cross region decrepitation samples

Golden Pig mine

H857 Sample# 1551A Kal94 0.5g -420+200u
Golden Pig mine, Southern Cross, barren qtz in GD fault
milky white qtz

H858 Sample# 1551B Kal94 0.5g -420+200u
Golden Pig mine, Southern Cross, barren qtz in GD fault
milky white qtz, ferruginous stained

H860 Sample# 1551C Kal94 0.5g -420+200u
Southern Cross - Golden pig - pit access to decline, GD fault, barren qtz
milky white qtz, much ferrug. stains, fractured

H861 Sample# 1552A Kal94 0.5g -420+200u
Southern Cross - Golden pig - 4 sublevel, BIF ore/chert
semi transl med grain brown qtz, same face as sample 1552B

H862 Sample# 1552B Kal94 0.5g -420+200u
Southern Cross - Golden pig - 4 sublevel, BIF ore/chert
semi transl med grain brown qtz, same face as sample 1552B

H863 Sample# 1552C Kal94 0.5g -420+200u
Southern Cross - Golden pig - 4 sublevel, flat qtz/BIF - second face, ore
semi transl gy qtz+ 50% chl/amphib banded BIF

H864 Sample# 1552D Kal94 0.5g -420+200u
Southern Cross - Golden pig - 4 sublevel, flat qtz/BIF - second face, ore
semi transl bn-gy qtz + 50% chl/amphib banded BIF

H865 Sample# 1553A Kal94 0.5g -420+200u
Southern Cross - Golden pig - 4 sublevel, east ore face. (E & W lodes 30m apart
semi transl gy qtz, fibrous, East lode

H866 Sample# 1553B Kal94 0.5g -420+200u
Southern Cross - Golden pig - 4 sublevel, east ore face. (E & W lodes 30m apart
semi transl bn qtz, med. grain, East lode

H867 Sample# 1553C Kal94 0.5g -420+200u
Southern Cross - Golden pig - 4 sublevel, east ore face. (E & W lodes 30m apart
semi transl gy/bn qtz, 2cm thick, East lode

H868 Sample# 1553D Kal94 0.5g -420+200u
Southern Cross - Golden pig - 4 sublevel, east ore face. (E & W lodes 30m apart
semi transl dk gy qtz, much amphibole etc , East lode

H869 Sample# 1553E Kal94 0.5g -420+200u
Southern Cross - Golden pig - 4 sublevel, east ore face. between E & W lodes
semi transl pl gy qtz, med grained

H870 Sample# 1553F Kal94 0.5g -420+200u
Southern Cross - Golden pig - 4 sublevel, east ore face. between E & W lodes
semi transl gy qtz, cse grained, thin vein (1cm)

Bullfinch - Copperhead pit

H871 Sample# 1554A Kal94 0.5g -420+200u ACID WASHED
Southern Cross Area - bullfinch, Copperhead pit, -330m level pit floor
Massive milky gy/wh qtz, trace CO3=

H872 Sample# 1554B Kal94 0.5g -420+200u ACID WASHED
Southern Cross Area - bullfinch, Copperhead pit, -330m level pit floor
Massive milky gy/wh qtz, trace CO3=

H873 Sample# 1554C Kal94 0.5g -420+200u ACID WASHED
Southern Cross Area - bullfinch, Copperhead pit, -330m level pit floor
Massive milky gy/wh qtz, minor CR

H874 Sample# 1554D Kal94 0.5g -420+200u
Southern Cross Area - bullfinch, Copperhead pit, -330m level pit floor
Massive milky gy/wh qtz, minor CR

H875 Sample# 1554E Kal94 0.5g -420+200u ACID WASHED
Southern Cross Area - bullfinch, Copperhead pit, -330m level pit floor
Massive milky gy/wh qtz, minor CR

H876 Sample# 1554F Kal94 0.5g -420+200u ACID WASHED
Southern Cross Area - bullfinch, Copperhead pit, -330m level pit floor
Massive milky gy/wh qtz, minor CR

H898 Sample# 1554G Kal94 0.5g -420=200u ACID WASHED
Med grained milky grey/white qtz, ??breccia texture?
Copperhead pit, Bullfinch WA, 330m level pit floor at adit entrance level

H899 Sample# 1554H Kal94 0.5g -420=200u ACID WASHED
Massive milky white qtz, CR
Copperhead pit, Bullfinch WA, 330m level pit floor at adit entrance level

H900 Sample# 1554K Kal94 0.5g -420+200u
Med grained semi translucent white qtz, Fe stains
Copperhead pit, Bullfinch WA, 330m level pit floor at adit entrance level

H901 Sample# 1554L Kal94 0.5g -420+200u
Cse grained semi translucent white qtz, Fe stains
Copperhead pit, Bullfinch WA, 330m level pit floor at adit entrance level

H902 Sample# 1554M Kal94 0.5g -420+200u ACID WASHED
Cse grained milky gy/white qtz, CR selvages
Copperhead pit, Bullfinch WA, 330m level pit floor at adit entrance level

H903 Sample# 1554N Kal94 0.5g -420+200u ACID WASHED
Cse grained semi translucent white/pale grey qtz, banded, S=
Copperhead pit, Bullfinch WA, 330m level pit floor at adit entrance level

H904 Sample# 1554P Kal94 0.5g -420+200u ACID WASHED
Cse grained semi translucent grey/dark grey qtz, banded, S=
Copperhead pit, Bullfinch WA, 330m level pit floor at adit entrance level

H905 Sample# 1554R Kal94 0.5g -420+200u ACID WASHED
Very Cse grained semi translucent grey/white qtz, CR, trace S=
Copperhead pit, Bullfinch WA, 330m level pit floor at adit entrance level

H906 Sample# 1554S Kal94 0.5g -420+200u ACID WASHED
Massive milky white qtz, CR
Copperhead pit, Bullfinch WA, 330m level pit floor at adit entrance level

H907 Sample# 1554T Kal94 0.5g -420+200u ACID WASHED
Dark green/grey chloritic amphibole lode
Copperhead pit, Bullfinch WA, 330m level pit floor at adit entrance level