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 - Coolgardie region decrepitation samples

Unmineralized veins

H226 Sample# 1510A Kalg 94 0.5g -420+200u
Near Coolgardie, unminz granite hosted qtz veins
coarse qtz, translucent, minor feldspar, granular

H227 Sample# 1510B Kalg 94 0.5g -420+200u
Near Coolgardie, unminz granite hosted qtz veins
med grain qtz, translucent, rare feldspar, granular

H228 Sample# 1510C Kalg 94 0.5g -420+200u
Near Coolgardie, unminz granite hosted qtz veins
med grain qtz, translucent, granular

H229 Sample# 1511A Kalg 94 0.5g -420+200u
Near Coolgardie, unminz granite hosted qtz veins
foliated grey/white qtz, distant from 1510 samples

H230 Sample# 1511B Kalg 94 0.5g -420+200u
Near Coolgardie, unminz granite hosted qtz veins
somewhat fractured grey/white qtz, med grain, distant from 1510 samples

H238 Sample# 1511C Kalg 94 0.5g -420+200u
Qtz veins in granite, Coolgardie area, unmineralized
semi translucent greyish qtz

Bayley's mine

H478 Sample# 1523A Kalg94 0.5g -420+200mu
Bayleys, 2700 level Near south lode, barren
sheared semi transl white qtz

H482 Sample# 1523B Kalg94 0.5g -420+200mu
Bayleys, 2700 level, near south lode, baren
White quartz/carbonate, Acid Washed

H484 Sample# 1523C Kalg94 Bayleys 0.5g -420+200u
Bayleys 2700 level, near south lode, barren Acid Washed
White qtz, traces of CR

h554 Sample# 1524 Kalg94 0.5g -420+200mu Acid Washed
Milky wh qtz, abundant CO3=
Bayleys, south lode

h555 Sample# 1525A Kalg94 0.5g -420+200mu Acid Washed
semi transl wh qtz
Bayleys, just before north lode, barren

h556 Sample# 1525B Kalg94 0.5g -420+200mu Acid Washed
semi transl wh qtz
Bayleys, just before north lode, barren

h557 Sample# 1526A Kalg94 0.5g -420+200mu Acid Washed
milky white qtz, CR inclusions
Bayleys, north lode, mineralised, approx 2gm/t

h558 Sample# 1526B Kalg94 0.5g -420+200mu Acid Washed
milky white qtz, CR inclusions
Bayleys, north lode, mineralised, approx 2gm/t

h559 Sample# 1526C Kalg94 0.5g -420+200mu Acid Washed
milky white qtz, CR inclusions
Bayleys, north lode, mineralised, approx 2gm/t

h560 Sample# 1527A Kalg94 0.5g -420+200mu
greyish milky qtz, CR inclusions
Bayleys, north lode, 10m from 1526, mineralised, approx 2gm/t

h561 Sample# 1527B Kalg94 0.5g -420+200mu
greyish milky qtz, CR inclusions, fractured, S= on shears
Bayleys, north lode, 10m from 1526, mineralised, approx 2gm/t

h562 Sample# 1527C Kalg94 0.5g -420+200mu
greyish milky qtz, much CR inclusions
Bayleys, north lode, 10m from 1526, mineralised, approx 2gm/t

h563 Sample# 1528A Kalg94 0.5g -420+200mu Possible storm noises above 450C
clean milky white qtz
Bayleys, north lode, 5m from 1527, mineralised, approx 2gm/t, from roof

H565 Sample# 1528B Kal94 0.5 gm -420+200 mu
Bayleys north lode
Greyish, milky quartz, ppyritic, much CR

H566 Sample# 1529A Kal94 0.5 gm -420+200 mu Acid Washed
Main section of Bayleys lode, adjacent to previous samples
clean, milky white quartz

H567 Sample# 1529B Kal94 0.5 gm -420+200 mu Acid Washed
Main section of Bayleys lode, adjacent to previous samples
semi translucent white qtz, much CR

H568 Sample# 1530A Kal94 0.5 gm -420+200 mu
Far side of north lode, Bayleys adjacent to previous samples
clean milky white qtz

H569 Sample# 1530B Kal94 0.5 gm -420+200 mu
Far side of north lode, Bayleys adjacent to previous samples
clean milky white qtz, S= on selvegde

H570 Sample# 1530C Kal94 0.5 gm -420+200 mu
Far side of north lode, Bayleys adjacent to previous samples
clean semi translucent white qtz

h572 Sample# 1531A Kalg94 0.5g -420+200 mu
semi translucent white qtz
Bayleys, north lode, 26 level, roof fall

h573 Sample# 1531B Kalg94 0.5g -420+200 mu
semi translucent white qtz
Bayleys, north lode, 26 level, roof fall

h574 Sample# 1531C Kalg94 0.5g -420+200 mu
semi translucent white qtz
Bayleys, north lode, 26 level, roof fall

H575 Sample# 1531D Kalg94 0.5g -420+200 mu Acid Washed
Milky white qtz , much CR and CO3=
Bayleys, north lode, 26 level, roof fall

H576 Sample# 1532A Kalg94 0.5g -420+200 mu
clean semi translucent white qtz
Bayleys, north lode, 26 level, major quartz reef, roof fall

H585 Sample# 1532B Kalg94 0.5g -420+200mu
Bayleys, north lode, 26 lvl, major qtz vein, roof fall
clean semi translucent white qtz

H586 Sample# 1532C Kalg94 0.5g -420+200mu ACID WASHED
Bayleys, north lode, 26 lvl, major qtz vein, roof fall
semi translucent white qtz, much CR, trace S=

H587 Sample# 1533A Kalg94 0.5g -420+200mu ACID WASHED
Bayleys, south lode, 700 lvl, economic at this level but not above
banded 1cm qtz / CO3= / CR

H588 Sample# 1533B Kalg94 0.5g -420+200mu ACID WASHED
Bayleys, south lode, 700 lvl, economic at this level but not above
semi transl white qtz, much CR and CO3=

H589 Sample# 1534A Kalg94 0.5g -420+200mu
Bayleys, north lode, 700 lvl, major qtz vein
semi transl fine grain clean white qtz

H590 Sample# 1534B Kalg94 0.5g -420+200mu
Bayleys, north lode, 700 lvl, major qtz vein
semi transl fine grain clean white qtz, CR selvedge

King's Cross mine

H591 Sample# 1535A Kalg94 0.5g -420+200mu ACID WASHED
Bayleys, Kings Cross lode, 500 lvl, nearest decline 3
clean milky white qtz

H592 Sample# 1535B Kalg94 0.5g -420+200mu
Bayleys, Kings Cross lode, 500 lvl, nearest decline 3
milky & semi transl white qtz, CR inclusions

H594 Sample# 1535C Kal94 0.5g -420+200 Acid Washed
Bayleys, Kings cross lode, 500 lvl
milky wh qtz, CR inclusions, CO3=

H595 Sample# 1536A Kal94 0.5g -420+200 Acid Washed
Bayleys, Kings cross lode, 500 lvl , 100m in
milky wh qtz

H596 Sample# 1536B Kal94 0.5g -420+200 Acid Washed
Bayleys, Kings cross lode, 500 lvl , 100m in
milky wh qtz, CR bands

H597 Sample# 1536C Kal94 0.5g -420+200 Acid Washed
Bayleys, Kings cross lode, 500 lvl , 100m in
milky wh qtz, CR inclusions

H598 Sample# 1537A Kal94 0.5g -420+200 Acid Washed
Bayleys, Kings cross lode, 500 lvl , 80m in
Coarse grain milky wh qtz

H599 Sample# 1537B Kal94 0.5g -420+200 Acid Washed
Bayleys, Kings cross lode, 500 lvl , 80m in
grey/wh qtz much CR inclusions

Three mile hill mine

H641 Sample# 1545A Kalg94 0.5g -420+200u
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
semi translucent clean white v coarse grain qtz

H642 Sample# 1545B Kalg94 0.5g -420+200u
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
milky white coarse grain qtz

H643 Sample# 1545C Kalg94 0.5g -420+200u
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
semi translucent, very coarse white quartz

H644 Sample# 1545D Kalg94 0.5g -420+200u
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
semi translucent, very coarse white quartz

H645 Sample# 1545E Kalg94 0.5g -420+200u
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
semi translucent, very coarse white quartz, minor CR inclusions

H646 Sample# 1546A Kalg94 0.5g -420+200u
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
semi translucent, coarse white quartz, minor CR inclusions

H647 Sample# 1546B Kalg94 0.5g -420+200u
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
semi translucent, very coarse white quartz

H648 Sample# 1546C Kalg94 0.5g -420+200u
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
semi translucent, coarse white quartz

H649 Sample# 1546D Kalg94 0.5g -420+200u Acid Washed
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
grey-white semi translucent, med grained quartz, CR inclusions

H650 Sample# 1546E Kalg94 0.5g -420+200u
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
white semi translucent, med grained quartz, CR inclusions

H651 Sample# 1546F Kalg94 0.5g -420+200u
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
clean white semi translucent, med grained quartz

H652 Sample# 1546G Kalg94 0.5g -420+200u
Coolgardie area - 3 mile mine: Upper floor, 1 bench below portal exit
clean white semi translucent, med grained quartz

H836 Sample# 1547A Kal94 0.5g -420+200u
Coolgardie 3 mile pit, pit floor
Milky white med grained qtz

H837 Sample# 1547B Kal94 0.5g -420+200u
Coolgardie 3 mile pit, pit floor
Milky white cse grained qtz

H838 Sample# 1547C Kal94 0.5g -420+200u ACID WASHED
Coolgardie 3 mile pit, pit floor
Milky white med grained qtz, much CO3=

H839 Sample# 1547D Kal94 0.5g -420+200u
Coolgardie 3 mile pit, pit floor
Semi gtransl white cse grained qtz

H840 Sample# 1547E Kal94 0.5g -420+200u
Coolgardie 3 mile pit, pit floor
Semi gtransl white cse grained qtz

H841 Sample# 1547F Kal94 0.5g -420+200u
Coolgardie 3 mile pit, pit floor
Semi gtransl white cse grained qtz

H842 Sample# 1547G Kal94 0.5g -420+200u
Coolgardie 3 mile pit, pit wall
Semi gtransl white cse grained qtz

H843 Sample# 1547H Kal94 0.5g -420+200u ACID WASHED
Coolgardie 3 mile pit, pit wall
Semi gtransl white cse grained qtz

H844 Sample# 1547J Kal94 0.5g -420+200u
Coolgardie 3 mile pit, second vein zone
Milky white cse grained qtz

H845 Sample# 1547K Kal94 0.5g -420+200u
Coolgardie 3 mile pit, second vein zone
Milky white cse grained qtz , pyritIC, cr

H847 Sample# 1547L Kal94 0.5g -420+200u
Coolgardie 3 mile pit, second vein zone
Milky, vitreous white coarse grained qtz, CR

H848 Sample# 1547M Kal94 0.5g -420+200u
Coolgardie 3 mile pit, second vein zone, wall
Semi translucent very coarse grained white qtz.

H849 Sample# 1547N Kal94 0.5g -420+200u
Coolgardie 3 mile pit, second vein zone, wall
Semi translucent very coarse grained white qtz., CR

H850 Sample# 1547P Kal94 0.5g -420+200u
Coolgardie 3 mile pit, second vein zone, wall
Milky white qtz.

H851 Sample# 1547R Kal94 0.5g -420+200u ACID WASHED
Coolgardie 3 mile pit, second vein zone, wall
Banded, semi translucent coarse grain qtz

H852 Sample# 1548A Kal94 0.5g -420+200u ACID WASHED
Coolgardie 3 mile pit, Partial level bench at north end, horiz. qtz in wall

H853 Sample# 1548B Kal94 0.5g -420+200u
Coolgardie 3 mile pit, Partial level bench at north end, horiz. qtz in wall
Semi translucent white qtz, CR

H854 Sample# 1549A Kal94 0.5g -420+200u
Coolgardie 3 mile pit, South end, loose quartz
Semi translucent white qtz, med grainsize

H855 Sample# 1549B Kal94 0.5g -420+200u
Coolgardie 3 mile pit, South end, loose quartz
Semi translucent white qtz, med grainsize

H856 Sample# 1549C Kal94 0.5g -420+200u
Coolgardie 3 mile pit, South end, loose quartz
Semi translucent white qtz, med-cse grainsize