Hi all just wondering if it would be worthwhile detecting on volcanic rock area's. I know of a couple of area's that come out from the sea and go up into sandhills and limestone cliffs that are volcanic rock.
Volcanic rock
- Thread starter Wishfull
- Start date
Help Support Prospecting Australia:
Me again. I hope the above wasn't a silly question. Just seems to me that volcanic areas would have some gold in them.
Hey Wishfull... Im pretty sure the active Volcanic area in ViC was from 7000 thousands years to 3 million years ago, so most of the gold bearing areas were before that time, so im guessing its underneath the basalt areas. I don't know how deep it was but they did find gold in Richmond back in the 1800s and Melbourne was supposed to be a volcanic plain and im guessing it was the same in SA.
The last volcanic ares AUS were Mt Gamier and MT Napier so you never know mate.
The last volcanic ares AUS were Mt Gamier and MT Napier so you never know mate.
My understanding is that Victorian Gold largely formed around 440 to 480 million years back, so recent volcanic activity likely overflowed that. I have heard though that where igneous meets the metamorphic are good regions to detect in the GT for larger gold. Anyone care to comment?
To much limestone down here in Mt Gambier to get through for detectable gold. Drill testing around kingston/Beachport area found gold on the bedrock at 70m. a couple of years ago. Dunno if it was payable though.
Thank guys but is the volcanic rock that is on the surface any good for detecting on or has it got too much iron in it and send the detector stupid ie. hot rocks. Can you pick if it contains gold
Yeah will give it ago soon. I'll let you all know if I get any targets worth mentioning. Where is GT ? being from S.A. I'm supposing it's in the Grampians Table lands ?
- Joined
- Jan 27, 2015
- Messages
- 7,768
- Reaction score
- 12,889
VLF's & Minelab PI detectors love basalt. They will range from a signal every sweep in some areas to just picking up the odd bit here & there in others. Gold wise the basalt usually tends to cap or overlay the gold. The areas I've detected that contain gold & basalt are where the basalt has weathered or degraded over time into rocks of varying sizes & the gold appears to be intermingled with it not contained within it.
Thanks Eldorado that figures.
Also thanks to mbasko that is interesting. The rocks in the area I'm refering to are very weathered so could be interesting. Trouble is the rocks are large as in tons to marble in size just getting in between them to detect is going to be awkward.
Cheers
Also thanks to mbasko that is interesting. The rocks in the area I'm refering to are very weathered so could be interesting. Trouble is the rocks are large as in tons to marble in size just getting in between them to detect is going to be awkward.
Cheers
- Joined
- Dec 28, 2015
- Messages
- 30
- Reaction score
- 10
I subscribe to the volcano theory and gold detecting.
Go for your life and hope it's productive.
Let us know if you find a 1 ton nugget!
Go for your life and hope it's productive.
Let us know if you find a 1 ton nugget!
Thanks EP I'll give it a swing and sea what I find.
I will post up what happens. Just got to get there, maybe a month and a bit ?
I will post up what happens. Just got to get there, maybe a month and a bit ?
