Road Cutting / Face Strata Gallery & Discussion

mbasko said:

Looks like a drainage channel to me. Are there diggings below it? If so it may have been placed there to divert run off water away from them. Does it lead to another channel, water race or gully/area of run off?
Are there any shafts or diggings above it? Being an auriferous area there is a good chance some gold will have concentrated in it if it's not present in the actual ground already. Good luck with the samples - hopefully it shows something. Keep in mind if there are diggings around then the old timers would have been chasing "payable" gold. What wasn't payable back then can be now.

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Didn't spend too long there, had a fair few kms to cover for the day, but couldn't see any other digging within eye shot, prospecting or otherwise.
I understand some of the reasons why it may have been left by the old timers, I guess I was thinking more recent history. I'm surely not the only prospector to drive past and take a sample.
Anyway, it was a good physical example of what to look for in the future. I'm a prospecting minnow, all discoveries help me learn
Thanks for the input

mbasko said:

http://geology.data.vic.gov.au/reports/memoirs/G17_memoir-7_OCR.pdf

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Thanks, looks like a good long read.
Jon

Alas, no gold in my sample

As there appears to be potentially hundreds of tonnes of this material, I may test again form a few different locations/levels

Took a couple of snaps of a cutting today for the gallery

hey atom thats got some strong bedding planes going on. Tell us a bit about it.

From what I know its sularian / devonian / cambrian sedimentary. The mountains pushing upwards from the valley also push outwards to the west slowly forcing melbourne into port phillip bay, compressing a lot along its way. Enough to turn limestones to marbles and form a heap of metamorphism Iin many areas. Volcanics , hydrothermals and granite batholiths nearby being the main intrusive mass, alongside quartz reefs and stringers. Sedimentarys, shales and slates. Alluvial with coluvial and a but of a mess in the mountains with a mix of everything.

Ill put some more up shortly

I don't know much about geology but it looks like an anticline to me that is eroded on top..... Hill End in NSW has similar geology but is a much larger anticline.

On the way to Hill End on Turondale rd. There is a road cutting and on the face of the hill there is heaps of quartz veins. Any of you who have gone on that road seen it?

Here's a nice looking vein I came across on my recent prospecting trip. It's over a meter wide at the top.

dolly some up and find out if it has any colour mate...

Will do Kawman, next time I'm out there. It's got some nice mineralisation I just enjoyed studying it while I was there and thought I'd get a few pics for you blokes. I love the fractures either side of it. Awesome stuff...

Thanks for contributing NeoGeo

Looks like a confused quartz vein that entered the strata from above lol

This one shows the foliation a bit better. The vein is to the left.

What a ripper mate

Another stop at a road cut for an inspection and some photos. Mostly sandstone, siltstones and claystone turbidites with recent fluvial bedding that runs horizontally above all the rest of the below strata. The main bedding strike runs perpendicular with the road, and dip angle near vertical. Basically the whole ground had been rotated up end 90, like holding a closed book by its back, pages facing straight up, and afterwards, some more sands / fluvials deposited then horizontally. The hardness, coloring, grain/sand size was different for each layer as it was deposited in varying shallow, boggy tides possibly. Some of the layers though vertical, were easy to see was once a muddy surface that evaporated, then dried quickly in the sun to form mud cracks, preserved within the layers, just as some of them had what seem to be thin, dry, sand blown layers, above thick deposits of a muddy flow or brief flood. As most the rock in the area is not brittle, but more plastic, some curved stress folding and smooth lines can be seen within the strata caused by several nearby faults. Within some of the varying rock were very fine veins of a possible decomposed quartz or sodium enriched veins that crumble under the finger only a few mm thin. A small amount of hydrothermals had intruded the rock along its fractures and a couple of fissures as well. Cheers



The more recent horizontal bedding can be seen here easier where the grassline begins 3/4 way up image.

WOW where abouts is that road cutting AtomRat

We have a lot of that here in Tathra.
One side of the cliff is Sandstone.
The other side is heat fused conglomerate.
The cliff is a fault line that extends inland to Bombala
turning and forming Mallacouta Inlet.

Found this on a resent trip out fishing.
Didn't have anything to take a sample, but will definitely check next time I head out that way.