Forums
New posts
Search forums
What's new
New posts
Latest activity
Members
Registered members
Current visitors
Charts
Log in
Register
What's new
Search
Search
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Gold Prospecting
Alluvial Gold Prospecting
Road Cutting / Face Strata Gallery & Discussion
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Help Support Prospecting Australia:
This site may earn a commission from merchant affiliate links, including eBay, Amazon, and others.
Message
<blockquote data-quote="blisters" data-source="post: 209630" data-attributes="member: 4992"><p>Really hard to tell from a photo but it looks like somethings happening in the middle of the cutting where it is orange. It looks like slate to the right from cleavage and colour (grey) and to the left maybe sediments still and if I am not mistaken has cleavage so some regional metamorphism has taken place. If you look at the direction of cleavage in the slate to the right as it gets closer to the orange bit it changes direction so maybe it it a fault dragging and deforming the surrounding rock. I can't see much deformation on the left side of the orange bit but can't make out much anyway. There doesn't look like any cleavage in the orange bit from the photo and it looks pretty solid so I would guess you have a dyke intruding the sediments. If you look to the left in the first pic there looks like very thin orange/dark lines in the same direction as the orange dyke. If you look to the right of the dyke to the edge of the grey slate the dyke material does not look solid but munched up. Perhaps this is caused by a fault? The whole cutting could just be layering of sediment but you'd have to go back for a better look and see what type of rocks they are and what is happening in the munched bit.</p><p>Jon</p></blockquote><p></p>
[QUOTE="blisters, post: 209630, member: 4992"] Really hard to tell from a photo but it looks like somethings happening in the middle of the cutting where it is orange. It looks like slate to the right from cleavage and colour (grey) and to the left maybe sediments still and if I am not mistaken has cleavage so some regional metamorphism has taken place. If you look at the direction of cleavage in the slate to the right as it gets closer to the orange bit it changes direction so maybe it it a fault dragging and deforming the surrounding rock. I can't see much deformation on the left side of the orange bit but can't make out much anyway. There doesn't look like any cleavage in the orange bit from the photo and it looks pretty solid so I would guess you have a dyke intruding the sediments. If you look to the left in the first pic there looks like very thin orange/dark lines in the same direction as the orange dyke. If you look to the right of the dyke to the edge of the grey slate the dyke material does not look solid but munched up. Perhaps this is caused by a fault? The whole cutting could just be layering of sediment but you'd have to go back for a better look and see what type of rocks they are and what is happening in the munched bit. Jon [/QUOTE]
Verification
Post reply
Gold Prospecting
Alluvial Gold Prospecting
Road Cutting / Face Strata Gallery & Discussion
Top