[timb64]

English Lake District

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Last edited by timb64; 11-05-2019 at 04:44 PM.

[WPRESTO]

Somewhere in Kakadu, near sunset.

[Mike L]

Hexagonal columnar basalt at the Giant's Causeway in Northern Ireland

[jquill]

Sky City "Back Yard" View

[Mike L]

The Cheesewring in Cornwall, UK

[WPRESTO]

The Cheesewring in Cornwall, UK

Is that an ancient structure or modern creation? If it is prehistoric, it's a marvel that it remains intact.

The end of Earth bones at the edge of the sea. The only block of bedrock on Fraser Island.

[Mike L]

Is that an ancient structure or modern creation? If it is prehistoric, it's a marvel that it remains intact.

The end of Earth bones at the edge of the sea. The only block of bedrock on Fraser Island.

Allegedly it is a natural geological formation created by the weathering of the granite slabs.

[WPRESTO]

Allegedly it is a natural geological formation created by the weathering of the granite slabs.

I wondered if it were a remnant of the granitic rock that gave rise the the massive quantity of sand all over Australia, but especially along the eastern coast.

[Mike L]

I wondered if it were a remnant of the granitic rock that gave rise the the massive quantity of sand all over Australia, but especially along the eastern coast.

This formation is in Cornwall on the south west coast of Britain.

I always thought all the sand on the Australia beaches was a result of the all the sandstone along the Great Dividing Range weathering. I'll have to consult my resident geological expert.

[WPRESTO]

This formation is in Cornwall on the south west coast of Britain.

I always thought all the sand on the Australia beaches was a result of the all the sandstone along the Great Dividing Range weathering. I'll have to consult my resident geological expert.

I'm far from an expert on Australian geologic history. It's hard enough to keep North America straight in my mind. And which formation is on the south west coast of Britain?

[Mike L]

And which formation is on the south west coast of Britain?

The Cheesewring that I posted before is on the south west coast of Britain. I just consulted the Geology of Britain viewer | British Geological Survey (BGS) and it appears the Cheesewring is part of:

Bodmin Intrusion - Granite. Igneous Bedrock formed approximately 272 to 331 million years ago in the Permian and Carboniferous Periods. Local environment previously dominated by intrusions of silica-rich magma.

Blockfield - Boulders, Granite. Superficial Deposits formed up to 3 million years ago in the Quaternary Period. Local environment previously dominated by weathering processes (U).

[WPRESTO]

The Cheesewring that I posted before is on the south west coast of Britain. I just consulted the Geology of Britain viewer | British Geological Survey (BGS) and it appears the Cheesewring is part of:

Bodmin Intrusion - Granite. Igneous Bedrock formed approximately 272 to 331 million years ago in the Permian and Carboniferous Periods. Local environment previously dominated by intrusions of silica-rich magma.

Blockfield - Boulders, Granite. Superficial Deposits formed up to 3 million years ago in the Quaternary Period. Local environment previously dominated by weathering processes (U).

OK. I did not project back to your earlier post, rather I thought an image was not showing in the post where you named the formation. So the Cheesewring (delightful name) is associated with the closing of the Theic Seaway.

[Mike L]

From Jenolan Caves in New South Wales, Australia

[WPRESTO]

When I see a pile of "Earth's bones" such as are exposed in the cliffs of this headland, my mind reels at what's been eroded away and the time it took to do so.

[jquill]

I've always been intrigued by the way the old castle builders were able to seamlessly marry the base of the castle to the earth's bones.

Blarney Castle