• Ghar Parau dinner invitation

    Have you or your club benefitted from Ghar Parau funding for an expedition?

    To mark the occasion of the 50th anniversary of its creation, a meal is to be held at the Anchor Inn in Tideswell, Derbyshire on Saturday 11th February, 2023. As well as a meal there will be speakers on behalf of the original Ghar Parau explorers and the current GPF committee.

    Details here

Hypogenic Cavern Development on The Quantocks, Somerset ?

The Old Ruminator

Well-known member
A little more here -

 

The Old Ruminator

Well-known member
A current dig. Bottom left hand corner is the baryite wall. Ahead is Devonian Limestone. The wall marked 1 has been detached and removed as has the boulder marked 2. Boulder 3 blocks the downward progression of the baryite development.

 

The Old Ruminator

Well-known member
Still digging after nearly 60 years. My first major discovery at Holwell Cavern 1964. A complex maze cave oriented along dip and minor faults surely of hypogenic origin.

 

The Old Ruminator

Well-known member
Whilst copper was mined on the Quantocks it came as a fluvial deposit within the baryite lode not as an ore. Mostly it was processed underground by the miners but never proved an economic proposition. Copper extraction finally ceased in 1821. ( Refer - "Men and Mining on the Quantocks." ) The miners worked what they called the spar lode ( baryite ) and the margin of the Devonian Limestone and Slates. Caves have formed where the slates overly the limestone at Holwell. Aisholt and Cothelstone. The miners referred to the non productive slates as Killas . This unconformity is well exposed in some remote Quantock quarries
 
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The Old Ruminator

Well-known member
Devonian Limestone surface outcrops on the Quantock Hills. The western progression halts at the Cothelsone Fault which crosses the SW Peninsular.

 
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