Coastal Caves

[Les W]

Taken directly from the Collins Dictionary of Geology:

"Limestone, n. A sedimentary rock composed almost entirely of calcium carbonate (CaCO3), mainly as CALCITE."

It goes on to list various types of limestone and under Organic Limestones it says that these consist of shell remnants or of calcite precipitated by certain algae eg. coral limestone, crinoidal limestone, chalk.

Listed under CHALK it gives:

"Chalk, n. a soft, earthy, fine-grained white to greyish LIMESTONE of marine origin, composed almost entirely of biochemically derived calcite.

:read:

 

[Peter Burgess]

Oh no it isnt. The stuff used for writing and drawing is artificial and is calcium sulphate I believe. I would nor consult the OED for a technical definition. Apart from burning to lime or cement, there is no common use I can think of between the two, which rather speaks for the differences between the two rocks. When did you last hear anyone speak of the limestone cliffs of Dover.

 

[Les W]

From The Concise Caves Of Devon

...snip

South Devon Coast
...snip

If you look in the back of the "Pink book of lies" you will find in one of the updated sections - Anemone cave. I think it is claimed as Devons longest phreatic cave. It resides at sea level and access is by swimming at low tide. 

 

[SamT]

Can we start a different topic for limestone/chalk debate  :
This is a serious topic by cookie and is in danger of being over run by the usual UKCaving pedants.
do we care :spank:

Back on Topic.

What about the pembroke area - the only one I know is the one taken by the climbing route 'Perposterous Tales' at bosherston head - this is on the MOD range, so  public some of the time.
http://www.rockfax.com/databases/r.php?i=17750

Gogarth has Parliament House Cave at North Stack on Anglesey. Public.

 

[Cookie]

Are there any sea caves or caves that meet the sea on the East coast?

The Northumberland and Durham coast seems to be made of limestone.

There also seems to be limestone on the west coast around Lancaster. Any caves there?

 

[Cookie]

Can we start a different topic for limestone/chalk debate  :

Thanks. 

 

[Les W]

Are there any sea caves or caves that meet the sea on the East coast?

The Northumberland and Durham coast seems to be made of limestone.

There also seems to be limestone on the west coast around Lancaster. Any caves there?

there are certainly some mines along the coast of the North Yorkshire Moors

 

[kay]

Are there any sea caves or caves that meet the sea on the East coast?

The Northumberland and Durham coast seems to be made of limestone.

There also seems to be limestone on the west coast around Lancaster. Any caves there?

Flamborough Head (Yorkshire - E coast) has lots of sea caves. 'Adventure sports' outfits run canoe trips round there.

Limestone area around Arnside (N of Lancaster) has a lot of caves marked on the OS map.

 

[docfunk]

Are there any sea caves or caves that meet the sea on the East coast?

The Northumberland and Durham coast seems to be made of limestone.

There is the The Marsden Grotto pub in a cave, but yes there is a lot of limestone south of the Tyne but TBH I don`t know much about it  :-[

 

[SamT]

The northumberland / durham coast is limestone - in places - but its very low, and certainly around the north sheilds/southsheilds areas - I have never seen any evidence of what you would call caves.

 

[cucc Paul]

I know my granddad keeps taking me to some I really cant remember the name their are several sea formed, some of the best I've ever seen, and one which is either solutional or mined. Again their in the NE of england and the name might sound like blacksomething

 

[gus horsley]

What about the pembroke area - the only one I know is the one taken by the climbing route 'Perposterous Tales' at bosherston head - this is on the MOD range, so  public some of the time.
http://www.rockfax.com/databases/r.php?i=17750

St Govan's Cave, reached by abseil or scary climb, has a chamber with an impressive stal column (pub)
Wogan's Cave (fossil sea cave under Pembroke Castle). (priv)

 

[richardg]

Paul it's nice to hear your recollections of your Grandad taking you off on explorations of those seacaves, From your discription;Blacksomthing in the NE of England, I would think they could be Blackhall Rocks Caves. NGR NZ 473389 These are formed in a wide band of the cavernous Magnesium Limestone, they are impressive as you say. If we have relocated these caves of your youth, in many years time(?) you too can continue a fine family tradition!. 

 

[Cookie]

These are formed in a wide band of the cavernous Magnesium Limestone

Thanks for the info.

A well know (to this forum) amature geologist reliably informed me that there were no caves in the Magnesium Limestone.  :spank:

 

[graham]

These are formed in a wide band of the cavernous Magnesium Limestone

Thanks for the info.

A well know (to this forum) amature geologist reliably informed me that there were no caves in the Magnesium Limestone.  :spank:

IIRC it's Magnesian Limestone & there are plenty of caves in it. Some very well known archaeological sites to begin with.

 

[woollydigger]

they is over 30 caves on portland but hard to find  u need acess for most of them

 

[woollydigger]

there is a book on caves of portland and dorset cant think of the name  at the mo

 

[Les W]

there is a book on caves of portland and dorset cant think of the name  at the mo

Caves of Portland?  :-\

 

[woollydigger]

my dad  can get acess ot to them.  i find out whats the books called for you

 

[graham]

Irony is lost on 'em, Les.