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Sorry to disappoin.. by mcrtchly   (Show all posts)
Thanks for the pos.. by Conor74   (Show all posts)
Possibly a male He.. by milokane   (Show all posts)
you forgot the cur.. by maclimber   (Show all posts)
A squillion years .. by Bleck Cra   (Show all posts)
Thanks mccrtchly f.. by slemish   (Show all posts)
mcrtchly
2011-01-18 10:41:57
Irish Volcanoes
Of course there are no active volcanoes in Ireland - yet (but maybe in 50 million years time when Africa collides with Europe or in 150Ma time when the Atlantic Ocean starts to close). However there are the remains of old volcanoes throughout the geological record in Ireland. The youngest are found in NE Ireland and are related to the opening of the Atlantic Ocean about 60Ma ago. Slieve Gullion is the core of a volcano from this time (see: http://www.louthcoco.ie/en/Publications/General/A_Geological_Field_Guide_to_Cooley,_Gullion,_Mourne_Slieve_Croob_.pdf). Slemish in Antrim is the core of another volcano from this period. During the Carboniferous period (350Ma) occasional small volcanoes disturbed the warm tropical seas. The remnants of these can be seen today as several small hills in the Irish Midlands such as Croghan Hill in Offaly. The Lough Guitane (Mangerton) volcanic complex in Kerry is slightly earlier (about 390Ma) but is related to the same tectonic events (the closing of an ocean to the south of Ireland at this time). Going back further in time Ireland was split in two by a precursor to the Atlantic Ocean known as the Iapetus Ocean (SE Ireland was split many 1000'skm from NW Ireland by the ocean). When the Iapetus closed around 450Ma there were many volcanoes in Ireland. An example (now eroded to sea level) can be seen on the Copper Coast in Waterford (see: http://homepage.eircom.net/~ccgeopark/Geology.htm). There are also numerous ancient volcanic cores in Connemara and Mayo.
...I remember one .. by Conor74   (Show all posts)
hbowman, just ask .. by Bleck Cra   (Show all posts)
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RECENT CONTRIBUTIONS 1 2 3 .. 23 Next page >>
Forum: General
Re: Sligo, Leitrim, Roscommon
Peter Walker 22 hours ago.
Hi daithi07The 'what's left to do in Ireland' article currently lives largely in my head rather than anywhere more tangible. It will see the light of day at some point in the next few months. I am...

  
Track
Greece, Pelion Peninsula: Paou to Chorto return
Onzy a week ago.
walk, Len: 8.3km, Climb: 237m, Area: Greece, Thessaly ()

  
Track
12 (Listed) Bens - Revisited
GSheehy a day ago.
I was drawn back by the lure of completing the 2002 - 12 Bens Challenge route. I got the details from John J. Cotter w... walk, Len: 29.1km, Climb: 2598m, Area: Benglenisky, Twelve Bens (Ireland) Ben

Track
Greece, Pelion Peninsula: Affisos to Afetes return (2)
Onzy a week ago.
walk, Len: 9.7km, Climb: 458m, Area: Greece, Thessaly ()

  
Summit Comment
Big Collin: Permission required?
StephenMullin a week ago.
Hi thereCan anybody tell me if permission is required to walk up Big Collin? If so, how does one go about obtaining this?Many thanks!

  
Track
Greece, Pelion Peninsula: Portaria Circuit
Onzy a week ago.
walk, Len: 14.3km, Climb: 644m, Area: Greece, Thessaly ()

Summit Summary
Anglesey Mountain: Great Carlingford views from a so-so top
Collaborative entry Last edit by: Colin Murphy a week ago.
There is enough space to park one car at 100 167, just on the edge of a wood around a sharp u-bend. Proceed north for 100m before turning NE up a gentle slope, although the terrain is treacherous ...

  
Track
Greek Islands: Kos
Onzy a week ago.
walk, Len: 5.8km, Climb: 381m, Area: Greece, South Aegean ()

  
Summit Summary
Pigeon Rock Mountain South Top: Nondescript summit for baggers only
Collaborative entry Last edit by: Colin Murphy a week ago.
Usually done in conjunction with Pigeon Rock itself, but can be done in isolation if you want. Car park can be found at 234 278 A. Take the track directly across the road that follows the Rocky Ri...

Summit Comment
Knockroe: Where Summits relocate with No Plate Movement
CaminoPat 3 days ago.
Knockroe summit is listed as being located in County Cork. The correct location however is County Waterford. Déise abú.

  
Forum: General
Sligo- Leitrim-Roscommon
daithi07 5 days ago.
That sounds good Peter... I can't seem to find the article, is it on here somewhere? Big fan of the Bob Graham loop, etc. so would be on for anything really that involves running up, down and betw...

  
Summit Comment
Wee Slievemoughan: The ups and downs
Colin Murphy a week ago.
Approaching from Rocky Mountain summit requires a bit of up-and-down trekking, as it is necessary to first ascend Tornamrock and then drop down again to a the col to the south before ascending Wee...


RECENT CONTRIBUTIONS 1 2 3 .. 23 Next page >>