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Another place in K.. by scapania   (Show all posts)
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)


RECENT CONTRIBUTIONS 1 2 3 .. 15 Next page >>
Track
Route to Claggan NE Top
Onzy 14 hours ago.
walk, Len: 8.0km, Climb: 2m, Area: Claggan Mountain NE Top, North Mayo (Ireland...

  
Track
Slievemore Circuit
Onzy 14 hours ago.
Route over Slievemore descending over rough grouns to the SE for variety. walk, Len: 8.1km, Climb: 639m, Area: Slievemore, Achill/Corraun (Ireland) Sliev...

  
Summit Comment
Farbreague: from Arderin
ewen 6 days ago.
Walked to Farbreague from Arderin. There is a track that some kind soul has marked with sticks and ribbon. When I say track, it is really a worn down trough in the bog.The multicoloured pipe at th...

Track
Onzy 14 hours ago.

  
Summit Comment
Tonelagee: Fore!!!
ewen a week ago.
Did from the Wicklow gap car park following track 2378.This starts immediately opposite the top entrance to the car park next to the main road. 5 days before there had been snow but now the path w...

  
Summit Comment
Brandon Hill: Grand on Brandon!
MountainBoy a week ago.
Me and my Dad climbed this from the farm track off the Graiguenamanagh-Instioge road on 26/11/16. Right after we got out of the car, we were faced with the dilemma of whether to go straight ahead ...

Summit Summary
Robber's Pass Hill: Minor heathery lump. Overcivilised and underwhelming.
Collaborative entry Last edit by: simon3 4 days ago.
This oddly named hill is more a very minor heathery bump incorporated into the system of tracks laid out by the Wicklow Mountains National Park. It can be reached from any of the western car-parks...

  
Summit Comment
Croaghmoyle: Easy walk up to great views
Fergal Meath a week ago.
Low lying cloud/mist/fog discouraged me from putting the effort into going up Nephin today. On the way home I parked at the start of the Croaghmoyle service road and followed it past a wind turbin...

  
Track
Onzy 14 hours ago.

Summit Comment
Ben of Howth: Loop walk starting from Howth Harbour
Joshua3 a week ago.
There is a nice loop walking signposted from Howth Harbour taking in the cliff path, summit and going close to the top of the Ben. The Black Linn walk is about 8 km and comfortably completed in un...

  
Summit Comment
Carrigroe: Sea of cloud
Kennyj a week ago.
Unusual low cloud today heading towards Carrigroe

  
Forum: General
Slieve Binnian - more track work ?
gernee 6 days ago.
Revisited Slieve Binnian for the first time in years on Friday - frost underfoot, blue skies and rolling mist contributed to a great walk, despite disappointment at seeing some of the track work u...


RECENT CONTRIBUTIONS 1 2 3 .. 15 Next page >>