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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.
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RECENT CONTRIBUTIONS 1 2 3 .. 17 Next page >>
Track
Central Dingle Quartet from Anascaul
Bunsen7 22 hours ago.
Follow the track from Anascaul lake car park northwards up onto the mountain plateau.Track leads northwards from lake... walk, Len: 15.8km, Climb: 949m, Area: Stradbally Mountain, Central Dingle (Ire

  
Summit Summary
Seefin Mountain W Top: Bog and rough ground.
Collaborative entry Last edit by: melohara 2 days ago.
Car park space at R66276 16811. Over or around the gate and head uphill on a good track that crosses the hill near the summit of Seefin Mountain East top.Follow the track on downhill from the cres...

  
Track
Pic du Midi d'Ossau
David-Guenot a day ago.
The idea came from my 60-year-old, freshly retired neighbour, as we and some other members of the local badminton club m walk, Len: 16.2km, Climb: 1353m, Area: France, Nouvelle-Aquitaine ()

Summit Summary
Seefin Mountain E Top: Up the old bog road.
Collaborative entry Last edit by: melohara 2 days ago.
Car park space at R66276 16811. Over or around the gate and head uphill on a good track that crosses the hill near the summit.On the crest of the hill the summit cairn is over a wall to your right...

  
Summit Summary
Seefin South-East Top: Seefin South East Top is easily visited
Collaborative entry Last edit by: melohara 2 days ago.
Seefin South East Top is easily visited from the track leading to Seefin Mountain East Top and Seefin Mountain West Top which starts st R66276 16811. Just follow the track to R65202 17892 from whe...

  
Summit Comment
Carnaween: The visitors book box near the summit
Aidy 6 days ago.
Just wanted to show the brilliantly constructed little box which contains the visitors book. It was too wet and windy on my visit to take it out and risk ruining it. A few shafts of light breaking...

Summit Comment
Carnaween: Bad Weather Adding Drama To Great Views
Aidy 6 days ago.
I used the commonly taken route from Disert Graveyard (worth a visit in its own right) over ground that was alternatively boggy or pretty steep. It was freezing cold in these parts, with a strong ...

  
Track
Pic Rouge de Bassiès
David-Guenot 2 days ago.
This was the first of the two big hikes I did in the Pyrenees in summer 2016. Hiking in the summer often means a sunny d walk, Len: 16.3km, Climb: 1342m, Area: France, Midi-Pyr?n?es ()

  
Summit Comment
Corrin: A family stroll.
David-Guenot a week ago.
Climbed this hill in November 2014, with a friend who used to live in the area. Starting at the Coillte car park, we did a nice loop on the forest paths, circling around the hill in an anticlockwi...

Forum: General
MV Mountain Gathering 2017
Onzy 4 days ago.
Always a great night ... all welcome.

  
Summit Comment
Luggala: Fancy View from White Hill
davsheen 2 weeks ago.
Autumn's evening view across to Luggala/Fancy from White Hill on route down from Djouce using the Wicklow Way boardwalk section.

  
Summit Comment
Binn Charrach: The peat-hag capital of Connemara
markwallace 2 weeks ago.
The descent from Benbaun to the R344 via Knockpasheemore/Binn Charrach is hard going after a day in the Bens. The Knockpasheemore ridge looks nice and flat from below, but is boggy, undulating and...


RECENT CONTRIBUTIONS 1 2 3 .. 17 Next page >>