Monthly Archives: October 2017

Giant Steps

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The Giant’s Causeway is on every visitor’s must see list on the island of Ireland. For lots of different reasons. It’s a beautiful place on a beautiful coast, It has mystery and mystique. It is intriguing and enigmatic. That’s why over a million people a year visit.

It is located in Northern Ireland in a part of Antrim known as The Causeway Coast.  I have been there twice in the past year – in January 2017 in the depth of winter and in September. Both times I was gifted with marvellous weather.

For me as a geologist it was like worshipping at a holy shrine. So I thought I would put together a few of my observations from the two trips.  Apologies if this is too dry for you but you can skip the words and just look at the pictures.

So what are we talking about here?

The Causeway is part of an extensive coastline exposing thick basalt flows.  The scenery is nothing short of spectacular with sweeping bays and jagged cliffs stretching as far as the eye can see.

 

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The Causeway Coast looking west with Giant’s Causeway in the foreground.  

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The coastal path from the Causeway to the Chimney Tops past the Organ Pipes

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View west showing Causeway and Chimney Tops in the distance.

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Giant’s Causeway is on the right and the Camel Rock on the left.

 

The Giant’s Causeway is most famous for the spectacular columns, or more correctly ‘columnar jointing’ in the basalt. The origin of the columns has historically caused all sorts of consternation. Our forebears did not believe such regular shapes could be created naturally. So if it wasn’t the work of the Almighty then it must have been Finn McCool. Hence the legend of the Irish Giant constructing the causeway to engage with his counterpart in Scotland, Fin Gall.

 

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View from the clifftop down onto the Causeway.

 

 

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And he left evidence didn’t he? In his haste to get back to Ireland and escape from his giant nemesis, Finn McCool lost a boot which remains to this day adjacent to the Causeway. There is a more prosaic explanation and I’ll return to this later.

 

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The Giant’s Boot

 

The Causeway came to the attention of Science however in the late 17th century and right through the 18th century it was the focus of intense debate as to its origin. Geological science was then in its infancy. Two intensely opposed schools of thought developed. The Vulcanists, who believed the columns were basalt solidified from lava and the Neptunists who said that all rocks including basalt were sedimentary and formed in a great ocean. The Giants Causeway was at the centre of this debate. So it is one of the most significant places in the history of the geological sciences. That debate has long since been resolved in favour of the Vulcanists

We now know, however, that the columns are caused by cooling cracks that developed at the bottom of a lava flow where it was in contact with the cooler rock beneath. As the lava continued to cool these cracks slowly propagated up creating regular, generally six-sided (though they can have from three to seven sides), columns. These regular columns are called colonnades. The hexagonal shapes are caused by the joints tending to be at 120º to each other. At the exposed tops of the flows cooling was more rapid where there was contact with air and water, so the jointing was irregular and blocky. This type of jointing is called entablature. You can see this very clearly in many places especially at the, so called, Organ Pipes

 

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Regular hexagonal columns

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Columns with 4, 5, 6 or 7 sides.

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Columnar jointing

 

 

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Spectacular columns at the Organ Pipes

If you look closer at the columns you will see that in addition to the regular vertical joints that create the columns there is also another set of sub horizontal joints which slices each column into regular segments. These were created by the release of stress during contraction within the columns.

 

 

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Horizontal jointing

 

The really intriguing thing is that when these columns break along thee horizontal joints to form the rock platforms they are in fact ont horizontal.  Usually they are either  beautifully concave or convex and the segments fit perfectly together in a ball and socket arrangement. The concave joints are easily spotted on the rock platform as they retain pools of water.

 

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Detail of column surfaces.  water collects on convex surfaces

 

The columns make an impressive display whether on the rock platforms or in the cliffs.  There is a formation at the eastern end known as the Chimney Tops. If the illustration attached from an 1888 book is accurate, then the chimneys are considerably smaller than they were in the 19th century.   I suggest you go and see them before they disappear.

 

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Chimney Tops 2017

 

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Chimney Tops 1888

 

 

 

 

 

It is easy to see how the Neptunists thought the basalts were of sedimentary origin.  There is a distinct layering which could be mistaken for sedimentary banding. Of course it represents different lava flows.  particularly confusing is a distinctive orange red layer in the middle of the cliff.  It is known as an Interbasaltic Formation; a laterite horizon, and is caused by the basalts below it being exposed to weathering for a considerable time before the upper series of basalt flows were deposited. It also suggest a warmer climate at the time as laterites require tropical conditions to develop. It is composed mainly of clays and is rich in iron and aluminium (most other elements were leached out) and has been mined for these ores elsewhere in Antrim.

 

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Layering in basalt flows

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Interbasaltic laterite

 

 

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Laterite in detail

 

Within this laterite hori\on you can see relicts of the original basalt as paler partially weathered rock. There are also some excellent examples of preserved circular structures representing earlier spheroidal weathering within the normal basalt. This is caused by water percolating down vertical and horizontal cracks eventually creating rounded blocks. It is also known as ‘onion skin’ weathering.

Oh I forgot.  Finn’s boot.  It’s actually a glacial erratic, deposited by a retreating glacier at the end of the last Ice Age (about 10,000 years ago). Much more boring explanation.

 

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Giant’s boot.  Glacial erratic

 

I know I’ve gone on about the rocks but the spirit of the place is palpable.  The only word I can think of is Romance,.

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Romance and Rocks.  What a combination.

 

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Strokestown Park House. A Living Museum.

I love when I visit a place for one reason (usually music) and discover something totally unexpected. Such was the case with Strokestown in Co Roscommon. I had no reason to expect anything other than long days and nights in one or many of the quaint pubs playing music and sampling the odd Jamesons.

It turns out Strokestown, a planned town, has a pivotal and fascinating history. In the centre of the town is Strokestown Park House, the ancestral home of the Mahon family.

 

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Strokestown Park House

You can’t help but notice the wide avenue that leads to the narrow gate to the grounds.  Aside from O’Connell Street in Dublin, it is the widest street in Ireland. One gets the impression that lined as it is with imposing buildings and Georgian terraces it was meant to create an aura of wealth and prosperity befitting the status of the British landowner; so as they drove the carriage down the avenue his friends would be suitably impressed.  The true state  of the people hidden in the side streets.

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The gateway to Strokestown House in the distance.

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Public buildings.  There’s room to park a bus rear to kerb.

But the family and the name Strokestown has a darker side.  It is now mostly remembered for its connection to the Famine, evictions and land clearances.  That story is told in the Famine Museum attached to the house (which is itself now a museum)  and is an extraordinary one.

The house is a time capsule. The Georgian Palladian style of its architecture reflects the obsession with symmetry at the time and the desire to make the house look bigger than it was. The two wings were largely cosmetic with stables and storage and services. All the living areas were in the main two story house.

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Georgian Palladian architecture.  The central building is the main residence.  To the left are the kitchen and storerooms and to the right the stables.

Built in 1660 the original owner, Captain Nicholas Mahon, was given lands as reward for his exploits with the forces of Cromwell in taking Ireland. The family did well and by the 1840s had an estate of 11,000 acres. An arranged marriage to another prominent British family, the Pakenhams, led to a combined land holding of 30,000 acres spread through Roscommon,.

During the 1700s and into the 1800s Strokestown prospered.  However in the1840s when the potato blight and the consequent famine struck hard in Roscommon, the then owner Denis Mahon implemented a programme of large scale evictions.

In one year alone (1847) he evicted 3,000 people. Though the excuse for the land clearance was the inability of the Irish tenants to pay rent it seemed to be part of a grander scheme.  Immediate steps were taken to advertise the land thus made available in places like Scotland, where presumably Protestant tenants would be more reliable. The clearances were accomplished largely by “assisted emigration” in particular to Canada. As many as 50% of the passengers died amid extraordinary cruelty on these Famine ships mostly through cholera and typhoid and this prompted outrage.  It climaxed in the murder of Denis Mahon at the end of 1847.  The culprits, presumed to be disaffected tenants weren’t identified, but it led to swift retribution against any family that might have had a remote connection as a conspirator.   Much material that relates to this period is on display in the Museum.  In particular there are many original letters and documents which illustrate the plight of the people and the heartlessness of the landlords.

 

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A list of tenants recommended for relief work, 1846.  The notes in blue provide comments as to whether the person had made an effort to pay their rent.  They were favoured.

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A petition from Kilbeg tenants to the owners requesting whether they will be given assisted immigration.  Tenants were keen to go to foreign lands but many never made it.

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A Notice to Quit on Widow Mary Campbell requesting her to vacate the premises.

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A Civil Bill used where rent was over twelve months in arrears.  The tenants’ annual rent was £11 5s and their arrears were £16.  They were to appear in court to be evicted.

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A receipt for £2 to Margaret Brice on surrendering her house, land and manure upon eviction.  Note signed with her mark, an x

Following the joining with the Pakenhams their money enabled the family to survive and prosper into the twentieth century. The last remaining resident however  was Olive Pakenham-Mahon who lived in the house until 1981.

She decided in 1979 to move to a nursing home and sold the house and lands to local businessman Jim Callelly.  He just wanted the land but one day he visited the basement of his newly acquired house and discovered a treasure trove of historical documents that spelt out in intimate detail the story of the house and the evictions. This prompted him to retain the house, restore it and set up a museum based on this archive. And thank God he did.

The house now is furnished exactly as Olive left it. Many of the original furniture and artefacts remain but a lot were sold off to enable her to survive. Olive lived in one room by the end (the Drawing Room) and the rest of the house was essentially abandoned.

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The Drawing Room

Visitors are now able to tour the house. What I enjoyed is that lived-in feel. Peeling wallpaper, organised clutter. Pictures exactly where she had left them. Monogramed personal items lying around.  A toy room with original toys used by her children.  A nursery with original clothes hanging behind the door.  A classroom.  A massive and elegant dining room.

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Entrance foyer

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The Master’s bedroom

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The Lady’s bedroom

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The Nursery

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The schoolroom

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The toyroom

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The Dining Room

 

There is an amazing kitchen with original stoves, furniture and kitchenware. Our guide related the story that Olive had decided the kitchen was too large and wanted it demolished and a smaller modern kitchen built.  The architect was very reticent and came up with a scheme with false walls and ceilings and modern appliances.  The original kitchen was preserved behind these walls.  Jim Callelly had heard a rumor of this and dismantled it to reveal a treasure frozen in time.  Everything was in place and untouched.

 

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The old Kitchen with its massive range

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Beautiful original cast iron cooking range

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Original Strokestown jug

 

The library is also impressive. A chippendale bookcase said to be one of the best in Ireland. A pecctacular Grandfather clock. Beautiful globes. Certaily a life style very different to that outside these walls.  A classic retreat for the males in the house as was the custom.

 

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The Library

 

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Original 17th Century wallpaper lines the walls of the Library

 

 

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Rare Irish Chippendale bookcase in the Library

 

Many magnificent paintings adorn the walls.  One is of  an ancestral relative, General Pakenham who led the British Army in the Famous Battle of New Orleans. We all remember the history as told by Johnny Horton in his 1959 song

In 1814 we took a little trip
Along with Colonel Jackson down the mighty Mississip.
We took a little bacon and we took a little beans
And caught the British running in the town on New Orleans……..

We fired our guns and the British kept a comin’ …..

You know the rest.  The poor General did not survive but was regarded as a bit of a hero back home.

 

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Portrait of General Edward Packenham hanging in the Foyer

 

Unfortunately as was the case with many Anglo-Irish families when they came upon hard times many paintings and treasures had to be sold.  We are reminded of this when we see the faded areas of the original 17th century wallpaper where these paintings used to hang.

 

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Walls of the Dining Room showing faded areas outlining where original pictures hung.

 

One such painting was a priceless portrait by Bernardi Strozzi of the acclaimed Cremona composer Monteverdi.  The portrait was painted in c1630 and was sold by Olive for £2,000.  A somewhat amateurish copy hangs now in the Drawing Room in its placewhile the original was returned to Venice.

 

An intriguing feature of the house is the Servant’s tunnel.  Entered from behind the stables it heads under the house exiting at the back door of he kitchen.  Built to ensure deliveries and movement of servants took place with no interaction with the house, it is easily accessed today.

 

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Servants’ tunnel under the house

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Entrance to the tunnel

 

Adjacent to the house is a restored walled garden. A large walled garden of around 4 acres.  After a ten year restoration it was opened to the public in 1997 and many of the original features of this pleasure garden have been retained.  There is a croquet lawn and a Summer House, a Lawn Tennis court, a beautiful lily pond, impressive herbaceous borders (the longest in Ireland), a formal rose garden, beautiful manicured hedges and a pergola. lawns and wildflower areas.  I loved it.  But as with the Vandeleur Garden in Clare which I wrote about in a previous blog, the cruel history of the famine sits uneasily with the beauty and bucolic pleasures of this garden.

 

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Herbaceous borders line the walls

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There are formal and informal pathways

 

 

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Croquet Lawn and Summer House

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Detail of Summer house with Autumn foliage

 

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Beautiful ornamental lily pond

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Secluded pathways

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Perfectly manicured hedges

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Numerous hidden spaces lie behind hedges

Another treasure of the estate is the Woodland.  There is a circular walk through this leafy mossy retreat with huge oak and beech trees and thick undergrowth.   It was first planted in the early 1700’s by Thomas Mahon and some of the original trees still exist. During the 1800’s, to increase the pleasure of the shoot, laurels were planted creating a thick undergrowth.  Eventually it took over but it was sensitively restored in 2011.  The fairies have gone a little overboard though and seem to have occupied nearly every tree.

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When old chairs become an art installation.

 

Truly the house, the museum, the garden and the woodland will keep you occupied for four or five hours.  They will be four or five hours well spent.

 

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The Flaggy Shore and Aughinish. Make the time.

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Just a short distance off the N67 which tracks the northern coast of Clare as part of the Wild Atlantic Way is the Flaggy Shore. This is the perfect spot to see the Burren meet the Bay, in this case Galway Bay.  A sweeping stony shoreline with a backdrop of the bare purple hills and the lush green fields beneath.

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Look north across the bay, now calm and peaceful and you see the villages of Galway clinging to the coast and beyond this the misty silhouette of Connemara and the Twelve Pins.

 

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Cliffs of Aughinish in the foreground and the Twelve Pins on the horizon

 

The place has a permanent spot in Ireland’s psyche thanks to one of Seamus Heaney’s most celebrated poems, Postscript.

And some time make the time to drive out west
Into County Clare, along the Flaggy Shore,
In September or October, when the wind
And the light are working off each other ……

Heaney in describing how the poem came to him said:   “I had this quick sidelong glimpse of something flying past; before I knew where I was, I went after it”.

He has said it beautifully of course so I won’t try and improve on those words.  All I can do is attempt to give that feeling in pictures…

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There is no beach, as such, at Flaggy Shore. Just boulders, pebbles and rocky outcrops. But a walk on the strand will well reward. You can stroll along the roadway or explore the limestone platform in the littoral zone.

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This is the best place in the whole of Clare to observe the coral fossils that make up such a large part of the 350 million year old layers. Huge colonies of branching corals (fasciculate lithostrotionids) are sliced at various angles revealing themselves from all perspectives.  Their true branching form can be seen often in section on the rock face. Sometimes the colonies seem completely intact and measure over a metre across. If you have been to the Great Barrier Reef in Queensland it is easy to imagine the warm shallow sea that was once home to these corals and the teeming life that surrounded them.

 

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Planar sectional view through a coral colony

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Large fossil coral colonies on the rock platform

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Excellent view of coral colony showing branching and dendritic form. About a metre across.

 

If you look hard you will see long straight grooves etched into the rock. These are called striations and are caused by the movement of a glacier which smoothed this landscape around 10,000 years ago. Rocks trapped in the ice were dragged along the bottom scouring these cracks. We are able to measure the direction of movement of the ice sheet using this evidence.

 

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Glacial striations on the rock platform at Flaggy Shore

 

If you like watching sea birds, you are in the right place.  As well as gulls, this time of the year starlings gather in flocks and search for food on the sea shore. These murmurations can number thousands of birds and when performing their acrobatic gyrations they make one of the truly spectacular sights in nature. They swoop and soar and flit and glide in perfect concert. It’s only when you freeze this motion with the camera that you see how perfectly aligned is the movement of each individual bird. I could watch them for hours.

 

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Starlings I

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Starlings II

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Eyes left

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Eyes right

 

Aughinish Island, just a few hundred metres across the calm water, is comprised of glacial deposits left behind by the retreating ice as the continent warmed. The Island was originally part of the mainland but a devastating tsunami caused by an earthquake in Portugal in 1755 separated it. The British built a causeway in 1811 to service the troops manning the Martello Tower (built to protect Ireland from Napoleon). It is still the only access to the Island.  The one lane causeway actually connects Aughinsh to County Galway which paradoxically means the fifty residents on the island and the occasional vistor who stumbles on this place must travel through Galway to get access to this part of Clare.

 

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The causeway built to access Auginish

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Peace I

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Peace II

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Peace III

 

For the ‘tourist’ looking for a quick fix there is not much to take you to Aughinish.  But it is a place to walk and breathe.  Where the quiet ambience is tangible.  It has a feeling of calm so unusual for the Atlantic Coast.  You will be unlikely to meet anyone except a farmer attending to his boggy field or another collecting seaweed blown in by Hurricane Ophelia.  But you will get stunning views across the inlet and if you are lucky enough to see the sun disappear behind Black Head you may not want to leave.

 

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Looking across the inlet from Aughinish to the village of Ballyvelaghan

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A Martello Tower built in 1811 to defend the Irish coast from the French.

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Lengthening shadows

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Evening serenity I

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Evening serenity II

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The shoreline on Aughinish.  The softest most comfortable grass you will ever find.

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Vivid red growth on the tidal flats

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The high tide mark left by Hurricane Ophelia which exploded the previous day. 

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Collecting seaweed

 

 

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Life on Aughinish

 

As usual I will let my camera have the last word.

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Categories: My Journey, Real Ireland, Wild Ireland | Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , | Leave a comment

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