Showing posts with label greywacke. Show all posts
Showing posts with label greywacke. Show all posts

Thursday, 13 April 2017

Painting with light: the three most highly decorated kerb stones at Newgrange in gorgeous detail

To celebrate the fact that the Mythical Ireland Facebook page has just passed 30,000 likes, I am revealing these three images of the most decorated kerb stones at Síd in Broga (Newgrange). The photos were taken in the pre-dawn twilight around winter solstice, with the kind permission of the Office of Public Works (OPW). In order to capture these stones in a way that has probably never been seen before, I used an old technique called "painting with light".

Kerb stone 52 at Newgrange, which is diametrically opposite the entrance kerb stone, K1.
My favourite of the three is the above photo of kerb 52 (K52), which can be found at the very rear of the mound, diametrically opposite the entrance kerb stone (K1). I'd only ever previously been able to photograph this stone in daylight. And while I have a couple of nice photos of it, I always longed to use the painting with light technique on it. The image was captured by putting the camera on a tripod and keeping the shutter open for about 15 seconds. During this time, I was "painting" the stone with light using a small LED torch, first from the right and then from the left. The result is an image that I've been waiting for years to achieve. I hope you like it. I have speculated that it contains representations of stars we know today as Orion's Belt and Sirius. At the time of the construction of Newgrange, Sirius was visible from its interior chamber as it transited the roof box.

Spirals on the entrance kerb stone at Newgrange, kerb 1 (K1).
The entrance kerb stone at Newgrange is one of the most famous artefacts from the ancient world, and its design has been photographed perhaps millions of times over the decades. One of the OPW guides at Newgrange regularly tells visitors that "it's the most photographed stone in the world, after Mick Jagger"! Sometimes, especially in midwinter, the evening sunlight catches this stone so that it is illuminated at a very shallow angle, which is the perfect angle for bringing out the relief. I have in previous years been able to get a nice photo using remote flash to achieve the same result. However, I still think that the above image, painted with light during dark twilight, is better than anything I would have achieved during the day.

Kerb stone 67 with its double spiral, triangles and lozenges.
The other of the three most decorated kerb stones at Newgrange, and perhaps the least famous, is this one, kerb 67. It is remarkable that of the 97 huge greywackle slabs that form the kerb around Newgrange, only three are highly decorated. There are carvings on plenty of others, but K1, K52 and K67 are the only stones that feature designs over most of their visible surface. Fascinatingly, there are some stones that are decorated on their rear side, where the carvings cannot be seen.

Monday, 1 June 2015

An investigation of the alignment of the passage of Fourknocks passage-tomb

Several years ago I wrote about the Cygnus Enigma and the apparent orientation of Newgrange towards Fourknocks and the orientation of Fourknocks towards a place on the horizon where the brightest star of the swan constellation (Cygnus) would have been rising after its brief glance with the horizon towards the north. Recently I've been looking at this alignment system in more detail, and that study has yielded more interesting results and fascinating possibilities.

SUMMARY


A plan of Fourknocks.
I will summarise what's been written already, before going into new detail. In a nutshell, Newgrange points towards Fourknocks, although neither site is visible from the other. Fourknocks lies about 15km (approx. 9 miles) to the southeast of Newgrange. There are two intervening hills that block the intervisibility of the sites - Red Mountain and Bellewstown. Fourknocks lies at approximately 137.95 degrees of azimuth from Newgrange, according to Google Earth. This would place it on the edge of the range of azimuths covered by the Newgrange solstice alignment, which, according to Patrick (1974) were 133° 42' to 138° 24', while Ray (1989) says the range is 133° 49' to 137° 29'. The best way to try to visualise this is that as the sunlight is retreating from the chamber of Newgrange at solstice, the sun is directly above Fourknocks.

Fourknocks, in turn, has a passage that is aligned to approximately 14° azimuth, in the far northeast. Richard Moore and I had suggested that Fourknocks is aligned in the direction of the Baltray standing stones on the northern side of the Boyne Estuary (Island of the Setting Sun, 2006) and that the two stones lined up to point back towards Fourknocks, even though neither site was visible from the other.

New discoveries


It is this alignment – the axis of the Fourknocks alignment – that has yielded fascinating new information.

Sitting on the sill stone of the rear recess of the Fourknocks chamber, looking out through the passageway to the far horizon, one is looking at a hill towards the north-northeast called Mullaghteelin. Near the summit of Mullaghteelin, directly on the alignment as viewed from Fourknocks, is a barrow (ME027-034----), probably dating to the Bronze Age.

The photograph on right shows the view out through the passage, with Mullaghteelin barrow indicated on the horizon.

Using a map, or better still Google Earth, the alignment can be seen to continue through Donacarney village before crossing the Boyne river and pointing towards the Baltray standing stones. This is where Google Earth has real value in the investigation of long ley lines or straight track alignments. Zooming in on Baltray, we see that both stones are situated on the axis of this alignment from Fourknocks:


The two stones are circled in red - the larger stone has a bigger circle around it. We didn't have this wonderful program when we wrote Island of the Setting Sun in 2006, but it's wonderful to see how accurate the alignment really is. Whether this alignment was created intentionally is an entirely different matter, but one wonders, given the existence of several long-distance alignments of ancient monuments, if indeed the ancients had skills beyond which we give them credit for.

Stones


Here's where it gets really interesting. If you continue the line from Fourknocks beyond Baltray standing stones, you will find that it eventually hits the shoreline on the Irish Sea coast at Clogherhead. It then travels across Dundalk Bay and eventually meets the shoreline of a stony beach on the southern shore of the Cooley peninsula at Rathcor/Templetown. Both of these shores –  Clogherhead and Rathcor/Templetown – were locations where stone for Newgrange was sourced.

Clogherhead (above) was the source of the greywacke slabs that were used as kerbstones, passage orthostats and large structural stones in the chamber of Newgrange. An estimated 200 of these rocks, weighing on average three tonnes apiece, were brought from the shoreline at Clogherhead by boat down along the Irish Sea and up the river Boyne to Brú na Bóinne. For more about the transportation of these greywacke slabs, see Newgrange - Monument to Immortality.



Rathcor and Templetown beaches are littered with rocks of all different types and sizes. Most interesting of these are the granite cobbles which, it is said, were brought from this area to Newgrange to be placed among the white quartz stones that decorate the front of the monument. Again, these would have been transported by sea, across Dundalk Bay, around Clogherhead and then up the Boyne.

So, whether by accident or design, the Fourknocks passage points towards two of the three locations from which it is said that stone was sourced for the construction of Newgrange.

There's more ...


Just for the sake of it, I looked at the alignment in the opposite direction, south-southwest from Fourknocks. Interestingly, it points towards the Blessington Lakes in Co. Wicklow, some 30 miles or 50 kilometres distant approximately. Now this really is a stretch of the imagination, I'll readily admit, but we've all been told that Wicklow is the likely source of the milky quartz at Newgrange, although the exact location or quarry from which it was extracted has never been found. I've heard it suggested that Blessington is a possible source. It could have been transported from that area by barge down the Liffey River into the Irish Sea and from there up to the Boyne.


If the Blessington area turned out to be the source of the Newgrange quartz (and it's by no means anything other than a possibility at this point in time), then the Fourknocks alignment would "point to" all of the major sources of stone for the construction of Newgrange - the greywacke from Clogherhead, the granite cobbles from Cooley and the quartz stones from Wicklow. As it stands, we can say that Fourknocks definitely does point to two areas from which stone was sourced. The third remains an unknown, but Blessington is a possibility.

More recently, Rockabill islands off the coast of Dublin have been suggested as a possible source of the milky quartz at Newgrange. This is equally interesting, because the larger of the two standing stones at Baltray points towards Rockabill for winter solstice sunrise.

Just to finish, the Fourknocks alignment also points to a peak called Eagle Mountain in the Mourne Mountains in the far distance, which are easily visible from Fourknocks on a clear day. I'm not sure if there's any particular significance to this peak to tie in with the alignment. Geologists have told us that the cobble stones from Rathcor/Templetown have their origin in the Mournes. It has recently been revealed that an x-ray study of the granite cobbles of Newgrange is to be undertaken to ascertain their precise original source. Read more here.