Monday, 14 December 2015

"Rhosyfelin - Not A Quarry" Press Release

"Earth scientists who have worked at a "bluestone monolith quarry" site at Craig Rhosyfelin in Pembrokeshire have suggested that the archaeologists have got it all wrong, and that the so-called "engineering features" on the flank of the crag are entirely natural. Further, it is suggested that members of the digging team have unconsciously created the very features that they have cited in support of their quarrying hypothesis.

In a peer-reviewed paper published on 14th December 2015 in the peer-reviewed journal "Archaeology in Wales" journal Dr Brian John, Dr Dyfed Elis-Gruffydd and John Downes have described a set of Ice Age deposits and landforms at the site of an archaeological dig that was started in 2011, and have determined that there are no traces of human intervention in any of the features that have made the archaeologists so excited.... "


This research can be freely downloaded from Researchgate, and is also available from the journal office in hard copy.

JOHN, B.S., ELIS-GRUFFYDD, D. & DOWNES, J. (2015b). Observations on the supposed ‘Neolithic Bluestone Quarry’ at Craig Rhosyfelin, Pembrokeshire. Archaeology in Wales 54, pp 139-148.

https://www.researchgate.net/publication/286775899_OBSERVATIONS_ON_THE_SUPPOSED_NEOLITHIC_BLUESTONE_QUARRY_AT_CRAIG_RHOSYFELIN_PEMBROKESHIRE

Friday, 11 December 2015

Reused Stones at Stonehenge

Mike Parker Pearson talks about the possible reuse of the Bluestones at Stonehenge from another monument and how other neolithic monuments show this property : http://theconversation.com/stonehenge-isnt-the-only-prehistoric-monument-thats-been-moved-but-its-still-unique-51962

Another archaeologist, and I can't be sure who it wa, mused to me about whether Stone 56, the tallest sarsen stone at Stonehenge was a reused stone some time ago. The fact what is now the buried portion of the stone is as finely worked as the rest was a factor in his suspicions.

Monday, 7 December 2015

Video Of Carrying Bluestones Through The Mountains

Or actually a similar weight of automobile in Nepal...



Vehicle arrived in Kathmandu Valley up the mountain passes from Bhimphedi on the back of porters. There was no motorable road into the valley and inside it there were just a few kilometers of road wide enough for driving up and down Kathmandu and Patan. The Rana rulers of Nepal started importing vehicles for their own use and for the use of the King. The first car was imported during the time of Chandra Shumsher at the turn of the last century. The Mercedes Benz gifted by Adolf Hitler to Maharajah Juddha Shumsher in 1939 A.D., part of a diplomatic overture to influence Nepal to stay out of WWII, was also carried in this manner to Kathmandu.

Stonehenge quarries found 140 miles away in Wales - Full Press Release

A team of archaeologists and geologists working in Wales have found two of the quarries that provided stones for Stonehenge. The very large standing stones at Stonehenge are of ‘sarsen’, a local sandstone, but the smaller ones - known as ‘bluestones’ - come from the Preseli hills in Pembrokeshire. Geologists have known since the 1920s that the bluestones were brought to Stonehenge from somewhere in the distant Preseli Hills, but only now has there been collaboration with archaeologists to locate and excavate the actual quarries from which they came.
“This has been a wonderful opportunity for geologists and archaeologists to work together” said Mike Parker Pearson, director of the project and professor of British later prehistory at University College London.  “The geologists have been able to lead us to the actual outcrops where Stonehenge’s stones were extracted.”
The Stonehenge bluestones are of volcanic and igneous rocks, the most common of which are called dolerite and rhyolite. Richard Bevins of the National Museum of Wales and Rob Ixer, honorary senior researcher at UCL and University of Leicester, have identified the outcrop of Carn Goedog as the main source of Stonehenge’s ‘spotted dolerite’ bluestones and the outcrop of Craig Rhos-y-felin as a source for one of the ‘rhyolite’ bluestones. Archaeological excavations at both sites have uncovered evidence of prehistoric quarrying.
The special formation of the rock, which forms natural pillars at these outcrops, allowed the prehistoric quarry-workers to detach each megalith (standing stone) with a minimum of effort. “They only had to insert wooden wedges into the cracks between the pillars and then let the Welsh rain do the rest by swelling the wood to ease each pillar off the rock face” said Dr Josh Pollard of the University of Southampton. “The quarry-workers then lowered the thin pillars onto platforms of earth and stone, a sort of ‘loading bay’ from where the huge stones could be dragged away along trackways leading out of each quarry.”
The team of scientists includes researchers from UCL, the universities of Manchester, Bournemouth and Southampton, the National Museum of Wales, and Dyfed Archaeological Trust. Professor Colin Richards of Manchester University, an expert in Neolithic quarries, said “The two outcrops are really impressive – they may well have had special significance for prehistoric people. When we saw them for the first time, we couldn’t believe our luck.”
Radiocarbon-dating of burnt hazelnuts and charcoal from the quarry-workers’ camp fires reveals that there were several occurrences of megalith-quarrying at these outcrops. Stonehenge was built during the Neolithic period, between 4,000 to 5,000 years ago. Both of the quarries in Preseli were exploited in the Neolithic, and Craig Rhos-y-felin was also quarried in the Bronze Age, around 4,000 years ago.
“We have dates of around 3400 BC for Craig Rhos-y-felin and 3200 BC for Carn Goedog, which is intriguing because the bluestones didn’t get put up at Stonehenge until around 2900 BC” said Parker Pearson. “It could have taken those Neolithic stone-draggers nearly 500 years to get them to Stonehenge, but that’s pretty improbable in my view.  It’s more likely that the stones were first used in a local monument, somewhere near the quarries, that was then dismantled and dragged off to Wiltshire.”
Professor Kate Welham of Bournemouth University thinks that the ruins of any dismantled monument are likely to lie somewhere between the two megalith quarries: “We’ve been conducting geophysical surveys, trial excavations and aerial photographic analysis throughout the area and we think we have the most likely spot. The results are very promising - we may find something big in 2016.”
The megalith quarries are on the north side of the Preseli hills, and this location undermines previous theories about how the bluestones were transported from Wales to Stonehenge.  Previous writers have often suggested that bluestones were taken southwards from the hills to Milford Haven and then floated on boats or rafts, but this now seems unlikely. “The only logical direction for the bluestones to go was to the north then either by sea around St David’s Head or eastwards overland through the valleys along the route that is now the A40” said Parker Pearson. “Personally I think that the overland route is more likely. Each of the 80 monoliths weighed less than 2 tons, so teams of people or oxen could have managed this. We know from examples in India and elsewhere in Asia that single stones this size can even be carried on wooden lattices by groups of 60 – they didn’t even have to drag them if they didn’t want to.”
Phil Bennett, archaeologist for the Pembrokeshire Coast National Park, said: “This project is making a wonderful contribution to our knowledge of the region’s importance in prehistory.” The new discoveries may also help to understand why Stonehenge was built. Parker Pearson and his team believe that the bluestones were erected at Stonehenge around 2900 BC, long before the giant sarsens were put up around 2500 BC. “Stonehenge was a Welsh monument from its very beginning. If we can find the original monument in Wales from which it was built, we will finally be able to solve the mystery of why Stonehenge was built and why some of its stones were brought so far”.
The project’s results are published this month in the journal Antiquity and in the January issues of British Archaeology and Current Archaeology.  It also features in a new book published this month by the Council for British Archaeology, Stonehenge: making sense of a prehistoric mystery. Further excavations are planned for 2016.

The project is led by Prof. Mike Parker Pearson (UCL), Dr. Richard Bevins (National Museum of Wales), Dr. Rob Ixer (UCL and University of Leicester), Dr. Josh Pollard (University of Southampton), Prof. Colin Richards (University of Manchester), Mr. Duncan Schlee (Dyfed Archaeological Trust) and Prof. Kate Welham (Bournemouth University). It has been funded by the National Geographic Society, the Society of Antiquaries of London, the Royal Archaeological Institute, the National Museum of Wales and the Cambrian Archaeological Association, with support from the Pembrokeshire Coast National Park.

Thursday, 3 December 2015

Looking into Postholes


I have a belief that many postholes held inverted trees - just a belief, no evidence - so I was interested to see the posthole Josh Pollard et al excavated on the West Kennet Avenue near to Avebury which was in a tree throw hollow and maybe was that tree being resurrected, maybe upside down.

This is just a few brief notes I have made on other posthole shapes for my further rumination.


Seahenge 

2049BCE

" Inverting the central tree" 

“ It is probable that the central pit was excavated first, and the great inverted tree was drawn into place with the aid of the ropes. The alternative is to suggest that the central tree was transported over the construction trench for the timbers, which seems unlikely. It is likely that the excavation of the 1.50 m deep pit would have penetrated below the water table, and would have required bailing. The authors can state from experience that this would have been a particularly difficult and dirty task. The central tree was drawn to the edge of the pit and then reharnessed around its girth to provide leverage for the inversion. After the tree was pushed and pulled into place the ropes were not retrievable, and remained in the tow-holes. The knot used for the inversion was left wedged in the side of the pit …
…The sides of the hole had been moulded to the size and shape of the lower part of the tree and despite excavation into the sides and base of the feature no additional fill was identified.” (1)

So a vertical pit without a ramp for an inverted tree:



Durrington Walls 

 ~ 2600BCE
Postholes, many with ramps.
 (2)


West Kennet Avenue  -

c.3400–2900 BC

One deep posthole found in 2015 within a tree throw hollow – no ramp (but complete hole not excavated.)
 (3)


Stonehenge Mesolithic Postholes

The new posthole markers (tree throw marker to fore).


No ramps and a tree throw.

Pine charcoal in pit A HAR-455 dates 8800-7790BC.
Pine charcoal in pit B HAR-456 dates 7490-6640BC.



(4)
 (5)

Spot marked D is an unreported disturbance spotted in a trench during the restoration of the carpark to grassland.



Click any picture to embiggen.




1: The Survey and Excavation of a Bronze Age Timber Circle at Holme-next-the-Sea, Norfolk, 1998–9. Mark Brennand, Maisie Taylor, Trevor Ashwin, Alex Bayliss, Matt Canti, Andrew Chamberlain, C.A.I. French, Val Fryer, Rowena Gale, F.M.L. Green, Cathy Groves, Allan Hall, Neil Linford, Peter Murphy, Mark Robinson, James Wells and David Williams Proceedings of the Prehistoric Society / Volume 69 / January 2003, pp 1 - 84 DOI: 10.1017/S0079497X00001250, Published online: 18 February 2014 http://journals.cambridge.org/abstract_S0079497X00001250



2: Wainwright, G J, and Longworth, I H, 1971, Durrington Walls excavations, 1966-1968 (Reports of the Research Committee of the Society of Antiquaries of London 29). London: Society of Antiquaries



3: Living on the Avenue: investigating settlement histories and other events at West Kennet, near Avebury : Mark Gillings, Mike Allen, Charly French, Rosamund Cleal, Nick Snashall, Alistair Pike & Joshua Pollard http://www.prehistoricsociety.org/files/PAST_81_for_web.pdf



4: Cleal, R. M. J., Walker, K. E. and Montague, R., 1995, Stonehenge in its landscape: Twentieth century excavations English Heritage Archaeological Report 10



5: Google maps annotated by T C Daw

Wednesday, 2 December 2015

Welcome to Rybury

With a great nephew having recently arrived and been given the splendid middle name of Rybury I was prompted to search out the report on Rybury and its causewayed enclosure. It is overlain by the much more prominent Iron Age hill fort but because it is tilted off the crown of the hill it is still mostly visible. The Iron Age folk being more concerned with building a defensive position ringed the crown of the hill.


Th detailed report on the causewayed enclose is at http://archaeologydataservice.ac.uk/archiveDS/archiveDownload?t=arch-1416-1/dissemination/pdf/9781848021877_ALL.pdf

Britain from Above has some 1947 photos of the area as well:

Rybury Camp, All Cannings, 1947 - Britain from Above