Excavations at Caerau Ancient Village, Clynnog, Caernarvonshire, 1933 and 1934

1936 ◽  
Vol 16 (3) ◽  
pp. 295-320 ◽  
Author(s):  
B. H. St. J. O'Neil
Keyword(s):  
Large Area ◽  
Mountain Slope ◽  
Ordnance Survey ◽  
North West ◽  
The Road ◽  
The North ◽  
Excellent Preservation ◽  
A Site ◽  
North And South ◽  
Agricultural Settlement

Mynydd Craig-goch, the westernmost height of a rocky ridge of the Snowdon mountains, slopes gently down to a watershed at the head of the Afon Dwyfach, over which run the railway and the main road from Criccieth and Portmadoc to Caernarvon. Between the ninth and tenth milestones from Caernarvon, immediately to the east of the road and thus on the lowest part of the mountain slope, there lie the remains of a most extensive primitive agricultural settlement. It is not marked on the Ordnance Survey map (6 in. 26 NE.), but was known locally, and the farm within which most of it lies bears the significant name Caerau. Its recognition as a site of great possibilities on account of its excellent state of preservation is due to Mr. W. J. Hemp, F.S.A. The settlement must originally have extended north and south for a distance of about half a mile. It may, indeed, have been contiguous with other settlements on the north and north-west, thus forming part of a large area of cultivated land, since there exists in excellent preservation a house or hut-group of the same type with at least one typical field about one mile to the west on the farm of Cefn Graianog. This point, however, cannot now be determined on account of more recent agricultural developments around the farm of Bodychain.

VII.—Notgrove Long Barrow, Gloucestershire

Archaeologia ◽  
1937 ◽  
Vol 86 ◽  
pp. 119-161 ◽  
Author(s):  
Elsie Margaret Clifford
Keyword(s):  
Northern Boundary ◽  
Ordnance Survey ◽  
North West ◽  
The Road ◽  
The North ◽  
The Village

The Long Barrow lies one mile north-west of the village close to the northern boundary and near the north-west corner of the parish of Notgrove, Gloucestershire. It is situated in a field called ‘Poors' lot’, or ‘Poors' allotment’, by the road from Cheltenham to Bourton-on-the-Water, and is about a quarter of a mile east from Notgrove G.W.R. Station. It is one of the Cotswold long barrows of which there are two others about two miles away, while the Swell group is only four and a half miles distant. It is marked as the remains of a long barrow on the 6-in. Ordnance Survey, Gloucestershire XXVIII. 10, latitude 51° 53′ 20″, longitude 1° 51′ 40″.

Akeman Street and the River Cherwell

1929 ◽  
Vol 9 (1) ◽  
pp. 30-34
Author(s):  
B. H. St. J. O'Neil
Keyword(s):  
Fixed Points ◽  
The South ◽  
The West ◽  
Ordnance Survey ◽  
North West ◽  
The Road ◽  
The North ◽  
Straight Lines

The exact course of the Roman road called Akeman Street in the neighbourhood of the river Cherwell, some 9 miles north of Oxford, for a distance of a little over a mile, has long remained uncertain. The road is traceable from the west as far as the south-east corner of Tackley Park, and from the east as far as the north-west corner of Kirtlington Park. Between these two fixed points the road is, conjecturally, marked on the Ordnance Survey map merely by two parallel dotted straight lines, drawn with the aid of a ruler.

The Portencorkrie Complex of Wigtownshire

1943 ◽  
Vol 80 (5) ◽  
pp. 171-195 ◽  
Author(s):  
Norman Holgate
Keyword(s):  
Geological Survey ◽  
Irish Sea ◽  
Ordnance Survey ◽  
Igneous Complex ◽  
North West ◽  
The North ◽  
Plutonic Rocks ◽  
The Irish Sea ◽  
North And South

The Portencorkrie igneous complex, a trapezoidal area of plutonic rocks intrusive into Silurian sediments, is situated in the Rhinns district of Wigtownshire some sixteen miles south of Stranraer and about four miles north-west of the Mull of Galloway. It appears on the Geological Survey (Scotland) 1-inch Sheet 1, and lies within the Ordnance Survey 6-inch quarter-sheets Wigtownshire 33 S.W. and 37 N.W. To the north and south the igneous margin can be followed with fair accuracy, while to the east the boundary is obscured by drift. Westwards, the rocks pass beneath the Irish Sea.

An Iron Age A site on the Chilterns

1951 ◽  
Vol 31 (3-4) ◽  
pp. 132-148 ◽  
Author(s):  
K. M. Richardson ◽  
Alison Young
Keyword(s):  
Water Supply ◽  
Iron Age ◽  
The West ◽  
North West ◽  
The North ◽  
Roman Villa ◽  
Adjoining Area ◽  
Cursory Examination ◽  
A Site ◽  
The Hill

In 1946 a visit to the barrow, which lies on the edge of the western scarp of Chinnor Common, and a cursory examination of the adjoining area, cultivated during the war, resulted in finds of pottery and other objects indicating Iron Age occupation. The site lies on the saddleback of a Chiltern headland, at a height of about 800 ft. O.D. Two hollow ways traverse the western scarp, giving access to the area from the Upper Icknield Way, which contours the foot of the hill, then drops to cross the valley, passing some 600 yards to the north of the Iron Age site of Lodge Hill, Bledlow, and rising again continues northwards under Pulpit Hill camp and the Ellesborough Iron Age pits below Coombe Hill. The outlook across the Oxford plain to the west is extensive, embracing the hill-fort of Sinodun, clearly visible some fourteen miles distant on the farther bank of the Thames. The hollow way at the north-west end of the site leads down to a group of ‘rises’ hard by the remains of a Roman villa, and these springs are, at the present day, the nearest water-supply to the site.

The Making of the Himalaya, Karakoram, and Tibetan Plateau

2013 ◽  
Author(s):  
Mike Searle
Keyword(s):  
Tibetan Plateau ◽  
Plate Boundary ◽  
Indian Plate ◽  
North West ◽  
Geological Interpretation ◽  
Mountain Ranges ◽  
The Road ◽  
The North ◽  
On The Road ◽  
The Himalaya

My quest to figure out how the great mountain ranges of Asia, the Himalaya, Karakoram, and Tibetan Plateau were formed has thus far lasted over thirty years from my first glimpse of those wonderful snowy mountains of the Kulu Himalaya in India, peering out of that swaying Indian bus on the road to Manali. It has taken me on a journey from the Hindu Kush and Pamir Ranges along the North-West Frontier of Pakistan with Afghanistan through the Karakoram and along the Himalaya across India, Nepal, Sikkim, and Bhutan and, of course, the great high plateau of Tibet. During the latter decade I have extended these studies eastwards throughout South East Asia and followed the Indian plate boundary all the way east to the Andaman Islands, Sumatra, and Java in Indonesia. There were, of course, numerous geologists who had ventured into the great ranges over the previous hundred years or more and whose findings are scattered throughout the archives of the Survey of India. These were largely descriptive and provided invaluable ground-truth for the surge in models that were proposed to explain the Himalaya and Tibet. When I first started working in the Himalaya there were very few field constraints and only a handful of pioneering geologists had actually made any geological maps. The notable few included Rashid Khan Tahirkheli in Kohistan, D. N. Wadia in parts of the Indian Himalaya, Ardito Desio in the Karakoram, Augusto Gansser in India and Bhutan, Pierre Bordet in Makalu, Michel Colchen, Patrick LeFort, and Arnaud Pêcher in central Nepal. Maps are the starting point for any geological interpretation and mapping should always remain the most important building block for geology. I was extremely lucky that about the time I started working in the Himalaya enormous advances in almost all aspects of geology were happening at a rapid pace. It was the perfect time to start a large project trying to work out all the various geological processes that were in play in forming the great mountain ranges of Asia. Satellite technology suddenly opened up a whole new picture of the Earth from the early Landsat images to the new Google Earth images.

scholarly journals XXXVI. An account of the effects of lightening at South Weald, in Essex

1764 ◽  
Vol 54 ◽  
pp. 198-200
Keyword(s):  
The West ◽  
North West ◽  
The Road ◽  
The North ◽  
Neighbouring Country ◽  
The Church

South Weald is a village in Essex, about eighteen miles distant from London, and two to the north west of Brentwood. In the road from London there is an almost continual ascent for the last four or five miles, which makes a considerable eminence above any parts of the neighbouring country. On the highest part of it stands the church, which has at the west end a tower, and in one corner of this there is a round turret, being a continuation of the stair-case, about four feet wide, eight feet high, and the walls of it one foot thick. In the top of the wall of this turret, which was leaded, are fixed several iron bars, that are bent so as to meet in the middle and support a weather-cock, which was put up about sixteen years ago.

scholarly journals Self-gravitating filament formation from shocked flows: velocity gradients across filaments

2020 ◽  
Vol 494 (3) ◽  
pp. 3675-3685 ◽  
Author(s):  
Che-Yu Chen ◽  
Lee G Mundy ◽  
Eve C Ostriker ◽  
Shaye Storm ◽  
Arnab Dhabal
Keyword(s):  
Velocity Gradient ◽  
Unit Length ◽  
Selection Effect ◽  
Major Axis ◽  
Large Area ◽  
North West ◽  
Preferred Direction ◽  
The North ◽  
Velocity Gradients ◽  
Field Lines

ABSTRACT In typical environments of star-forming clouds, converging supersonic turbulence generates shock-compressed regions, and can create strongly magnetized sheet-like layers. Numerical magnetohydrodynamic simulations show that within these post-shock layers, dense filaments and embedded self-gravitating cores form via gathering material along the magnetic field lines. As a result of the preferred-direction mass collection, a velocity gradient perpendicular to the filament major axis is a common feature seen in simulations. We show that this prediction is in good agreement with recent observations from the CARMA Large Area Star Formation Survey (CLASSy), from which we identified several filaments with prominent velocity gradients perpendicular to their major axes. Highlighting a filament from the north-west part of Serpens South, we provide both qualitative and quantitative comparisons between simulation results and observational data. In particular, we show that the dimensionless ratio Cv ≡ Δvh2/(GM/L), where Δvh is half of the observed perpendicular velocity difference across a filament, and M/L is the filament’s mass per unit length, can distinguish between filaments formed purely due to turbulent compression and those formed due to gravity-induced accretion. We conclude that the perpendicular velocity gradient observed in the Serpens South north-west filament can be caused by gravity-induced anisotropic accretion of material from a flattened layer. Using synthetic observations of our simulated filaments, we also propose that a density-selection effect may explain observed subfilaments (one filament breaking into two components in velocity space) as reported in recent observations.

Performance Assessment of a Repository for Intermediate-Level Radioactive Waste Using the Probabilistic System Assessment Program Mascot

1994 ◽  
Vol 353 ◽  
Author(s):  
J. E. Sinclair ◽  
P.J. Agg
Keyword(s):  
Performance Assessment ◽  
North West ◽  
The North ◽  
Deep Geological Disposal ◽  
Safety Case ◽  
Recent Developments ◽  
Radiological Safety ◽  
System Assessment ◽  
Intermediate Level Radioactive Waste ◽  
A Site

AbstractUK Nirex Ltd is planning the deep geological disposal of intermediate- and low-level radioactive wastes. A site close to Sellafield in Cumbria in the north-west of England has been selected for evaluation, and an extensive programme of site characterization is underway. In support of this programme of characterization, and in preparation for presentation of a post-closure radiological safety case, performance assessment using mathematical modelling has been carried out by the Disposal Safety Assessment Team at AEA Technology, on behalf of UK Nirex Ltd. This paper describes recent developments of the assessment models relating to the groundwater pathway for return of radionuclides to the environment.

scholarly journals Evaluation of the Wind Shear at a Site in the North-West of the Yucatan Peninsula, Mexico

2009 ◽  
Vol 33 (1) ◽  
pp. 93-107 ◽  
Author(s):  
Rolando Soler-Bientz ◽  
Simon Watson ◽  
David Infield
Keyword(s):  
Wind Shear ◽  
Yucatan Peninsula ◽  
North West ◽  
The North ◽  
Yucatán Peninsula ◽  
A Site

I.—Belgic and Roman Silchester: the Excavations of 1954–8 with an Excursus on the Early History of Calleva

Archaeologia ◽  
1969 ◽  
Vol 102 ◽  
pp. 1-81 ◽  
Author(s):  
George C. Boon
Keyword(s):  
Field Work ◽  
Early History ◽  
Total Evidence ◽  
The South ◽  
Public And Private ◽  
Ordnance Survey ◽  
North West ◽  
The North ◽  
History Of

SummaryThe excavations were undertaken by the Silchester Excavation Committee supported by donations from public and private bodies and from individuals and by permission of the Duke of Wellington, K.G., F.S.A. Their purpose was the investigation of (a) a previously unsuspected polygonal enclosure of about 85 acres, here named the Inner Earthwork, which lay partly inside and partly outside the line of the familiar Roman town wall; and (b) a western extension to the known line of the Outer Earthwork, which increased the size of this enclosure from about 213 to 233 acres. With the assistance of the Ordnance Survey, the aerial traces of these earthworks, first observed and recorded by Dr. J. K. St. Joseph, F.S.A., were confirmed and extended by field-work and excavation, and have been planned as appears on pl. I.The excavations showed that the Inner Earthwork was a defence of Gaulish ‘Fécamp’ type, and that it was erected, on the south, over an area of late pre-Roman occupation, the first clearly identified at Calleva Atrebatum, but one with strong ‘Catuvellaunian’ influences in its pottery-series. It is claimed that the Inner Earthwork was constructed by the client King Cogidubnus in or shortly after A.D. 43–4, as the defence of this, the most important settlement in the north-west of his dominions. It is further suggested that the Inner Earthwork was replaced by the Outer Earthwork also during the reign of Cogidubnus.The excursus attempts to collate with the results of excavation the earlier discoveries of pre-Conquest material. The total evidence is finally related to the Belgico-Roman topography of Silchester and its neighbourhood, within the historical framework of the century and a half which separated the arrival of the earliest Belgic immigrants in the region from the death of Cogidubnus and the consequent emergence of the Roman Civitas Atrebatum.

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