Stone Circles, Oval Settings and Henges in South-west Wales and Beyond

2003 ◽  
Vol 83 ◽  
pp. 9-45 ◽  
Author(s):  
Timothy Darvill ◽  
Geoffrey Wainwright ◽  
Vanessa Constant ◽  
Yvette Staelens ◽  
Anna Stocks ◽  
...  
Keyword(s):  
Distribution Pattern ◽  
Irish Sea ◽  
British Isles ◽  
South West ◽  
Viewshed Analysis ◽  
Geophysical Surveys ◽  
The Irish Sea ◽  
Multi Phase ◽  
First Time ◽  
Similar Kind

Topographical and geophysical surveys carried out in August 2002 at three monuments in the Preseli Hills of Pembrokeshire are reported: Bedd Arthur, Gors Fawr and Meini Gwyr. Previously unrecorded features were revealed at all three sites, most spectacularly at Meini Gwyr which, from the evidence of geophysical survey, appears to be a multi-phase monument that includes a double pit-circle, hengi-form monument and embanked enclosure with an internal stone circle. Comparisons are made with plans prepared by Flinders Petrie in 1926, published here for the first time. A viewshed analysis of the surveyed sites and others of similar kind in the area allows an appreciation of landscape setting and intervisibility. It is suggested that the stone circles are sited in relation to upland stone sources. All the monuments considered here are compared with contemporary structures recorded elsewhere in the British Isles. It is concluded that while the stone circles and oval setting fit comfortably within a distribution pattern that extends across most of the British Isles, the later phases of Meini Gwyr at least belong to a more localized tradition of monument building focused on the Irish Sea region.

Re-establishment of Orchomenella crenata (Crustacea: Amphipoda) as a distinct species, with a first record of its occurrence in the British Isles

2006 ◽  
Vol 86 (6) ◽  
pp. 1389-1399 ◽  
Author(s):  
Niamh M. Kilgallen ◽  
Alan A. Myers ◽  
David McGrath
Keyword(s):  
Distinct Species ◽  
First Record ◽  
Irish Sea ◽  
British Isles ◽  
Morphological Similarity ◽  
The Irish Sea ◽  
First Time

Orchomenella crenata is recorded for the first time from the Irish Sea. Some authors have previously questioned the validity of this taxon due to its morphological similarity with Orchomenella nana and have placed it in the synonymy of O. nana. The question of its validity is resolved by the re-description and comparison of both species.

scholarly journals Four-Point Mooring

1973 ◽  
Vol 26 (3) ◽  
pp. 387-390
Author(s):  
K. G. Lees
Keyword(s):  
Continental Shelf ◽  
The Other ◽  
Irish Sea ◽  
Thames Estuary ◽  
Deep Diving ◽  
Sea Bed ◽  
Underwater Television ◽  
The Irish Sea ◽  
First Time ◽  
Compression Chamber

H.M.S. Reclaim was built in 1948 by Simons & Co. of Renfrew as a salvage ship of the King Salvor class but altered before completion for her role as a deep diving vessel. She established world deep diving records in 1948 (536 ft., 163 m.) in Loch Fyne, the diver wearing a standard diving dress and breathing a mixture of oxygen and helium, and in 1956 (600 ft., 183 m.) off Norway. In 1964 she carried out a series of dives to 600 ft. for one hour, off Toulon, the divers wearing lightweight self-contained equipment. In 1950 she located the sunk submarine Truculent in the Thames estuary and in 1964 the submarine Affray, when underwater television was used for the first time. In 1966 she recovered a crashed Viscount aircraft in the Irish Sea. Reclaim is now engaged in trials which will eventually permit diving for prolonged periods to 1000 ft., and therefore anywhere on the Continental Shelf.Two divers are lowered to the sea-bed in a submersible compression chamber equipped with underwater lighting and television and in telephonic communication with the ship. While one diver swims out of the chamber to undertake the required task the other acts as attendant. The chamber when hoisted aboard under pressure is locked on to another chamber in the ship's hold, where the divers carry out the process of decompression which may take several hours.H.M.S. Reclaim encounters some unique navigation and seamanship problems when engaged in deep diving.

Dinoflagellate cyst distribution around the British Isles

1972 ◽  
Vol 52 (4) ◽  
pp. 939-944 ◽  
Author(s):  
Philip C. Reid
Keyword(s):  
Red Tide ◽  
Irish Sea ◽  
Intertidal Sediment ◽  
British Isles ◽  
Present Evidence ◽  
Gonyaulax Polyedra ◽  
Large Numbers ◽  
First Time ◽  
Potential Conditions ◽  
Motile Stage

Rich assemblages of acid-resistant microfossils occur in intertidal sediment from the British Isles and are here reported, for the first time, to contain large numbers of dino-flagellate cysts. These cysts provide evidence to show that the distribution of certain dino-flagellate cysts is different from that of the motile stage, that the coastal distribution of cysts appears to be controlled by currents and that their occurrence within bays is possibly related to localized temperature and salinity conditions. Further, they present evidence that potential conditions for a red tide of Gonyaulax polyedra Stein may be present in the east Irish Sea.

Biochemical polymorphism in bass, Dicentrarchus labrax, in the waters around the British Isles

1992 ◽  
Vol 72 (2) ◽  
pp. 357-364 ◽  
Author(s):  
A.R. Child
Keyword(s):  
Dicentrarchus Labrax ◽  
Irish Sea ◽  
Detailed Knowledge ◽  
British Isles ◽  
Stock Management ◽  
Eastern Atlantic Ocean ◽  
Commercial Species ◽  
The Irish Sea ◽  
Southern Norway ◽  
The Uk

The bass Dicentrarchus labrax is found in the eastern Atlantic Ocean from Morocco (30°N) to southern Norway (60°N) and in the Mediterranean and Black Seas (Whitehead et al., 1986). Throughout its range the bass is an important commercial species and in the waters around the British Isles it is exploited both by commercial fishermen and by sport anglers.Since the early 1970s the recorded landings of bass have increased considerably (Pickett & Pawson, 1991). The increased exploitation and the conflict of interest between sport fishermen and commercial bass fishermen have been the subject of a multitude of articles in the fishing press calling for greater stock management. Detailed knowledge of the stock structure was required to provide advice on the management of the UK bass fishery (Pawson & Pickett, 1987).Prior to 1980, tagging studies were conducted off the southern coast of Ireland (Kennedy & Fitzmaurice, 1972), the south-west of England (Holden & Williams, 1974) and in the Irish Sea (Kelley, 1979).

The Diffusion and Distribution Pattern of the Megalithic Monuments of the Irish Sea and North Channel Coastlands

1946 ◽  
Vol 26 (1-2) ◽  
pp. 38-60 ◽  
Author(s):  
Margaret Davies
Keyword(s):  
Distribution Pattern ◽  
Regional Differences ◽  
Irish Sea ◽  
Major Portion ◽  
Different Types ◽  
The Irish Sea

The areas which bound the Irish Sea and North Channel possess physical diversities which offered differing degrees of attraction to megalith building peoples. This paper attempts a discussion of those regional differences and of their influence on settlement and intercommunication during the centuries in which the different types of megalith were being built. The Irish Sea basin and its narrower northern strait are fringed by lands in which lie the major portion of our British megaliths. The main reason for this is to be found in the existence of marine highways along the Irish Sea and along the arms which it pushes into the land, and in the presence of connecting routes across the peninsulas which bound its bays.

scholarly journals Signature of cryptic sedimentary basin inversion revealed by shale compaction data in the Irish Sea, western British Isles

Tectonics ◽  
2009 ◽  
Vol 28 (4) ◽  
pp. n/a-n/a ◽  
Author(s):  
Simon P. Holford ◽  
Jonathan P. Turner ◽  
Paul F. Green ◽  
Richard R. Hillis
Keyword(s):  
Sedimentary Basin ◽  
Irish Sea ◽  
British Isles ◽  
Basin Inversion ◽  
The Irish Sea

Between Mountains and Sea: a Reconsideration of the Neolithic Monuments of South-west Scotland

2002 ◽  
Vol 68 ◽  
pp. 125-146 ◽  
Author(s):  
Vicki Cummings
Keyword(s):  
Irish Sea ◽  
Landscape Approach ◽  
South West ◽  
The Irish Sea ◽  
Neolithic Monuments

For many years the chambered tombs of south-west Scotland were considered important in understanding the origins of monumentality in Britain. In particular scholars focused on the classification of these monuments in order to understand how ideas about the Neolithic may have spread along and across the Irish Sea. However, the classification of these monuments may be rather more problematic than was once imagined. Among other things, the excavation of a number of them has revealed complex and diverse construction sequences. This paper presents the results of an examination of the landscape settings of the chambered tombs in south-west Scotland. It suggests that a landscape approach can assist in our understanding of the classification and use of these monuments. In addition, the setting of sites within the landscape can also inform us about the nature of the Neolithic in this region of Scotland.

The prevalence of Hematodinium in Nephrops norvegicus from the western Irish Sea

2002 ◽  
Vol 82 (3) ◽  
pp. 427-433 ◽  
Author(s):  
R.P. Briggs ◽  
M. McAliskey
Keyword(s):  
Swimming Performance ◽  
Irish Sea ◽  
Published Data ◽  
Infection Prevalence ◽  
Nephrops Norvegicus ◽  
Seawater Salinity ◽  
High Infection ◽  
The Irish Sea ◽  
Seasonal Infection ◽  
First Time

Infection of Nephrops norvegicus by a dinoflagellate parasite belonging to the genus Hematodinium, is reported in populations of Nephrops from the Irish Sea. Diseased animals are recognized by an opaque vivid body colour and high densities of parasites in the haemolymph. Infection causes a general morbidity of the host along with a reduction in swimming performance, which eventually leads to the death of the host lobster. Research vessel cruises performed over the period 1994–2001 have shown Hematodinium to occur in populations of Nephrops from the Irish Sea throughout this period. High infection prevalence during the month of April and negligible levels during October agree with published data on seasonal infection levels in Scottish Nephrops stocks. Data on spatial and temporal infection prevalence are presented for the first time for the Irish Sea and show variation between stations and between years. Mean infection prevalence peaked at 18% of captured Nephrops during April 1996 and was followed by a downward trend to 2001. Infection predominates in small Nephrops (<30 mm carapace length) and in females is normally associated with immature animals. Although a positive correlation with seawater salinity was noted, preliminary analysis did not show a relationship between prevalence and other environmental factors.

The Irish case

2018 ◽  
pp. 207-224
Author(s):  
Eric Richards
Keyword(s):  
Population Growth ◽  
International Migration ◽  
Irish Sea ◽  
Growing Up ◽  
British Isles ◽  
Irish Population ◽  
Economic Expansion ◽  
Great Famine ◽  
Irish Case ◽  
The Irish Sea

This chapter deals with Ireland’s place in the more generic context of the origins of migration from the British Isles. The first crescendo of mass international migration came in the mid-1840s and was disproportionately Irish. Population growth, famine and emigration in the Irish case are commonly regarded as tied together inextricably. The spread of the potato facilitated economic expansion which included ‘a huge movement of population from east to west with new communities growing up in previously little populated areas’. The potato failure in 1846 produced catastrophic levels of mortality and then massive migration. The evacuation of rural Ireland eventually issued forth into a flood of emigrants across the Irish Sea and across the Atlantic. Whatever the ideological assumptions, the readjustment of agriculture in Ireland, especially in the decades of the Great Famine, was radical and ruthless.

An Occurrence of Detrital Diaspore in South Wales

1940 ◽  
Vol 77 (1) ◽  
pp. 74-76 ◽  
Author(s):  
J. C. Griffiths ◽  
Alan Stuart
Keyword(s):  
Specific Gravity ◽  
Irish Sea ◽  
Iron Ores ◽  
Glacial Deposits ◽  
Double Refraction ◽  
South West ◽  
South Wales ◽  
Boulder Clay ◽  
The Irish Sea

During the course of a petrological investigation by one of us (J. C. G.) of the glacial deposits in South-West Wales, samples from a sandy boulder clay at Ludchurch in South-East Pembrokeshire were found to contain abundant grains of a platy colourless mineral with a specific gravity greater than 2·9, a perfect pinacoidal cleavage and high double refraction. This was ultimately diagnosed as diaspore, with which were associated various iron ores, zircon, rutile, chlorite, various tourmalines (brown, green, and pink being the commonest), pyroxenes, amphiboles, staurolite, kyanite, brookite, anatase, topaz, garnet, apatite, muscovite, and andalusite, an assemblage typical of the Irish Sea Drift of this district. A search through the literature for a description of detrital diaspore showed that there did not appear to have been published any detailed description with figures of the detrital forms.

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