Results 221 to 230 of about 3,418 (261)

Some New Lower Carboniferous Gasteropoda

Quarterly Journal of the Geological Society of London, 1912
Eight species are here described, all characterized by the presence of a band on the whorls: in seven it is probably the result of a sinus or slit in the outer lip, but in the eighth it is merely ornamental, as the lines of growth pass over it. These species are referable to six genera or subgenera, five of which are new, namely
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VI.—On the Classification of the Lower Carboniferous Rocks

Geological Magazine, 1910
In this communication it is proposed to briefly note the divisions which have been proposed for the Lower Carboniferous Rocks of Great Britain and Belgium; to discuss their validity in the light of the important additions that have been made to our knowledge during the last few years; and to suggest a new classification which, while expressing the ...
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Lower carboniferous Bryozoa from Scotland

Geological Journal, 1969
AbstractEight species of Bryozoa, two of them new, have been noted from limestones and calcareous shales of the Lower Limestone Group from Hessilhead Quarry, Beith.
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The Lower Carboniferous of the Skyreholme Anticline, Yorkshire

Geological Magazine, 1928
The area east of the Burnsall Knolls in the north-east Lowlands of Craven is occupied by limestones of the Northern facies type, apparently unaffected by the presence of the North Craven Fault.The beds are overlain unconformably by the Grassington Grit, which, overstepping the flanks of the Skyreholme anticlne, thus continues to the south the ...
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LOWER CARBONIFEROUS PALAEOGEOGRAPHY OF THE BRITISH ISLES

Proceedings of the Yorkshire Geological Society, 1958
Summary Palaeogeography rests in a well-founded stratigraphy. Rigidly defined palaeontological zones are of very limited use in neritic rocks, and their criteria must be relaxed and adapted to changing fossil associations to meet the needs of wide-ranging regional studies: in particular, Vaughan’s scheme, though the most convenient, is ...
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Reef Distribution in the British Lower Carboniferous

Nature, 1969
IT has been known at least since the work of Hudson1 that reefs in the British Dinantian occur in the boundary regions between subsiding basins and rigid blocks, and that they are found at two principal horizons—in the basal Visean C2 zone (of northern England) and in the middle Visean D1 zone. The Lower Carboniferous sea was transgressive and, because
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THE LOWER CARBONIFEROUS OF THE CASTLETON DISTRICT, DERBYSHIRE

Proceedings of the Yorkshire Geological Society, 1947
( Read, September, 1945). I. Introduction. The area under consideration forms the northern edge of the Carboniferous limestone plateau described by Shirley and Horsfield in 1940, and includes the narrow gorges of the Winnats, Cave Dale and Pin Dale. The lower ground to the west, north and northeast is occupied by Edale Shales which were shown to be ...
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Lower Carboniferous Conodonts from Spiti

Journal Geological Society of India, 1986
Abstract The present paper records Lower Carboniferous conodont fauna from the grey micritic limestone lying immediately above the Muth Formation exposed along the left bank of the Takche nala, between Kunzam La and Losar, Spiti valley, Himachal Pradesh.
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Lower Carboniferous Reefs of Northern England

AAPG Bulletin, 1957
ABSTRACT In this paper a general account is given of a peculiar facies in the Lower Carboniferous of Northern England, the origin of which has given rise to much controversy. This facies is most prominently displayed in the limestone hills named “reef knolls” by Tiddeman.
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Tumors in the Lower Carboniferous

Science, 1927
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