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See also:BUNTING (a word of doubtful origin, possibly connected with bunt, to sift, or with the Ger. bunt, of varied See also:colour)
, a loosely See also:woven. woollen See also:cloth for making flags; the See also:term is also used of a collection of flags, and particularly those of a See also:ship
.
of this subdivision is made up of weakly-cemented, coarse-grained sandstones, oblique lamination is very prevalent, and occasional conglomeratic beds make their See also:appearance
.
The uppermost See also:bed is usually See also:fine-grained and bears the footprints of Cheirotherium
.
In the See also:Vosges See also:district, this subdivision of the See also:Bunter is called the Gres See also:des Vosges, or the Gres See also:principal, which comprises: (i.) red micaceous and argillaceous See also:sandstone; (ii.) the conglomirat principal; and (iii.) Gres bigarre principal (=gres des Vosges, properly so-called)
.
(3) See also:Lower Buntsandstein, fine-grained clayey and micaceous See also:sand-stones, red-See also:grey, yellow, See also: Southward they may be followed through See also:west See also:Somerset to the cliffs of Budleigh Salterton in See also:Devon; while northward they pass through See also:north See also:Staffordshire, See also:Cheshire and See also:Lancashire to the Vale of See also:Eden and St Bees, reappearing in See also:Elgin and See also:Arran . A de-posit of these rocks lies in the Vale of Clwyd and probably flanks the eastern See also:side of the Pennine Hills, although here it is not so readily differentiated from the See also:Keuper beds . The See also:English Bunter rests with a slight unconformity upon the older formations . It is generally absent in the See also:south-eastern counties, but thickens rapidly in the opposite direction, as is shown by the following table: Lancashire and See also:Leicestershire and W . Cheshire . Staffordshire . See also:Warwickshire . (1) Soo ft . 50-200 ft . Absent (2) 500-750 ft . 100.300 ft . 0-100 ft .
(3) 200-500 ft
.
0-100 ft
.
Absent
The material forming the Bunter beds of England came probably from the north-west, but in See also:Devonshire there are indications which point to an additional source
.
In the Alpine region, most of the Trias differs markedly from that of England and See also:northern See also:Germany, being of distinctly marine origin; here the Bunter is represented by the Werfen beds (from Werfen in See also:Salzburg) in the northern See also:Alps, a See also:series of red and greenish-grey micaceous shales with See also:gypsum, See also:rock See also:salt and limestones in the upper See also:part; while in the See also:southern Alps (S
.
See also:Tirol) there is an upper series of red clays, the Campil beds, and a lower series of thin sand-stones, the Seis beds
.
Mojsisovics von Mojsvar has pointed out that the Alpine Bunter belongs to the single See also:zone of Natica costata and Tirolites See also:cassianus
.
Fossils in the Bunter are very scarce; in addition to the footprints of Cheirotherium, See also:direct See also:evidence of .amphibians is found in such forms as Trematosaurus and Mastodonsaurus
.
Myophoria costata and Gervillea Murchisoni are characteristic fossils
.
See also:Plants are represented by Voltzia and by equisetums
and ferns
.
In England, the Bunter sandstones frequently See also:act as valuable
reservoirs of underground See also:water; sometimes they are used for See also:building See also: For a See also:consideration of the relationship of the Bunter beds to formations of the like See also:age in other parts of the See also:world, see TRIASSIC See also:SYSTEM . (J . A . |
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