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His 1864 paper On the Physical Cause of the Changes of Climate during Glacial Epochs led to a position in the Edinburgh office of the Geological Survey of Scotland, as keeper of maps and correspondence, where Sir Archibald Geikie, encouraged his research. He was eventually to become a Fellow of the Royal Society. [65]
The Ohio River at Cairo is 281,500 cu ft/s (7,960 m 3 /s); [1] and the Mississippi River at Thebes, Illinois, which is upstream of the confluence, is 208,200 cu ft/s (5,897 m 3 /s). [66] The Ohio River flow is greater than that of the Mississippi River, so hydrologically the Ohio River is the main stream of the river system.
The geology of the Highlands is complex. Along the western coastal margin it is characterised by Lewisian gneiss, the oldest rock in Scotland. Liathach, Beinn Alligin, Suilven, Cùl Mòr, Cùl Beag, and Quinag are just some of the impressive rock islands of the significantly younger rich brown-coloured Torridonian sandstone which rests on the ...
The Spey is the longest stretch of river in Scotland bearing the same name throughout, though that does include Loch Insh. River Clyde: 158 kilometres (98 mi) 168.4 kilometres (104.6 mi) The river length is measured to Dumbarton Rock, the estuary to the Firth of Clyde at Ardmore Point. River Tweed: 162 kilometres (101 mi) 162 kilometres (101 mi)
The geology of Great Britain is renowned for its diversity. As a result of its eventful geological history, Great Britain shows a rich variety of landscapes across the constituent countries of England, Wales and Scotland. Rocks of almost all geological ages are represented at outcrop, from the Archaean onwards.
British Regional Geology. The Grampian Highlands (4 ed.). Her Majesty's Stationery Office, London: British Geological Survey. Trewin, N. H., ed. (2002). The Geology of Scotland. The Geological Society, London. Wilson, Tuzo (14 July 1962). "Cabot Fault, An Appalachian Equivalent of the San Andreas and Great Glen Faults and some Implications for ...
The geography of Scotland is varied from rural lowlands to unspoilt uplands, and from large cities to sparsely inhabited islands. Located in Northern Europe, Scotland comprises the northern part of the island of Great Britain as well as 790 surrounding islands encompassing the major archipelagos of the Shetland Islands, Orkney Islands and the Inner and Outer Hebrides. [3]
Lewisian gneiss at Assynt. The Northwest Highlands were, and still are, remote and difficult to access. Along a coastal strip some 200 kilometres (120 mi) long and 15–25 kilometres (10–15 mi) wide the terrain is austere with isolated mountains rising above barren lower ground where knolls of bare rock lie among lochans and peat bogs.