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Unconformities (Geology)

 Subject
Subject Source: Library of Congress Subject Headings
Scope Note: Created For = NAHSTE

Found in 4 Collections and/or Records:

Letter to Robert Boog-Watson from Sir Archibald Geikie, 22 October 1862

 Item
Identifier: Coll-74/11/4/1
Scope and Contents Letter to Robert Boog-Watson from Sir Archibald Geikie. Geikie discusses Boog-Watson's geological mapping of the south end of Arran and compares it with his own mapping of the Isle of Bute, the Cumbrae Islands, Renfrewshire and Ayrshire. He discusses Scotland's old red sandstone unconformity. He extends an invitation to join him in mapping Tinto Hill as soon as his expected working visit from Lennox is over.
Dates: 22 October 1862

Letter to Robert Boog-Watson from Sir Archibald Geikie, 20 November 1862

 Item
Identifier: Coll-74/11/4/2
Scope and Contents Letter to Robert Boog-Watson from Sir Archibald Geikie thanking him for his gift of figs and telling him that his diet is currently restricted due to ill health. He reports on a difficult visit from Sir Andrew Crombie Ramsay. He discusses the geological unconformity of the south end of the Isle of Bute and includes a sketch cross-section.
Dates: 20 November 1862

Letter to Sir Archibald Geikie from Capt Clarence Edward Dutton, 05 May 1883

 Item
Identifier: Coll-74/11/5/14
Scope and Contents Letter to Sir Archibald Geikie from Capt Clarence Edward Dutton discussing the fossiliferous Upper Cambrian metamorphosed sandstone shales found at Lake Superior and the Grand Canyon. At Lake Superior these beds overlie 1400 feet of unfossiliferous sandstone and shale, interspersed with layers of copper bearing metamorphosed volcanic ash. These are the same as the Huronian metamorphic beds at Lake Huron which are possibly of the Lower Cambrian age due to an unconformity (as identified by Alfred...
Dates: 05 May 1883

Papers of Sir Archibald Geikie

 Fonds
Identifier: Coll-74
Scope and Contents The papers Sir Archibald Geikie consist of: personal, organisational and scientific correspondence geological notebooks with field sketches and water-colours reprints of his work miscellaneous lecture notes student's lecture notes lecture notes and printed maps relating to a visit to Boston proofs for...
Dates: 1851-1921