Torridonn.
/ˈtɒrɪdən/ Geology.
Used attributively to designate Torridonian rocks (see Torridonian adj.), which are well exposed at Loch Torridon.
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the world > the earth > structure of the earth > age or period > stratigraphic units > [adjective] > pre-Cambrian > specific
Huronian1854
Lewisian1859
Archaean1872
Torridon1873
Keweenawan1876
Pebidian1877
Malvernian1879
Longmyndian1887
Torridonian1893
Moinian1938
Laxfordian1950
1873 Q. Jrnl. Geol. Soc. 29 334 The lowest conglomerate bed of the Torridon sandstone is seen in fine section in a cliff north-west of Brochel castle.
1893 A. Geikie Text-bk. Geol. (ed. 3) 706 The Torridon sandstone has been shorn from the mass of these formations below ground.
1896 J. W. Judd Student's Lyell xxviii. 435/1 The Torridon Sandstone or Torridonian.
1930 B. N. Peach & J. Horne Chapters Geol. Scotl. iii. 83 The various groups of Torridon Sandstone are not equally developed along the belt from Cape Wrath to Skye.
1963 D. W. Humphries & E. E. Humphries tr. H. Termier & G. Termier Erosion & Sedimentation i. 7 In this field the studies of British scientists..extend over rocks of all ages back to the Torridon Sandstone (Precambrian).
This entry has not yet been fully updated (first published 1986; most recently modified version published online September 2018).
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n.1873