Glaciers Charles Lyell

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lateral moraine on glacier joining gorner glacier, zermatt, switzerland.


in principles of geology (first edition, vol. 3, ch. 2, 1833) lyell proposed icebergs means of transport erratics. during periods of global warming, ice breaks off poles , floats across submerged continents, carrying debris it, conjectured. when iceberg melts, rains down sediments upon land. because theory account presence of diluvium, word drift became preferred term loose, unsorted material, today called till. furthermore, lyell believed accumulation of fine angular particles covering of world (today called loess) deposit settled mountain flood water. today of lyell s mechanisms geological processes have been disproven, though many have stood test of time. observational methods , general analytical framework remain in use today foundational principles in geology.








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