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Glacial Drift in the Eastern Argentine Andes between Latitude 41° 10' S. and Latitude 43° 10' S

1969; Geological Society of America; Volume: 80; Issue: 6 Linguagem: Inglês

10.1130/0016-7606(1969)80[1043

1943-2674

Richard Foster Flint, Francisco Fidalgo,

Evolution and Paleontology Studies

Research Article| June 01, 1969 Glacial Drift in the Eastern Argentine Andes between Latitude 41° 10' S. and Latitude 43° 10' S RICHARD FOSTER FLINT; RICHARD FOSTER FLINT Dept. Geology and Geophysics, Yale University, New Haven, Connecticut Search for other works by this author on: GSW Google Scholar FRANCISCO FIDALGO FRANCISCO FIDALGO Instituto Nacional de Geologia y Mineria, Buenos Aires, Argentina Search for other works by this author on: GSW Google Scholar GSA Bulletin (1969) 80 (6): 1043–1052. https://doi.org/10.1130/0016-7606(1969)80[1043:GDITEA]2.0.CO;2 Article history received: 17 Jul 1968 rev-recd: 03 Oct 1968 first online: 02 Mar 2017 Cite View This Citation Add to Citation Manager Share Icon Share Twitter LinkedIn Tools Icon Tools Get Permissions Search Site Citation RICHARD FOSTER FLINT, FRANCISCO FIDALGO; Glacial Drift in the Eastern Argentine Andes between Latitude 41° 10' S. and Latitude 43° 10' S. GSA Bulletin 1969;; 80 (6): 1043–1052. doi: https://doi.org/10.1130/0016-7606(1969)80[1043:GDITEA]2.0.CO;2 Download citation file: Ris (Zotero) Refmanager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex toolbar search Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentBy SocietyGSA Bulletin Search Advanced Search Abstract The segment of the Argentine Andes between lat 41°10' S. and lat 43°10' S. was formerly occupied by a thick mountain ice sheet, which in places spread as far east as long 71° W. The eastern limit of glaciation determined by us is broadly similar to that fixed by Caldenius in 1932, although it differs in detail.We have separated the glacial drift in the area into three units, defined on a semiquantitative basis of degree of weathering of granitic clasts. This three-fold sequence contrasts with a sequenceof four units proposed by Caldenius. The intensity of weathering of our two older units is considerable. It seems to us too great to be compatible with the dates implied by Caldenius' correlation with drift, in Sweden, dated according to the time scale of De Geer. However, the weathering displayed by the drift in the Argentine area could reasonably have developed within a time interval no longer than that generally ascribed to the Wisconsin Age (in the wide sense) in North America, although the oldest drift could conceivably be pre-Wisconsin. This content is PDF only. Please click on the PDF icon to access. First Page Preview Close Modal You do not have access to this content, please speak to your institutional administrator if you feel you should have access.