Emerged Holocene South American Shorelines

Science  13 Sep 1963:
Vol. 141, Issue 3585, pp. 1044-1045
DOI: 10.1126/science.141.3585.1044


A pelecypod from the Salina beds of northern Peru at elevation 4.5 m ( 15 ft) shows a date of about 3000 years B. P., while a gastropod from elevation 22.5 m (75 ft) was older than 30,000 years B. P. A pelecypod from the island of Tierrabomba, near Cartagena, Colombia, at elevation 2.7 m ( 9 ft) gave a date of about 2850 years, while a pelecypod from Comodoro Rividavia, Argentina, at elevation 9 m ( 30 ft) gave a date of 5350 years B. P.