Premium
Origin of permafrost lake deposits in the Central Andes
Author(s) -
Gorbunov A. P.
Publication year - 1993
Publication title -
permafrost and periglacial processes
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.867
H-Index - 76
eISSN - 1099-1530
pISSN - 1045-6740
DOI - 10.1002/ppp.3430040406
Subject(s) - permafrost , thermokarst , geology , pleistocene , holocene , elevation (ballistics) , geomorphology , quaternary , paleontology , geochemistry , archaeology , oceanography , geography , geometry , mathematics
Perennially frozen lacustrine deposits in the Bolivian Altiplano are discussed. They are situated between 21°38′S and 23°13′S at an elevation of 4117–4730 m ASL. It is hypothesized that these ice‐rich lacustrine deposits formed as the result of subaquatic freezing of sediments in the Late Pleistocene to Early Holocene. The permafrost bodies are represented today by flat‐topped ridges and mounds which are the remnants of the original lake plains destroyed by thermokarst processes.