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LAGUNA GUATAVITA: NOT METEORITIC, PROBABLE SALT COLLAPSE CRATER
Author(s) -
Dietz Robert S.,
McHone John F.
Publication year - 1972
Publication title -
meteoritics
Language(s) - English
Resource type - Journals
eISSN - 1945-5100
pISSN - 0026-1114
DOI - 10.1111/j.1945-5100.1972.tb00444.x
Subject(s) - impact crater , geology , meteorite , anticline , metamorphic rock , geochemistry , debris , impact structure , shock metamorphism , tectonics , geomorphology , paleontology , astrobiology , oceanography , physics
Laguna Guatavita (Colombia), a crater 700 m across and 125 m deep containing a central lake, appears not to be a meteorite crater as widely supposed. The tectonic style is not that of an impact site and there is no raised rim or ejected debris. We could find no impactite, shock metamorphic effects or shock fractures (shatter cones). Most likely it is a collapsed crater caused by the solution and withdrawal of salt from an underlying anticline