The Manson Impact Structure, Iowa: Anatomy of an Impact Crater 1-1-001-322-4330-322 spanning the time from the

spanning the time from the initial colonization of plants on land to an ice-age mammoth-bearing wetland

Molina Garza

Reconnaissance Geology of the State of Baja California

the authors examine this volcanism and the geological history of the western Caribbean and the Lower Nicaraguan Rise

Editors: R

The Manson Impact Structure, Iowa: Anatomy of an Impact Crater 1-1-001-322-4330-322 spanning the time from theEditors: Christian Koeberl and Raymond R. Anderson Buy the e book (not available in print) A comprehensive description of research on the 38 km diameter Manson impact structure in north central Iowa. This structure, one of about 20 confirmed impact structures in the U. S., was initially suspected as one factor in the K T boundary drama. The possible association with the K T boundary led to an increase in research on the Manson structure in the 1980s.