Author: Ralph Willard Imlay
Publisher:
ISBN:
Category : Geology
Languages : en
Pages : 144
Book Description
Paleogeographic changes in the United States during Jurassic time are revealed by the distribution, succession, and differentiation of molluscan faunas; by gross stratigraphic changes; by the position, extent, and duration of unconformities; and by comparisons with Jurassic data elsewhere in North America.