Skip to Main Content
Book Chapter

Phanerozoic tectonic evolution of Mexico

By
Fernando Ortega-Gutiérrez
Fernando Ortega-Gutiérrez
Instituto de Geología, Universidad Nacional Autónoma de México, 20, DF, Mexico
Search for other works by this author on:
Richard L. Sedlock
Richard L. Sedlock
Department of Earth Sciences, Memorial University of Newfoundland, St John’s, Newfoundland A IB 3X5, Canada
Search for other works by this author on:
Robert C. Speed
Robert C. Speed
Department of Geological Sciences, Northwestern University, Evanston, Illinois 60208
Search for other works by this author on:
Published:
January 01, 1994

Abstract

We present a tectonic evolution of Mexico over the past 600 m.y., with focus on the position of southern margin of Proterozoic North America in Mexico, the Phanerozoic events that shaped this margin, and the accretion of terranes that built Mexico out from that margin to its present configuration.

The evolution of Mexico is a peculiar and difficult problem in tectonics. Whereas the kinematic history of the region of Mexico, for example, the end of Proterozoic continental breakup, the collision of North and South America in the late Paleozoic, the drifting apart of those two continents in the Mesozoic, and the motions of plates in the Pacific basin relative to North America in Cretaceous and Cenozoic time, is reasonably well known, the kinematics of terranes now in the region is poorly understood. In large part, this disparity is due to the extraordinary extent and volume of Cenozoic volcanism. Although such volcanism informs us about Cenozoic convergence, it cautions that the crust of Mexico has probably undergone major modification in Cenozoic time. Moreover, the volcanic cover limits greatly the direct access to older rocks and structures necessary to develop the story of an evolution that is well resolved in space and time. A tectonic synthesis of Mexico thus requires more assumptions than for most mountainous regions.

Our model of tectonic evolution of Mexico attempts to satisfy both far-field and sparse near-field kinematic histories and existing geologic and geophysical data. This chapter is a companion to an in-depth synthesis of data, identification

You do not currently have access to this article.

Figures & Tables

Contents

DNAG, Continent-Ocean Transect Series

Phanerozoic Evolution of North American Continent-Ocean Transitions

Robert C. Speed
Robert C. Speed
Department of Geological Sciences Northwestern University Evanston, Illinois 60208
Search for other works by this author on:
Geological Society of America
Volume
Summary volume
ISBN electronic:
9780813754437
Publication date:
January 01, 1994

GeoRef

References

Related

Citing Books via

Close Modal
This Feature Is Available To Subscribers Only

Sign In or Create an Account

Close Modal
Close Modal