North American Continent-Ocean Transects Program / U.S. Geodynamics Committee, Board on Earth Sciences and Resources, Commission on Physical Sciences, Mathematics, and Resources, National Research Council.

Format:

Book

Contributor:

U.S. Geodynamics Committee.

Language:

English

Subjects (All):

Geology, Structural--North America.

Geology, Structural.

Continental margins--North America.

Continental margins.

Plate tectonics--North America.

Plate tectonics.

Earth (Planet)--Crust.

Earth (Planet).

Physical Description:

1 online resource (101 pages) : illustrations, maps

Edition:

1st ed.

Place of Publication:

Washington, D.C. : National Academy Press, 1989.

Language Note:

English

Summary:

This book discusses the results of the transects program, which involves compilations of maps and cross sections showing geological, geophysical, and geochemical data and interpretations along 23 transects from the continental craton to the oceanic lithosphere around North America. The book contains two sections, an overview and a set of recommendations for the program and synopses, findings, and problems associated with the 23 transects.

Contents:

North American Continent-Ocean Transects Program

Copyright

PREFACE

CONTENTS

FIGURES

1 Overview

INTRODUCTION

PROGRAM OBJECTIVES

PROGRAM ACHIEVEMENTS

NORTH AMERICAN CONTINENT

PRESENT AND PAST CONTINENT-OCEAN TRANSITION

North American Continental Zonation

Corridors

2 Major Scientific Problems

3 Needed Investigations

SYNTHESES

TOPICAL INVESTIGATIONS

PROCESSES OF CONTINENT-OCEAN TRANSITIONS

TECHNIQUES

4 New Developments

GLOBAL GEOSCIENCE TRANSECTS PROJECT

DIGITAL DATA

5 Major Topical Problems

GENERAL PROBLEMS

1. Processes of Modern Active Margins

2. Processes of Passive Margins

3. Tectonic Heredity

4. Tectonic Significance of Magmas and Magmatic Rocks

5. Identification and Processes of Terrane Boundaries

6. Kinematics of Orogenic Belts

7. Implications of High-Grade Metamorphic Rocks in Orogenic Belts

8. Dating of Events in Orogenic Belts

9. Foreland Deformation and Tectonic Coupling

10. Diagnostic Geophysical Expressions of Tectonic Units

11. Deep Continental Crustal Structure and Origin

12. Phanerozoic Changes in Proterozoic North America

SPECIFIC (PRIORITY) PROBLEMS

1. Underplating and Tectonic Attrition

2. Origin of the Moho and Lower Crust

3. Absolute Chronology of Tectonic Events

4. Strike-Slip Components of Terrane Displacement Paths

6 The 23 Transects: Synopses, Findings, and Problems

Transect A2 Kodiak to Kuskokwim, Alaska

Synopsis and Findings

Transect A3 Gulf of Alaska to the Arctic Ocean

Transect B1 Intermontane Belt (Skeena Mountains) to Insular Belt (Queen Charlotte Islands)

Transect B2 Juan De Fuca Plate to Alberta Plains

Problems

Transect B3 Juan De Fuca Spreading Ridge to Montana Thrust Belt.

Synopsis and Findings

Transect C1 Mendocino Triple Junction to North American Craton

Transect C2 Central California Offshore to Colorado Plateau

Transect C3 Pacific Abyssal Plain to Rio Grande Rift

Transects D1 to D4 Eastern Canada and North Atlantic Ocean

Transect D1: Northern Appalachians: (West Sheet) Grenville Province, Quebec, to Newfoundland

(East ...

Transect D2: Transform margin south of Grand Banks: Offshore eastern Canada

Transect D3: Rifted continental margin off Nova Scotia: Offshore eastern Canada

Transect D4: Rifted continental margin off Labrador

Transects D1 to D4: Problems

Transect E1 Adirondacks to Georges Bank

Transect E2 New York Appalachian Basin to Baltimore Canyon Trough

Transect E3 Pittsburgh to Baltimore Canyon Trough

Transect E4 Central Kentucky to the Carolina Trough

Transect E5 Cumberland Plateau to Blake Plateau

Transects F1 and F2 Gulf of Mexico Basin

Transect F1: Ouachita Orogen to Yucatan

Transect F2: Mississippi to Cuba

Transects F1 and F2: Problems

Transect G Somerset Island to Canada Basin (Arctic Ocean Region)

Transects H1 to H3 Pacific Basin Lithospheres to or Across Mainland Mexico

Transect H1: La Paz to Saltillo, Northwestern and Northern Mexico

Transect H2: Acapulco to Tuxpan across the Central Mexican Plateau.

Transect H3: Acapulco Trench to Gulf of Mexico across Southern Mexico

APPENDIX A 23 NORTH AMERICAN CONTINENT-OCEAN TRANSECTS: TITLES, AUTHORS, AND PUBLICATION PLAN

PUBLICATION PLAN BY THE GEOLOGICAL SOCIETY OF AMERICA (GSA)

APPENDIX B U.S. GEODYNAMICS COMMITTEE: REPORTORIAL TOPICS AND REPORTERS

USGC-ILP REPORTERS

LITHOSPHERE PROGRAM TOPICS-WORKING GROUP (WG) OR COORDINATING COMMITTEE (CC).

Notes:

Bibliographic Level Mode of Issuance: Monograph

ISBN:

9786610212767

9781280212765

1280212764

9780309582353

0309582350

9780585084640

0585084645

OCLC:

70772846