[Gutenberg 52838] • Creation of the Teton Landscape: The Geologic Story of Grand Teton National Park by Love, J.D. -- Read -- Imperial Library of Trantor

Index

CREATION OF THE TETON LANDSCAPE The Geologic Story of Grand Teton National Park CONTENTS FOREWORD THE STORY BEGINS

First questions, brief answers An extraordinary story An astronaut’s view A pilot’s view A motorist’s view

View north.— View west.— View south.—

A mountaineer’s view

CARVING THE RUGGED PEAKS

Steep mountain slopes—the perpetual battleground Rock disintegration and gravitational movement Running water cuts and carries Glaciers scour and transport Effects on Jackson Hole

MOUNTAIN UPLIFT

Kinds of mountains Anatomy of faults Time and rate of uplift Why are mountains here? The restless land

ENORMOUS TIME AND DYNAMIC EARTH

Framework of time Rocks and relative age Fossils and geologic time Radioactive clocks The yardstick of geologic time

PRECAMBRIAN ROCKS—THE CORE OF THE TETONS

Ancient gneisses and schists Granite and pegmatite Black dikes Quartzite A backward glance The close of the Precambrian—end of the beginning

THE PALEOZOIC ERA—TIME OF LONG-VANISHED SEAS AND THE DEVELOPMENT OF LIFE

The Paleozoic sequence Alaska Basin—site of an outstanding rock and fossil record Advance and retreat of Cambrian seas: an example Younger Paleozoic formations

THE MESOZOIC—ERA OF TRANSITION

Colorful first Mesozoic strata Drab Cretaceous strata Birth of the Rocky Mountains

TERTIARY—TIME OF MAMMALS, MOUNTAINS, LAKES, AND VOLCANOES

Rise and burial of mountains The First Big Lake Development of mammals Volcanoes

QUATERNARY—TIME OF ICE, MORE LAKES, AND CONTINUED CRUSTAL DISTURBANCE

Hoback normal fault Volcanic activity Preglacial lakes The Ice Age Modern glaciers

THE PRESENT AND THE FUTURE APPENDIX

Acknowledgements Selected references—if you wish to read further About the authors

Index of selected terms and features The GRAND TETON NATURAL HISTORY ASSOCIATION Transcriber’s Notes