Impact - The Threat of Comets and Asteroids.pdf - Geology and Astronomy - bittercharlie

Impact!

The Threat of

Comets and Asteroids

GERRIT L. VERSCHUUR

OXFORD UNIVERSITY PRESS

New York Oxford

Oxford University Press

Oxford New York

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First published by Oxford University Press, Inc., 1996

First published as an Oxford University Press paperback, 1997

Oxford is a registered trademark of Oxford University Press

stored in a retrieval system, or transmitted, in any form or by any means,

electronic, mechanical, photocopying, recording, or otherwise,

without the prior permission of Oxford University Press.

Library of Congress Cataloging-in-Publication Data

Verschuur, Gerrit L., 1937-

Impact!: the threat of comets and asteroids /

Gerrit L. Verschuur.

p. cm. Includes bibliographical references and index.

ISBN 0-19-510105-7

ISBN 0-19-511919-3 (Pbk.)

1. Comets. 2. Asteroids. 3. Impact. 4. Earth. 5. Evolution

(Biology) I. Title.

QB721.V48 1996

551.3'97—dc20 95-45030

135798642

Printed in the United States of America

on acid-free paper

Impact - The Threat of Comets and Asteroids.pdf