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Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis W. Alvarez; Walter Alvarez; Frank Asaro; Helen V. Michel Science, New Series, Vol. 208, No. 4448. (Jun. 6, 1980), pp. 1095-1108. Stable URL: http://links.jstor.org/sici?sici=0036-8075%2819800606%293%3A208%3A4448%3C1095%3AECFTCE%3E2.0.CO%3B2-B Science is currently published by American Association for the Advancement of Science. Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available at http://www.jstor.org/about/terms.html. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtained prior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content in the JSTOR archive only for your personal, non-commercial use. Please contact the publisher regarding any further use of this work. Publisher contact information may be obtained at http://www.jstor.org/journals/aaas.html. Each copy of any part of a JSTOR transmission must contain the same copyright notice that appears on the screen or printed page of such transmission. JSTOR is an independent not-for-profit organization dedicated to and preserving a digital archive of scholarly journals. For more information regarding JSTOR, please contact [email protected]. http://www.jstor.org Tue Feb 6 11:14:45 2007

Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary

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Page 1: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary

Extraterrestrial Cause for the Cretaceous-Tertiary Extinction

Luis W. Alvarez; Walter Alvarez; Frank Asaro; Helen V. Michel

Science, New Series, Vol. 208, No. 4448. (Jun. 6, 1980), pp. 1095-1108.

Stable URL:

http://links.jstor.org/sici?sici=0036-8075%2819800606%293%3A208%3A4448%3C1095%3AECFTCE%3E2.0.CO%3B2-B

Science is currently published by American Association for the Advancement of Science.

Your use of the JSTOR archive indicates your acceptance of JSTOR's Terms and Conditions of Use, available athttp://www.jstor.org/about/terms.html. JSTOR's Terms and Conditions of Use provides, in part, that unless you have obtainedprior permission, you may not download an entire issue of a journal or multiple copies of articles, and you may use content inthe JSTOR archive only for your personal, non-commercial use.

Please contact the publisher regarding any further use of this work. Publisher contact information may be obtained athttp://www.jstor.org/journals/aaas.html.

Each copy of any part of a JSTOR transmission must contain the same copyright notice that appears on the screen or printedpage of such transmission.

JSTOR is an independent not-for-profit organization dedicated to and preserving a digital archive of scholarly journals. Formore information regarding JSTOR, please contact [email protected].

http://www.jstor.orgTue Feb 6 11:14:45 2007

Page 2: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 3: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 4: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 5: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 6: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 7: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 8: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 9: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 10: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 11: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 12: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 13: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 14: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary
Page 15: Extraterrestrial Cause for the Cretaceous-Tertiary Extinction Luis …pds6.egloos.com/pds/200711/30/45/Extraterrestrial_cause... · 2007-11-30 · Extraterrestrial Cause for the Cretaceous-Tertiary