Gerta Keller

Gerta Keller

Gerta Keller (born 1945) is a paleontologist who contests the Chicxulub crater as the location of the meteorite impact, postulated as the cause of the Cretaceous-Tertiary extinction event 65 mya by the Alvarez hypothesis ref|sciencedaily. Keller is currently a professor of Geosciences, at Princeton University ref|sciencedaily.

Keller earned a doctorate in paleontology and geology from Stanford University in 1978ref|NYT, and then worked for the US Geological Survey and Stanford. She came to Princeton University in 1984 and after a few years started studying the K-T boundaryref|princetonweekly, the geological signature of the Cretaceous-Tertiary extinction event.

Bibliography

* Keller, G. & MacLeod, N. (Eds), (1996). "Cretaceous-Tertiary Mass Extinctions : Biotic and Environmental Changes". W. W. Norton & Co. (ISBN 0-393-96657-7)

References

* [http://www.sciencedaily.com/releases/2003/09/030926065930.htm Sciencedaily.com accessed May 6, 2006]
* [http://geoweb.princeton.edu/people/faculty/keller/ Keller's faculty page from princeton.edu]
* "Public Lives: Where Dinosaurs Roamed, She Throws Stones" "The New York Times", December 17, 2003.
* [http://www.princeton.edu/pr/pwb/03/0922/ "Dinosaur dust-up", "Princeton Weekly Bulletin", September 22, 2003]
* [http://www.geolsoc.org.uk/gsl/geoscientist/geonews/page2837.html] "Chicx comes home to roost", "Geoscientist Online", June 18, 2007
* [http://www.geolsoc.org.uk/gsl/null/lang/en/page2519.html] "Impact Factor", "Geoscientist Online", June 18, 2007


Wikimedia Foundation. 2010.

Игры ⚽ Поможем решить контрольную работу

Look at other dictionaries:

  • Gerta Keller — (* 1945) es una paleontóloga estadounidense que estudia el cráter de Chicxulub como presunta localización del impacto del meteorito que provocó la extinción masiva del Cretácico Terciario (extinción de los dinosaurios) por la hipótesis de Álvarez …   Wikipedia Español

  • Keller — is the German word for cellar . It is a very rare first name but a somewhat common surname in several languages.Place namesKeller is the name of several places in the United States of America:*Keller, Georgia *Keller, Texas *Keller, Virginia… …   Wikipedia

  • Gerta von Stark — Von Walter Kalot geschaffene Büste von Gertrud von Le Fort Gedenkbriefmarke von 1975 Gertrud von Le Fort ( …   Deutsch Wikipedia

  • Chicxulub crater — Imaging from NASA s Shuttle Radar Topography Mission STS 99 reveals part of the 180 kilometer (112 mi) diameter ring of the crater; clustered around the crater s trough are numerous sinkholes, suggesting a prehistoric oceanic basin in… …   Wikipedia

  • Cratère de Chicxulub — Image numérique par satellite du cratère de Chicxulub. Localisation Coordonnées …   Wikipédia en Français

  • Extinción masiva del Cretácico-Terciario — Intensidad de la extinciones a lo largo de la historia de la vida. La extinción del Cretácico está representada por «Final Cr» …   Wikipedia Español

  • Klaus Hönninger — Nombre Horst Klaus Hönninger Mitrani …   Wikipedia Español

  • Chixulub — Der Chicxulub Krater nach Messungen der Schwereanomalie …   Deutsch Wikipedia

  • K–T boundary — The K T boundary is a geological signature, usually a thin band, dated to 65.5 ± 0.3 (mya). [ [http://www.stratigraphy.org/cheu.pdf International commission for Stratigraphy] ] K is the traditional abbreviation for the Cretaceous Period, and T is …   Wikipedia

  • Chicxulub-Krater — Der Chicxulub Krater nach Messungen der Schwereanomalie 21.297222222222 89.594444444444 Koordinaten …   Deutsch Wikipedia

Share the article and excerpts

Direct link
https://en-academic.com/dic.nsf/enwiki/2486032 Do a right-click on the link above
and select “Copy Link”