Spring 2007 Public Lectures



Sunday, March 18

Click to watch lecture

Click on the image above to watch a video of this lecture.

Suzanne Carbotte, Ph.D.

Doherty Research Scientist

Lamont-Doherty Earth Observatory

John Diebold, Ph.D.

Senior Research Scientist

Lamont-Doherty Earth Observatory

G. Michael Purdy, Ph.D.


Lamont-Doherty Earth Observatory

A New Era in Ocean Exploration:


Introducing Research Vessel Marcus G. Langseth

Oceans cover about three quarters of the Earth's surface.  Although much has been learned about the seafloor and sub-floor in recent decades, much remains to be explored.  The panel will describe a wide range of ship operations and scientific investigations of Lamont's newest ocean-going research vessel, the 235-foot Marcus G. Langseth.


This lecture is sponsored by the Lamont-Doherty Alumni Association.


Sunday, March 25

Lava flow

Dallas Abbott, Ph.D.

Adjunct Research Scientist
Lamont-Doherty Earth Observatory

Cosmic Impact!  Evidence from Madagascar

A tsunami wave as high as a 30-story building.  Ocean water vaporized, seafloor rock and shells melted, and unprecedented torrential rains.  What could cause such an event? Did it ever actually happen?  Giant sand dunes in Madagascar are revealing strong clues.  Hear exciting new evidence for a massive cosmic impact in the Southwest Indian Ocean during the Middle Ages. 


Sunday, April 15

Earthquake ruins

Click on the image above to watch a video of this lecture.

Roger Buck, Ph.D.

Doherty Senior Research Scientist

Lamont-Doherty Earth Observatory

From Satellites to Camels:

In East Africa Studying the Biggest Magmatic Rift Event Ever Seen

In September 2005 a 40-mile long crack opened in the Earth.  Satellite images showed that this was the largest magmatic rifting event ever seen.  Is the African continent splitting at the seams?  Roger Buck will describe the science behind the cracking event and similar ones in Iceland, and will share his experiences traveling and working in this remote and dangerous desert area at the sourthern end of the Red Sea. 


Sunday, April 22

Hurricane Katrina Aftermath

Meredith Kelly, Ph.D.

Post Doctoral Research Fellow
Lamont-Doherty Earth Observatory


Meredith Nettles, Ph.D.

Post Doctoral Research Scientist
Lamont-Doherty Earth Observatory

Climate Change in Greenland:

Perspectives From the Present and Past

Determining what caused significant and abrupt climate changes in the past is essential for understanding current and future climate change.  The extremely rapid response of earth systems to global warming continues to surprise researchers, particularly in the Arctic.  This lecture will discuss the stability of the Greenland Ice Sheet because of its potential incluence on global sea level and ocean circulation.  Meredith Kelly will discuss past climate changes as recorded by Greenland glaciers.  Meredith Nettles will discuss the effects of present global warming on the Greenland Ice Sheet. 


61 Route 9W, Palisades, NY 10964
Monell Building Auditorium

All lectures 3:00 p.m. to 4:00 p.m.

Admission is $5.00 at the door  - Light reception to follow  - Wheelchair-accessible

Due to space limitations, registration is recommended

For registration and more information, contact: (845) 365-8998 or events@ldeo.columbia.edu