Reconstructing the Footprint of an Ice Sheet on the Antarctic Continental Margin

We have another marine scientist visiting us for our next event on Monday, April 7th, 2014. Dr. Sandra Passchier from Montclair State University is a Distinguished Lecturer in the International Ocean Discovery Program‘s 2013-14 program. She will speak about research on the Antarctic ice sheet:

Throughout at least the past 34 million years the Antarctic ice sheet played a major role in global sea level variations. With its white reflective surface it also controlled the heat balance, wind patterns, and annual sea ice formation in the Southern Ocean. The exact mechanisms involving Antarctic ice sheet variability and heat transport in the global climate system, however, have been poorly understood due to a lack of data from the inaccessible Polar Regions. In recent years, boreholes within sediment archives on the Antarctic continental margin have begun to shed light on the conditions at the onset of Antarctic glaciation and the variable high-latitude climate of the Late Cenozoic icehouse period. By drilling continental shelf to rise transects the critical role of interactions between the ice sheet and the ocean is investigated in areas where the East Antarctic ice sheet is marine-grounded in deep subglacial basins.

Dr. Passchier’s research focuses on reconstructing the variability in the extent of the Antarctic ice sheets by analyzing the sedimentology, detrital mineralogy, and inorganic chemical composition of continental margin sediments. She participated on Ocean Drilling Program Leg 188 and Integrated Ocean Drilling Program Expedition 318, along with three other drilling projects targeting sediment archives on Antarctica’s continental margin.

Here are the details of the April event:

When: 7 April 2014, 7:00-8:30 PMDinner will be served from 6:00PM.

Where:  Peeve’s Public House
, 1243 Fulton Mall, Fresno, CA 93721

Contact:  559-278-2460 (cafe inquiries) / 559-573-5735 (Pub’s number)

Here’s the full poster for this event – please feel free to download, print, and share with your friends and family:

Dive into the ocean to discover and learn from deep sea Foraminifera, on Jan 7, 2013

Happy New Year, fellow Cafénistas!

Join us on January 7th for an expedition into the deep seas! Dr. Mathieu Richaud, of the Department of Earth and Environmental Sciences at CSU—Fresno will tell us about research into the bottom of the sea where oceanographers take core sediment samples and bring up the myriad and endlessly fascinating little microorganisms called the Foraminifera. What can these deep sea sediment samples and the tiny Foraminifers buried within them tell us about such closer-to-surface phenomena as Sea Level Change, El Niño, and Ocean Acidification? A lot, it seems, as Dr. Richaud will show us in his presentation.

We will continue to meet at the Cafe Via, near Herndon and Blackstone, where dinner will be served from 6:00 PM onwards, with the talk to begin at 7:00 PM.

A poster with full details is available below, for download and sharing. Please join us, and bring a friend or two along!