Featured Research

from universities, journals, and other organizations

Geologists have discovered a new drumlin field in Southern Patagonia, Chile

Date:
February 8, 2011
Source:
Universidad de Barcelona
Summary:
Geologists have discovered a new field of drumlins -- geological formations of glacial origin -- in the eastern sector of Lake Viedma, located in the Los Glaciares National Park in Southern Patagonia, Chile. This is one of the most important findings of a project aimed at charting the paleoclimate in regions of Patagonia and reconstructing the dynamics of glaciations from thousands of years ago.

The geologists Jorge Óscar Rabasa and David Serrat during the research project in Southern Patagonia.
Credit: Image courtesy of Universidad de Barcelona

A team of geologists has discovered a new field of drumlins- geological formations of glacial origin -- in the eastern sector of Lake Viedma, located in the Los Glaciares National Park in Southern Patagonia, Chile. This is one of the most important findings of a project aimed at charting the paleoclimate in regions of Patagonia and reconstructing the dynamics of glaciations from thousands of years ago.

Participants in the project include Professor David Serrat, from the UB's Department of Geodynamics and Geophysics, who co-authored the first description of the drumlin fields on Gable Island (1987) in the Beagle Channel, a tectonic basin that connects the Pacific and Atlantic Oceans in sub-Antarctic latitudes.

The team also includes Jorge Óscar Rabasa and Federico Ponce, from the Southern Centre for Scientific Research of the National Scientific and Technical Research Council of Argentina (CADIC-CONICET), and Óscar Martínez, from the National University of Patagonia. The project was carried out under a long-standing collaborative framework between the UB and the CADIC-CONICET, with the participation of the National University of Patagonia.

Drumlins (from the Gaelic droimnín, meaning 'little ridge') are small, oval hillocks formed below the ice by the movement of glaciers. Southern Patagonia is one of the key locations in the southern hemisphere for the study of these geoforms, which provide valuable information for paleoclimactic research. The team of experts located the new drumlin field -- which also contains examples flutes and megaflutes, formations associated with the presence of drumlins -- in the eastern sector of Lake Viedma, a relatively unstudied area until now. The project describes the different components of these subglacial geoforms and identifies three sectors -- north, central and south -- with distinct characteristics. According to the results, the area contains a minimum of 19 and 199 flutes and megaflutes, with some of the latter formations measuring over four kilometres in length. Evidence suggests that these geoforms were created at the base of the terminal lobe of the Viedma Glacier when it retreated from the valley to which it was confined.


Story Source:

The above story is based on materials provided by Universidad de Barcelona. Note: Materials may be edited for content and length.


Cite This Page:

Universidad de Barcelona. "Geologists have discovered a new drumlin field in Southern Patagonia, Chile." ScienceDaily. ScienceDaily, 8 February 2011. <www.sciencedaily.com/releases/2011/02/110208091700.htm>.
Universidad de Barcelona. (2011, February 8). Geologists have discovered a new drumlin field in Southern Patagonia, Chile. ScienceDaily. Retrieved July 23, 2014 from www.sciencedaily.com/releases/2011/02/110208091700.htm
Universidad de Barcelona. "Geologists have discovered a new drumlin field in Southern Patagonia, Chile." ScienceDaily. www.sciencedaily.com/releases/2011/02/110208091700.htm (accessed July 23, 2014).

Share This




More Earth & Climate News

Wednesday, July 23, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Observation Boat to Protect Cetaceans During Ship Transfer

Observation Boat to Protect Cetaceans During Ship Transfer

AFP (July 22, 2014) — As part of the 14-ship convoy that will accompany the Costa Concordia from the port of Giglio to the port of Genoa, there will be a boat carrying experts to look out for dolphins and whales from crossing the path of the Concordia. Duration: 01:02 Video provided by AFP
Powered by NewsLook.com
New Orleans Plans to Recycle Cigarette Butts

New Orleans Plans to Recycle Cigarette Butts

AP (July 21, 2014) — New Orleans is the first U.S. city to participate in a large-scale recycling effort for cigarette butts. The city is rolling out dozens of containers for smokers to use when they discard their butts. (July 21) Video provided by AP
Powered by NewsLook.com
Shark Sightings a Big Catch for Cape Tourism

Shark Sightings a Big Catch for Cape Tourism

AP (July 21, 2014) — A rise in shark sightings along the shores of Chatham, Massachusetts is driving a surge of eager vacationers to the beach town looking to catch a glimpse of a great white. (July 21) Video provided by AP
Powered by NewsLook.com
Spectacular Lightning Storm Hits London

Spectacular Lightning Storm Hits London

AFP (July 19, 2014) — A spectaCular lightning storm struck the UK overnight Friday. Images of lightning strikes over the Shard and Tower Bridge in central London. Duration: 00:23 Video provided by AFP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins