Navigation Links
New Antarctic geological timeline aids future sea-level predictions
Date:1/16/2013

e experienced significant thinning (melting), flow acceleration and rapid landward retreat of their grounding lines, with that of Pine Island Glacier having retreated up to 25 km. It's possible that the grounding lines may retreat even further inland over coming decades. Our study has revealed that episodes of fast glacier retreat similar to that observed over recent decades can only have occurred very rarely during the previous 10,000 years."

The investigation was carried out in 2010 during an expedition on-board the German research ship RV Polarstern. The science team used gravity corers up to ten metres long to extract mud from the sea floor of the continental shelf in the Amundsen Sea.

Co-author Dr Gerhard Kuhn from AWI explains,

"It was important to get a better understanding of the rapid retreat that we see in the satellite data. As coring targets we selected three relatively shallow undersea ridges that lie within 110 kilometres of the current grounding line and flank a deep glacial valley which was carved into the sea bed by the glaciers during past ice sheet advances. These locations gave us the best chance to collect the tiny skeletons and shells of animals made of calcium carbonate. Such 'calcareous' microfossils are critical for using the radiocarbon technique to determine the age of the sediments, but they are normally extremely rare on the Antarctic continental shelf."

Co-author Dr James Smith, also from BAS, adds,

"First we determined the distance between the core locations and the modern position of the grounding line. Then by dating the type of sediment material deposited at a core site in the open ocean (after the grounding line had moved further landward), we were able to calculate the average rate of glacier retreat over time."

This new research will be used to improve the accuracy of computer models that are essential to predict future ice loss in the Amundsen Sea sector of the West Antarc
'/>"/>

Contact: Paul Seagrove
psea@bas.ac.uk
44-012-232-21414
British Antarctic Survey
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Finding life in the volcanic systems of the Antarctic Polar Front
2. Ancient microbes found living beneath the icy surface of Antarctic lake
3. UIC scientists find ancient microbes in salty, ice-sealed Antarctic lake
4. Hearty organisms discovered in bitter-cold Antarctic brine
5. British team set to embark on ambitious Antarctic mission to penetrate and sample ancient buried lake
6. British team set to embark on ambitious Antarctic mission to penetrate & sample ancient buried lake
7. EARTH: Antarctic trees surprise scientists
8. Professors Antarctica research shows potential king crab invasion
9. Blue Ribbon Panel unveils findings on logistical improvements to support Antarctic science
10. The challenges facing the vulnerable Antarctic
11. GSA Bulletin presents studies in Antarctica, Italy, Mexico, Algeria, Mongolia, and more
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/21/2014)... -- C-Labs LLC, a leading provider of remote and ... announced the appointment of John Traynor to ... advisor to the firm, Mr. Traynor will now oversee ... out of the C-Labs office in Redmond, ... , Chief Executive Officer. Photo - ...
(Date:11/18/2014)... NEW YORK , Nov. 18, 2014 /PRNewswire/ ... iris-based identity authentication solutions, and MorphoTrust USA ... solutions and services, today announced a strategic partnership ... across enterprise, motor vehicle administration (MVA), airport screening ... leader in identity-related solutions, MorphoTrust serves consumers through ...
(Date:11/7/2014)... professor, biomedical engineering, in the Grove School of ... have identified a molecule that could lead to ... forms of breast cancer. , Triple negative breast ... to aggressive proliferation and metastasis and a lack ... discovered the overexpression of intercellular adhesion molecule-1 (ICAM-1) ...
Breaking Biology News(10 mins):C-Labs Names Former Microsoft and Bsquare Executive as Chief Operating Officer 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 2EyeLock, MorphoTrust Form Strategic Partnership to Pursue Commercial Enterprise Deployments 3
... researchers think their discovery of the enzyme involved in ... lead not only to better pest control, but also ... aircraft and armor. , After a beetle first molts, ... out and forms a hard, stiff exoskeleton. Since the ...
... antibody engineered by scientists at The University of Texas ... the use of antibiotics and other more expensive antibodies. ... both anthrax bacteria and its deadly toxins in animal ... first successful treatment for late-stage anthrax infection, even for ...
... at Stanford University have created a larger-than-normal DNA molecule ... The findings, reported in the Oct. 25 online edition ... (PNAS), may reveal new insights into how genetic mutations-tiny ... made in the laboratory of Eric Kool, a professor ...
Cached Biology News:K-State professors discover enzyme responsible for creation of a beetle's hard shell 2New antibody shows promise as cure for anthrax 2New antibody shows promise as cure for anthrax 3DNA size a crucial factor in genetic mutations, study finds 2DNA size a crucial factor in genetic mutations, study finds 3
(Date:11/21/2014)... November 20, 2014 BlueInGreen, LLC ... Solutions, LLC (Pinnacle), and PCI, Inc., leading suppliers ... they have been selected to provide a new ... Arkansas Paul R. Noland Wastewater Treatment. The ... HyDOZ® gas dissolution technology, Pinnacle Ozone’s ...
(Date:11/21/2014)... , Nov. 20, 2014 Polaris Group ... dosed in its Phase 1 trial of ADI-PEG ... the treatment of malignant pleural mesothelioma (MPM) and ... conducting clinical trials on ADI-PEG 20, both as ... the treatment of several other indications, including breast ...
(Date:11/18/2014)... BRUNO, Calif. , Nov. 18, 2014 ... a platinum sponsor of the 10th Annual World Stem Cell ... regenerative medicine stakeholders. The 2014 World Stem Cell Summit will ... San Antonio, Texas . The ... discovery and development of lifesaving cures and therapies, convening the ...
(Date:11/18/2014)... 2014 Athena Signature Series: Turning Cancer ‘Off’ ... Emerson, a professor in the Regulatory Biology Laboratory at the ... discovery points to an “off switch” for drug resistance in ... her local research is making a global impact in the ... then join host Cheryl K. Goodman, CEO of Social Global ...
Breaking Biology Technology:City of Fayetteville Leads Nation with Innovative Ozone Technology 2City of Fayetteville Leads Nation with Innovative Ozone Technology 3City of Fayetteville Leads Nation with Innovative Ozone Technology 4Polaris Group Announces Treatment of First Patient in Phase 1 Study of ADI-PEG 20 plus Pemetrexed and Cisplatin in Malignant Pleural Mesothelioma And Non-Squamous Non-Small Cell Lung Carcinoma 2Cord Blood Registry Sponsors 2014 World Stem Cell Summit 2Cord Blood Registry Sponsors 2014 World Stem Cell Summit 3
... (Nasdaq: GENR ) today announced that Jack Armstrong, President,and ... the BIO,Business Forum. The presentation will provide an update on ... Convention Center in San,Diego on Tuesday, June 17, 2008 at ... join a panel of experts to discuss new advancements,in the ...
... Program Supports Development of Strong Scientific Capacity in ... Charitable,Trusts and the University of California at San ... have been named 2008 Pew,Latin American Fellows in ... to UCSF, the highly competitive fellowship program offers ...
... community, LISLE, Ill., June 12 ... retirement community located in Chicago,s,western suburbs, announces ... site,( http://www.VillaStBen.org ). The new site depicts ... in-depth information and support for,residents, prospective seniors, ...
Cached Biology Technology:Genaera Corporation to Present at BIO Business Forum 2Genaera Corporation to Present at BIO Business Forum 3Ten Latin American Scientists Named 2008 Pew Fellows in the Biomedical Sciences 2Villa St. Benedict Announces New Web Site 2
Mouse monoclonal [4A2.2] to SLC6A4 ( Abpromise for all tested applications). entrezGeneID: 6532 SwissProtID: P31645...
... The 2/3D Waver Shaker combines shaking and ... with a 330 x 330 mm stainless steel ... top incubator and cold room operation. The platform ... degree for a vigorous with action and rotation ...
Anti-DNA Polymerase a, Human Description: 50 l Research Focus: cancer & cell proliferation Storage: 4C Shipping Temperature: 4C...
... The Experion HighSens analysis kit for 25 ... to perform high-sensitivity RNA analysis (at picogram ... This kit includes 25 RNA HighSens microfluidic ... 2 x 20 microliters RNA HighSens stain, ...
Biology Products: