Navigation Links
Algae and pollen grains provide evidence of remarkably warm period in Antarctica's history
Date:9/30/2009

BATON ROUGE For Sophie Warny, LSU assistant professor of geology and geophysics and curator at the LSU Museum of Natural Science, years of patience in analyzing Antarctic samples with low fossil recovery finally led to a scientific breakthrough. She and colleagues from around the world now have proof of a sudden, remarkably warm period in Antarctica that occurred about 15.7 million years ago and lasted for a few thousand years.

Last year, as Warny was studying samples sent to her from the latest Antarctic Geologic Drilling Program, or ANDRILL AND-2A, a multinational collaboration between the Antarctic Programs of the United States (funded by the National Science Foundation), New Zealand, Italy and Germany, one sample stood out as a complete anomaly.

"First I thought it was a mistake, that it was a sample from another location, not Antarctica, because of the unusual abundance in microscopic fossil cysts of marine algae called dinoflagellates. But it turned out not to be a mistake, it was just an amazingly rich layer," said Warny. "I immediately contacted my U.S. colleague, Rosemary Askin, our New Zealand colleagues, Michael Hannah and Ian Raine, and our German colleague, Barbara Mohr, to let them know about this unique sample as each of our countries had received a third of the ANDRILL samples."

Some colleagues had noted an increase in pollen grains of woody plants in the sample immediately above, but none of the other samples had such a unique abundance in algae, which at first gave Warny some doubts about potential contamination.

"But the two scientists in charge of the drilling, David Harwood of University of Nebraska Lincoln, and Fabio Florindo of Italy, were equally excited about the discovery," said Warny. "They had noticed that this thin layer had a unique consistency that had been characterized by their team as a diatomite, which is a layer extremely rich in fossils of another algae called diatoms."

All re
'/>"/>

Contact: Ashley Berthelot
aberth4@lsu.edu
225-578-3870
Louisiana State University
Source:Eurekalert

Page: 1 2 3 4

Related biology news :

1. Troublesome green algae serve as coating substrate in record-setting battery
2. Green energy from algae
3. Plankton Power and RTDC announce proposed algae-to-biofuels pilot facility on Cape Cod
4. Scientists report first remote, underwater detection of harmful algae, toxins
5. Coralline algae in the Mediterranean lost their tropical element between 5 and 7 million years ago
6. Genes from tiny marine algae suggest unsuspected avenues for new research
7. Genes from tiny algae shed light on big role managing carbon in worlds oceans
8. ISU researcher identifies protein that concentrates carbon dioxide in algae
9. Nanofarming technology harvest biofuel oils without harming algae
10. Mighty diatoms: Global climate feedback from microscopic algae
11. Dust deposited in oceans may carry elements toxic to marine algae
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/18/2014)... a world-leading provider of scientific, technical and medical ... Management Society (ARMS), recognized the academic research achievements ... Young Researcher of the Year Awards. , The ... Convention Centre and in conjunction with the ARMS ... Australia,s and New Zealand,s scientific community. Guest of ...
(Date:9/18/2014)... is probably the ultimate form of camouflage: you don,t ... this strategy is not as uncommon as you might ... County, USA, explains that the larval life stages of ... part of the anatomy that most creatures cannot make ... have to shield each individual eye unit with an ...
(Date:9/17/2014)... to reproductive technologies, the justice and well-being of ... to identify key issues, articulate their values and ... most defensible ways forward. But what are the ... The Hastings Center and the Presidential Commission for ... to publish a series of essays to highlight ...
Breaking Biology News(10 mins):Elsevier and Australasian Research Management Society award scientists at Scopus ceremony 2Transparent larvae hide opaque eyes behind reflections 2Why bioethics literacy matters 2Why bioethics literacy matters 3
... This release is available in German . ... blood cells and the functioning of the nervous system. Unable to ... via animal proteins. So far it has been known that on ... organelles, so-called lysosomes. From there, the vitamin enters the cell interior ...
... CITY, MOTwo opposing teams battle it out to regulate ... activators, keeps DNA open to enzymes that transcribe DNA ... twisting DNA into an inaccessible coil around histone proteins, ... by enzymes that elongate an RNA strand. Both ...
... scientists have, for the first, time created a type ... functional, bio-compatible nanoscale wires into engineered human tissues. ... in Nature Materials , a multi-institutional research team ... Professor of Chemistry at Harvard and Daniel Kohane, a ...
Cached Biology News:Vitamin B12 deficiency: Tracing the causes 2Controlling gene expression: How chromatin remodelers block a histone pass 2Controlling gene expression: How chromatin remodelers block a histone pass 3Merging the biological and the electronic 2Merging the biological and the electronic 3
(Date:9/19/2014)... 19, 2014 BioTech News Coverage: ... and results of studies and trials.  Companies in focus ... (NYSE: LLY ), Gilead Sciences Inc. (NASDAQ: ... CELG ) and Arena Pharmaceuticals Inc. (NASDAQ: ARNA) ... prodrug therapeutics for the treatment of cancer, announced that ...
(Date:9/19/2014)... September 19, 2014 Cereal grain ... industries will gather October 5–8, 2014, for the ... Island Convention Center in Providence, Rhode Island. The ... work of food scientists, chemists, microbiologists, nutritionists, and ... food production management. To date, 1,000 attendees have ...
(Date:9/19/2014)... , September 19, 2014 , ... European Society for Paediatric Endocrinology (ESPE) Meeting  ... and medical research in the field of growth  , ... Darmstadt, Germany , today announced the ... for 2014. The awards were announced during a Satellite ...
(Date:9/18/2014)... 18, 2014 Bipartisan passage this week ... designed to stimulate development and commercialization of new technologies ... by leaders of SPIE, the international society for ... Manufacturing and Innovation (RAMI) Act, now moves to the ... said they are optimistic that it will win passage ...
Breaking Biology Technology:Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 2Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 3Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 4Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 5Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 6Biotech Companies Pushing Sector Higher With Recent Therapeutic Advancements & Patent Approvals - Company Wins Summary Judgment For Prodrug Patent 7Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 2Latest Research on Cereal Grain Quality, Health Benefits and Food Production to be Presented During the AACC International Annual Meeting 3EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 2EMD Serono Awards Grant for Growth Innovation (GGI) for the First Time 3House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 2House passage of high-tech manufacturing bill is move toward stronger economy, say SPIE leaders 3
... tracking the number and dimension of particles or droplets as they ... are specific and possibly unique, changes that are of critical importance ... provide you with the knowledge, information and best practices you need ... ...
... of a new system to study crystallization processes for ... name,Crystalline. , The Crystalline has ... to learn as much as possible about a drug ... "Avantium is proud to launch its next system ...
... Institute have discovered a new method for controlling ... potentially one step closer to realizing the mass ... sheet of carbon, was discovered in 2004 and ... silicon as the fundamental building blocks of nanoelectronics. ...
Cached Biology Technology:Maximize Data Analysis with METTLER TOLEDO FBRM 2Avantium Launches the Crystalline, a New Parallel System for Crystallization Research 2Light-speed nanotech: Controlling the nature of graphene 2
... Kit is designed for concentration and ... samples. Proteomics sample analysis is often ... impurities such as buffers, salts and ... interfere with electrophoretic separations or enzymatic ...
... offers maleimide activated carrier proteins to ... Imject Maleimide Activated Carrier Proteins are ... preactivated with a heterobifunctional cross-linker (Sulfo-SMCC). ... sulfhydryl-reactive carrier protein. Thus allowing ...
... kit allows for rapid, convenient, and efficient ... bind/wash/elute process utilizes a spin column to ... for concentration of proteins which were electro-eluted ... strong ion exchangers, offering high binding capacity ...
... polystyrene with frosted labeling surfaces, volume ... counting. 100% integrity tested. Linkage: This ... number, created to easily match Cornings ... yet, please order under the old ...
Biology Products: