Navigation Links
August 2009 Geology and GSA Today media highlights
Date:7/31/2009

margin of the Tibetan Plateau. However, the modern spring dust in Beijing is characterized by totally different isotopic compositions, which indicate an additional contribution (about 50%) from the desertified lands in its adjacent north and west, due to anthropogenic activities. The new finding is not only critical in planning long-term strategies for dust control but also is a significant benefit to researches of environmental change-based eolian deposits.

Vertebrate extinctions and reorganizations during the Late Silurian Lau Event
Mats E. Eriksson et al., Dept. of Geology, GeoBiosphere Science Centre, Lund University, Solvegatan 12, SE-223 62 Lund, Sweden. Pages 739-742.

During the Silurian Period (about 443-416 million years ago) fish faunas were struck hard by extinctions caused by the so-called Lau Event. This globally recognized event had significant effects on marine life, oceanic chemistry, and the sea-floor sediments deposited. Eriksson et al. show that the Lau Event had a profound impact on the early evolutionary history of vertebrates, wiping out almost two-thirds of the fish species and causing major ecological reorganizations over an estimated time span of 200,000 years. Immediately prior to the event, the jawed acanthodians dominated the fish faunas, whereas the event led to a diverse fauna and a brief but marked dominance of the jawless thelodonts. Both these groups of fish are now extinct but were common inhabitants in the Silurian seas. The stepwise changes observed among the fish faunas resemble those of conodonts, another extinct group of vertebrates, suggesting a similar mode of life and response to the Lau Event.

Super-heavy pyrite (34Spyr > 34SCAS) in the terminal Proterozoic Nama Group, southern Namibia: A consequence of low seawater sulfate at the dawn of animal life
Justin B. Ries et al., Dept. of Marine Sciences, 333 Chapman Hall, CB# 3300, Univ
'/>"/>

Contact: Christa Stratton
cstratton@geosociety.org
303-357-1093
Geological Society of America
Source:Eurekalert

1

GOOD

Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

Related biology news :

1. USGS news: August science picks
2. August LabBits: A media tip sheet from the MBL in Woods Hole
3. AGU journal highlights -- August 6, 2008
4. Story tips from the US Department of Energys Oak Ridge National Laboratory, August 2008
5. Highlights from the August 2008 Journal of the American Dietetic Association
6. August 2008 Geology and GSA Today media highlights
7. BioScience tip sheet July/August 2008
8. Geoscientists meet to discuss Rocky Mountain geology
9. April 2009 Geology and GSA Today media highlights
10. February 2009 Geology and GSA Today media highlights
11. January GEOLOGY media highlights

Post Your Comments:
*Name:
*Comment:
*Email:
(Date:11/26/2009)...DGE, Mass. (November 26, 2009) Whitehead research...r human cells to pinpoint specific genes and prote... Science . , In most human cell cultures genes ...father and one from the mother. Gene inactivation ...one copy is inactivated, the second copy usually r...
(Date:11/25/2009)..., Ga. Bacteria don,t have easy lives. In addition..., they have natural enemies called bacteriophages,...y two days. , Still, bacteria and another class...d in extreme environments such as deep-sea volcani...use they have a built-in defense system that helps...
(Date:11/25/2009)...nt State University assistant professors recently ...ion (NSF) to continue research beneficial to under...890,000. , Christopher Blackwood, assistant prof...s awarded grants to support two separate research ...g Litter Decomposer Communities and Functions from...
Breaking Biology News(10 mins):Knockouts in human cells point to pathogenic targets 2Researchers discover biological basis of 'bacterial immune system' 2Researchers discover biological basis of 'bacterial immune system' 3Kent State University professors focus research on the environment with grants totaling $890,000 2The future of electricity may be found in environmentally friendly thermoelectric cells 14474 1New Fertility Financing Program for Donated Eggs Fills Void Left by Capital One 59486 1New Fertility Financing Program for Donated Eggs Fills Void Left by Capital One 59486 2Inc Magazine Unveils 28th Annual List of Americas Fastest Growing Private Companies the Inc 500 59482 1Inc Magazine Unveils 28th Annual List of Americas Fastest Growing Private Companies the Inc 500 59482 2
...seven million years ago, when the lineage of human...r to rutabagas and turnips may have been one of th...s Greg Laden of the University of Minnesota and Ri... of fleshy underground storage organs like roots a...ft the rain forest to colonize the savannah. They ...
...s produced by huge fires and fossil fuel combustio... the primary ingredients in ground-level ozone, a ..., But new research led by a University of Washingt...ns, nitrogen oxides emitted by the soil are much g...y larger role in seasonal air pollution than previ...
...ered gene mutation may account for many cases of i...n as immunoglobulin A (IgA) deficiency and Common ...rs in the July issue of Nature Genetics. The disco...onditions, which make people highly susceptible to... lack of good tests. , IgA deficiency affects 1 in...
Other Biology News:The roots of civilization trace back to ... roots 2Study uncovers dirty little secret: Soil emissions are much-bigger-than-expected component of air pollution 2Study uncovers dirty little secret: Soil emissions are much-bigger-than-expected component of air pollution 3Gene for immune deficiency syndromes found 2
(Date:11/28/2009)...Advisory Committee on Climate Change (NACCC) throu... in collaboration with the Vanuatu Meteorological ...generated preliminary climate change and sea level...e country’s SNC reporting to the United Nati...). , Port Vila, Vanuatu ...
(Date:11/27/2009)...FirstCall/ -- Stallergenes has been,granted Europe...d children,through a Mutual Recognition Procedure....een marketed, was the reference Member state. ,...lgium, Bulgaria, Cyprus, the,Czech Republic, Eston...ly,Latvia, Lithuania, Luxembourg, Malta, the Neth...
(Date:11/26/2009)...f ultrasmall transistors and more powerful compute...g nanowires are closer to reality after a key disc... the University of California at Los Angeles. , ...es with layers of different materials that are sha...cal requirement for making efficient transistors o...
(Date:11/25/2009)...-- Biotech firm Replikins Ltd., which has analyzed...ic through the prediction, outbreak, and progress ...est biochemical analysis of the virus. The new dat...") virus has dropped from its peak of 3.7 (s.d. 4....ng of 2009 to resting non-epidemic levels this wee...
Breaking Biology Technology:Preliminary Climate and Sea Level Changes for Vanuatu Through the Application of SimCLIM 2Preliminary Climate and Sea Level Changes for Vanuatu Through the Application of SimCLIM 3Preliminary Climate and Sea Level Changes for Vanuatu Through the Application of SimCLIM 4STALLERGENES is Granted a Marketing Authorization for Oralair(R) in Europe 2STALLERGENES is Granted a Marketing Authorization for Oralair(R) in Europe 3Nanowires key to future transistors, electronics 2Nanowires key to future transistors, electronics 3Biological H1N1 Vaccines: Too Little, Too Late 2Biological H1N1 Vaccines: Too Little, Too Late 3Biological H1N1 Vaccines: Too Little, Too Late 4Biological H1N1 Vaccines: Too Little, Too Late 5
...SHIP ROLE WITH PATENT FOR APPARATUS AND,METHOD FOR...n. 22 Vapotherm, the,global leader in High Flow O...patent rights have been validated for an apparatus...ory tract therapy. Reinforcing,Vapotherm,s princip...,046,B2 has been granted through 2022 and provides...
...d for FOSRENOL(R), SARATOGA SPRINGS, N.Y., Jan. 2...any, is pleased to announce that Shire,Pharmaceuti...ed Palio as,agency of record to lead the professio..., which is part of Shire,s renal business unit., ...nsight to work on,behalf of this important product...
...el, HRH Prince Hassan, Malcolm McLaren, Carolyn ...anel, NEW YORK, Jan. 22 Bob Isherwood, Worldwide...ounces the contenders to win the,fifth Saatchi & S...nially, this global competition was established by...mote ideas that have the potential,to change the w...
Other Biology Technology:Vapotherm(R) Announces Validation of U.S. Patent 2Shire Engages Palio 2Shire Engages Palio 3Ten Extraordinary Innovations Line Up For US $100,000 Saatchi & Saatchi Award For World Changing Ideas 2Ten Extraordinary Innovations Line Up For US $100,000 Saatchi & Saatchi Award For World Changing Ideas 3Ten Extraordinary Innovations Line Up For US $100,000 Saatchi & Saatchi Award For World Changing Ideas 4Ten Extraordinary Innovations Line Up For US $100,000 Saatchi & Saatchi Award For World Changing Ideas 5
...SOS Protein Solubility Service, We deliversoluble... yields the best soluble protein results , 24 solu...ne submitted , Powerful results on your most insol...tion Service (SOS) uses proprietary tools and know...
...The Rapid-Screen cDNA Library Panels were designed...ee sets of PCRs to identify the desired cDNA clone... "Master Plate," where each well contains plasmid ...ive well(s) by gel electrophoresis of the reaction...
Murashige and Skoog Basal Medium with Gamborg's Vitamins from Sigma-Aldrich
...Detection of Total Canine Endostatin. Canine Cyto... Life Science products include a line of enzyme-li...gents used for multiple research applications. The...k and dependable assays. The quantitative test kit...
Biology Products: