Navigation Links
Melting glaciers, enough sand to bury London, and ancient ecosystem engineering
Date:3/19/2012

oterozoic increase in oxygen concentration, could equally lead to a revolution in the structure and evolution of marine paleocommunities. In the course of studying Ediacaran-age rocks in a remote region of arctic Siberia, Vladimir Rogov and fellow researchers from Institute of Petroleum Geology and Geophysics in Novosibirsk (Russia) unexpectedly came across the oldest evidence of bioturbation (disruption of fine-laminated sediments by purposeful burrowing of animals in search for food) that significantly precedes the Cambrian radiations. Of special interest is that the advent of bioturbation in the fossil record coincides with the earliest ecological differentiation of macroscopic Ediacaran communities, which is interpreted to be a direct consequence of ecosystem engineering by animals. Bioturbation in modern seafloor habitats substantially affects key ecosystem process, including biogeochemical interactions, nutrient cycling, and primary productivity; the first appearance and expansion of bioturbation in the Ediacaran, therefore, must have had a profound effect on ecosystem structure and functioning.


Sa'al volcano-sedimentary complex (Sinai, Egypt): A latest Mesoproterozoic volcanic arc in the northern Arabian Nubian Shield
Yaron Be'eri-Shlevin et al., Laboratory for Isotope Geology, Swedish Museum of Natural History, Stockholm SE-10405, Sweden; and Institute of Earth Sciences, Hebrew University of Jerusalem, Jerusalem 91904, Israel. Posted online 19 Mar. 2012; doi: 10.1130/G32788.1.

Yaron Be'eri-Shlevin of the Swedish Museum of Natural History and colleagues present findings of an approximately one billion year old (Ga) island arc at the northern part the Arabian-Nubian Shield (ANS). Volcanic-platonic rocks from the Sa'al metamorphic complex (SMC) in Sinai, Egypt, have island arc geochemical affinity and yield zircon U-Pb ages of ~1.02-1.03 Ga. They contain zircon xenocrysts of dominantly 1.11 Ga and a few of Paleoprotero
'/>"/>

Contact: Christa Stratton
cstratton@geosociety.org
Geological Society of America
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9

Related biology news :

1. Extreme melting on Greenland ice sheet, reports CCNY team
2. Research finds Greenland glacier melting faster than expected
3. Ancient glacial melting process similar to existing concerns about Antarctica, Greenland
4. The dark side of spring? Pollution in our melting snow
5. Large CO2 release speeds up ice age melting
6. Bone replacement from laser melting
7. Antifreeze proteins can stop ice melting, Queens professors find
8. Black carbon a significant factor in melting of Himalayan glaciers
9. Glacier-melting debate highlights importance of satellites
10. Melting tundra creating vast river of waste into Arctic Ocean
11. Spring agricultural fires have large impact on melting Arctic
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/27/2015)... , May 27, 2015   Codonics ... safety systems and image documentation solutions and ... comprehensive, technologically-advanced automation solutions, is pleased to ... The Codonics® Safe Label System® (SLS), an ... conjunction with the Omnicell Anesthesia Workstation, helps ...
(Date:5/26/2015)... , May 26, 2015 ... announced the addition of the "Saudi Arabia ... report to their offering. ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ... Arabia is projected to grow at ... high growth is attributed to the surging demand ...
(Date:5/25/2015)... May 25, 2015  Australia,s market for wearable technologies ... 2014 saw the advent of several trials and prototypes. ... 2015 is expected to ignite interest in wearables as ... Australia . This in turn will spur ... drive new partnerships amongst vendors and distributors. ...
Breaking Biology News(10 mins):Codonics and Omnicell Expand Partnership 2Codonics and Omnicell Expand Partnership 3Codonics and Omnicell Expand Partnership 4Saudi Arabia Biometric Systems Market Forecast and Opportunities, 2020 with Morpho Safran, ZK Technlogy, and Suprema Dominating 2Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 2Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 3Australian wearables market to grow at CAGR of 78%; revenue of A$1 billion by 2018, says Frost & Sullivan 4
... has published a paper today that is the most ... temperatures are having on the worlds coral reefs. ... Change and Ocean Acidification, co-authored by seventeen marine scientists ... will not survive the drastic increases in global temperatures ...
... Mass. -- A pioneering study of wild chimpanzees has ... experience menopause, rebutting previous studies of captive individuals which ... 35 to 40 years of age. Together with ... -- described this week in the journal Current Biology ...
... the Open Access publisher for Physics, Mathematics and ... CERN and DESY high-energy physics laboratories. Under ... charges for all research published by their investigators ... A. PMC Physics A is edited by ...
Cached Biology News:Immediate action needed to save corals from climate change 2Immediate action needed to save corals from climate change 3Wild chimpanzees appear not to regularly experience menopause 2Top physics laboratories sign up to open access with PhysMath Central 2
(Date:5/27/2015)... Mass. , May 27, 2015  RXi ... company focused on discovering and developing innovative therapies ... today provided an update on the status of the ... Logo - http://photos.prnewswire.com/prnh/20130917/NE80755LOGO ... were 3,085 and 21 shares of Series A ...
(Date:5/26/2015)... Regenestem Network has announced ... in Buenos Aires, Argentina. The clinic will be lead ... Pastrana has assembled a multidisciplinary team of medical professionals ... state-of-the-art Puerto Madero office. , The new Regenestem ... IV clinical studies in cellular therapies, and establish Regenestem ...
(Date:5/26/2015)... and HILDEN, Germany ... QIAGEN N.V. (NASDAQ: QGEN ; Frankfurt Prime ... its QIAGEN Clinical Insight ® (QCI™) bioinformatics ... to interpret and report on genomic variants identified ... applications for the bioinformatics platform are in oncology, ...
(Date:5/26/2015)... -- Tianyin Pharmaceutical Inc. (NYSE Amex: TPI ), ... modernized traditional Chinese medicine (mTCM), branded generics and active ... of Shareholders for fiscal year ended June 30, 2014 ... office located in Chengdu, China ... in Chengdu, China ) on May ...
Breaking Biology Technology:RXi Pharmaceuticals Provides an Update on Series A and Series A-1 Preferred Stock 2RXi Pharmaceuticals Provides an Update on Series A and Series A-1 Preferred Stock 3Regenestem Network and Silvina Pastrana, M.D. Announce the Opening of a New Stem Cell Clinic in Buenos Aires 2Regenestem Network and Silvina Pastrana, M.D. Announce the Opening of a New Stem Cell Clinic in Buenos Aires 3QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 2QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 3QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 4QIAGEN Launches Clinical Bioinformatics Platform for Next-Generation Sequencing 5TPI Adjourned Its 2014 Annual Shareholder Meeting and Received Notice of Non-Compliance with NYSE MKT Continued Listing Requirements 2TPI Adjourned Its 2014 Annual Shareholder Meeting and Received Notice of Non-Compliance with NYSE MKT Continued Listing Requirements 3
... , NAGOYA, Japan , Jan. ... with the collaboration of Osaka University, has successfully ... and H3N2) type influenza virus by utilizing blood samples from ... Kazuyoshi Ikuta , Ph. D., at the Department of Virology, ...
... , TUALATIN, Ore. , ... Board: WYNX), a platform company dedicated to the acquisition, ... that it has reached an agreement with British-based Ingenion ... generation Gas Quality Inferential Measurement Device (GasPT2). , The ...
... LEIDEN, The Netherlands , January ... collaborations that are extremely,valuable for pharmaceutical research in the ... of the Top Institute, which was published today. In,the report, ... that,TI Pharma is well on its way to achieving the ...
Cached Biology Technology:Generation of Fully Human Monoclonal Antibodies Neutralizing Influenza Virus - Use of SPYMEG as a novel human lymphocyte fusion partner 2Generation of Fully Human Monoclonal Antibodies Neutralizing Influenza Virus - Use of SPYMEG as a novel human lymphocyte fusion partner 3Waytronx Announces Agreement for Development and Production of Its GASPT2 Device With UK-Based Ingenion Design Limited 2Waytronx Announces Agreement for Development and Production of Its GASPT2 Device With UK-Based Ingenion Design Limited 3Waytronx Announces Agreement for Development and Production of Its GASPT2 Device With UK-Based Ingenion Design Limited 4Veerman Committee Argues for Continuation of TI Pharma 2
... calibrating single-channel and multi-channel pipettes. ,Thanks to ... case, the MCP1-S is ideal for calibrating ... at the users premises. The unit is ... channels are tested automatically. Multi-channel pipettes can ...
... Yeast Whole Genome ChIP-on-chip Microarray is ... yeast (S. cerevisiae) DNA binding proteins ... Agilent DNA microarrays. This set delivers ... with greater true binding events and ...
... Yeast Whole Genome ChIP-on-chip Microarray is ... yeast (S. cerevisiae) DNA binding proteins ... Agilent DNA microarrays. This set delivers ... with greater true binding events and ...
... This kit is designed for easy ... The protocol allows for successful transformation simply ... kit reagents with cultured yeast cells. No ... washing, are required. The kit is particularly ...
Biology Products: