Navigation Links
Color in fossil insects, diamonds from the ancient ocean floor and modeling the world's largest rivers
Date:2/22/2013

effects of sulfate reduction on carbonate precipitation in normal marine, hypersaline, and alkaline environments
Patrick Meister, Max Planck Institute for Marine Microbiology, Celsiusstrasse 1, 28205 Bremen, Germany. Posted online 20 Feb. 2013; http://dx.doi.org/10.1130/G34185.1.

Bacteria living at the bottom of shallow lagoons or lakes are thought to be responsible for the formation of hard, layered limestone structures, so-called stromatolites. Stromatolites occur in some of the oldest rocks on Earth and may thus represent the earliest signature of life. A longstanding controversy is which type of bacteria is responsible for the precipitation of the limestone, the building material of the stromatolites. Some scientists suggest cyanobacteria, which are living at the very surface of the stromatolites and produce oxygen like plants. Others suggest that bacteria below the millimeter thick cyanobacterial layer capable of breathing sulfate in absence of oxygen are responsible for the precipitation of limestone. Patrick Meister of the Max Planck Institute, Bremen, demonstrates by a model calculation that if small amounts of sulfate are consumed, sulfate metabolism promotes limestone dissolution. Only if the available sulfate is almost completely consumed, which is not commonly the case in stromatolites, sulfate metabolism promotes precipitation. If we assume that the ocean was more oversaturated with limestone than the modern ocean during several times in Earth history, he writes, then sulfate metabolism would not have contributed to limestone precipitation at all. Thus, stromatolites may either have formed by other groups than sulfate reducing bacteria, or the bacteria were just passively encrusted by limestone.


Reconstructing magma failure and the degassing network of dome-building eruptions
Yan Lavalle et al., Earth, Ocean and Ecological Sciences, Unive
'/>"/>

Contact: Kea Giles
kgiles@geosociety.org
Geological Society of America
Source:Eurekalert

Page: 1 2 3 4 5 6 7 8 9 10 11

Related biology news :

1. University of Colorado and Orphan Technologies sign agreement
2. Bees attracted to contrasting colors when looking for nectar
3. Colorado Marijuana Task Force Gives Green Light To "Pot Tourism"
4. Study shows that diet of resistant starch helps the body resist colorectal cancer
5. Lakewood High School wins Colorado Science Bowl
6. Eating bright-colored fruits and vegetables may prevent or delay ALS
7. Bioinspired fibers change color when stretched
8. Cup color influences the taste of hot chocolate
9. Dance of water molecules turns fire-colored beetles into antifreeze artists
10. 3 new genetic links to colorectal cancer
11. Le Rouge et le Noir: Where the black dahlia gets its color
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:1/22/2015)... /PRNewswire/ - Today, FindBiometrics, the leading source of biometrics industry news, ... website design. "When we launched FindBiometrics 12 years ... O,Neill , founder and CEO of FindBiometrics. "Now it,s maturing ... the key players on a very broad scale.  We are ...
(Date:1/22/2015)... 2015  A man-made form of insulin delivered by nasal ... in adults with mild cognitive impairment and Alzheimer,s disease ... at Wake Forest Baptist Medical Center. The ... cognitive impairment (MCI) or mild to moderate Alzheimer,s dementia ...
(Date:1/22/2015)... , January 22, 2015 , ... year  The European Patent Office to present a video ... British nominations to be featured: Christofer Toumazou and ... former finalists and winners of the Award   Starting ...
Breaking Biology News(10 mins):Identity Industry Leading Publication Debuts New Look As Biometrics Hit Mainstream 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 2Nasal Spray with Insulin Equivalent Shows Promise as Treatment for Adults with Mild Cognitive Impairment, Alzheimer's Dementia 3Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 2Ten Years of the European Inventor Award: A Retrospective Look at the Inventors and Ideas That Have Changed Our Lives 3
... and Zafer Iqbal, research professors at NJIT, were awarded ... arrays of nanoscale electrical probes. Their discovery may ... variation of electrical activity inside biological cells. ... technique that allows for an array of individual, vertically-oriented ...
... DUNES NATIONAL LAKESHORE, Ind. Native bees often small, ... stinging honeybees are quite discriminating about where they ... The study found that, overall, composition of a plant ... a bee community, which may seem counterintuitive at first, ...
... of California, Riverside have made a discovery in the ... drugs and explore novel strategies for treating seizures associated ... Americans. Neurons, the basic building blocks of the ... and chemical signaling. During epileptic seizures, which generally ...
Cached Biology News:Patent for arrays of nanoscale electrical probes awarded to NJIT today 2Picky pollinators: Native bees are selective about where they live and feed 2Picky pollinators: Native bees are selective about where they live and feed 3Picky pollinators: Native bees are selective about where they live and feed 4UC Riverside neuroscientists' discovery could bring relief to epilepsy sufferers 2
(Date:1/23/2015)... Biofertilizers stimulate microbial activities in soil. These microorganisms ... the activities in the soil or in the rhizosphere. ... stress on reducing environmental pollution and on reducing the ... segments the bio fertilizers market with analysis and forecasting ...
(Date:1/22/2015)...  Transwestern | RBJ today announces the firm brokered a long-term ... a leading biopharmaceutical company, at Two Ledgemont Center in ... Richards , president, and Brian Cohen , senior vice ... building at 95 Hayden Ave. Photo - ...
(Date:1/22/2015)... RI (PRWEB) January 22, 2015 Protocol ... , The growing team of brand-neutral, independent consultants, Protocol ... Philip Rogers explained that over the years, his company ... , Moroso, Town of Plainfield, as well as others. ...
(Date:1/22/2015)... 22, 2015 Controlled Substance Compliance Services ... helps companies check the legal requirements around using controlled ... China. , As their international operations expand and ... software solutions built as a result of the first ...
Breaking Biology Technology:Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 2Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 3Biofertilizers Market Expected to Reach $1,649.7 Million by 2019 - New Report By MarketsandMarkets 4Transwestern | RBJ Advises Shire in 202,000 SF Lease, Creating Boston's Largest Suburban Biotech Campus 2Protocol Networks Brings Independent Technology Consulting to the Constitution State 2Global Compliance Service for Controlled Substances to Expand to China 2
... July 9 Abt Bio-Pharma Solutions, Inc.,(ABS), ... economic, and,strategic commercialization solutions, is pleased to ... and business strategy, has been promoted to,Executive ... succeeding Susan Windham-Bannister, who has been appointed,President ...
... Provides expertise in high-growth therapeutic areas to pharmaceutical and ... biotechnology companies ... the last year, BEVERLY HILLS, Calif., July 9 Worldwide Clinical,Trials, ... reached a milestone in establishing itself as a premier global,contract research organization ...
... July 9 Cepheid (Nasdaq:,CPHD) today announced ... on Healthcare Associated Infections, Fred Tenover, Ph.D., ... will serve as a liaison,with the Infection ... Infection (HAI) Consortium program., "The objective ...
Cached Biology Technology:Abt Bio-Pharma Solutions, Inc. Names Nandini Hadker as Executive Director, Succeeding Susan Windham-Bannister 2Abt Bio-Pharma Solutions, Inc. Names Nandini Hadker as Executive Director, Succeeding Susan Windham-Bannister 3Worldwide Clinical Trials Emerges as Leading Global Contract Research Organization 2Worldwide Clinical Trials Emerges as Leading Global Contract Research Organization 3Noted Molecular Epidemiologist Joins Cepheid to Head Healthcare Associated Infection Consortium Program 2Noted Molecular Epidemiologist Joins Cepheid to Head Healthcare Associated Infection Consortium Program 3
Mouse monoclonal [SH-A1] to S100 alpha ( Abpromise for all tested applications). entrezGeneID: 6271 SwissProtID: P23297...
This application changes sensitive keywords in an FCS file to remove patient information. It was contributed by Dr. David Miller....
Rat monoclonal [HK5.3] to B7 RP1 (Biotin) ( Abpromise for all tested applications). entrezGeneID: 23308 SwissProtID: O75144...
Zinc finger MYM-type protein 3 (Zinc finger protein 261) (DXS6673E protein). [Source:Uniprot/SWISSPROT;Acc:Q14202] Antigen: Recombinant Protein Epitope Signature Tag (PrEST)....
Biology Products: