Navigation Links
New geology research explores intriguing questions
Date:12/18/2013

D Utrecht, Netherlands, n.vanhelmond@uu.nl. Posted online ahead of print on 13 Dec. 2013; http://dx.doi.org/10.1130/G34929.1.

Changes in rainfall accompanied and perhaps partly caused the development of oxygen-poor oceans (OAE2), about 94 million years ago. Since the seventies it is known that at that time, the age of the dinosaurs, ocean waters in many regions became poor in oxygen, which all animals require. OAE2 is, hence, often regarded as an analogue of today, as oxygen concentrations are currently decreasing in many coastal waters due to human impact. This new paper shows evidence for large changes in the water cycle during OAE2, based on the chemistry and microfossils preserved in sediments deposited in a shallow sea, the current New Jersey coastal plain. When widespread ocean-anoxia developed, marine algae show an increase in fresh water from rivers. Moreover, during a brief cooling, when oceans became slightly richer in oxygen, freshwater supply decreased and dust input increased. This indicates that climate, not only temperature but also precipitation, was strongly coupled to the availability of oxygen in the ocean. Potentially, the additional supply of freshwater to coastal waters regionally inhibited the mixing of oxygen-rich surface waters with deeper waters, causing a lack of oxygen. Analogously, modern global warming and associated intensification of seasonal rainfall might also result in near-shore oxygen depletion.


Trilobites in early Cambrian tidal flats and the landward expansion of the Cambrian explosion
M. Gabriela Mngano et al., Department of Geological Sciences, University of Saskatchewan, 114 Science Place, Saskatoon, Saskatchewan S7N 5E2, Canada, . Posted online ahead of print on 13 Dec. 2013; http://dx.doi.org/10.1130/G34980.1.


'/>"/>
Contact: Kea Giles
kgiles@geosociety.org
Geological Society of America
Source:Eurekalert  

Page: 1 2 3 4 5 6 7 8 9

Related biology news :

1. Seismic zones, river deltas, landslides, fossil reptiles, and more new Geology science
2. From 503-million-year-old fungi to recent earthquakes: New Geology posted ahead of print
3. Sandy beaches, hydrocarbon reservoirs, tectonic tilting: Its all about geology
4. Geosphere: How geology, technology, modeling, and mapping see into Earths past and present
5. Geologys Mystery Interval, the Great Deepening, and the largest kill-off in Earth history
6. GEOLOGY adds 30 new articles online
7. GEOLOGY speeding top science to online platform
8. GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury
9. GEOLOGY starts 2013 with 25 new articles posted online ahead of print
10. New Geology study raises questions about long-held theories of human evolution
11. The Geological Society of America Journal Geology: Dynamic geoscience
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
New geology research explores intriguing questions
(Date:9/17/2014)... the Copenhagen Centre for Social Evolution and Yale University ... birth weight and -length can partially predict the likelihood ... autism and schizophrenia later in life. The study analyzed ... hospital diagnoses for up to 30 years, and adjusted ... is published today in the Proceedings of the ...
(Date:9/17/2014)... first partial genome sequence of an ancient pig. Extracted ... of the Montsoriu Castle in Girona, the data obtained ... today,s Iberian pig. Researchers also discard the hypothesis that ... The study, published in Heredity , sheds new ... on that of the Iberian breed, considered to be ...
(Date:9/17/2014)... EAST LANSING, Mich. Mutations in the human retinoblastoma ... Now, Michigan State University scientists have turned to fruit ... cancer gene. , In a paper featured on ... Journal of Biological Chemistry , Michigan State University researchers ... mutations similar to those present in the human cancer ...
Breaking Biology News(10 mins):Size at birth affects risk of adolescent mental health disorders 2Size at birth affects risk of adolescent mental health disorders 3Iberian pig genome remains unchanged after 5 centuries 2Abnormal properties of cancer protein revealed in fly eyes 2
... has found that a little-understood disease study authors are ... bee larvae, is the largest risk factor for predicting ... seen symptoms similar to IBDS associated with viruses spread ... Tarpy, an associate professor of entomology at North Carolina ...
... South Atlantic Ocean can be used to accurately forecast, ... miles away in northwestern India, a University of Michigan ... July sea surface temperatures in the tropical South Atlantic ... epidemics in the arid and semi-arid regions of northwest ...
... by researchers at the University of California, San ... produced the most comprehensive virtual reconstruction of human ... known as Recon 2, to identify causes of ... and even psychiatric and neurodegenerative disorders. Each person,s ...
Cached Biology News:Researchers id queens, mysterious disease syndrome as key factors in bee colony deaths 2Early warning system provides 4-month forecast of malaria epidemics in northwest India 2International consortium builds 'Google Map' of human metabolism 2International consortium builds 'Google Map' of human metabolism 3International consortium builds 'Google Map' of human metabolism 4
(Date:9/18/2014)... Bryan-College Station, Texas (PRWEB) September 18, 2014 ... University System Chancellor John Sharp, Texas A&M Health ... from the U.S. Department of Health and Human ... GSK today dedicated a national pandemic influenza vaccine ... will serve as an anchor for the Texas ...
(Date:9/18/2014)... Research and Markets has announced the addition ... report to their offering. The ... and in-depth study on the current state of the ... a basic overview of the industry including definitions, classifications, ... analysis is provided for the international markets including development ...
(Date:9/18/2014)... DIEGO , Sept. 18, 2014  MEI Pharma, Inc. ... the clinical development of novel therapies for cancer, announced today ... Executive Officer, will present at BioCentury,s NewsMakers in the ... 8:30 a.m. Eastern time from the Millennium Broadway Hotel & ... live webcast of the presentation can be accessed at ...
(Date:9/18/2014)... , Sept. 18, 2014   Sigma-Aldrich ... it has entered into a new gene editing ... School,s Vector Core. Under the partnership, Sigma-Aldrich will ... experimental design consultation, and dedicated gene editing bioinformaticians. ... gene editing-based research at the U-M Medical School. ...
Breaking Biology Technology:Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 2Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 3Texas A&M Dedicates National Pandemic Influenza Vaccine Manufacturing Facility, on Track for 2016 Start-Up Phase 4Global Human Albumin Industry Report 2014 2Global Human Albumin Industry Report 2014 3MEI Pharma To Present At BioCentury's NewsMakers Conference 2MEI Pharma To Present At BioCentury's NewsMakers Conference 3Sigma-Aldrich, University of Michigan Medical School Establish CRISPR Core Lab Partnership 2Sigma-Aldrich, University of Michigan Medical School Establish CRISPR Core Lab Partnership 3Sigma-Aldrich, University of Michigan Medical School Establish CRISPR Core Lab Partnership 4
... ST. PAUL, Minn., Jan. 3 /Xinhua-PRNewswire/ --,WuXi ... provider of pharmaceutical R&D,outsourcing services, has signed ... Services, Inc. (AppTec). The acquisition of AppTec ... and expertise,gain a significant U.S. operational footprint, ...
... Pharmos Corporation,(Nasdaq: PARS ) announced today ... private placement of its 10% Convertible Debentures due ... $4,000,000 principal amount of the,Debentures, at par, and ... The purchasers consisted of certain existing investors in ...
... Jan. 3 TAP Pharmaceutical Products,Inc. today announced the ... Food and Drug Administration (FDA) for the use of ... and maintenance of,patients with erosive esophagitis and non-erosive reflux ... novel delivery system., "This compound and its novel ...
Cached Biology Technology:WuXi PharmaTech to Acquire AppTec Laboratory Services, Inc. 2WuXi PharmaTech to Acquire AppTec Laboratory Services, Inc. 3WuXi PharmaTech to Acquire AppTec Laboratory Services, Inc. 4WuXi PharmaTech to Acquire AppTec Laboratory Services, Inc. 5Pharmos Corporation Completes Initial Closing of Private Placement 2