Navigation Links
GEOLOGY starts 2013 with 25 new articles posted online ahead of print
Date:1/30/2013

as a result of the process.


High-precision temporal calibration of Late Permian vertebrate biostratigraphy: U-Pb zircon constraints from the Karoo Supergroup, South Africa
Bruce S. Rubidge et al. (Jahandar Ramezani, corresponding), Bernard Price Institute for Palaeontological Research, School of Geosciences, University of the Witwatersrand, PO Wits, Johannesburg 2050, South Africa; and Dept. of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA. Posted online 4 Jan. 2013; http://dx.doi.org/10.1130/G33622.1.

The continental sedimentary rocks deposited in the Karoo Basin of South Africa preserve a remarkable fossil record of reptile and mammal ancestors that elucidate the evolutionary and biodiversity changes in the crucial geologic period between the Permian and the Jurassic (270-180 million years ago). Stratigraphic zonations based on the South African tetrapod fossils have global applicability in correlating continental deposits throughout the Pangean supercontinent. A major limiting factor, however, has been a lack of independent and reliable age constraints for the Karoo biozones. Bruce S. Rubidge and colleagues report on the discovery of volcanic ash deposits interbedded with four lower Permian biozones of the Karoo Supergroup and their geochronology based on high-precision U-Pb analyses by the CA-TIM method. The calibrated biostratigraphy improves understanding of basin development, as well as rates of vertebrate evolution at a time when the earliest reptile lineages were being established. It also allows correlation to the marine realm with enormous implications for global patterns of faunal evolution, including mass extinction events of the Permian Period and their possible driving mechanisms.


Oxygen isotope composition of meltwater from a Neoproterozoic glaciation in South Ch
'/>"/>

Contact: Kea Giles
kgiles@geosociety.org
303-357-1057
Geological Society of America
Source:Eurekalert  

Page: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21

Related biology news :

1. GEOLOGY returns to Naica Cave, Mexico, and extends its reach to Mercury
2. GEOLOGY speeding top science to online platform
3. GEOLOGY adds 30 new articles online
4. Geologys Mystery Interval, the Great Deepening, and the largest kill-off in Earth history
5. Geosphere: How geology, technology, modeling, and mapping see into Earths past and present
6. Sandy beaches, hydrocarbon reservoirs, tectonic tilting: Its all about geology
7. From 503-million-year-old fungi to recent earthquakes: New Geology posted ahead of print
8. Seismic zones, river deltas, landslides, fossil reptiles, and more new Geology science
9. Large, medically important class of proteins starts to yield its secrets
10. Work starts on fossil fuel free cargo ship set to transform shipping industry
11. Lets get moving: Unraveling how locomotion starts
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
GEOLOGY starts 2013 with 25 new articles posted online ahead of print
(Date:10/18/2014)... undiagnosed, suspected genetic conditions, a certain type of exome ... yield than traditional molecular diagnostic methods, according to a ... being released to coincide with the American Society of ... the protein­coding region of the genome (the complete set ... or organism), has been rapidly applied in research settings ...
(Date:10/16/2014)... body. Battles are won, lost or sometimes end ... as tumor dormancy—can last up to 25 years ... poorly understood. , A new computational model ... Professor of Chemistry at Princeton University, may help ... switch to a malignant state. Published today in ...
(Date:10/16/2014)... infections and worldwide claims the lives of 160,000 ... University have succeeded in developing a promising vaccination ... , Xavier Saelens (VIB/UGent): "We discovered a new ... development of a novel approach to vaccination against ... small children and elderly people." , RSV: ...
Breaking Biology News(10 mins):Study examines type of exome sequencing and molecular diagnostic yield 2Study examines type of exome sequencing and molecular diagnostic yield 3Modeling tumor dormancy 2New perspectives for development of an RSV vaccine 2
... 3, 2010 Genes interact in complex networks that govern ... relationships. Researchers are now discovering how biological networks change ... today in Genome Research ( www.genome.org ), scientists ... light on how interactions go awry in disease. MicroRNAs ...
... Researchers from the University of Leeds, UK, the ... for Molecular Medicine (MDC) in Berlin, Germany, have ... Their studies have identified how ,junk, DNA promotes the ... Professor Constanze Bonifer (University of Leeds) and Dr Stephan ...
... oil could help prevent ulcerative colitis, according to a new ... Anglia (UEA). Presented today at the Digestive Disease ... with a diet rich in oleic acid which is ... ulcerative colitis. Oleic acid is a monounsaturated fatty acid found ...
Cached Biology News:MicroRNA network study implicates rewired interactions in cancer 2'Junk DNA' drives cancer growth 2Olive oil could guard against developing ulcerative colitis 2
(Date:10/25/2014)... , October 24, 2014 ... Markets ( http://www.researchandmarkets.com/research/t5t5pd/the_global_market ) has announced the addition ... Nanotubes, Graphene And Other 2-D Nanomaterials " ... (Logo: http://photos.prnewswire.com/prnh/20130307/600769) , ,CNTs and graphene are ... known to man, with a performance-per-weight greater ...
(Date:10/22/2014)... , Oct. 22, 2014  Actavis plc (NYSE: ... and Rhythm, a biopharmaceutical company, today announced that Actavis ... wholly owned subsidiary, Rhythm Health, Inc., which is developing ... of diabetic gastroparesis and other GI functional disorders. ... trial of relamorelin for the treatment of diabetic gastroparesis ...
(Date:10/22/2014)... Md. (PRWEB) October 21, 2014 Shimadzu ... an LC/MS/MS data tool for the pain management and ... of data processing and review by allowing users to ... to clinicians. , QuantAnalytics allows analysts to filter ... This expedites data processing by eliminating the need to ...
(Date:10/22/2014)... 22, 2014 Currently offering a ... & D Weighing, Rice Lake, and Ohaus, Pipette.com ... . The Sartorius CPA Semi-Micro Balance is ideal ... precise, and user-friendly laboratory balance. , Sartorius is ... their laboratory balances are well known for their ...
Breaking Biology Technology:The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 2The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 3The Global Market for Carbon Nanotubes, Graphene and Other 2-D Nanomaterials 4Actavis Signs Option to Acquire Rhythm Subsidiary and its GI Development Product, Relamorelin 2Actavis Signs Option to Acquire Rhythm Subsidiary and its GI Development Product, Relamorelin 3Actavis Signs Option to Acquire Rhythm Subsidiary and its GI Development Product, Relamorelin 4Actavis Signs Option to Acquire Rhythm Subsidiary and its GI Development Product, Relamorelin 5Shimadzu Releases QuantAnalytics Open Access LCMS Software Package for Clinical Applications 2Pipette.com Launches the Addition of Sartorius CPA Semi-Micro Balance to Their Product Portfolio with Special Promotional Pricing 2Pipette.com Launches the Addition of Sartorius CPA Semi-Micro Balance to Their Product Portfolio with Special Promotional Pricing 3
... at the National Institute of Standards and Technology (NIST) ... viscosity measurementscritical data for a wide variety of fields ... as small as a few nanoliters. Currently a table-top ... tool for biotechnologists studying minute quantities of complex materials ...
... Mr. Robert Nealon reports: IGEN Networks Corp. ... Standard and Poor,s ("S&P") has approved IGEN for their ... Records is considered the premier source for information on ... professionals. As part of the approval, IGEN,s corporate profile ...
... of Services in Neuronal Research Using Human iPS... -- YOKOHAMA, Japan, September 1, 2010 ... ... --> ... var s = ,; var first_result; // Results are keyed by longUrl, so we need to grab ...
Cached Biology Technology:Micro rheometer is latest Lab On a Chip device 2IGEN Networks Corp. obtains Blue Sky Statutory Compliance in 38 States with Approval of Standard & Poor's 2ReproCELL Announces New Line of Services in Neuronal Research Using Human iPS Cells 2ReproCELL Announces New Line of Services in Neuronal Research Using Human iPS Cells 3ReproCELL Announces New Line of Services in Neuronal Research Using Human iPS Cells 4ReproCELL Announces New Line of Services in Neuronal Research Using Human iPS Cells 5ReproCELL Announces New Line of Services in Neuronal Research Using Human iPS Cells 6
... Maximize the value of your ... We offer the support you need ... using the most up to date ... with the Gene Expression Profiling Service ...
... This CLS number is a ... easily match Cornings product number. ... please order under the old ... customer service for assistance. ...
Formula variant: With macro- and micronutrients. Physical Form: powder Suitab tst: plant cell culture tested...
... number is a new product ... Cornings product number. If showing ... under the old Sigma-Aldrich number ... for assistance. ...
Biology Products: