Navigation Links
Microfossils disclose geologic history of eastern California
Date:10/4/2007

Boulder, CO, USA The Bird Spring Shelf in southeastern California and basins to the west reveal a complex history of late Paleozoic sedimentation, sea-level changes, and deformation along the western North American continental margin. A new book published by the Geological Society of America captures insights into the tectonics and paleogeography of the region.

The Pennsylvanian-Early Permian Bird Spring Carbonate Shelf, Southeastern California: Fusulinid Biostratigraphy, Paleogeographic Evolution, and Tectonic Implications focuses on evidence from ancient seas across a considerable expanse of geologic time.

"Detailed correlations between fusulinid-bearing rocks of the Bird Spring Shelf and deep-water deposits to the northwest reveal the complex history of the area," said author Calvin Stevens of San Jose State University in California. "They confirm the late Paleozoic as a time of major tectonic instability on the continental margin."

Fusulinids, single-celled marine organisms with multiple chambers composed of calcite, typically resemble grains of wheat. They inhabited the world's seas 315 to 250 million years ago and disappeared during the end-Permian mass extinction. Today they are important guide fossils in understanding Pennsylvanian and Permian rocks and systems.

Stevens and co-author Paul Stone, U.S. Geological Survey, Menlo Park, recognized 69 fusulinid species which subsequently formed the basis of their correlations. They utilized recent data from the same area on conodonts, another extinct marine creature, to place their work in the context of standard Permian timescales.

According to Stevens a number of the fusulinid species were described as new while others allow comparison with those from other regions. The resulting reconstructions provide a more complete picture of the geology of western North America during the late Paleozoic.


'/>"/>

Contact: Ann Cairns
acairns@geosociety.org
303-357-1056
Geological Society of America
Source:Eurekalert

Page: 1

Related biology news :

1. Microfossils unravel climate history of tropical Africa
2. New results validating Pall prion reduction filter disclosed at ISBT Congress
3. Divergent life history shapes gene expression in brains of salmon
4. Restaurant seafood prices since 1850s help plot marine harvests through history
5. Finding rewrites the evolutionary history of the origin of potatoes
6. Illinois pig to make history as source of first complete swine genome
7. History of human cannibalism eats away at researchers
8. History-hunting geneticists can still follow familiar trail
9. Coral stress like never in history
10. Ocean seep mollusks may share evolutionary history with other deep-sea creatures
11. Hotspots of mercury contamination identified in eastern North America
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:3/23/2015)... --NXT-ID, Inc. (NASDAQ: NXTD ) ("NXT-ID" or the "Company"), ... market, announces its biometric payment technology, the Wocket® smart wallet, ... March 30 th . The new ... York markets. Gino Pereira ... new ad campaign following the recent initial shipment of Wocket ...
(Date:3/20/2015)... 2015 Research and Markets ( http://www.researchandmarkets.com/research/vkzvcs/iris_biometrics ) ... Global Strategic Business Report" report to their offering. ... in US$ Thousands. The report provides separate comprehensive analytics for ... , Europe , Asia-Pacific ... Latin America . Annual estimates and ...
(Date:3/17/2015)... SAN DIEGO , March 17, 2015 /PRNewswire/ ... and emotion analytics software, today announced general availability ... on-demand web service for the analysis of facial ... they experience advertising, media content, products and services. ... customer attention, engagement and sentiment - as derived ...
Breaking Biology News(10 mins):NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 2NXT-ID's Wocket Smart Wallet to Launch New CNBC Regional TV Ad Campaign 3Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 2Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 3Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 4Iris Biometrics - Global Strategic Business Report 2015: System & Network Access Control - A Robust Market Opportunity in the Offing 5New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 2New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 3New Emotient Web Service Measures Audience Response Using On-Demand Facial Expression Analysis 4
... part, responsible for our higher rates of cancer? That,s a ... Tech,s School of Biology and chief research scientist at the ... study, it seems that McDonald is on to something. The ... Hypothesis and will appear in the forthcoming issue of ...
... PROVIDENCE, R.I. [Brown University] BrainGate, an investigational technology ... people with paralysis to use those signals to control ... clinical trial. The system is based on neuroscience, engineering ... BrainGate2 pilot clinical trial is taking place at Massachusetts ...
... Caribbean have been comprehensively ,flattened, over the last 40 years, ... East Anglia (UEA). The collapse of reef structure has ... whammy for fragile coastal communities in the region. ... was in decline, but this is the first large scale ...
Cached Biology News:Brain-computer interface, developed at Brown, begins new clinical trial 2Brain-computer interface, developed at Brown, begins new clinical trial 3Brain-computer interface, developed at Brown, begins new clinical trial 4Caribbean coral reefs flattened 2
(Date:3/26/2015)... 26, 2015 WriteResult, a premier provider ... from Yale University’s School of Public Health and New ... during a 4 month-long project. The goal of the ... income families with free access to fresh produce and ... health concerns like high blood pressure, diabetes and weight ...
(Date:3/25/2015)... Agnition announced today that it will ... airing for the first time at 7:30 a.m. CST ... will explore the extremely important role soil microbes perform ... patented Microbial Catalyst™ technology that enhances soil and plant ... will air again on April 28. , A biochemist ...
(Date:3/25/2015)... ROCKVILLE, Md. , March 25, 2015 ... for the Vaccine Industry Excellence (ViE) Award "Best Clinical ... second consecutive year that Optimal has been selected as ... World Vaccine Congress, receiving a "Highly Recommended" distinction in ... generate recognition of the efforts, accomplishments, and positive contributions ...
(Date:3/25/2015)... 2015  S&P Capital IQ (MHFI) announced today ... coverage on Abattis Bioceuticals Corp . ... a specialty biotechnology company with capabilities through its ... proprietary ingredients, bio-similar compounds, patented equipment and consulting ... America . The company seeks to capitalize ...
Breaking Biology Technology:Yale and New Haven Farms Improving Patient Health with WriteResult's myPROpad™ 2Yale and New Haven Farms Improving Patient Health with WriteResult's myPROpad™ 3Agnition to be Featured In Upcoming Episode of American Farmer on RFD-TV 2Optimal Research Nominated 2015 Vaccine Industry Excellence (ViE) Award 2S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 2S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 3S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 4S&P Capital IQ Initiates Coverage on Abattis Bioceuticals Corp. in S&P Capital IQ Factual Stock Reports 5
... , , DURHAM, N.C., Sept. ... the company,s proxy, which is being mailed today, asks shareholders to ... Oct. 19, 2009. , , "At last years, ... the counter on the bulletin board and we promised to seek ...
... , , , ... of world leader in hyperbaric medicine ... William I. Preuit to the position of senior vice president of ... leading marketing professional such as Bill to this position shows the ...
... TAI,AN, China, Sept. 9 /PRNewswire-Asia-FirstCall/ -- ... ("China Biologic," or the "Company"),one of the ... of China ("PRC"), operating through its indirect ... ("Taibang") and,Chongqing Dalin Biologic Technologies Co., Ltd. ...
Cached Biology Technology:Oxygen Biotherapeutics, Inc. Seeks Shareholder Approval for Reverse Stock Split 2Sechrist Increases Focus on International Markets; Appoints William Preuit Senior Vice President 2China Biologic Products Appoints Director of Research and Development 2China Biologic Products Appoints Director of Research and Development 3
... For knockdown of all human, ... siRNAs , Genomewide, predesigned siRNAs ... RNAi , Ready-to-use, convenient matching ... RT-PCR Cost-effective RNAi and ...
... far-infrared range FT-IR spectrometers give you the ... Yet all this comes at an amazingly ... Having a larger and faster mirror closer ... FT-IRs provides 300%,larger solid angle of energy ...
... The Rapid-Screen cDNA Library Panels were ... just three sets of PCRs to identify ... analysis is performed in a 96-well "Master ... from 5,000 clones. Having identified the positive ...
... 8800 Genetic Analysis System, which processes two 96-well ... system adds a higher level of throughput to ... part of Beckman Coulters new GenomeLab family of ... the Biomek series liquid handers, for increased automation. ...
Biology Products: