Navigation Links
Geosphere: How geology, technology, modeling, and mapping see into Earth's past and present
Date:7/17/2012

nsing imagery, supporting EO-1 Hyperion image spectra, and field-ground truth samples to map the mineralogy and distribution of hydrothermally altered rocks on the modern summit of Cofre de Perote. The results show that the older Los Pescados debris-flow deposit contains mostly halloysite and hydrous silica minerals, which match the dominant mineralogy of soils and weathered volcanic deposit in the surrounding flanks of Cofre de Perote. Its source materials were most likely derived from initially noncohesive or clay-poor flows, which subsequently bulked with clay-rich valley soils and alluvium in a manner similar to lahars from Nevado del Ruiz in 1985, but on a larger scale. The younger Xico avalanche deposit contains abundant smectite, jarosite, kaolinite, gypsum, and mixed-layered illite/smectite, which are either definitely or most likely of hydrothermal alteration origin.


Middle Miocene to early Pliocene oblique extension in the southern Gulf of California
Fiona H. Sutherland et al., Scripps Institution of Oceanography, University of California San Diego, La Jolla, California 92093, USA. Posted online 16 July 2012; doi: 10.1130/GES770.1.

Seismic reflection profiling reveals an early history of oblique rifting in the Gulf of California that highlights earlier detachment of Baja California away from mainland Mexico. Capture of the Baja California microplate was thought to be a two-step process that began about 12 million years ago but did not gather steam until six million years ago, when extension was focused in what we now call the Gulf of California or Sea of Cortez. New research by Fiona H. Sutherland and colleagues shows that extension focused behind Baja California began in earnest 12 million years ago and has been continuing ever since. This process of nascent rifting is similar to what is happening today in the Walker Lane deformation belt, a zone of trans-tension and shear, just east of the Sierra Nevada mountai
'/>"/>

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

Page: 1 2 3 4 5 6

Related biology news :

1. Road-mapping the Asian brain
2. Beyond base pairs: Mapping the functional genome
3. Speeding up drug discovery with rapid 3-D mapping of proteins
4. 50 Years of Watershed Modeling -- Past, Present and Future
5. GSA Bulletin presents studies in Antarctica, Italy, Mexico, Algeria, Mongolia, and more
6. FirstMark Exhibiting and Presenting at the San Diego Academy of Family Physicians 55th Annual Postgraduate Symposium
7. Coral reef experts to present latest coral reef science during July symposium
8. Amarantus BioSciences to Present at the National Investment Banking Associations (NIBA)122nd Conference in New York City
9. John Theurer Cancer Center presents significant blood cancer research at 2012 ASCO Annual Meeting
10. Validity CTO to Present Natural ID Solutions for Improving Mobile Risk Management and User Experience at NFC Solutions Summit 2012
11. The Brain Prize 2012 is presented May 9th
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:9/2/2014)... Air pollution regulations over the last decade in Taiyuan, ... there, accounting for a greater than 50% reduction in ... 2001 and 2010, according to researchers at the Columbia ... School of Public Health, the Shanxi Medical University, the ... and Shanghai Fudan University School of Public Health. , ...
(Date:9/2/2014)... In Bavaria, the Tithonian Konservat-Lagersttte of lithographic limestone ... discoveries of emblematic fossils from that area (for ... have found fossil insects in the French equivalent ... new species representing the oldest known water treader. ... equivalent Bavarian outcrops, fewer fossils have been obtained ...
(Date:9/2/2014)... stress in stride; others are done in by it. ... mechanisms of this so-called stress gap in mice with ... lead researchers to better understand the development of psychiatric ... each animal has unique experiences as it goes through ... can alter the expression of genes, and as a ...
Breaking Biology News(10 mins):Clean air halves health costs in Chinese city 2Exceptionally well preserved insect fossils from the Rhône Valley 2Discovery hints at why stress is more devastating for some 2Discovery hints at why stress is more devastating for some 3
... person, it triggers a series of biochemical reactions in immune-system ... , Usually, the result is an effective immune response, leading ... recovery. But in the case of some of the world’s ... as well as the influenza virus strain responsible for the ...
... homes have smoke detectors, cells have an enzyme that ... the production of a key molecule in the biochemical ... investigators at St. Jude Children's Research Hospital. This breakdown ... while reducing the chance that excess fatty acids will ...
... associated with a risk of developing type-2 diabetes have been ... research, published online in Nature, is the first time the ... detail. It should enable scientists to develop a genetic test ... type 2, commonly known as type-2 diabetes. , ...
Cached Biology News:New study may show how to forestall a fatal, virus-caused immune-system meltdown 2New study may show how to forestall a fatal, virus-caused immune-system meltdown 3Protein sensor for fatty acid buildup in mitochondria 2Breakthrough in understanding type-2 diabetes as key genes identified 2
(Date:9/2/2014)... Nanoparticles, engineered materials about a billionth of a meter ... are tiny, they can benefit human health, as in ... interfere with it through viruses, air pollution, traffic emissions, ... at Washington University in St. Louis, led by Lan ... in Electrical & Systems Engineering, and their collaborators at ...
(Date:9/2/2014)... 2014 Press attending the Project LIBERTY ... advantage of the people and events in Emmetsburg on ... available throughout the day. Additionally, we will do our ... DSM representatives as well as representatives from the local ... , Please remember to RSVP to Matt Merritt ...
(Date:9/2/2014)... , Sept. 2, 2014  Technology Applications International ... that its wholly-owned subsidiary Renuell Int,l, Inc. has signed ... and Space Administration ("NASA") at the Johnson Space Center ... See photos: tapplic.com/houstonphotos/ ... are very pleased to announce our latest, exclusive agreement ...
(Date:9/2/2014)... 2014 Orexigen Therapeutics, Inc. (Nasdaq: ... Trademark Office (PTO) has issued a patent related to ... loss. NB32 is a fixed-dose combination of naltrexone sustained ... No. 8,815,889 claims methods for treating insulin resistance using ... in 2024. If NB32 is approved for use in ...
Breaking Biology Technology:Engineers develop new sensor to detect tiny individual nanoparticles 2Engineers develop new sensor to detect tiny individual nanoparticles 3Press agenda for Project LIBERTY Grand Opening 2Press agenda for Project LIBERTY Grand Opening 3Press agenda for Project LIBERTY Grand Opening 4Press agenda for Project LIBERTY Grand Opening 5Technology Applications International Corporation Subsidiary Enters Into Additional Exclusive Agreement with NASA at a Signing Ceremony at the Johnson Space Center In Houston, Texas 2Technology Applications International Corporation Subsidiary Enters Into Additional Exclusive Agreement with NASA at a Signing Ceremony at the Johnson Space Center In Houston, Texas 3Orexigen Expands NB32 Intellectual Property Portfolio With New U.S. Patent 2Orexigen Expands NB32 Intellectual Property Portfolio With New U.S. Patent 3Orexigen Expands NB32 Intellectual Property Portfolio With New U.S. Patent 4
... through the brain cells offers new prospects to prevent the ... K.U. Leuven discovered that two main agents involved in the ... and the beta secretase enzyme (BACE1), follow a different path ... the eventual meeting between protein and enzyme that the basis ...
... not easy, especially for tiny nanowires: With no ... difficult to harness their full potential as effective ... Chemistry Faculty has found a way to grow ... providing, for the first time, the much-needed guidance ...
... researchers from the London Centre for Nanotechnology and the ... a technique to ,draw, superconducting shapes using an X-ray ... structures has implications for a completely new generation of ... a material conducts electricity with no resistance, meaning absolutely ...
Cached Biology Technology:Nanowires get into the groove 2Etch-a-sketch with superconductors 2
... EZ DNA Methylation Kit uses a simplified ... DNA methylation analysis. The kit is based ... place between cytosine and sodium bisulfite where ... DNA Methylation Kits innovative in-column desulphonation reaction ...
... EnzoLyte MG Phosphate Assay Kit is ... formed between Malachite Green, molybdate and free ... reaction can be conveniently measured on a ... reader. The non-radioactive colorimetric assay kits have ...
... of digital x-ray detectors from KUBTEC represents ... with 12 to 16 bit digital interface. ... photodiode array sensor with pixel spacing down ... in low x-ray energies (10-50 kV) and ...
... Arrays are intended for laboratory research use ... in neutral buffered formalin and embedded in ... performed by certified pathologists. Tissue cores ... relocated into a new recipient paraffin block, ...
Biology Products: