Navigation Links
Mistaken point, Sanctuary of Zeus, catastrophic outburst floods, shocked sand grains
Date:2/20/2014

n 3 Feb. 2014; http://dx.doi.org/10.1130/B30911.1.

The results presented in this paper by Patrick Lajeuesse reveal for the first time that many large river and lake valleys of northeastern North America are underlain by deep bedrock inner gorges and V-shaped valleys. Geological evidence provided by excavation and drilling work at many dam sites as well as seismic data collected on lakes and at river mouths indicates that these deep bedrock trenches were not eroded by glaciers, but were rather incised by streams or rivers that flowed before the ice ages when sea level was much lower than today. These valley profiles share striking similarities with those of many fjord-lakes of other glaciated landscapes, suggesting that many other valleys previously interpreted as glacial in origin may in fact enclose preserved preglacial fluvial channels at their bottom. Because they have survived glacial erosion beneath the Laurentide Ice Sheet through successive glaciations, valleys of northeastern North America have a great potential for containing a long term record of sedimentation and environmental change. During glacial episodes, these fluvial valleys also formed preferential pathways that influenced glacial ice flow and the delivery of sediments to ocean basins.


Replacement origin for hematite in 2.5 Ga banded iron formation: Evidence for postdepositional oxidation of iron-bearing minerals
Birger Rasmussen et al., Department of Applied Geology, Curtin University, Kent St, Bentley WA 6102, Australia. Posted online ahead of print on 3 Feb. 2014; http://dx.doi.org/10.1130/B30944.1.

Banded iron formations (BIFs) are widely used to infer early microbial processes and the composition of the ancient ocean. Those inferences are based on assumptions of the mineralogy of the original sediment and how it was de
'/>"/>

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

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

Related biology news :

1. Endangered bats find sanctuary in Israeli ghost bunkers
2. NOAA: Underwater noise decreases whale communications in Stellwagen Bank sanctuary
3. Sanctuary chimps show high rates of drug-resistant staph
4. Olympic Coast Sanctuary report is first step in addressing effects of climate change
5. Research reveals bottom feeding techniques of tagged humpback whales in Stellwagen Bank Sanctuary
6. A new species of Oak hidden away in the greenery of Ton Pariwat Wildlife Sanctuary
7. UEA research reveals catastrophic loss of Cambodias tropical flooded grasslands
8. Catastrophic climatic events leave corals facing a decade-long fight for recovery
9. Study documents catastrophic collapse of Saharas wildlife
10. New system to restore wetlands could reduce massive floods, aid crops
11. Shell-shocked crabs can feel pain
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:7/11/2014)... researchers at the National Institute of Standards and ... their work more effectively, they often prove that ... was the case recently for M. Lorna De ... the growing specialization of glycomics. Glycomics is the ... glycans that are attached to proteins and lipids ...
(Date:7/11/2014)... from The Chinese University of Hong Kong, BGI and ... linked to salt tolerance, with implication for improving this ... published online in Nature Communications provides an ... improvement. , Soybean is an important crop for the ... have less genetic diversities than their wild counterparts. Among ...
(Date:7/11/2014)... 3, 2014, Shenzhen, China Researchers from Salk Institute ... the first time evaluated the safety and reliability ... successfully developed a new method, TALEN-HDAdV, which could ... stem cell (hiPSC). This study published online in ... theoretical foundation for stem cell-based gene therapy. , ...
Breaking Biology News(10 mins):BGI reports a novel gene for salt tolerance found in wild soybean 2A new genome editing method brings the possibility of gene therapies closer to reality 2
... JUPITER, FL, October 26, 2010 The Scripps Research Institute ... Fox Foundation to study a pair of genetic mutations that ... for Parkinson,s disease, a progressive and fatal neurodegenerative disorder. ... director for drug discovery at Scripps Florida, is the principal ...
... the brain, which scavenge pathogens and damaged neurons, are also ... by Duke neuroscientists. Earlier studies by Staci Bilbo, an ... rats experiencing an infection at an early age have an ... learning and memory. In a study published in ...
... has a companion among emerging futuristic "e-sensing" devices intended ... is a "magnetic tongue" -- a method used to ... sweet, bitter, sour, etc. A report on use of ... Journal of Agricultural and Food Chemistry . ...
Cached Biology News:Scripps Research scientist awarded $500,000 grant to study Parkinson's disease 2Scripps Research scientist awarded $500,000 grant to study Parkinson's disease 3Source found for immune system effects on learning, memory 2Source found for immune system effects on learning, memory 3
(Date:7/10/2014)... July 10, 2014 Research and Markets ... the "International Photonic Integrated Circuit (Monolithic Integration, ... 2019" report to their offering. ... concept of photonic integration traces its roots in ... promise of photonic integration went unexplored and unfulfilled ...
(Date:7/10/2014)... of Adelaide research may help in the fight against ... detect tiny quantities of explosives with the use of ... journal Sensors and Actuators B: Chemical , the ... detect explosives in concentrations as low as 6.3 ppm ... only a few minutes. , "Traditionally explosives detection has ...
(Date:7/10/2014)... has been extremely challenging because there are many genetic ... cause disease. Now investigators reporting in the July 3rd ... Cell describe a strategy that may help reveal ... factors or environmental exposures to affect the development of ... that may predispose individuals to schizophrenia. , The ...
(Date:7/10/2014)... upside down forever. Nanophysics makes sure of that. Mechanics researchers ... published in Physical Review E . Knowledge that can ... seem to be able to sit still forever, and walk ... We will soon be able to buy smart new fasteners ... the fact is, sooner or later the grip is lost, ...
Breaking Biology Technology:International Photonic Integrated Circuit (Monolithic Integration, Hybrid Integration, Module Integration) Market - Forecasts to 2019 2Detecting trace amounts of explosives with light 2New strategy could uncover genes at the root of psychiatric illnesses 2Even geckos can lose their grip 2
... CARLOS, Calif., Jan. 5 Nektar Therapeutics,(Nasdaq: ... Robin, is,scheduled to present at the upcoming 27th Annual ... St. Francis Hotel on Tuesday,January 13, 2009 at 10:00 ... The presentation will be accessible via ...
... ... (PRWEB) December 17, 2008 -- Facilitating the entry of ... analyzer, now updated to effortlessly examine not only the wireless interface ... but also the interface between the device CPU and the Bluetooth ...
... /PRNewswire-FirstCall/ - YM BioSciences Inc. (NYSE Alternext ... identifies, develops and commercializes differentiated products for ... received clearance from Canadian regulatory authorities to ... for nimotuzumab, its EGFR-targeting antibody, in combination ...
Cached Biology Technology:Newly Available To Medical Device Manufacturers - Bluetooth Testing Equipment 2Newly Available To Medical Device Manufacturers - Bluetooth Testing Equipment 3YM BIOSCIENCES RECEIVES CLEARANCE TO INITIATE RANDOMIZED DOUBLE-BLIND CLINICAL TRIALS OF NIMOTUZUMAB IN LUNG CANCER AND BRAIN METASTASES FROM LUNG CANCER 2YM BIOSCIENCES RECEIVES CLEARANCE TO INITIATE RANDOMIZED DOUBLE-BLIND CLINICAL TRIALS OF NIMOTUZUMAB IN LUNG CANCER AND BRAIN METASTASES FROM LUNG CANCER 3YM BIOSCIENCES RECEIVES CLEARANCE TO INITIATE RANDOMIZED DOUBLE-BLIND CLINICAL TRIALS OF NIMOTUZUMAB IN LUNG CANCER AND BRAIN METASTASES FROM LUNG CANCER 4YM BIOSCIENCES RECEIVES CLEARANCE TO INITIATE RANDOMIZED DOUBLE-BLIND CLINICAL TRIALS OF NIMOTUZUMAB IN LUNG CANCER AND BRAIN METASTASES FROM LUNG CANCER 5YM BIOSCIENCES RECEIVES CLEARANCE TO INITIATE RANDOMIZED DOUBLE-BLIND CLINICAL TRIALS OF NIMOTUZUMAB IN LUNG CANCER AND BRAIN METASTASES FROM LUNG CANCER 6YM BIOSCIENCES RECEIVES CLEARANCE TO INITIATE RANDOMIZED DOUBLE-BLIND CLINICAL TRIALS OF NIMOTUZUMAB IN LUNG CANCER AND BRAIN METASTASES FROM LUNG CANCER 7