Navigation Links
Discovery of Earth's northernmost perennial spring
Date:6/16/2014

Boulder, Colo., USA A Canadian team lead by Stephen Grasby reports the discovery of the highest latitude perennial spring known in the world. This high-volume spring demonstrates that deep groundwater circulation through the cryosphere occurs, and can form gullies in a region of extreme low temperatures and with morphology remarkably similar to those on Mars. The 2009 discovery raises many new questions because it remains uncertain how such a high-volume spring can originate in a polar desert environment.

Grasby and colleagues encountered the northernmost perennial spring in the world, which they have dubbed the Ice River Spring, on Ellesmere Island, Nunavut, Canadian High Arctic. The specific study area is north of Otto Fiord in a mountainous region underlain by carbonates of the Nansen Formation. The spring discharges at 300 m elevation from colluvium on a south-facing (21 incline) mountain slope. The unnamed mountain rises 800 m above sea level. Detailed recordings show that this spring flows year-round, even during 24 hours of darkness in the winter months, when air temperatures are as low as minus 50 degrees Celsius.

Detailed geochemistry shows that the waters originate from the surface and circulate down as deep as 3 km before returning through thick permafrost as a spring. This points to a much more active hydrogeological system in polar regions than previously thought possible, which is perhaps driven by glacial meltwater.

Another intriguing feature of the Ice River site is the remarkable similarity to mid-latitude gullies observed on Mars. The discovery of these features on Mars has led to suggestions that recent groundwater discharge has occurred from confined aquifers.


FEATURED ARTICLE
Deep groundwater circulation through the High Arctic cryosphere forms Mars-like gullies

Stephen E. Grasby et al., Geological Survey of Canada, Natural Resources Canada, 3303 33rd Street NW, Cal
'/>"/>

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. Discovery of a bud-break gene could lead to trees adapted for a changing climate
2. The transmission of information via proteins could revolutionize drug discovery
3. Scientists weed out pesky poison ivy with discovery of killer fungus
4. Amber discovery indicates Lyme disease is older than human race
5. Promising discovery in the fight against antibiotic-resistant bacteria
6. New discovery: Molecule links asthma and cancer and could aid in developing new treatments
7. Scientists at the UA make critical end-stage liver disease discovery
8. Autism Genome Project delivers genetic discovery
9. Mechanical forces driving breast cancer lead to key molecular discovery
10. New discovery finds missing hormone in birds
11. IDRI receives $3.4 million grant extension for TB drug discovery
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Discovery of Earth's northernmost perennial spring
(Date:8/22/2014)... first comprehensive study of captive black rhino reproduction ... the success of breeding programmes. , Researchers from ... University of Liverpool carried out a six-year study ... rhino. , Dr Katie Edwards led the research ... of Liverpool. She says: "Although some black rhinoceros ...
(Date:8/22/2014)... 2015, American consumers will finally be able to purchase ... touted as zero-emissions vehicles, most of the cars will ... fuel that contributes to global warming. , Now scientists ... that uses an ordinary AAA battery to produce hydrogen ... current through two electrodes that split liquid water into ...
(Date:8/21/2014)... toxins in past decade, GTA still violates Canada,s ... while the Greater Toronto Area (GTA) has significantly ... smog, the city continues to violate the Canada-wide ... cause or aggravate health problems such as asthma, ... set of complex photochemical reactions involving volatile organic ...
Breaking Biology News(10 mins):Hormone analysis helps identify horny rhinos 2Stanford scientists develop a water splitter that runs on an ordinary AAA battery 2Stanford scientists develop a water splitter that runs on an ordinary AAA battery 3Despite a significant reduction in smog-producing toxins, the Greater Toronto Area still violates Canada's standards for ozone air pollution 2
... Fourth Biennial Review, 2012 -- a new congressionally mandated ... in the Comprehensive Everglades Restoration Plan (CERP), a multibillion-dollar, ... the ecosystem,s decline while meeting growing demands for clean ... evaluation of CERP, which was launched in 2000 by ...
... in cellular DNA can trigger tumorigenesis. Researchers from ... structure of a protein involved in the repair ... throws new light on the origins of neurodegenerative ... as radiation or environmental toxins can cause double-stranded ...
... Digicel Pacific Limited, a mobile network operator across the Pacific ... deploying biometric enabled payment systems into stores in New Zealand ... way to send money home to the Pacific. ... register just once and record their fingerprint as permanent identification ...
Cached Biology News:Digicel Launches World's First Biometric Identification System For International Money Transfers 2Digicel Launches World's First Biometric Identification System For International Money Transfers 3
(Date:8/21/2014)... August 21, 2014 On Wednesday of last ... to use Redox Signaling molecules, became available for purchase in ... , "The way that RENU 28 works is, if you ... down of the rate of cellular renewal within your body. ... increasing of that rate of cellular renewal. What RENU 28 ...
(Date:8/20/2014)... history lessons often have it that American Indians largely ... chicken pox, influenza and tuberculosis brought to the New ... vary, about 20 million people lived in the Americas ... them were killed by European diseases., But new research ... University and Johannes Krause of the University of Tubingen ...
(Date:8/20/2014)... California (PRWEB) August 20, 2014 ... develop and apply the most complete climate and ... and demanding climate change issues. , Eight national ... forces with the National Center for Atmospheric Research, ... the new effort. Other participating national laboratories include ...
(Date:8/20/2014)... 2014 The 6th Annual Arrowhead ... on October 29-30 in San Francisco, CA. This year’s ... government researchers and clinicians focused on addressing and solving ... In the twelve years since the sequencing of the ... introduced with pharmacogenetic information in the label and molecular ...
Breaking Biology Technology:RENU 28 Skin Care Now Available in Australia and New Zealand 2Unusual discovery leads to fascinating tuberculosis theory 2Unusual discovery leads to fascinating tuberculosis theory 3New Project Is the ACME of Addressing Climate Change 2New Project Is the ACME of Addressing Climate Change 36th Annual Personalized and Precision Medicine Conference Bringing Together Thought Leaders to Discuss Clinical Implementation, Dx Reimbursement, Big Data, and Sequencing 2
... COLOGNE, Germany and ... has opened its seventh laboratory worldwide in Electronics City in,the ... and systems. The world,leader in independent safety and quality testing ... new solar test centre, which in particular will,offer services to ...
... team based at the University of Pittsburgh has received ... of Defense to tackle some of the most significant ... that could solve problems too complex for all of ... the Universe to crack. The project was one of ...
... AVANIR Pharmaceuticals, Inc. (Nasdaq: ... Annual Canaccord Genuity Growth Conference on Tuesday, August 10th at ... at the InterContinental Hotel in Boston .  The Canaccord Genuity Growth ... and industry leaders.   , , ...
Cached Biology Technology:New Test Centre in India: TUV Rheinland Continues Worldwide Investment Programme for Solar Industry 2New Test Centre in India: TUV Rheinland Continues Worldwide Investment Programme for Solar Industry 3Pitt-led researchers to build foundation for quantum supercomputers with $7.5 million federal grant 2AVANIR to Present at the Canaccord Genuity Growth Conference 2
Sequencing and primer design rolled into one. Just give us your clone and a reference sequence, and we'll do the rest. Single-strand or double-strand coverage. Guaranteed results....
... polyclonal antibody to human XAB2 (amino terminus) ... identified through its interaction with XPA. Immunoprecipitation ... of XAB2 interacts with the transcription-coupled repair-specific ... with RNA polymerase II. Microinjection experiments with ...
... provide custom microplate coating using advanced automated high throughput microplate ... formats. We can also accommodate virtually any lot size of ... , 8 and 12 ... 384 well microplate, ...
...
Biology Products: