Navigation Links
Scientists discover link between climate change and ocean currents over 6 million years
Date:6/12/2014

Scientists have discovered a relationship between climate change and ocean currents over the past six million years after analysing an area of the Atlantic near the Strait of Gibraltar, according to research published today (Friday, 13 June) in the journal Science.

An expedition of scientists, jointly led by Dr Javier Hernandez-Molina, from the Department of Earth Sciences at Royal Holloway, University of London, examined core samples from the seabed off the coast of Spain and Portugal which provided proof of shifts of climate change over millions of years.

The team also discovered new evidence of a deep-earth tectonic pulse in the region, as well as thick layers of sand within mountains of mud in a vast sheet, spreading out nearly 100km into the Atlantic from the Gibraltar gateway. The quantity of sand is far more than was expected and has been caused by the strength, speed and long duration of bottom currents flowing through the Strait of Gibraltar from the Mediterranean.

"The sediments we examined show various shifts of climate change over millions of years", Dr Hernandez-Molina said. "In addition, our findings could herald a significant shift in future targets for oil and gas exploration in deep-water settings. The thickness, extent and properties of these sands make them an ideal target in places where they are buried deep enough to allow for the trapping of hydrocarbons. The sand is especially clean and well sorted and therefore very porous and permeable."

The expedition, carrying an international team of 35 scientists from 14 countries, recovered 5km of core samples from an area along the Gulf of Cadiz and west of Portugal.

The research found that a powerful cascade of Mediterranean water spilling into the Atlantic was scouring the rocky seafloor, carving deep-sea channels and building up mountains of mud. This is due to Mediterranean water being saltier than the Atlantic and therefore denser, causing it to plunge downwards.

Dr Hernandez-Molina added: "We set out to understand how the Strait of Gibraltar acted first as a barrier and then a gateway over the past six million years. The fascinating results we came back with have hugely increased our understanding of the Mediterranean Outflow Water (MOW) that flows through the Gibraltar gateway and have led to some key discoveries about the relationship between climatic shifts, deep-water circulation and plate tectonic events over a huge timescale."
'/>"/>

Contact: Paul Teed
paul.teed@rhul.ac.uk
07-818-014-167
Royal Holloway, University of London
Source:Eurekalert  

Related biology news :

1. Scientists closing in on new obesity drug
2. Scientists weed out pesky poison ivy with discovery of killer fungus
3. Popular regional science meeting to bring hundreds of scientists to UC Riverside
4. Guidelines needed for creating germ cells in vitro, Cornell, JAX scientists state
5. Scientists unravel the genetic secrets of natures master of mimicry
6. Scientists reveal details of calcium safety-valve in cells
7. Deadly diseases overlooked for too long, scientists say
8. Scientists find new targets that could increase effectiveness of breast cancer treatments
9. Scientists discover the basis of allergic reactions
10. MU scientists successfully transplant, grow stem cells in pigs
11. Scientists capture most detailed images yet of humans tiny cellular machines
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Scientists discover link between climate change and ocean currents over 6 million years
(Date:4/18/2017)... SUNNYVALE, Calif. , April 18, 2017  Socionext Inc., a ... prototype of a media edge server, the M820, which features the ... face recognition software provided by Tera Probe, Inc., will be showcased ... and at the NAB show at the Las Vegas ... ...
(Date:4/11/2017)... GARDENS, Fla. , April 11, 2017 /PRNewswire/ ... management and secure authentication solutions, today announced that ... by Intelligence Advanced Research Projects Activity (IARPA) to ... IARPA,s Thor program. "Innovation has been ... and IARPA,s Thor program will allow us to ...
(Date:4/6/2017)... Forecasts by Product Type (EAC), ... End-Use (Transportation & Logistics, Government & Public Sector, Utilities ... Generation Facility, Nuclear Power), Industrial, Retail, Business Organisation (BFSI), ... you looking for a definitive report on the $27.9bn ... ...
Breaking Biology News(10 mins):
(Date:10/11/2017)... (PRWEB) , ... October 11, 2017 , ... ... Administration (FDA) has granted orphan drug designation to SBT-100, its novel anti-STAT3 (Signal ... the treatment of osteosarcoma. SBT-100 is able to cross the cell membrane and ...
(Date:10/10/2017)... DALLAS , Oct. 10, 2017 International research firm ... IoT Strategy, will speak at the TMA 2017 Annual Meeting , ... key trends in the residential home security market and how smart safety ... ... "The ...
(Date:10/9/2017)... ... , ... The award-winning American Farmer television series will feature 3 Bar Biologics ... at 8:30aET on RFD-TV. , With global population estimates nearing ten billion people ... to feed a growing nation. At the same time, many of our valuable resources ...
(Date:10/7/2017)... Seattle, WA (PRWEB) , ... ... ... the industry leader in Hi-C-based genomic technologies, launched its ProxiMeta™ Hi-C metagenome ... the ProxiMeta Hi-C kit and accompanying cloud-based bioinformatics software to perform Hi-C ...
Breaking Biology Technology: