Navigation Links
Rapid climate changes, but with a 120 year time lag
Date:12/4/2013

Regional climate changes can be very rapid. A German-British team of geoscientists now reports that such a rapid climate change occurred in different regions with a time difference of 120 years. Investigation in the west German Eifel region and in southern Norway demonstrated that at the end of the last glaciation about 12,240 years before present climate became warmer, first recognised in the Eifel region and 120 years later in southern Norway. Nonetheless, the warming was equally rapid in both regions.

The team around Christine Lane (Oxford University) and Achim Brauer from the GFZ German Research Centre for Geosciences reports in the latest volume of "Geology" (vol 41, no 12, p. 1251) that within the younger Dryas, the last about 1100-year long cold phase at the end of the last ice age, a rapid warming first was measured in the Eifel region. Sediment cores from the Meerfelder Maar lake depict a typical deposition pattern, which was also found in the sediments of Lake Krakenes in southern Norway, but with a time lag of 120 years.

But how did the researcher revealed such a accurate time marking? "12 140 years ago a major eruption of the Katla volcano occurred on Iceland" explains Achim Brauer. "The volcanic ash was distributed by strong winds over large parts of northern and central Europe and we can find them with new technologies as tine ash particles in the sediment deposits of lakes. Through counting of annual bands in these sediments we could precisely determine the age of this volcanic ash." Therefore, this ash material reflects a distinct time marker in the sediments of the lakes in the Eifel and in Norway.

Furthermore, lake sediments are very accurate climate archives, especially when they contain seasonal bands similar like tree rings. "It is a diligent piece of work to count and analyse thousands of these thin layers under the microscope to reconstruct climate year-by-year far back in time", illustrates Brauer.

The ash of th
'/>"/>

Contact: F.Ossing
ossing@gfz-potsdam.de
49-331-288-1040
GFZ GeoForschungsZentrum Potsdam, Helmholtz Centre
Source:Eurekalert

Page: 1 2

Related biology news :

1. Rapid method of assembling new gene-editing tool could revolutionize genetic research
2. Researchers develop rapid test strips for bacterial contamination in swimming water
3. Virus barcodes offer rapid detection of mutated strains
4. Speeding up drug discovery with rapid 3-D mapping of proteins
5. Key part of plants rapid response system revealed
6. Genetic link to rapid weight gain from antipsychotics discovered
7. UCLA research makes possible rapid assessment of plant drought tolerance
8. Triage for plants: NYBG scientists develop and test rapid species conservation assessment technique
9. Research finds heart remodeling rapidly follows cardiac injury
10. Rapid response in cases of smoke poisoning
11. Researchers develop rapid method to measure carbon footprints
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:8/20/2014)... E. Fox, a John and Rebecca Moores Professor of Biology ... a fellow in the International Society for the Study of ... of four members two from the U.S., one from ... 2014. Fellows are elected every three years, and 36 have ... more than 20 countries, the ISSOL includes researchers from disciplines ...
(Date:8/20/2014)... finds life can persist in a cold, dark world. ... team that examined waters and sediments from a shallow ... the extreme environment supports microbial ecosystems. , The ... colleagues has implications for life in other extreme environments, ... findings are published in the current edition of the ...
(Date:8/20/2014)... of the Para and Mato Grosso states of Brazil. ... in order to deforest the land. Deforestation is the ... the land is thereafter converted to a nonforest use. ... ranches, or urban use. The herringbone-patterned tan lines cutting ... the middle of the image are evidence of deforestation ...
Breaking Biology News(10 mins):UH professor named fellow by International Astrobiology Society 2University of Tennessee research uncovers subglacial life beneath Antarctic ice sheet 2
... children with autism have a wide range of genetic ... genetic test to identify the disorder. Now, University of ... in the facial features and brain structures of children ... to develop a formula for earlier detection of the ...
... Woods Institute for the Environment has awarded five faculty ... that help solve the world,s urgent demands for fresh ... and well-being, yet in poor countries more than a ... and more than 2 billion lack basic sanitation facilities," ...
... and marrow transplant physician Naynesh Kamani, MD ... new national clinical trial of unrelated donor marrow and ... cell disease . Children,s National will join more than ... clinical trial of this treatment. If successful, the Sickle ...
Cached Biology News:Researchers study facial structures, brain abnormalities to reveal formula for detection of autism 2New planning grants to fund research on freshwater issues 2New planning grants to fund research on freshwater issues 3Children's national co-leads nationwide study of landmark sickle cell treatment 2
(Date:8/20/2014)... that American Indians largely were wiped out by diseases ... brought to the New World by European explorers., One ... lived in the Americas shortly before Europeans arrived, and ... diseases., But new research led by anthropological geneticists Anne ... the University of Tubingen in Germany indicates the diagnosis ...
(Date:8/20/2014)... 2014 High performance computing (HPC) ... most complete climate and Earth system model to ... issues. , Eight national laboratories, including Lawrence ... Center for Atmospheric Research, four academic institutions and ... participating national laboratories include Argonne, Brookhaven, Lawrence Berkeley, ...
(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 ...
(Date:8/20/2014)... health of your heart, researchers have discovered. , A ... TENS machine like those designed to relieve labour pains ... raised flap at the front of the ear immediately ... changed the influence of the nervous system on the ... failing hearts too hard. , Professor Jim Deuchars, Professor ...
Breaking Biology Technology:Unusual 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'Tickling' your ear could be good for your heart 2
... Minimally Invasive Treatment of Bone Fractures Achieves Significant ... Feb. 23 IlluminOss Medical Inc., a medical ... Stabilization System for orthopedic surgery, today announced that ... Registration issued by BSI (British Standards Institute). ...
... February 23 Health Robotics and Can-Med,today ... agreement whereby Can-Med,has acquired the exclusive distribution ... Georgia, Kazakhstan, Uzbekistan, Azerbaijan,Iran, Mongolia, Turkmenistan, Kyrgyzstan, ... only automated, point-of-care-distributed, and fail-safe,robotic system for ...
... YORK, Feb. 23 NeoStem, Inc. (NYSE Alternext ... processing and long-term storage of adult stem cells ... signed a license agreement to obtain the exclusive ... applications for cosmetic facial and body procedures and ...
Cached Biology Technology:IlluminOss Medical Receives ISO 13485 Certification 2Health Robotics Expands i.v.STATION(TM) Partnership With Can-Med in 10 Countries Within Central Asia 2Health Robotics Expands i.v.STATION(TM) Partnership With Can-Med in 10 Countries Within Central Asia 3NeoStem Obtains Exclusive Worldwide License to Innovative Stem Cell Technology and Applications for Anti-Aging Skin Rejuvenation Therapies 2NeoStem Obtains Exclusive Worldwide License to Innovative Stem Cell Technology and Applications for Anti-Aging Skin Rejuvenation Therapies 3
... Inhibitor is a potent noncompetitive ... as RNase A. Like other ... Inhibitor is an acidic protein ... kDa. RNaseOUT inhibits RNase A ...
... (Chemical Inkjet Printer) is a revolutionary ... and Protein Macroarray Analysis, developed in ... The strategy compliments established protocols in ... the proteins isoelectric point and apparent ...
... Ribonuclease Inhibitors have broad spectrum RNase inhibitory ... of the neutral type (1). The 50kDa ... binding to RNases in a 1:1 ratio. ... RNasin Ribonuclease Inhibitor to RNase (e.g., RNase ...
... BIOLASE Core Kit contains all ... polymerase assays on a wide ... addition to dNTPs, the Core ... widely used BIOLASE DNA polymerase, ...
Biology Products: