The hydrogen isotopic composition (δD) of leaf wax long-chain n-alkanes from lacustrine sediments has been widely applied to reconstruct terrestrial paleoclimatic and paleohydrological changes. However, few studies have ...
Environment
Apr 26, 2018
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7
As technology advances, demands for tellurium, a rare element, are on the rise. Some forms of tellurium are toxic, so as the element finds applications in solar panels, rubber production, electronics and more, researchers ...
Environment
Apr 25, 2018
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11
Signs of a 1755 earthquake that was strong enough to topple steeples and chimneys in Boston can be seen in a sediment core drawn from eastern Massachusetts' Sluice Pond, according to a new report published in Seismological ...
Earth Sciences
Mar 27, 2018
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155
Fields, streets and cities, but also forests planted in rank and file, and dead straight rivers: humans shape nature to better suit their purposes, and not only since the onset of industrialization. Such influences are well ...
Environment
Feb 26, 2018
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60
By analyzing sediment cores from Chilean lakes, an international team of scientists discovered that giant earthquakes reoccur with relatively regular intervals. When also taking into account smaller earthquakes, the repeat ...
Earth Sciences
Jan 30, 2018
4
172
DNA molecules in lake sediment are few and hard bound to particles. This resulted in challenging analyses and required development of new methods, both for extracting sufficiently clean DNA and for the statistical analysis ...
Evolution
Sep 20, 2017
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5
The extent and depth of lakes in glaciated regions of North America are controlled by climate and the influence of differential isostatic rebound of the land's surface that began when Pleistocene ice melted from the continent. ...
Earth Sciences
Aug 9, 2017
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7
During the last glacial period - when the ice in the Antarctic was far thicker and extended further offshore than it does today - it has been speculated that subglacial lakes existed beneath it. An international team of researchers ...
Earth Sciences
Jun 1, 2017
0
141
Geochemical fingerprinting links microscopic ash found on the bottom of a Svalbard lake to a volcanic event happening 7000 years ago and 5000 km away.
Earth Sciences
May 22, 2017
0
7
The sediments of Lake Van in Eastern Anatolia (Turkey) are a valuable climate archive. Now, using the salinity measured in sediment porewater, scientists have reconstructed the huge lake-level fluctuations that occurred over ...
Earth Sciences
May 16, 2017
0
8
