Seawater lithium isotopes (δ7Li) record changes over Earth history, including a ~9‰ increase during the Cenozoic, which is interpreted as the reflection of either a change in continental silicate weathering rate or weathering ...
Earth Sciences
Jun 23, 2022
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Southeastern Tibet is one of the most glaciated regions on the Tibetan Plateau both at present and during the Quaternary. Numerical dating of glacial deposits has allowed the establishment of a provisional chronology of Quaternary ...
Earth Sciences
Apr 19, 2021
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5
Formation pressure governs the generation, expulsion, migration, accumulation and preservation of petroleum. Fluid-rock interactions during diagenesis and mineralization are also affected by the formation pressure. Thus, ...
Earth Sciences
Apr 1, 2020
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One year ago, a historic flood struck Nebraska, topping levees; taking out bridges, dams and houses; covering thousands of acres in water; and reminding Nebraskans of the power of a raging river.
Environment
Mar 12, 2020
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5
Loss of water from rocks during drought caused California's Sierra Nevada to rise nearly an inch (2.5 centimeters) in height from October 2011 to October 2015, according to a new NASA study made public Wednesday.
Earth Sciences
Dec 13, 2017
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16
An unprecedented record of erosion rates dating back millions of years shows a significant time-lag between tectonic uplift and maximum erosion rates in the Argentine Precordillera mountains. According to a new study by an ...
Earth Sciences
Jul 19, 2016
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5
(Phys.org)—A trio of researchers, two with the Swiss Federal Institute of Technology and the other with Ben-Gurion University of the Negev, claim to have found evidence that suggests low-relief mountain surfaces are due ...
Scientists studying ancient species migration believe northern birds had the ability to colonise continents that southern species lacked. The research, published in Ecography, reveals how the ancient 'land bridge' of Panama, ...
Plants & Animals
Jul 13, 2010
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0
The Northeastern part of the present-day Qinghai-Tibet region had a higher elevation than the Southwestern part until the earliest Miocene, i.e., circa 23 million years ago. Thereafter, two phases (12-8 and 5 million years ...
Earth Sciences
Jan 14, 2009
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