University of Oklahoma researchers are working with Chinese colleagues to better understand intraplate earthquakes—those occurring far from a tectonic plate boundary—in an effort to minimize the loss of life and property in both China and Oklahoma.
China holds the record for the deadliest earthquake with 830,000 casualties, even though the event occurred far from a tectonic plate boundary.
In recent months, a U.S. team of geophysicists led by OU professor Randy Keller of the ConocoPhillips School of Geology and Geophysics completed two large seismic projects jointly with Chinese colleagues that will advance the understanding of the cause of devastating intraplate earthquakes. This effort complements that of Keller's Oklahoma Geological Survey colleagues, whose work focuses on the intraplate region around Oklahoma.
During the first experiment in China, the team deployed 500 seismic recorders along a profile extending from near Beijing to Mongolia. OU is collaborating with the Chinese Academy of Geological Sciences to produce an image of the velocity of the earth down to a depth of about 40 miles. The effort was part of China's ambitious SinoProbe project—a comprehensive, five-year, eight-component geological and geophysical study of the lithosphere, the outer part of the Earth's surface.
In January, Keller and colleagues teamed with the Chinese Earthquake Administration and Chinese universities on the second experiment to deploy an array of seismographs in and around the city of Tangshan, which was destroyed by an earthquake in 1976. Tangshan sits on a fault, so the goal of this project is to establish new boundaries and determine earthquake hazards based on the new data. The team will use the data gathered to provide an image of the structure of the area to a depth of about 20 miles.
The seismic recorders employed on the project were instruments initially designed by Keller and others as part of a series of research grants. A $2M National Science Foundation grant to the University of Missouri and OU is providing some of the funding for Keller's team, however, the Chinese government funded most of the experiment costs in China. OU is continuing its collaboration with China by hosting a group of Chinese scientists and graduate students involved in processing, modeling and interpreting data collected during the two experiments.
Jana Smith | EurekAlert!
More than 100 years of flooding and erosion in 1 event
28.03.2017 | Geological Society of America
Satellites reveal bird habitat loss in California
28.03.2017 | Duke University
The Institute of Semiconductor Technology and the Institute of Physical and Theoretical Chemistry, both members of the Laboratory for Emerging Nanometrology (LENA), at Technische Universität Braunschweig are partners in a new European research project entitled ChipScope, which aims to develop a completely new and extremely small optical microscope capable of observing the interior of living cells in real time. A consortium of 7 partners from 5 countries will tackle this issue with very ambitious objectives during a four-year research program.
To demonstrate the usefulness of this new scientific tool, at the end of the project the developed chip-sized microscope will be used to observe in real-time...
Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.
The results will be published on March 22 in the journal „Astronomy & Astrophysics“.
Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...
Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.
Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...
In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.
Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...
20.03.2017 | Event News
14.03.2017 | Event News
07.03.2017 | Event News
28.03.2017 | Life Sciences
28.03.2017 | Information Technology
28.03.2017 | Physics and Astronomy