Posts in the category »   «  ( 27 Posts )

  • Paper: Using georadar and a mobile geoelectrics device to map shallow sediment distribution on a large scale

    [UPDATE 2017-05-14: The links now lead to the free version of the paper, available until 30 June.]

    Together with my colleagues I have published a new paper in which we describe a methodology for mapping the shallow architecture of large sedimentary basins with minimum effort and high resolution. We use two geophysical methods and combine them with point information from shallow drillings to identify different types of alluvial, fluvial, and aeolian sediments in the Orkhon Valley in Mongolia. We then show that our results fit well with a remote sensing approach. Although we did not target active faults in our study, the methodology is well suitable for detecting deformed/offset sediments without surface expression due to high erosion or sedimentation rates. That’s why I feel the study is of interest for the fault-hunting community. more

  • Paleoseismology field trip at the International Conference on Astronomy & Geophysics in Mongolia, 2017

    This meeting in Mongolia will include a very nice paleoseismological field trip! This is the conference website: http://www.iag.ac.mn/mn/index.php?pid=107 and here is the announcement:

    The Institute of Astronomy and Geophysics (IAG) of the Mongolian Academy of Sciences invites colleagues, geoscientists, researchers, and international experts from around the world to attend the “The International Conference on Astronomy & Geophysics in Mongolia, 2017” and we hope that you enjoy the scientific program and field-excursion, as well as the hospitality in capital Ulaanbaatar and field-excursions!
    The conference will have two sections. The main section will be held in Ulaanbaatar, the capital of Mongolia, between 20 and 22 July of 2017 including the celebration of 60th anniversary of IAG, plenary session, oral and poster sessions. The field section “Field-excursion to Mogod co-seismic fault rupture area” (1967/01/05, Mw=7.1) will be held at Mogod soum of Bulgan province, Mongolia between 23 and 26 July, 2017.

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  • New papers: L’Aquila, Balochistan EQ, tectonic geomorphology, geophysics in Mongolia

    After I came back from one week of holidays I checked the latest papers. Surprisingly, one was by myself! Finally IOP published our work on combined geoscience techniques in the Orkhon Valley, Central Mongolia. We used Georadar, SQUID-gradiometers, capacitive-coupled geoelectrics, octocopter stereoimages, shallow drillings, datings, and archaeological excavations for an geoarchaeological project. Using geophysical, archaeological and geological observations, we assumed a dating in the Turk/Uighur period (6th–9th century AD) and a re-use under Mongolian reign (12th–17th century AD). This would mean that this site is the furthermost walled structure in the peri-urban area of Khar Balgas. more