Mackens, Sonja; Klitzsch, Norbert; Grützner, Christoph (2011): Geophysical mapping of the sediment architecture in the Orkhon Valley, Mongolia [dataset]. Rheinisch-Westfälische Technische Hochschule Aachen, PANGAEA, https://doi.org/10.1594/PANGAEA.755563
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Ground penetrating radar (GPR) and capacitive coupled resistivity (CCR) measurements were conducted in order to image subsurface structures in the Orkhon Valley, Central Mongolia. The data are extended by information from drill cores to the entire transects distinguishing different sedimentary environments in the valley. The Orkhon Valley is part of the high sensitive Steppe region in Central Mongolia, one of the most important cultural landscapes in Central Asia. There, archaeological, geoarchaeological and sedimentological research aims to reconstruct the landscape evolution and the interaction between man and environment during the last millennia since the first settlement. In May 2009 and 2010 geophysical surveys have been conducted including transects with lengths between 1.5 and 30 km crossing the entire valley and a kilometre-scaled grid in the southern part of the investigation area.
The geoelectrical and GPR data revealed the existence of two layers characterized by different resistivity values and radar reflectors. The two layers do not only represent material contrasts, but also reflect the influence of sporadic permafrost which occurs in several areas of Mongolia. The results help to reconstruct the evolution of the braided Orkhon River and therefore give important hints to understand the environmental history of the Orkhon Valley.
Related to:
Mackens, Sonja (2010): Kombination von Kapazitiver Geoelektrik und Georadar zur Bestimmung der Sedimentarchitektur im Orchontal, Mongolei [thesis]. Diploma Thesis, Applied Geophysics and Geothermal Energy, E.ON Energy Research Center and Rheinisch-Westfälische Technische Hochschule (RWTH) Aachen, 167 pp, hdl:10013/epic.36485.d001
Coverage:
Median Latitude: 47.407026 * Median Longitude: 102.753805 * South-bound Latitude: 47.221755 * West-bound Longitude: 102.540069 * North-bound Latitude: 47.733002 * East-bound Longitude: 102.888472
Date/Time Start: 2009-05-12T10:00:00 * Date/Time End: 2010-05-08T17:00:00
Event(s):
Transect_A * Latitude Start: 47.624957 * Longitude Start: 102.562380 * Latitude End: 47.652217 * Longitude End: 102.590845 * Date/Time Start: 2009-05-20T10:00:00 * Date/Time End: 2009-05-20T17:00:00 * Location: Orkhon Valley, Central Mongolia * Method/Device: Geophysics (GEOP) * Comment: Length: 4 km
Transect_B * Latitude Start: 47.532677 * Longitude Start: 102.540069 * Latitude End: 47.386693 * Longitude End: 102.852780 * Date/Time Start: 2009-05-12T10:00:00 * Date/Time End: 2009-05-14T17:00:00 * Location: Orkhon Valley, Central Mongolia * Method/Device: Geophysics (GEOP) * Comment: Length: 30 km
Transect_C * Latitude Start: 47.226270 * Longitude Start: 102.798995 * Latitude End: 47.221755 * Longitude End: 102.844277 * Date/Time Start: 2010-05-05T10:00:00 * Date/Time End: 2010-05-05T13:00:00 * Location: Orkhon Valley, Central Mongolia * Method/Device: Geophysics (GEOP) * Comment: Length: 3.5 km
Comment:
Raw data (*.bin, *.stn files): time, position and magnetic field data are stored in DataMapper G-858 compressed binary format for maximum use of available RAM. Transmitted binary data is stored in a binary file with the extension *.bin. This file requires about 100 kB of hard disk storage per hour of collection (at 10 readings per second). The *.stn file has ASCII format. You can create this file at any point in your analysis and can be viewed with any text editor. Most editing functions can be accomplished with the Magmap program, see MagMapp2000 hdl:10013/epic.36486.d001.
This work was part of the BMBF funded Mongolian-German multidisciplinary project: "Geo-Archaeology in the Steppes - Reconstruction of Cultural Landscapes in the Orkhon Valley, Central Mongolia" directed by Prof. Dr. Jan Bemmann, see http://www.vfgarch.uni-bonn.de/forschung-1/aktuelle-projekte/geoarchaeologie-in-der-steppe (link) or hdl:10013/epic.36487.d001 (web pages archived as pdf).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Latitude of event 2 | Latitude 2 | ||||
| 5 | Longitude of event 2 | Longitude 2 | ||||
| 6 | Date/Time of event | Date/Time | ||||
| 7 | Date/Time of event 2 | Date/Time 2 | ||||
| 8 | Comment of event | Comment | ||||
| 9 | Uniform resource locator/link to file | URL file | Mackens, Sonja | Capacitive geoelectrics | track: x, y-coordinates in UTM, WGS84 [m], distance [m]; for *.bin and *.stn files see comment | |
| 10 | Uniform resource locator/link to file | URL file | Mackens, Sonja | Ground-penetrating radar (GPR) | track: longitude, latitude, altitude [feet], date, time; tab-delimited ASCII | |
| 11 | Uniform resource locator/link to sgy data file | URL sgy | Mackens, Sonja | Ground-penetrating radar (GPR) | sgy-format | |
| 12 | Uniform resource locator/link to graphic | URL graphic | Mackens, Sonja | overview graphs of geophysical profiles as pdf |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
36 data points