M12B Borsog borehole No20

General Information

Created: 2014-02-14 14:00:29
Modified: 2014-02-14 14:17:35

Active: No
TC-Code:M12b No20
Responsible Countries: Mongolia,
Timezone:UTC/GMT +08:00 hours
Vegetation Type:Grassland
Responsible Person:Natsagdorj Sharkhuu

Borehole code M12b No20?

Active layer thickness is 2.5 m. Thickness of permafrost is about 10-15 m.

MEAN ANNUAL GROUND TEMPERATURE AT OR NEAR DEPTH OF ZERO ANNUAL AMPLITUDE (°C) – report  value for most recent year or 12 month interval -0.42°C at a depth of 4.5 m in October 6

NAME AND LOCATION OF CLOSEST CLIMATE STATION (latitude, longitude, and distance from borehole, km) – provide (if available) mean monthly air temperature and snow depth of reporting interval for mean annual ground temperature. Hatgal station is located at a distance of 110 km from Dalbay. Additionally, Dalbay automatic meteorological station is located at a distance of 500 m from the borehole to the South East.

Depth:5 m
Drilling Angle:90 °
Drilling Method:Dry drilling. The borehole is cased by plastic and steel pipes in diameters of 32 and 40 mm, respectively.
Date Drilled:01. Nov 2004
Type:By local jeep (100 km from Hatgal)
Slope:3 °
Aspect:270 °
Permafrost Thickness:10 m
Permafrost Zone:Continuous
Vegetation:Poor grassy dry steppe.
Lithology:0-2.0 m fine sands. 2.0-3.3 m gravelly sands. 3.3-5.0 m clay.
Morphology:On west-facing gentle slope of Borsog river terrace.
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Bibliographic References

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Longitude:100.72858333 °
Latitude:50.9745 °
Elevation:66.52677155 m
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