Citation:

PANGAEA.919702

Name: Lithology and cryostructure of lithalsas in the Sentsa River valley (East Sayan, Siberia)
Published: 2020-07-01
License: https://creativecommons.org/licenses/by/4.0/
Keywords: East Sayan; frost heave; intrusive ice; Lithalsa; reticulate cryostructure; segregated ice; thick ice lens

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Keyword(s):

East Sayan; frost heave; intrusive ice; Lithalsa; reticulate cryostructure; segregated ice; thick ice lens

Supplement to:

Vasil'chuk, Yurij K; Alekseev, S V; Arzhannikov, Sergey G; Alekseeva, L P; Budantseva, Nadine A; Chizhova, Julia N; Arzhannikova, Anastasia V; Vasil'chuk, Alla Constantinovna; Kozyreva, E A; Rybchenko, A A; Svetlakov, A A (2015): Oxygen and Hydrogen Isotope Compositions of Lithalsa Frozen Core: A Case Study from the Sentsa River Valley, East Sayan. Earth's Cryosphere, 2(19), 46-58

Coverage:

Median Latitude: 52.663472 * Median Longitude: 99.499167 * South-bound Latitude: 52.663056 * West-bound Longitude: 99.497500 * North-bound Latitude: 52.663889 * East-bound Longitude: 99.500833

Minimum DEPTH, sediment/rock: 0.00 m * Maximum DEPTH, sediment/rock: 9.00 m

Event(s):

Se_14-1 * Latitude: 52.663889 * Longitude: 99.497500 * Location: Siberia, Russia

Se_14-2 * Latitude: 52.663056 * Longitude: 99.500833 * Location: Siberia, Russia

Comment:

This dataset contains data about theLithology and cryostructure of lithalsas in the Sentsa River valley (East Sayan).

Parameter(s):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Event label	Event		Vasil'chuk, Yurij K
2	Latitude of event	Latitude		Vasil'chuk, Yurij K
3	Longitude of event	Longitude		Vasil'chuk, Yurij K
4	Location	Location		Vasil'chuk, Yurij K
5	DEPTH, sediment/rock	Depth sed	m	Vasil'chuk, Yurij K	Geocode – from
6	DEPTH, sediment/rock	Depth sed	m	Vasil'chuk, Yurij K	Geocode – to
7	Sample comment	Sample comment		Vasil'chuk, Yurij K
8	Lithology/composition/facies	Lithology		Vasil'chuk, Yurij K
9	Cryostructures	Cryostruc		Vasil'chuk, Yurij K
10	Sample comment	Sample comment		Vasil'chuk, Yurij K	Sample specificity
11	Sample comment	Sample comment		Vasil'chuk, Yurij K	Lithalsa description

License:

Creative Commons Attribution 4.0 International (CC-BY-4.0)

Size:

55 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 Event	2 Latitude	3 Longitude	4 Location	5 Depth sed [m] (from)	6 Depth sed [m] (to)	7 Sample comment	8 Lithology	9 Cryostruc	10 Sample comment (Sample specificity)	11 Sample comment (Lithalsa description)
Se_14-1	52.6639	99.4975	Sentsa River valley (East Sayan), Buryatia, Siberia	0.00	0.80		Active layer of unfrozen dry light-gray silt: soil and plants in upper 5-10 cm and homogeneous sediments with sporadic vertical and oblique iron bands to 60 cm depth			Large lithalsa, 7 m high (site Se 14-1)
Se_14-1	52.6639	99.4975	Sentsa River valley (East Sayan), Buryatia, Siberia	0.80	2.00		Frozen dark-gray silt with uneven ice contents	Layered, lenticular	Ice lenses up to 10 mm thick in upper part and up to 15 mm at depth about 2 m	Large lithalsa, 7 m high (site Se 14-1)
Se_14-1	52.6639	99.4975	Sentsa River valley (East Sayan), Buryatia, Siberia	2.00	2.30		Pure white ice		lens ice with up to 2-3 mm air bubbles and sporadic 2-3 cm soil inclusions	Large lithalsa, 7 m high (site Se 14-1)
Se_14-1	52.6639	99.4975	Sentsa River valley (East Sayan), Buryatia, Siberia	2.30	2.80		Frozen dark-gray silt with uneven ice contents		Soil with blocks (to 10 mm) and lenses (to 5-8 mm) of ice	Large lithalsa, 7 m high (site Se 14-1)
Se_14-1	52.6639	99.4975	Sentsa River valley (East Sayan), Buryatia, Siberia	2.80	3.35		Pure transparent gray ice	Layered and reticulate	Ice with numerous round or oval gas bubbles; ice milky white from gas bubbles in trench left side; large pieces of soil visible through ice	Large lithalsa, 7 m high (site Se 14-1)
Se_14-1	52.6639	99.4975	Sentsa River valley (East Sayan), Buryatia, Siberia	3.35	6.30		Ice-soil material	Thick layered and suspended, locally basal; visible ice content 60-70 %; soil looks like a layered cake after thawing of ice layers	Ice with suspended soil blocks (dark gray silt); ice lenses 5-7 cm or locally up to 10 cm; soil layers 3-7 cm or locally up to 10 cm	Large lithalsa, 7 m high (site Se 14-1)
Se_14-1	52.6639	99.4975	Sentsa River valley (East Sayan), Buryatia, Siberia	6.30	7.70		Frozen yellowish-gray and bluish-gray clay silt	Massive or lenticular	Sporadic oblique or horizontal 1-2 mm ice lenses	Large lithalsa, 7 m high (site Se 14-1)
Se_14-1	52.6639	99.4975	Sentsa River valley (East Sayan), Buryatia, Siberia	7.70	9.00	Lake level	Talus			Large lithalsa, 7 m high (site Se 14-1)
Se_14-2	52.6631	99.5008	Sentsa River valley (East Sayan), Buryatia, Siberia	0.00	0.10		Dark-brown sod and peat			Small lithalsa, 3.0-3.5 m (site Se 14-2)
Se_14-2	52.6631	99.5008	Sentsa River valley (East Sayan), Buryatia, Siberia	0.20	0.60		Heavy-textured yellowish-gray silt (yellowish-whitish when dry)			Small lithalsa, 3.0-3.5 m (site Se 14-2)
Se_14-2	52.6631	99.5008	Sentsa River valley (East Sayan), Buryatia, Siberia	0.60	1.50		Brownish-gray clay silt	Medium cross-laminated within 1.0-1.8 m; lenticular-layered within 1.8-2.4 m; fine and medium lenticular within 2.1-2.4 m	Ice lenses, 0.3-0.5 cm; soil layers, 0.5-1.0 cm	Small lithalsa, 3.0-3.5 m (site Se 14-2)
Se_14-2	52.6631	99.5008	Sentsa River valley (East Sayan), Buryatia, Siberia	1.50	2.40		Brownish-gray clay silt	Reticulate	Ice lenses, 1-2 cm; soil layers, 1-3 cm; oblique ice lens about 5 cm thick between 2.6-2.7 m; thick horizontal ice lens within depths 3.47-3.52 m; tree trunks found in clay silt in 2011; bedrock clasts	Small lithalsa, 3.0-3.5 m (site Se 14-2)
Se_14-2	52.6631	99.5008	Sentsa River valley (East Sayan), Buryatia, Siberia	2.40	2.60		Frozen dark-gray and brownish gray fine and medium-grained plane-bedded sand; thin layers and nests of peat at the contact with clay silt; same sand underlying modern yellow alluvial sand, where top of dark-gray sand lies 1.8 m below	Reticulate and thin lenticular at sand contact		Small lithalsa, 3.0-3.5 m (site Se 14-2)