Klocka Bog, Jämtland, Sweden
If resolution of the map above is poor, you can select another basemap by clicking on the left hand + symbol.
This page contains the results of your search. It is divided into two sections. The first contains information about any tephra layers present at the site and the second part contains details about the source references and the date and time of the search.
Your search has found 6 Tephra layers at Klocka Bog
| Site Type | Area | Latitude | Longitude | Grid reference | Altitude (m) |
|---|---|---|---|---|---|
| Terrestrial | Sweden, Jämtland | 63.3083°N | 12.4833°E | 526 |
| Profile | Tephra Layer | ||||||||
| No | Name | Total Profile Depth (m) | Type | Correlated name1 | Local name2 | Tephra Depth (m) | Comments | Geochemical data | Ref |
| 1361 | Profile 1 | 2.32 | Russian corer - 7.5 cm wide | ||||||
| Askja 1875 Tephra | Klocka P1 3-4 | 0.030 - 0.040 | (*Cryptotephra) | 1794 | |||||
| Hekla S Tephra | Klocka P1 80 | 0.800 - 0.810 | Peak concentration of ca. 3000 shards >20 mm cm^3 (*Cryptotephra) | View Data | 1794 | ||||
| Hekla 4 Tephra | Klocka P1 92 | 0.910 - 0.920 | Peak concentration of ca. 2500 shards >20 mm/cm^3 (*Cryptotephra) | View Data | 1794 | ||||
| Lairg A Tephra | Klocka P1 173 | 1.720 - 1.730 | Colourless glass shards (*Cryptotephra) | View Data | 1794 | ||||
| 1362 | Profile 2 | 2.36 | Contiguous monoliths (20 x 6 x 6 cm) from freshly cleaned section | ||||||
| Hekla 3 Tephra | Klocka P2 27-28 | 0.270 - 0.280 | (*Cryptotephra) | View Data | 1794 | ||||
| Klocka P2 195 | 1.940 - 1.950 | Possibly Lairg A, but not analysed. Colourless glass shards (*Cryptotephra) | 1794 | ||||||
Notes
*Note that the Tephra layer depth of a cryptotephra does not indicate the thickness of the layer, as in a visible tephra tephra layer. The thickness indicates the spread of the tephra shards in the sediment or sometimes the top and bottom depths are the same (i.e. no apparent thickness).
1Correlated tephra name means that the tephra deposit has been correlated with a tephra horizon found at multiple sites (e.g. Hekla 4). Of course, these correlations could be reinterpreted and care needs to be taken.
2Local tephra name is the name given by the researchers for the tephra found at the site, this is often a mixture of a site code/name and the depth of the tephra. Not all tephra layers in Tephrabase have a local name, but more or being added. This is independent of any correlations to other tephra deposits.
References
The data on this page is from the following source(s). If you use this data please acknowledge the source of the data. The number preceding each reference matches the Ref number on the data table above.
1794: Bergman, J., Wastegard, S., Hammarlund, D., Wohlifarth, B. and Roberts, S.J. 2004 Holocene tephra horizons at Klocka Bog, west-central Sweden: aspects of reproducibility in subarctic peat deposits. Journal of Quaternary Science 19, 241-249..
Data Sources
All of the data contained in this database is either published or donated. When using the data, acknowledgement must be made of the original source of the data and that the data was obtained from Tephrabase. See Copyright information.
This Tephrabase search was made on 24/4/2024 at 03:46:08 local time, Edinburgh, Scotland, UK.