Borrobol, Caithness, Highland, Scotland

Your search has found 4 tephra layers at Borrobol

Site Type	Area	Latitude	Longitude	Grid reference	Altitude (m)
Terrestrial	Scotland, Caithness, Highland	58.1580°N	3.8330°W	NC916194	106

*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.
Profile				Tephra Layer
No	Name	Profile Depth (m)	Type	Correlated name¹	Local name²	Tephra Depth (m)	Comments	Geochemical data	Ref
110	B	5.00	STIX percussion core 60 mm diameter
				Vedde Tephra		3.680 - 3.920	*Cryptotephra	View Data	1049
				Borrobol Tephra		4.740 - 4.860	*Cryptotephra	View Data	1049
1351	Borrobol	n/a	1 metre Russian corer
				Penifiler Tephra	Borrobol 4.03-4.04	4.030 - 4.040	Rhyolitic shards with a concentration of 18 per cm^3 (*Cryptotephra)	View Data	2376
				Borrobol Tephra	Borrobol 4.19-4.2	4.190 - 4.200	Rhyolitic shards with a concentration of 11 per cm^3 (*Cryptotephra)	View Data	2376

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.

2376: Pyne-O'Donnell, S.D.F. 2007 Three new distal tephras in sediments spanning the Last Glacial-Interglacial Transition in Scotland. Journal of Quaternary Science 22, 559-570.

1049: Turney, C.S.M., Harkness, D.D. and Lowe, J.J. 1997 The use of microtephra horizons to correlate Late-glacial lake sediment successions in Scotland. Journal of Quaternary Science 12 (6), 525-531..

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 4/7/2025 at 20:07:55 local time, Edinburgh, Scotland, UK.