Gígjökull MD40, Rangárţing eystra, Iceland

Your search has found 12 tephra layers at Gígjökull MD40

Site Type	Area	Latitude	Longitude	Altitude (m)
Terrestrial	Iceland, Rangárţing eystra	63.6788°N	19.6141°W	250

*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
1325	Gjk MD40	n/a	Soil section
				Katla 1500 Tephra	Gjk MD40 1	0.150 - 0.170	Coarse black tephra		5035
				Hekla 1341 Tephra	Gjk MD40 2	0.280 - 0.305	Fine blue grey tephra		5035
				Katla 920 Tephra	Gjk MD40 3	0.495 - 0.585	Coarse black tephra		5035
				Landnám Tephra	Gjk MD40 4	0.605 - 0.615	Fine olive green tephra		5035
					Gjk MD40 5	0.625 - 0.630	Coarse black tephra		5035
					Gjk MD40 6	0.650 - 0.670	Coarse black tephra		5035
					Gjk MD40 7	0.680 - 0.695	Coarse dark tephra		5035
					Gjk MD40 8	0.745 - 0.765	Coarse dark tephra		5035
				Ey Ha/b Tephra	Gjk MD40 9	0.855 - 0.870	Fine white tephra		5035
					Gjk MD40 10	0.910 - 0.940	Coarse dark tephra		5035
				SILK-YN Tephra	Gjk MD40 11	0.990 - 1.010	Fine yellow tephra		5035
					Gjk MD40 12	1.040 - 1.120	Coarse dark tephra		5035

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.

5035: Kirkbride, M.P. and Dugmore A.J. 2008 Two millennia of glacier advances from southern Iceland dated by tephrochronology. Quaternary Research 70, 398-411. https://doi.org/10.1016/j.yqres.2008.07.001

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 21:30:44 local time, Edinburgh, Scotland, UK.