Hamragarđaheiđi M, Rangárţing eystra, Iceland

Your search has found 41 tephra layers at Hamragarđaheiđi M

Site Type	Area	Latitude	Longitude	Altitude (m)
Terrestrial	Iceland, Rangárţing eystra	63.6192°N	19.9225°W	420

*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
1300	Hmrh M1	n/a	Soil section
				Hekla 1947 Tephra	Hmrh M1 1	0.130 - 0.135	Coarse dark tephra		8105
				Katla 1918 Tephra	Hmrh M1 2	0.335 - 0.335	Trace coarse black tephra, thickness can increase to 0.5cm		8105
				Eyjafjallajökull 1821 Tephra	Hmrh M1 3	0.655 - 0.660	Fine white tephra		8105
				Hekla 1510 Tephra	Hmrh M1 4	0.840 - 0.840	Trace coarse dark tephra		8105
				Katla 1500 Tephra	Hmrh M1 5	0.841 - 0.846	Coarse black tephra		8105
				Katla 920 Tephra	Hmrh M1 6	0.966 - 1.036	Coarse brown tephra		8105
				Landnám Tephra	Hmrh M1 7	1.041 - 1.046	Patchy fine olive green tephra		8105
1301	Hmrh M2	n/a	Soil section
				Hekla 1947 Tephra	Hmrh M2 1	0.070 - 0.075	Coarse brown tephra		8105
				Katla 1918 Tephra	Hmrh M2 2	0.225 - 0.230	Fine black tephra		8105
				Katla 1755 Tephra	Hmrh M2 3	0.680 - 0.680	Trace fine black tephra, thickness can increase to 0.5cm		8105
				Hekla 1510 Tephra	Hmrh M2 4	0.710 - 0.715	Coarse dark tephra		8105
				Katla 1500 Tephra	Hmrh M2 5	0.720 - 0.735	Coarse black tephra		8105
				Hekla 1341 Tephra	Hmrh M2 6	0.775 - 0.775	Fine blue tephra		8105
				Katla 920 Tephra	Hmrh M2 7	0.845 - 0.865	Coarse brown tephra		8105
				Landnám Tephra	Hmrh M2 8	0.880 - 0.885	Patchy tephra		8105
1302	Hmrh M3	n/a	Soil section
					Hmrh M3 1	0.130 - 0.135	Reworked tephra		8105
				Hekla 1947 Tephra	Hmrh M3 2	0.410 - 0.415	Coarse dark tephra with red scoria		8105
				Katla 1918 Tephra	Hmrh M3 3	1.065 - 1.065	Trace fine white tephra		8105
				Katla 1755 Tephra	Hmrh M3 4	1.125 - 1.125	Trace fine brown tephra		8105
				Hekla 1510 Tephra	Hmrh M3 5	1.215 - 1.220	Coarse dark tephra		8105
				Katla 1500 Tephra	Hmrh M3 6	1.221 - 1.221	Trace coarse black tephra, thickness can increase to 0.5cm		8105
				Hekla 1341 Tephra	Hmrh M3 7	1.261 - 1.261	Trace fine blue grey tephra		8105
				Katla 920 Tephra	Hmrh M3 8	1.351 - 1.361	Coarse brown tephra; 10cm scallops 4cm upstanding (tree casts?)		8105
				Landnám Tephra	Hmrh M3 9	1.381 - 1.381	Trace of very patchy fine olive green tephra; thickness can increase to 0.5cm		8105
					Hmrh M3 10	1.401 - 1.431	Coarse black tephra - very disturbed upper surface, scalloped on 1cm scale thickening to 5 cm on 10cm scale; irregular lower boundary		8105
1303	Hmrh M4	n/a	Soil section
				Hekla 1947 Tephra	Hmrh M4 1	0.100 - 0.105	Coarse black tephra		8105
				Eyjafjallajökull 1821 Tephra	Hmrh M4 2	0.415 - 0.415	Trace of fine white tephra		8105
				Katla 1755 Tephra	Hmrh M4 3	0.515 - 0.515	Trace fine black tephra		8105
				Hekla 1510 Tephra	Hmrh M4 4	0.565 - 0.565	Trace coarse dark tephra		8105
				Katla 1500 Tephra	Hmrh M4 5	0.566 - 0.571	Coarse black tephra		8105
				Katla 920 Tephra	Hmrh M4 6	0.671 - 0.681	Coarse black tephra		8105
				Landnám Tephra	Hmrh M4 7	0.681 - 0.681	Trace fine olive green tephra		8105
1304	Hmrh M5	n/a	Soil section
				Hekla 1947 Tephra	Hmrh M5 1	0.020 - 0.065	Coarse black tephra		8105
				Eyjafjallajökull 1821 Tephra	Hmrh M5 2	0.340 - 0.345	Fine white tephra		8105
				Katla 1755 Tephra	Hmrh M5 3	0.540 - 0.540	Trace fine black tephra, thickness can increase to 0.5cm		8105
				Hekla 1510 Tephra	Hmrh M5 4	0.620 - 0.620	Trace fine dark tephra		8105
				Katla 1500 Tephra	Hmrh M5 5	0.620 - 0.645	Fine black tephra		8105
				Hekla 1341 Tephra	Hmrh M5 6	0.685 - 0.685	Trace fine blue grey tephra		8105
				Katla 920 Tephra	Hmrh M5 7	0.795 - 0.830	Coarse dark tephra		8105
				Landnám Tephra	Hmrh M5 8	0.850 - 0.865	Fine olive green tephra; at bottom a trace of white tephra		8105
					Hmrh M5 9	1.000 - 1.055	Coarse black tephra		8105

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.

8105: Anthony Newton and Andrew Dugmore 2018 Institute of Geography, School of GeoScience, University of Edinburgh, Drummond Street, Edinburgh EH8 9XP UK

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 19:29:58 local time, Edinburgh, Scotland, UK.