All analyses of the Grímsvötn 1457 Tephra

This search has found 85 analyses

The results of your search are shown on this page, which is divided into three sections. The first contains geochemical data in the form of electron probe microanalyses of the the tephra layer you have chosen, which can be downloaded. Most of these analyses will be of glass shards. The second section gives information about the instrument conditions and the third details about the sources of the data and the date and time of your search. You should always refer to the original sources to get the full context of the data presented here.

FeO: total iron is represented as FeO
*original totals for normalised data (where applicable)
Site	Phase	SiO₂	TiO₂	Al₂O₃	FeO	MnO	MgO	CaO	Na₂O	K₂O	P₂O₅	Total	EP	Ref
RS112 (Iceland)	glass	50.31	2.67	13.36	13.09	0.22	5.87	10.36	2.79	0.34	0.28	99.28	16	3586
RS112 (Iceland)	glass	50.04	2.83	13.66	13.65	0.23	5.68	10.12	2.88	0.35	0.28	99.71	16	3586
RS112 (Iceland)	glass	49.98	2.75	13.21	13.11	0.23	5.91	10.41	2.88	0.42	0.29	99.18	16	3586
RS112 (Iceland)	glass	49.94	2.68	13.51	13.10	0.22	5.99	10.45	2.79	0.34	0.27	99.28	16	3586
RS112 (Iceland)	glass	49.85	2.69	13.28	12.94	0.20	6.00	10.32	2.75	0.44	0.28	98.74	16	3586
RS112 (Iceland)	glass	49.72	2.98	13.12	13.74	0.24	5.43	9.93	2.78	0.44	0.32	98.69	16	3586
RS112 (Iceland)	glass	49.66	2.67	13.79	12.90	0.22	5.98	10.37	2.81	0.36	0.29	99.05	16	3586
RS112 (Iceland)	glass	49.36	2.66	13.57	13.06	0.22	5.92	10.37	2.70	0.39	0.28	98.53	16	3586
RS112 (Iceland)	glass	49.35	1.80	15.26	10.50	0.18	7.84	11.97	2.32	0.21	0.16	99.58	16	3586
RS112 (Iceland)	glass	49.23	2.96	13.12	14.09	0.26	5.49	9.96	2.89	0.45	0.32	98.76	16	3586
RS152 (Iceland)	glass	50.68	2.58	13.27	13.00	0.21	5.72	10.05	2.74	0.49	0.25	98.99	16	3586
RS152 (Iceland)	glass	50.06	2.99	13.11	14.60	0.25	5.64	10.03	2.93	0.45	0.26	100.32	16	3586
RS152 (Iceland)	glass	49.57	2.60	12.85	13.07	0.23	5.97	10.19	2.66	0.36	0.24	97.75	16	3586
RS152 (Iceland)	glass	49.51	2.76	12.63	13.63	0.23	5.76	9.94	2.91	0.42	0.27	98.05	16	3586
RS152 (Iceland)	glass	49.50	2.78	12.79	13.92	0.22	5.64	10.19	2.77	0.41	0.26	98.48	16	3586
RS152 (Iceland)	glass	49.49	2.77	13.14	13.23	0.21	5.85	9.95	2.81	0.46	0.26	98.19	16	3586
RS152 (Iceland)	glass	49.28	2.63	13.08	12.66	0.22	5.94	10.08	2.88	0.42	0.23	97.42	16	3586
RS152 (Iceland)	glass	49.19	2.95	12.60	13.90	0.24	5.39	9.41	2.79	0.42	0.28	97.18	16	3586
RS152 (Iceland)	glass	49.12	2.63	13.53	13.01	0.21	5.91	10.42	2.57	0.41	0.23	98.04	16	3586
RS152 (Iceland)	glass	49.11	2.66	13.13	12.80	0.22	5.84	10.36	2.79	0.34	0.25	97.52	16	3586
RS17 (Iceland)	glass	49.87	2.84	13.23	13.18	0.22	5.65	10.23	2.90	0.39	0.31	98.84	16	3586
RS17 (Iceland)	glass	49.57	2.67	13.61	12.97	0.22	5.85	10.32	2.90	0.45	0.28	98.81	16	3586
RS17 (Iceland)	glass	49.43	2.87	13.04	13.55	0.22	5.53	10.03	2.75	0.40	0.30	98.11	16	3586
RS17 (Iceland)	glass	48.96	2.85	12.97	13.64	0.22	5.61	9.73	2.90	0.39	0.30	97.56	16	3586
RS17 (Iceland)	glass	48.83	2.80	13.10	13.04	0.23	5.72	10.15	2.83	0.36	0.29	97.36	16	3586
RS17 (Iceland)	glass	48.78	2.63	13.68	13.15	0.22	6.00	10.32	2.65	0.41	0.27	98.11	16	3586
RS17 (Iceland)	glass	48.40	2.64	13.57	12.93	0.20	6.04	10.54	2.71	0.34	0.27	97.64	16	3586
RS17 (Iceland)	glass	48.13	2.76	13.26	13.75	0.24	5.98	10.30	2.88	0.41	0.28	98.00	16	3586
RS179 (Iceland)	glass	50.03	2.75	13.44	13.14	0.22	5.93	10.32	2.84	0.41	0.25	99.33	16	3586
RS179 (Iceland)	glass	49.53	2.70	13.41	13.18	0.22	6.16	10.40	2.83	0.36	0.24	99.02	16	3586
RS179 (Iceland)	glass	49.44	2.47	13.64	11.82	0.20	6.55	11.16	2.57	0.30	0.21	98.37	16	3586
RS179 (Iceland)	glass	49.19	2.72	13.31	13.13	0.22	5.94	10.50	3.03	0.38	0.25	98.68	16	3586
RS179 (Iceland)	glass	49.12	2.70	13.22	13.03	0.22	6.04	10.50	2.79	0.34	0.25	98.20	16	3586
RS179 (Iceland)	glass	49.09	3.11	12.81	13.96	0.24	5.35	9.99	2.96	0.46	0.28	98.24	16	3586
RS179 (Iceland)	glass	48.90	2.94	12.95	13.63	0.25	5.61	10.04	2.90	0.42	0.24	97.88	16	3586
RS179 (Iceland)	glass	48.67	2.70	13.60	13.19	0.23	6.07	10.56	2.69	0.39	0.23	98.34	16	3586
RS20 (Iceland)	glass	50.11	3.07	13.19	14.21	0.23	5.34	9.78	3.03	0.39	0.32	99.68	16	3586
RS20 (Iceland)	glass	49.39	2.58	13.54	12.77	0.22	6.14	10.46	2.91	0.34	0.26	98.62	16	3586
RS20 (Iceland)	glass	49.27	2.64	13.24	12.63	0.22	5.87	10.40	2.73	0.41	0.26	97.68	16	3586
RS20 (Iceland)	glass	49.14	2.67	13.60	13.31	0.23	5.94	10.47	2.73	0.37	0.28	98.75	16	3586
RS20 (Iceland)	glass	48.93	2.91	13.44	14.00	0.22	5.67	10.02	2.95	0.50	0.29	98.94	16	3586
RS20 (Iceland)	glass	48.92	2.65	13.28	12.95	0.22	5.96	10.42	2.79	0.39	0.27	97.85	16	3586
RS20 (Iceland)	glass	48.80	2.85	13.23	13.18	0.24	5.53	10.12	2.81	0.41	0.29	97.47	16	3586
RS20 (Iceland)	glass	48.75	2.94	13.07	13.85	0.23	5.59	9.90	2.82	0.44	0.31	97.90	16	3586
RS27 (Iceland)	glass	49.86	2.66	13.47	13.26	0.22	6.09	10.55	2.80	0.34	0.26	99.52	16	3586
RS27 (Iceland)	glass	49.86	2.63	13.66	13.18	0.22	5.88	10.39	2.74	0.35	0.26	99.17	16	3586
RS27 (Iceland)	glass	49.51	2.63	13.15	13.07	0.22	6.25	10.46	2.93	0.41	0.27	98.92	16	3586
RS27 (Iceland)	glass	49.46	2.63	13.22	12.86	0.23	5.91	10.44	2.79	0.38	0.28	98.20	16	3586
RS27 (Iceland)	glass	49.45	2.63	12.79	12.95	0.20	5.92	10.38	2.81	0.41	0.27	97.81	16	3586
RS27 (Iceland)	glass	49.45	2.63	13.48	13.07	0.23	6.08	10.41	2.82	0.31	0.27	98.74	16	3586
RS27 (Iceland)	glass	49.40	2.66	13.57	13.10	0.20	5.95	10.37	2.73	0.36	0.27	98.61	16	3586
RS27 (Iceland)	glass	49.35	2.64	13.58	12.47	0.23	6.01	10.46	2.99	0.36	0.27	98.35	16	3586
RS27 (Iceland)	glass	49.17	2.65	13.53	12.68	0.22	6.07	10.35	2.63	0.34	0.27	97.92	16	3586
RS27 (Iceland)	glass	49.07	2.60	13.54	12.84	0.21	6.03	10.54	2.90	0.39	0.25	98.38	16	3586
RS49 (Iceland)	glass	50.51	2.68	13.49	12.69	0.22	5.83	10.51	2.65	0.38	0.26	99.23	16	3586
RS49 (Iceland)	glass	50.09	2.99	13.21	13.80	0.23	5.52	9.82	2.78	0.47	0.31	99.23	16	3586
RS49 (Iceland)	glass	49.89	2.85	13.32	13.94	0.23	5.80	10.17	2.96	0.43	0.27	99.87	16	3586
RS49 (Iceland)	glass	49.83	2.82	13.32	13.12	0.24	5.66	10.44	2.80	0.40	0.27	98.91	16	3586
RS49 (Iceland)	glass	49.79	2.86	13.32	13.51	0.23	5.70	10.11	2.81	0.42	0.28	99.02	16	3586
RS49 (Iceland)	glass	49.75	2.83	13.18	13.75	0.22	5.66	10.24	2.80	0.39	0.28	99.10	16	3586
RS49 (Iceland)	glass	49.75	2.93	13.29	13.34	0.23	5.49	9.86	2.87	0.42	0.28	98.47	16	3586
RS49 (Iceland)	glass	49.68	2.84	13.38	13.47	0.23	5.82	10.02	2.92	0.44	0.29	99.09	16	3586
RS49 (Iceland)	glass	49.53	2.90	12.95	14.19	0.23	5.63	9.99	2.68	0.36	0.28	98.73	16	3586
RS49 (Iceland)	glass	49.09	2.86	13.70	13.29	0.22	5.83	9.96	2.84	0.44	0.28	98.52	16	3586
RS56 (Iceland)	glass	50.59	2.68	13.35	12.42	0.21	5.88	10.62	2.73	0.30	0.28	99.07	16	3586
RS56 (Iceland)	glass	50.09	2.83	13.03	13.45	0.22	5.75	10.22	2.83	0.43	0.28	99.13	16	3586
RS56 (Iceland)	glass	50.04	3.06	13.18	14.27	0.23	5.29	9.84	2.88	0.44	0.33	99.54	16	3586
RS56 (Iceland)	glass	50.03	2.63	13.32	12.70	0.20	5.48	10.14	2.95	0.48	0.29	98.22	16	3586
RS56 (Iceland)	glass	49.84	2.70	13.30	12.82	0.22	5.73	10.33	2.74	0.35	0.30	98.32	16	3586
RS56 (Iceland)	glass	49.77	2.85	13.00	13.99	0.23	5.48	10.15	2.76	0.44	0.32	98.98	16	3586
RS56 (Iceland)	glass	49.52	2.68	13.20	12.99	0.23	5.89	10.39	2.90	0.40	0.27	98.48	16	3586
RS56 (Iceland)	glass	49.49	2.89	12.96	13.67	0.22	5.67	10.33	2.80	0.39	0.30	98.72	16	3586
RS56 (Iceland)	glass	49.18	2.79	13.67	13.49	0.23	5.72	10.38	2.80	0.38	0.28	98.90	16	3586
RS56 (Iceland)	glass	48.74	2.66	13.07	12.97	0.21	6.10	10.61	2.90	0.37	0.29	97.92	16	3586
RS87 (Iceland)	glass	50.53	2.67	13.61	12.73	0.20	5.87	10.44	2.84	0.40	0.25	99.56	16	3586
RS87 (Iceland)	glass	50.16	2.65	13.14	12.86	0.23	6.04	10.51	2.81	0.38	0.27	99.03	16	3586
RS87 (Iceland)	glass	49.80	2.66	13.61	13.12	0.22	5.91	10.46	2.74	0.37	0.25	99.14	16	3586
RS87 (Iceland)	glass	49.66	2.88	13.35	13.89	0.22	5.42	10.35	2.90	0.42	0.31	99.39	16	3586
RS87 (Iceland)	glass	49.63	2.81	13.27	13.18	0.23	5.88	10.38	2.82	0.36	0.24	98.79	16	3586
RS87 (Iceland)	glass	49.49	2.78	13.28	13.43	0.23	5.93	10.37	2.67	0.38	0.28	98.83	16	3586
RS87 (Iceland)	glass	49.39	2.70	13.16	13.12	0.21	5.84	10.72	2.73	0.34	0.27	98.47	16	3586
RS87 (Iceland)	glass	49.36	2.92	13.02	13.46	0.22	5.69	10.13	2.84	0.41	0.29	98.35	16	3586
RS87 (Iceland)	glass	49.32	2.80	12.81	12.95	0.24	5.64	10.34	2.86	0.38	0.30	97.66	16	3586
RS87 (Iceland)	glass	49.15	2.65	13.39	13.17	0.22	6.09	10.29	2.83	0.41	0.26	98.47	16	3586
RS87 (Iceland)	glass	48.47	2.99	12.86	14.34	0.26	5.44	9.54	2.84	0.45	0.32	97.50	16	3586

Instrument Conditions

These analyses were carried out under the following electron microprobe conditions.

Please refer to papers for full details of the instrument conditions, standards etc used to create these analyses
EP	Instrument	Beam current (nA)	Beam voltage (kV)	Correction	Beam	Sample	Comments
16	Camca SX100 (University of Edinburgh)	2	15	PAP		Thin section mounted in araldite then ground and polished

References

The data on this page is from the following source(s). If you use this data please acknowledge the source of the data. he number preceeding each reference matches the Ref number on the data table above.

3586 - Streeter, R. and Dugmore, A. (2014) Late-Holocene land surface change in a coupled social ecological system, southern Iceland: a cross-scale tephrochronology approach. Quaternary Science Reviews 86, 99-114.

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 5/7/2025 at 07:23:38 local time, Edinburgh, Scotland, UK.