All analyses of the Hekla 1104 Tephra

This search has found 310 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
Afangagil (Iceland)	glass	73.63	0.19	13.89	3.16	0.14	0.11	1.67	4.50	2.65		99.94	2	1301
Afangagil (Iceland)	glass	73.18	0.29	13.90	3.21	0.14	0.15	1.85	4.14	2.84		99.70	2	1301
Afangagil (Iceland)	glass	73.03	0.22	14.12	3.12	0.10	0.16	1.81	4.40	2.56		99.52	2	1301
Afangagil (Iceland)	glass	73.01	0.12	13.94	3.23	0.14	0.13	1.98	3.98	2.73		99.26	2	1301
Afangagil (Iceland)	glass	72.62	0.15	13.85	3.31	0.16	0.17	1.91	4.34	2.68		99.19	2	1301
Afangagil (Iceland)	glass	72.52	0.21	13.70	3.27	0.13	0.12	1.82	4.41	2.77		98.95	2	1301
Afangagil (Iceland)	glass	72.47	0.21	13.87	3.25	0.11	0.12	1.87	4.18	2.60		98.68	2	1301
Afangagil (Iceland)	glass	72.45	0.14	14.01	3.36	0.12	0.14	1.78	4.15	2.81		98.96	2	1301
Afangagil (Iceland)	glass	72.27	0.17	14.05	3.10	0.09	0.18	1.97	4.41	2.72		98.96	2	1301
Afangagil (Iceland)	glass	72.11	0.19	14.39	3.34	0.11	0.16	1.91	4.16	2.51		98.88	2	1301
Afangagil (Iceland)	glass	71.32	0.19	14.05	3.12	0.09	0.14	1.85	4.25	2.91		97.92	2	1301
Afangagil (Iceland)	glass	71.18	0.23	14.10	3.30	0.10	0.10	1.79	4.84	2.75		98.39	2	1301
Afangagil (Iceland)	glass	70.81	0.17	14.01	3.25	0.14	0.15	1.94	4.03	2.68		97.18	2	1301
Afangagil (Iceland)	glass	70.79	0.22	13.38	3.26	0.16	0.12	1.79	4.42	3.21		97.35	2	1301
All Saints Bog (Ireland)	glass	70.58	0.15	14.20	3.36		0.40	2.29	0.00	2.87		99.99	23	4821
All Saints Bog (Ireland)	glass	69.43	0.18	14.07	3.36		0.38	2.22	0.00	3.16		100.00	23	4821
All Saints Bog (Ireland)	glass	69.43	0.23	14.05	3.33		0.30	2.44	0.00	3.23		100.01	23	4821
All Saints Bog (Ireland)	glass	69.03	0.15	14.06	3.25		0.35	2.40	0.00	3.36		100.00	23	4821
All Saints Bog (Ireland)	glass	68.85	0.16	14.03	3.23		0.35	2.25	0.00	3.27		99.99	23	4821
All Saints Bog (Ireland)	glass	68.67	0.15	13.78	3.20		0.39	2.35	0.00	3.26		100.01	23	4821
All Saints Bog (Ireland)	glass	68.55	0.19	14.00	3.35		0.40	2.37	0.00	3.21		100.00	23	4821
All Saints Bog (Ireland)	glass	68.44	0.13	13.99	3.20		0.49	2.42	0.00	3.23		99.98	23	4821
All Saints Bog (Ireland)	glass	68.19	0.21	13.86	3.30		0.50	2.45	0.00	3.14		100.00	23	4821
All Saints Bog (Ireland)	glass	67.97	0.10	13.92	3.18		0.51	2.28	0.00	3.18		100.00	23	4821
All Saints Bog (Ireland)	glass	67.91	0.13	13.84	3.19		0.48	2.39	0.00	3.18		100.00	23	4821
All Saints Bog (Ireland)	glass	67.32	0.12	13.80	2.87		0.51	2.36	0.00	3.20		99.97	23	4821
An Loch M�r, Inis O�rr (Ireland)	glass	74.75	0.18	10.97	3.39	0.09	0.16	1.07	3.52	3.42		97.55	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	74.59	0.29	12.50	2.11	0.10	0.11	1.63	4.64	3.09		99.06	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.98	0.21	13.86	3.14	0.05	0.13	1.92	4.39	2.83		99.51	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.46	0.21	13.73	2.95	0.09	0.13	1.94	4.13	2.78		98.42	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.42	0.17	13.45	2.59	0.05	0.11	1.82	4.74	2.70		98.05	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.35	0.23	13.60	3.25	0.09	0.12	1.91	4.18	2.89		98.62	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.33	0.19	13.88	3.14	0.08	0.10	1.93	4.36	2.73		98.74	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.32	0.17	13.66	3.22	0.09	0.13	2.07	4.48	2.76		98.90	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.30	0.17	13.57	3.31	0.10	0.13	1.70	3.32	2.95		97.55	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.25	0.21	13.83	3.20	0.11	0.12	2.01	4.12	2.49		98.34	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.17	0.27	10.80	5.18	0.14	0.28	1.27	3.70	3.26		97.07	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.13	0.22	13.83	3.25	0.10	0.12	2.53	4.26	2.68		99.12	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.08	0.17	14.60	1.86	0.05	0.04	2.37	5.22	1.85		98.24	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	72.07	0.18	14.08	2.67	0.07	0.07	2.00	5.33	2.53		99.00	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.98	0.21	13.81	3.04	0.12	0.14	1.96	4.21	2.80		98.27	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.93	0.20	13.76	2.94	0.08	0.12	1.93	4.24	2.68		97.88	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.90	0.22	13.57	3.12	0.06	0.13	2.02	4.15	2.84		98.01	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.84	0.28	13.93	2.91	0.11	0.16	1.97	4.27	2.76		98.23	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.83	0.19	14.27	3.17	0.08	0.12	2.00	4.26	2.84		98.76	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.82	0.20	13.65	3.09	0.12	0.11	1.91	4.25	2.71		97.86	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.81	0.22	13.60	3.12	0.05	0.14	1.82	3.94	2.68		97.38	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.79	0.28	13.43	3.09	0.09	0.10	1.92	4.43	2.80		97.93	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.79	0.19	13.30	2.39	0.11	0.08	1.76	4.35	2.85		96.82	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.75	0.22	13.79	3.19	0.08	0.14	1.96	4.24	2.91		98.28	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.72	0.88	13.47	3.09	0.10	0.11	1.95	4.06	2.71		98.09	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.72	0.21	13.68	3.10	0.12	0.15	1.84	4.40	2.54		97.76	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.64	0.20	13.65	2.97	0.01	0.12	1.87	4.23	2.63		97.32	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.57	0.72	14.11	3.36	0.13	0.16	2.12	4.84	2.59		99.60	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.37	0.15	14.77	2.33	0.82	0.09	2.35	4.93	2.42		99.23	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.35	0.19	13.87	3.02	0.09	0.11	1.97	3.93	2.63		97.16	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.11	0.39	14.57	2.52	0.01	0.08	2.31	5.25	2.12		98.36	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	71.11	0.23	13.85	3.32	0.10	0.11	1.92	4.56	2.73		97.93	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	70.94	0.22	13.77	2.96	0.07	0.11	1.93	4.44	2.46		96.90	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	70.64	0.11	14.35	2.14	0.08	0.10	2.14	5.39	2.51		97.46	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	70.59	0.17	13.40	3.00	0.05	0.15	1.72	3.99	2.84		95.91	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	70.50	0.15	15.44	2.31	0.13	0.08	2.67	5.25	2.14		98.67	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	69.90	0.14	13.34	3.04	0.06	0.12	1.89	4.06	2.71		95.26	2	1802
An Loch M�r, Inis O�rr (Ireland)	glass	68.96	0.18	13.14	3.03	0.06	0.12	1.86	4.00	2.65		94.00	2	1802
Audkula (Iceland)	glass	73.32	0.19	14.10	3.23	0.14	0.10	1.86	4.25	2.74		99.94	2	969
Audkula (Iceland)	glass	73.26	0.17	13.91	3.22	0.12	0.13	2.03	4.56	2.50		99.91	2	969
Audkula (Iceland)	glass	72.95	0.21	14.10	3.18	0.08	0.14	1.89	4.22	2.69		99.45	2	969
Audkula (Iceland)	glass	72.88	0.23	14.02	3.04	0.13	0.13	2.08	4.00	2.73		99.24	2	969
Audkula (Iceland)	glass	72.85	0.21	13.92	3.12	0.08	0.11	2.03	4.30	2.67		99.27	2	969
Audkula (Iceland)	glass	72.84	0.21	14.36	3.18	0.09	0.11	1.88	4.06	2.80		99.51	2	969
Audkula (Iceland)	glass	72.68	0.17	14.03	3.22	0.13	0.13	1.99	4.19	2.57		99.12	2	969
Audkula (Iceland)	glass	72.39	0.18	14.75	3.15	0.11	0.10	2.07	4.48	2.70		99.92	2	969
Audkula (Iceland)	glass	72.36	0.23	13.97	3.06	0.17	0.15	1.85	4.68	2.81		99.28	2	969
Audkula (Iceland)	glass	72.23	0.13	13.98	3.27	0.08	0.13	1.94	4.24	2.68		98.69	2	969
Audkula (Iceland)	glass	71.81	0.17	14.02	3.07	0.10	0.13	1.86	4.21	2.57		97.93	2	969
Audkula (Iceland)	glass	71.81	0.21	13.84	3.36	0.08	0.16	1.94	4.48	2.64		98.52	2	969
Audkula (Iceland)	glass	71.43	0.28	14.13	3.22	0.19	0.12	1.87	4.58	2.61		98.45	2	969
Audkula (Iceland)	glass	71.32	0.18	14.08	2.99	0.17	0.11	1.92	4.57	2.63		97.96	2	969
Audkula (Iceland)	glass	71.25	0.18	13.70	3.10	0.10	0.12	1.98	4.51	2.69		97.62	2	969
Audkula (Iceland)	glass	70.99	0.22	13.99	3.12	0.13	0.15	1.94	4.50	2.92		97.95	2	969
Audkula (Iceland)	glass	70.97	0.21	13.79	3.24	0.13	0.16	1.92	4.70	2.65		97.77	2	969
Audkula (Iceland)	glass	70.79	0.19	14.30	3.05	0.15	0.14	1.92	4.55	2.59		97.68	2	969
Audkula (Iceland)	glass	70.78	0.18	13.91	3.09	0.09	0.14	1.85	4.28	2.72		97.04	2	969
Audkula (Iceland)	glass	70.69	0.17	14.12	3.19	0.11	0.08	1.85	4.55	2.57		97.34	2	969
Ballygisheen Bog (Ireland)	glass	76.28	0.17	13.68	4.08		0.36	2.38	0.00	2.59		101.75	23	4821
Ballygisheen Bog (Ireland)	glass	69.74	0.32	11.90	3.73		0.61	2.00	0.00	2.52		95.42	23	4821
Borge (Norway)	glass	72.52	0.38	14.21	3.16		0.15	1.94	4.81	2.74		99.89	17	1958
Borge (Norway)	glass	72.40	0.34	14.02	3.19		0.13	1.95	4.86	2.62		99.51	17	1958
Borge (Norway)	glass	72.00	0.20	14.07	3.05		0.12	1.98	4.74	2.59		98.77	17	1958
Borge (Norway)	glass	69.41	0.28	13.76	3.20		0.13	1.87	4.58	2.65		95.87	17	1958
Br�navatn (Faroe Islands)	glass	73.12	0.20	14.41	2.97	0.08	0.16	2.18	4.59	2.52	0.01	100.24	35	2843
Br�navatn (Faroe Islands)	glass	72.89	0.24	14.42	2.96	0.08	0.22	2.18	4.79	2.50	0.02	100.31	35	2843
Br�navatn (Faroe Islands)	glass	71.86	0.19	14.53	3.17	0.14	0.11	2.25	4.81	2.46	0.00	99.53	35	2843
Br�navatn (Faroe Islands)	glass	66.93	0.48	15.47	5.81	0.16	0.59	3.83	4.88	1.89	0.09	100.11	35	2843
Br�navatn (Faroe Islands)	glass	66.75	0.45	15.49	5.68	0.14	0.44	3.74	4.79	1.97	0.07	99.51	35	2843
Br�navatn (Faroe Islands)	glass	66.64	0.57	15.47	5.89	0.11	0.54	3.83	4.72	2.03	0.17	99.99	35	2843
Br�navatn (Faroe Islands)	glass	64.94	0.36	15.28	5.72	0.17	0.45	3.76	4.50	1.96	0.08	97.22	35	2843
Clara Bog (Ireland)	glass	72.82	0.22	14.29	3.08		0.15	2.00	4.55	2.67		99.78	4	1561
Clara Bog (Ireland)	glass	72.77	0.25	14.26	2.99		0.16	2.03	4.70	2.73		99.88	4	1561
Clara Bog (Ireland)	glass	72.51	0.24	14.37	3.10		0.14	2.21	4.42	2.83		99.83	4	1561
Clara Bog (Ireland)	glass	72.19	0.28	14.42	3.18		0.14	2.12	4.68	2.66		99.66	4	1561
Clara Bog (Ireland)	glass	72.10	0.27	14.48	3.21		0.14	2.26	4.86	2.48		99.79	4	1561
Clara Bog (Ireland)	glass	71.94	0.26	14.16	3.23		0.15	2.20	4.92	2.95		99.79	4	1561
Clara Bog (Ireland)	glass	71.93	0.28	14.24	3.22		0.12	2.24	4.86	2.79		99.67	4	1561
Clara Bog (Ireland)	glass	71.88	0.23	14.21	3.27		0.17	2.19	4.78	2.86		99.59	4	1561
Clara Bog (Ireland)	glass	71.76	0.22	14.24	3.17		0.13	2.11	4.91	2.62		99.16	4	1561
Clara Bog (Ireland)	glass	71.63	0.26	14.19	3.20		0.16	2.35	4.80	2.94		99.53	4	1561
Clara Bog (Ireland)	glass	71.60	0.26	14.35	3.23		0.16	2.19	4.77	2.52		99.08	4	1561
Clara Bog (Ireland)	glass	71.49	0.26	14.28	3.25		0.13	2.23	4.73	2.52		98.89	4	1561
Clara Bog (Ireland)	glass	71.46	0.25	14.41	3.14		0.14	2.03	5.09	2.62		99.14	4	1561
Clara Bog (Ireland)	glass	71.38	0.24	14.32	3.28		0.15	2.31	4.05	2.93		98.66	4	1561
Clara Bog (Ireland)	glass	71.00	0.25	14.15	3.17		0.16	2.39	4.85	2.96		98.93	4	1561
Clara Bog (Ireland)	glass	70.90	0.26	14.12	3.18		0.18	2.09	4.93	2.50		98.15	4	1561
Clara Bog (Ireland)	glass	70.79	0.25	14.10	3.22		0.17	2.18	4.50	2.79		98.01	4	1561
Clara Bog (Ireland)	glass	70.59	0.25	14.17	3.00		0.14	2.00	4.52	2.61		97.27	4	1561
Clara Bog (Ireland)	glass	69.25	0.26	13.79	3.17		0.16	2.08	4.47	2.86		96.03	4	1561
Clara Bog (Ireland)	glass	69.00	0.25	13.80	3.10		0.10	2.03	4.52	2.66		95.45	4	1561
Claraghmore Bog (Northern Ireland)	glass	72.14	0.21	13.79	2.88	0.10	0.12	1.87	4.17	2.76	0.02	98.00	16	4505
Claraghmore Bog (Northern Ireland)	glass	71.19	0.20	12.96	3.27	0.13	0.09	1.94	1.86	2.56	0.03	94.00	16	4505
Claraghmore Bog (Northern Ireland)	glass	70.55	0.19	12.36	3.08	0.12	0.12	1.92	4.52	2.74	0.02	96.00	16	4505
Claraghmore Bog (Northern Ireland)	glass	69.33	0.36	13.14	2.05	0.04	0.39	1.59	2.50	4.21	0.08	94.00	16	4505
Deger� Stormyr (Sweden)	glass	68.20	0.47	14.16	5.53	0.18	0.46	2.99	4.79	2.28	0.11	99.16	16	4505
Deger� Stormyr (Sweden)	glass	68.15	0.51	12.79	6.80	0.22	0.46	2.66	4.41	2.61	0.10	98.69	16	4505
Deger� Stormyr (Sweden)	glass	67.93	0.48	14.06	5.58	0.19	0.43	3.04	4.58	2.27	0.11	98.67	16	4505
Deger� Stormyr (Sweden)	glass	67.90	0.44	14.37	4.95	0.16	0.33	3.29	5.09	2.13	0.11	98.77	16	4505
Deger� Stormyr (Sweden)	glass	67.70	0.47	13.98	5.53	0.18	0.37	3.07	4.83	2.35	0.09	98.59	16	4505
Deger� Stormyr (Sweden)	glass	67.57	0.46	14.46	5.71	0.17	0.42	3.10	4.70	2.26	0.11	98.97	16	4505
Deger� Stormyr (Sweden)	glass	67.39	0.47	13.88	5.11	0.18	0.45	3.09	5.12	2.35	0.10	98.15	16	4505
Deger� Stormyr (Sweden)	glass	67.38	0.43	14.93	5.36	0.15	0.41	3.18	4.62	2.18	0.09	98.73	16	4505
Deger� Stormyr (Sweden)	glass	67.34	0.46	14.23	5.58	0.17	0.41	3.02	4.59	2.38	0.10	98.28	16	4505
Deger� Stormyr (Sweden)	glass	67.34	0.47	13.65	5.37	0.18	0.36	2.89	4.39	2.43	0.10	97.19	16	4505
Deger� Stormyr (Sweden)	glass	67.14	0.47	13.88	5.90	0.18	0.42	2.79	4.36	2.59	0.10	97.82	16	4505
Deger� Stormyr (Sweden)	glass	67.10	0.47	14.71	5.56	0.19	0.41	2.90	4.55	2.25	0.10	98.22	16	4505
Deger� Stormyr (Sweden)	glass	67.02	0.46	13.83	5.76	0.19	0.44	3.02	4.76	2.22	0.10	97.80	16	4505
Deger� Stormyr (Sweden)	glass	66.74	0.44	16.14	4.77	0.17	0.34	3.56	5.29	1.98	0.09	99.53	16	4505
Garry Bog (Northern Ireland)	glass	72.46	0.20	13.97	3.14		0.15	1.98	4.70	2.71		99.30	4	1561
Garry Bog (Northern Ireland)	glass	71.94	0.18	14.29	3.16		0.14	1.98	4.74	2.77		99.20	4	1561
Garry Bog (Northern Ireland)	glass	71.93	0.25	14.48	3.24		0.10	2.04	4.83	2.72		99.60	4	1561
Garry Bog (Northern Ireland)	glass	71.88	0.20	14.17	3.03		0.16	1.98	4.72	2.62		98.76	4	1561
Garry Bog (Northern Ireland)	glass	71.34	0.24	14.98	2.86		0.10	2.09	4.95	2.52		99.09	4	1561
Garry Bog (Northern Ireland)	glass	70.82	0.19	14.33	3.03		0.12	2.02	4.77	2.71		97.99	4	1561
Garry Bog (Northern Ireland)	glass	70.61	0.23	14.23	3.10		0.11	1.89	4.52	2.71		97.40	4	1561
Garry Bog (Northern Ireland)	glass	69.87	0.26	14.08	3.10		0.14	1.84	4.67	2.66		96.62	4	1561
Garry Bog (Northern Ireland)	glass	68.51	0.25	14.04	3.19		0.10	1.81	4.67	2.57		95.14	4	1561
Garry Bog (Northern Ireland)	glass	67.70	0.22	14.40	3.21		0.15	1.95	4.52	2.52		94.66	4	1561
Gortahurk (Northern Ireland)	glass	72.48	0.28	14.29	3.10		0.16	2.08	4.88	2.65		99.91	4	1561
Gortahurk (Northern Ireland)	glass	72.10	0.28	14.04	3.08		0.15	2.01	4.79	2.62		99.07	4	1561
Gortahurk (Northern Ireland)	glass	72.01	0.28	14.30	3.15		0.12	2.10	4.84	2.58		99.38	4	1561
Gortahurk (Northern Ireland)	glass	72.01	0.27	14.33	3.10		0.15	2.13	4.94	2.66		99.59	4	1561
Gortahurk (Northern Ireland)	glass	71.98	0.28	14.31	3.19		0.13	2.10	5.01	2.60		99.59	4	1561
Gortahurk (Northern Ireland)	glass	71.87	0.26	14.02	3.12		0.11	2.06	4.85	2.63		98.92	4	1561
Gortahurk (Northern Ireland)	glass	71.85	0.27	14.00	3.18		0.12	2.07	4.90	2.48		99.12	4	1561
Gortahurk (Northern Ireland)	glass	71.75	0.28	14.30	3.11		0.14	2.08	5.02	2.63		99.30	4	1561
Gortahurk (Northern Ireland)	glass	71.65	0.26	14.26	3.15		0.16	2.08	4.98	2.60		99.15	4	1561
Gortahurk (Northern Ireland)	glass	71.64	0.24	14.41	3.12		0.14	2.09	5.10	2.63		99.36	4	1561
Gortahurk (Northern Ireland)	glass	71.61	0.27	14.11	2.96		0.16	2.12	4.74	2.58		98.55	4	1561
Gortahurk (Northern Ireland)	glass	71.59	0.25	14.10	3.03		0.14	2.14	4.92	2.54		98.71	4	1561
Gortahurk (Northern Ireland)	glass	71.54	0.27	14.27	3.24		0.13	2.09	4.70	2.63		98.86	4	1561
Gortahurk (Northern Ireland)	glass	71.53	0.30	14.01	2.97		0.14	2.02	4.81	2.66		98.44	4	1561
Gortahurk (Northern Ireland)	glass	71.43	0.29	14.10	3.13		0.13	2.09	4.79	2.60		98.58	4	1561
Gortahurk (Northern Ireland)	glass	70.25	0.24	13.64	2.97		0.11	1.93	4.70	2.85		96.69	4	1561
Gortahurk (Northern Ireland)	glass	69.69	0.25	13.73	2.95		0.17	2.04	4.66	2.62		96.11	4	1561
Lake Svartk�lsj�rn (Sweden)	glass	74.69	0.16	13.09	1.83	0.04	0.10	0.92	4.78	3.70	0.01	99.30	16	4505
Lake Svartk�lsj�rn (Sweden)	glass	73.62	0.21	15.26	1.47	0.04	0.37	1.94	4.99	3.25	0.06	101.21	16	4505
Lake Svartk�lsj�rn (Sweden)	glass	73.02	0.20	14.17	1.64	0.02	0.44	2.04	5.27	3.24	0.05	100.10	16	4505
Lake Svartk�lsj�rn (Sweden)	glass	72.55	0.20	13.65	3.16	0.12	0.14	2.01	5.51	2.83	0.02	100.18	16	4505
Lake Svartk�lsj�rn (Sweden)	glass	72.45	0.20	14.98	3.41	0.10	0.13	1.92	5.65	2.80	0.02	101.66	16	4505
Lake Svartk�lsj�rn (Sweden)	glass	72.34	0.22	14.72	3.17	0.11	0.11	2.07	5.34	2.82	0.02	100.93	16	4505
Lake Svartk�lsj�rn (Sweden)	glass	71.91	0.20	14.07	3.28	0.12	0.16	2.00	5.33	2.79	0.03	99.89	16	4505
Lake Svartk�lsj�rn (Sweden)	glass	71.75	0.20	14.59	3.12	0.11	0.13	2.02	5.49	2.73	0.03	100.15	16	4505
Lake Svartk�lsj�rn (Sweden)	glass	69.90	0.20	14.71	3.19	0.10	0.08	1.85	5.18	2.63	0.02	97.87	16	4505
Litlidalur (Iceland)	glass	73.28	0.16	14.10	3.25	0.10	0.09	1.84	4.39	2.65		99.87	2	969
Litlidalur (Iceland)	glass	72.90	0.23	13.80	3.08	0.05	0.11	1.93	4.40	2.81		99.31	2	969
Litlidalur (Iceland)	glass	72.65	0.18	13.80	3.12	0.07	0.10	1.93	4.19	2.60		98.64	2	969
Litlidalur (Iceland)	glass	72.13	0.21	13.60	3.18	0.11	0.15	1.96	4.32	2.81		98.47	2	969
Litlidalur (Iceland)	glass	72.00	0.16	13.84	3.09	0.05	0.08	1.75	4.30	2.66		97.91	2	969
Litlidalur (Iceland)	glass	71.83	0.14	13.92	3.11	0.11	0.10	1.99	4.37	2.69		98.26	2	969
Litlidalur (Iceland)	glass	71.65	0.18	13.51	3.15	0.06	0.10	1.82	3.99	2.75		97.20	2	969
Litlidalur (Iceland)	glass	71.40	0.17	13.85	3.28	0.08	0.12	1.98	4.11	2.65		97.65	2	969
Litlidalur (Iceland)	glass	71.28	0.21	13.66	3.19	0.06	0.14	1.75	4.34	2.91		97.55	2	969
Litlidalur (Iceland)	glass	71.15	0.18	13.77	3.22	0.06	0.10	1.85	4.17	2.79		97.27	2	969
Moneyvea (Ireland)	glass	70.63	0.25	14.03	3.05		0.13	1.70	4.41	2.52		96.71	4	1561
Moneyvea (Ireland)	glass	70.57	0.22	13.94	2.98		0.13	1.79	4.88	2.79		97.29	4	1561
Moneyvea (Ireland)	glass	70.54	0.24	14.05	2.83		0.12	1.75	4.78	2.36		96.67	4	1561
Moneyvea (Ireland)	glass	70.30	0.26	13.96	2.92		0.11	1.60	4.73	2.63		96.52	4	1561
Moneyvea (Ireland)	glass	70.14	0.27	13.95	2.99		0.14	1.61	4.73	2.31		96.15	4	1561
Moneyvea (Ireland)	glass	70.09	0.28	13.71	2.83		0.13	1.78	4.64	2.34		95.79	4	1561
Moneyvea (Ireland)	glass	69.86	0.22	13.74	2.76		0.11	1.70	4.54	2.33		95.27	4	1561
Moneyvea (Ireland)	glass	69.85	0.20	13.70	2.74		0.14	1.57	4.63	2.35		95.19	4	1561
Moneyvea (Ireland)	glass	69.76	0.19	13.49	3.07		0.12	1.55	4.45	2.57		95.18	4	1561
Moneyvea (Ireland)	glass	69.66	0.24	13.78	2.86		0.13	1.56	4.76	2.30		95.28	4	1561
Orrasta�ir (Iceland)	glass	72.88	0.23	13.63	3.33	0.10	0.14	1.79	5.02	2.87		99.99	2	969
Orrasta�ir (Iceland)	glass	72.29	0.27	13.75	3.13	0.08	0.10	1.97	4.70	2.76		99.06	2	969
Orrasta�ir (Iceland)	glass	71.91	0.24	13.47	3.21	0.12	0.14	1.90	4.57	2.70		98.26	2	969
Orrasta�ir (Iceland)	glass	71.75	0.26	13.36	3.23	0.10	0.18	1.72	4.75	2.92		98.26	2	969
Orrasta�ir (Iceland)	glass	71.74	0.19	14.22	3.15	0.11	0.15	1.93	4.75	2.66		98.89	2	969
Orrasta�ir (Iceland)	glass	71.71	0.22	14.54	2.92	0.13	0.14	2.15	5.01	2.52		99.33	2	969
Orrasta�ir (Iceland)	glass	71.51	0.22	13.81	3.11	0.09	0.12	2.05	4.94	2.71		98.57	2	969
Orrasta�ir (Iceland)	glass	71.49	0.25	13.64	3.20	0.09	0.14	1.78	4.39	2.78		97.76	2	969
Orrasta�ir (Iceland)	glass	71.47	0.21	13.80	3.31	0.15	0.14	1.74	4.92	2.61		98.34	2	969
Orrasta�ir (Iceland)	glass	71.27	0.17	13.41	3.26	0.10	0.13	1.91	4.54	2.73		97.51	2	969
Owenbeg (Ireland)	glass	73.22	0.27	15.22	3.06		0.12	1.87	4.61	2.46		100.82	4	968
Owenbeg (Ireland)	glass	72.84	0.23	15.30	3.07		0.14	1.89	5.05	2.54		101.06	4	968
Owenbeg (Ireland)	glass	72.72	0.27	14.96	3.23		0.12	2.00	5.02	2.49		100.81	4	968
Owenbeg (Ireland)	glass	72.48	0.31	14.83	3.40		0.24	2.09	4.86	2.43		100.63	4	968
Owenbeg (Ireland)	glass	72.45	0.23	14.86	3.17		0.12	1.85	4.69	2.53		99.88	4	968
Owenbeg (Ireland)	glass	72.08	0.29	14.99	3.14		0.14	1.93	4.70	2.46		99.74	4	968
Owenbeg (Ireland)	glass	71.90	0.28	15.13	3.05		0.10	1.78	4.67	2.32		99.23	4	968
Portmagee (Ireland)	glass	72.85	0.22	14.74	2.74		0.15	1.83	4.98	2.42		99.93	4	1561
Portmagee (Ireland)	glass	72.43	0.26	14.20	3.22		0.15	1.91	4.72	2.19		99.08	4	1561
Portmagee (Ireland)	glass	72.02	0.20	14.18	3.07		0.18	1.81	4.73	2.53		98.72	4	1561
Portmagee (Ireland)	glass	71.93	0.21	14.44	2.94		0.16	1.87	4.62	2.59		98.75	4	1561
Portmagee (Ireland)	glass	71.91	0.26	14.45	3.01		0.17	1.88	4.50	2.39		98.57	4	1561
Portmagee (Ireland)	glass	71.43	0.21	14.62	3.14		0.12	1.80	4.81	2.54		98.67	4	1561
Portmagee (Ireland)	glass	71.40	0.27	14.14	3.13		0.16	1.88	4.80	2.34		98.11	4	1561
Portmagee (Ireland)	glass	71.14	0.20	14.63	2.93		0.16	1.80	4.73	2.28		97.86	4	1561
Portmagee (Ireland)	glass	71.08	0.22	14.34	3.10		0.16	1.73	4.76	2.46		97.85	4	1561
Portmagee (Ireland)	glass	71.03	0.19	14.52	1.65		0.06	1.92	5.28	2.40		97.05	4	1561
Portmagee (Ireland)	glass	70.94	0.23	14.43	3.04		0.13	1.97	5.13	2.41		98.29	4	1561
Portmagee (Ireland)	glass	70.56	0.21	15.24	2.72		0.09	2.23	5.33	2.04		98.40	4	1561
Portmagee (Ireland)	glass	70.39	0.24	13.88	3.01		0.10	1.81	4.64	2.53		96.62	4	1561
RS17 (Iceland)	glass	75.20	0.21	12.18	1.79	0.07	0.04	1.07	4.21	3.43	0.02	98.22	16	3586
RS17 (Iceland)	glass	74.28	0.23	11.15	2.72	0.09	0.10	1.01	3.97	9.57	0.02	97.16	16	3586
RS17 (Iceland)	glass	72.08	0.21	14.08	2.06	0.07	0.01	1.74	5.04	2.86	0.02	98.14	16	3586
RS17 (Iceland)	glass	71.66	0.19	13.66	3.04	0.10	0.08	2.07	4.96	2.35	0.02	98.13	16	3586
RS20 (Iceland)	glass	72.10	0.21	14.84	2.86	0.09	0.08	2.18	5.15	2.49	0.01	99.99	16	3586
RS20 (Iceland)	glass	72.00	0.21	13.94	3.31	0.11	0.11	1.97	4.97	2.85	0.01	99.48	16	3586
RS20 (Iceland)	glass	71.93	0.22	13.37	3.33	0.13	0.08	1.90	4.64	2.78	0.02	98.39	16	3586
RS20 (Iceland)	glass	70.04	0.17	15.42	2.52	0.08	0.08	2.53	5.77	2.40	0.02	99.04	16	3586
Sammakovuoma Lake (Sweden)	glass	72.91	0.19	13.68	2.91	0.09	0.12	1.87	4.84	2.68	0.02	99.31	16	4505
Sammakovuoma Lake (Sweden)	glass	72.16	0.20	13.55	3.27	0.11	0.14	2.00	4.80	2.73	0.02	98.97	16	4505
Sammakovuoma Lake (Sweden)	glass	72.15	0.20	13.50	2.93	0.11	0.15	1.95	4.88	2.78	0.02	98.66	16	4505
Sammakovuoma Lake (Sweden)	glass	72.08	0.20	13.85	3.11	0.11	0.12	2.00	4.71	2.69	0.02	98.89	16	4505
Sammakovuoma Lake (Sweden)	glass	71.75	0.19	13.86	3.08	0.11	0.11	1.94	4.74	2.64	0.02	98.45	16	4505
Sammakovuoma Lake (Sweden)	glass	71.68	0.20	13.44	3.00	0.10	0.15	1.94	4.94	2.70	0.02	98.16	16	4505
Sammakovuoma Lake (Sweden)	glass	71.52	0.18	13.43	2.84	0.10	0.12	1.95	4.57	2.67	0.03	97.40	16	4505
Sammakovuoma Lake (Sweden)	glass	70.56	0.19	13.71	3.03	0.09	0.10	2.03	4.93	2.70	0.03	97.37	16	4505
Sammakovuoma Peatland (Sweden)	glass	73.00	0.21	14.22	3.37	0.10	0.11	1.99	5.01	2.78	0.02	100.81	16	4505
Sammakovuoma Peatland (Sweden)	glass	72.72	0.21	14.32	3.13	0.10	0.14	2.08	5.54	2.78	0.03	101.04	16	4505
Sammakovuoma Peatland (Sweden)	glass	72.43	0.21	14.80	3.12	0.12	0.13	1.91	5.57	2.73	0.03	101.04	16	4505
Sammakovuoma Peatland (Sweden)	glass	72.30	0.19	14.56	3.80	0.09	0.12	1.94	4.90	2.62	0.04	99.93	16	4505
Sammakovuoma Peatland (Sweden)	glass	72.16	0.21	14.40	2.94	0.09	0.12	1.95	5.48	2.73	0.02	100.11	16	4505
Sammakovuoma Peatland (Sweden)	glass	71.99	0.21	15.09	3.27	0.10	0.14	1.99	5.13	2.73	0.03	100.67	16	4505
Sammakovuoma Peatland (Sweden)	glass	71.98	0.20	15.40	3.15	0.12	0.09	1.94	5.22	2.71	0.02	100.84	16	4505
Sammakovuoma Peatland (Sweden)	glass	71.97	0.20	13.91	3.10	0.09	0.11	1.89	5.48	2.72	0.03	99.51	16	4505
Sammakovuoma Peatland (Sweden)	glass	71.71	0.20	14.42	3.05	0.09	0.11	2.01	5.15	2.79	0.04	99.56	16	4505
Sammakovuoma Peatland (Sweden)	glass	71.71	0.21	14.82	3.00	0.08	0.06	1.92	5.61	2.78	0.02	100.20	16	4505
Sammakovuoma Peatland (Sweden)	glass	71.70	0.19	15.13	3.15	0.10	0.09	2.08	4.95	2.69	0.03	100.10	16	4505
Sammakovuoma Peatland (Sweden)	glass	71.63	0.20	14.58	3.04	0.11	0.11	2.08	5.36	2.74	0.01	99.85	16	4505
Sammakovuoma Peatland (Sweden)	glass	71.51	0.21	14.14	3.16	0.11	0.12	1.97	5.26	2.73	0.02	99.22	16	4505
Sammakovuoma Peatland (Sweden)	glass	71.10	0.21	14.10	2.83	0.11	0.10	2.00	5.58	2.74	0.02	98.79	16	4505
Sammakovuoma Peatland (Sweden)	glass	70.76	0.20	15.03	2.88	0.10	0.11	2.00	5.37	2.62	0.02	99.09	16	4505
Sammakovuoma Peatland (Sweden)	glass	70.19	0.19	14.77	3.11	0.12	0.14	1.94	4.98	2.68	0.01	98.15	16	4505
Sammakovuoma Peatland (Sweden)	glass	69.50	0.19	13.15	3.12	0.11	0.12	1.97	4.84	2.64	0.02	95.66	16	4505
Sammakovuoma Peatland (Sweden)	glass	69.43	0.19	13.93	3.08	0.11	0.12	1.84	5.19	2.60	0.03	96.52	16	4505
Sammakovuoma Peatland (Sweden)	glass	67.58	0.47	15.17	5.65	0.18	0.45	3.11	4.99	2.35	0.10	100.07	16	4505
Sammakovuoma Peatland (Sweden)	glass	67.45	0.47	15.39	5.64	0.18	0.44	3.21	5.36	2.29	0.10	100.54	16	4505
Slettadalur (Iceland)	glass	72.39	0.22	13.51	3.40	0.11	0.16	1.89	4.01	2.57		98.25	2	969
Slettadalur (Iceland)	glass	72.04	0.23	14.03	3.04	0.11	0.17	1.88	4.61	2.60		98.71	2	969
Slettadalur (Iceland)	glass	71.30	0.20	13.74	3.30	0.12	0.17	1.86	4.64	2.61		97.95	2	969
Slettadalur (Iceland)	glass	71.24	0.26	13.74	3.28	0.12	0.16	1.95	4.62	2.64		98.00	2	969
Slettadalur (Iceland)	glass	71.01	0.22	13.88	3.27	0.09	0.13	1.91	4.57	2.65		97.75	2	969
Slettadalur (Iceland)	glass	70.82	0.26	13.60	3.21	0.11	0.15	1.90	4.76	2.65		97.46	2	969
Slettadalur (Iceland)	glass	70.72	0.22	13.79	3.21	0.14	0.19	1.96	4.45	2.58		97.26	2	969
Slettadalur (Iceland)	glass	70.65	0.24	13.73	3.06	0.12	0.12	1.85	4.87	2.73		97.37	2	969
Slettadalur (Iceland)	glass	70.36	0.19	13.58	3.02	0.13	0.13	1.82	4.58	2.68		96.49	2	969
Slettadalur (Iceland)	glass	70.23	0.19	13.86	3.28	0.03	0.17	1.84	4.59	2.71		96.90	2	969
Sluggan Bog (Northern Ireland)	glass	76.43	0.21	13.14	1.71		0.10	0.83	4.35	3.61		100.37	4	854
Sluggan Bog (Northern Ireland)	glass	74.59	0.23	15.12	3.15		0.15	1.95	4.57	2.75		102.52	4	854
Sluggan Bog (Northern Ireland)	glass	73.93	0.26	15.05	3.13		0.13	1.98	4.97	2.76		102.04	4	854
Sluggan Bog (Northern Ireland)	glass	73.84	0.20	13.34	1.55		0.09	0.79	4.47	3.56		97.85	4	854
Sluggan Bog (Northern Ireland)	glass	73.79	0.28	15.00	1.52		0.41	1.88	4.02	2.98		99.87	4	854
Sluggan Bog (Northern Ireland)	glass	73.66	0.30	13.81	1.51		0.40	2.04	4.12	3.23		99.08	4	854
Sluggan Bog (Northern Ireland)	glass	73.31	0.28	13.53	1.49		0.43	2.05	4.32	3.29		98.69	4	854
Sluggan Bog (Northern Ireland)	glass	72.89	0.22	14.58	3.07		0.14	2.00	4.58	2.66		100.13	4	854
Sluggan Bog (Northern Ireland)	glass	72.86	0.25	14.11	3.03		0.12	1.93	4.76	2.86		99.92	4	854
Sluggan Bog (Northern Ireland)	glass	72.74	0.29	14.46	3.03		0.12	1.88	4.57	2.67		99.76	4	854
Sluggan Bog (Northern Ireland)	glass	72.66	0.29	14.66	3.07		0.13	1.91	4.27	2.65		99.62	4	854
Sluggan Bog (Northern Ireland)	glass	72.46	0.28	15.11	1.44		0.43	2.00	3.51	2.71		97.94	4	854
Sluggan Bog (Northern Ireland)	glass	72.35	0.27	14.22	3.06		0.14	1.88	4.27	2.72		99.06	4	854
Sluggan Bog (Northern Ireland)	glass	72.20	0.29	13.30	3.12		0.13	1.97	4.33	2.78		98.12	4	854
Sluggan Bog (Northern Ireland)	glass	71.62	0.29	15.24	2.99		0.14	1.97	4.46	2.65		99.36	4	854
Sluggan Bog (Northern Ireland)	glass	71.29	0.30	14.35	3.15		0.13	1.95	4.49	2.74		98.40	4	854
Sluggan Bog (Northern Ireland)	glass	71.18	0.25	13.35	2.98		0.12	1.87	4.73	2.69		97.16	4	854
Sluggan Bog (Northern Ireland)	glass	70.32	0.27	13.90	1.50		0.42	1.83	4.00	2.90		95.14	4	854
Sluggan Bog (Northern Ireland)	glass	69.78	0.23	14.23	2.83		0.11	1.86	4.87	2.58		96.50	4	854
Sluggan Bog (Northern Ireland)	glass	69.37	0.24	14.31	3.07		0.10	1.97	4.13	2.38		95.56	4	854
Sluggan Bog (Northern Ireland)	glass	69.25	0.26	14.15	2.89		0.15	1.82	4.24	2.45		95.22	4	854
Sluggan Bog (Northern Ireland)	glass	68.21	0.91	15.10	3.32		1.11	3.16	4.63	3.34		99.78	4	854
Sluggan Bog (Northern Ireland)	glass	67.64	0.81	16.43	3.30		1.11	3.05	4.30	2.79		99.43	4	854
Solheimahals (Iceland)	glass	73.01	0.22	13.84	2.84	0.11	0.12	1.97	5.00	2.84		99.94	2	969
Solheimahals (Iceland)	glass	72.71	0.23	14.16	3.27	0.07	0.13	2.01	4.48	2.69		99.75	2	969
Solheimahals (Iceland)	glass	72.51	0.15	14.19	3.28	0.10	0.13	2.05	4.77	2.68		99.84	2	969
Solheimahals (Iceland)	glass	72.05	0.23	14.26	3.14	0.10	0.13	1.97	4.26	2.84		98.97	2	969
Solheimahals (Iceland)	glass	72.04	0.22	13.62	3.10	0.13	0.12	1.78	4.53	2.88		98.42	2	969
Solheimahals (Iceland)	glass	72.02	0.13	13.35	3.16	0.11	0.13	1.77	4.63	2.87		98.19	2	969
Solheimahals (Iceland)	glass	71.99	0.20	13.74	3.21	0.11	0.11	2.03	4.40	2.64		98.44	2	969
Solheimahals (Iceland)	glass	71.97	0.21	13.94	3.24	0.13	0.13	1.98	4.56	2.67		98.84	2	969
Solheimahals (Iceland)	glass	71.86	0.22	13.98	3.08	0.08	0.14	2.05	4.65	2.47		98.54	2	969
Solheimahals (Iceland)	glass	70.59	0.23	13.88	3.06	0.11	0.12	2.02	4.40	2.76		97.17	2	969
Tungunesmuli (Iceland)	glass	73.18	0.20	14.23	3.03	0.13	0.10	1.83	4.47	2.70		99.87	2	969
Tungunesmuli (Iceland)	glass	72.91	0.18	14.43	3.08	0.04	0.09	1.98	4.60	2.43		99.75	2	969
Tungunesmuli (Iceland)	glass	72.29	0.19	13.70	2.97	0.04	0.10	1.94	3.56	2.70		97.47	2	969
Tungunesmuli (Iceland)	glass	72.24	0.25	13.98	3.00	0.06	0.09	1.82	4.22	2.74		98.40	2	969
Tungunesmuli (Iceland)	glass	50.74	2.05	13.24	12.84	0.19	6.03	10.61	2.42	0.27		98.37	2	969
Tungunesmuli (Iceland)	glass	49.89	2.96	13.19	13.12	0.21	5.49	10.21	2.83	0.47		98.37	2	969
Tungunesmuli (Iceland)	glass	48.84	2.16	13.22	12.80	0.20	6.45	10.92	2.61	0.30		97.50	2	969
Tungunesmuli (Iceland)	glass	48.54	1.77	13.58	12.51	0.24	6.37	11.68	2.34	0.23		97.27	2	969
Tungunesmuli (Iceland)	glass	48.43	1.95	12.91	13.09	0.16	6.21	10.60	2.71	0.24		96.31	2	969
Tungunesmuli (Iceland)	glass	46.00	4.68	12.43	14.21	0.25	5.00	9.79	2.69	0.89		95.94	2	969

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	Sample
2	Cambridge Instruments Microscan V (University of Edinburgh)	15	20	ZAF	Thin section mounted in araldite then ground and polished
4	Jeol 733 Superprobe (Queens University, Belfast)	10	15	ZAF	Thin section mounted in araldite then ground and polished
16	Camca SX100 (University of Edinburgh)	2	15	PAP	Thin section mounted in araldite then ground and polished
17	Jeol 733 Superprobe (Queens University, Belfast)	10	15	ZAF	Thin section mounted in araldite then ground and polished
23	Hitachi Variable Pressure Scanning Electron Microscope S-3500N (Electron Microscope Unit in Trinity College, Dublin)	1	20
35	ARL-SEMQ microprobe(Geological Institute, University of Bergen)	10	15		Polished thin sections

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.

969 - Boygle, J.E. (1994) Tephra in lake sediments: An unambiguous geochronological marker? PhD. Thesis, University of Edinburgh, Edinburgh,

1802 - Chambers, F.M., Daniell, J.R.G., Hunt, J.B., Molloy, K. and O'Connell, M. (2004) Tephrostratigraphy of An Loch M�r, Inis O�rr, western Ireland: implications for Holocene tephrochronology in the northeastern Atlantic region. Holocene 14, 703-720.

4821 - Cole, E.E. and Mitchel, F.J.G. (2003) Human impact on the Irish landscape during the late Holocene inferred frompalynological studies at three peatland sites. The Holocene 13(4), 507-515.

1561 - Hall, V.A. and Pilcher, J.R. (2002) Late-Quaternary Icelandic tephras in Ireland and Great Britain: detection, characterization and usefulness. The Holocene 12, 223-230..

1301 - Larsen, G., Dugmore, A., J. and Newton, A.J. (1999) Geochemistry of historic silicic tephras in Iceland. The Holocene 9(4), 463-471..

2843 - Olsen, J, Bjorck, S, Leng, MJ, Gudmundsdottir, ER, Odgaard, BV, Lutz, CM, Kendrick, CP, Andersen, TJ and Seidenkrantz, MS (2010) Lacustrine evidence of Holocene environmental change from three Faroese lakes: a multiproxy XRF and stable isotope study. Quaternary Science Reviews 29, ,2764-2780.

1958 - Pilcher, J., Bradley, R. S., Francus, P. and Anderson, L. (2005) A Holocene tephra record from the Lofoten Islands, Arctic Norway. Boreas 34, 136-156.

968 - Pilcher, J.R., Hall, V.A. and McCormac, F.G. (1996) An outline tephrochronology for the Holocene of the north of Ireland. Journal of Quaternary Science 11 (6), 485-494..

854 - Pilcher, J.R., Hall, V.A., and McCormac, F.G. (1995) Dates of Holocene Icelandic volcanic eruptions from tephra layers in Irish peats.. The Holocene 5(1), 103-110.

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.

4505 - Watson, E.J., Swindles, G.T., Lawson, I.T. and Savov, I.P. (2016) Do peatlands or lakes provide the most comprehensive distal tephra records?. Quaternary Science Reviews 139, 110-128.

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 07:12:33 local time, Edinburgh, Scotland, UK.