All analyses of the Hekla 1510 Tephra

This search has found 159 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
Dead Island Bog (Northern Ireland)	glass	62.42	0.88	15.15	7.73	0.29	1.36	4.45	4.06	1.65		97.99	7	2225
Dead Island Bog (Northern Ireland)	glass	59.25	0.85	14.47	7.19	0.21	1.26	4.23	4.06	1.65		93.17	7	2225
Dunadd (Mòine Mhór) (Scotland)	glass	68.63	0.80	14.06	4.49	0.14	0.56	2.11	4.00	3.19		97.98	22	2816
Dunadd (Mòine Mhór) (Scotland)	glass	68.19	0.74	13.90	4.44	0.14	0.56	1.96	4.18	3.13		97.25	22	2816
Dunadd (Mòine Mhór) (Scotland)	glass	62.79	0.95	15.48	7.08	0.25	1.24	4.43	4.03	1.83		98.07	22	2816
Dunadd (Mòine Mhór) (Scotland)	glass	62.66	0.90	15.47	7.71	0.16	1.27	4.61	4.23	1.77		98.77	22	2816
Dunadd (Mòine Mhór) (Scotland)	glass	62.44	1.00	15.37	7.71	0.26	1.32	4.67	1.81	1.78		96.34	22	2816
Dunadd (Mòine Mhór) (Scotland)	glass	61.90	0.99	15.59	7.57	0.21	1.24	4.48	4.13	1.78		97.88	22	2816
Dunadd (Mòine Mhór) (Scotland)	glass	61.50	0.95	15.62	7.60	0.30	1.28	4.46	4.05	1.72		97.48	22	2816
Dunadd (Mòine Mhór) (Scotland)	glass	61.43	0.93	15.85	7.07	0.30	1.19	4.87	4.22	1.58		97.44	22	2816
Dunadd (Mòine Mhór) (Scotland)	glass	61.36	1.00	15.39	7.64	0.21	1.30	4.64	4.01	1.68		97.20	22	2816
Dunadd (Mòine Mhór) (Scotland)	glass	60.92	0.94	15.12	7.53	0.17	1.30	4.42	4.02	1.76		96.18	22	2816
Fallahogy Bog (Northern Ireland)	glass	76.23	0.32	11.99	3.57	0.12	0.10	1.70	4.09	2.26	0.03	100.42	16	4255
Fallahogy Bog (Northern Ireland)	glass	73.84	0.23	13.39	3.19	0.12	0.01	1.05	5.23	3.61	0.01	100.69	16	4255
Fallahogy Bog (Northern Ireland)	glass	73.65	0.19	13.19	1.30	0.03	0.22	1.50	4.63	2.27	0.06	97.05	16	4255
Fallahogy Bog (Northern Ireland)	glass	73.19	0.22	12.75	3.07	0.09	0.01	0.95	5.27	3.59	0.00	99.12	16	4255
Fallahogy Bog (Northern Ireland)	glass	71.01	0.20	12.44	3.32	0.13	0.07	1.02	4.67	3.95	0.03	96.83	16	4255
Fallahogy Bog (Northern Ireland)	glass	69.30	0.28	12.87	3.61	0.14	0.18	1.37	5.36	3.40	0.04	96.55	16	4255
Fallahogy Bog (Northern Ireland)	glass	67.97	0.73	13.84	5.57	0.17	0.51	2.45	4.75	2.91	0.14	99.05	16	4255
Fallahogy Bog (Northern Ireland)	glass	63.89	0.93	15.03	7.70	0.22	1.23	4.54	4.73	1.69	0.30	100.27	16	4255
Fallahogy Bog (Northern Ireland)	glass	63.74	0.83	15.19	7.83	0.20	1.36	4.55	4.70	1.77	0.36	100.53	16	4255
Fallahogy Bog (Northern Ireland)	glass	63.72	0.93	15.40	7.65	0.23	1.33	4.58	4.74	1.72	0.30	100.61	16	4255
Fallahogy Bog (Northern Ireland)	glass	63.64	0.82	15.06	8.43	0.20	1.31	4.82	4.64	1.74	0.36	101.03	16	4255
Fallahogy Bog (Northern Ireland)	glass	63.54	0.93	15.15	7.64	0.23	1.29	4.44	4.44	1.69	0.32	99.65	16	4255
Fallahogy Bog (Northern Ireland)	glass	63.51	0.86	14.34	8.50	0.24	1.33	4.24	4.65	1.76	0.30	99.73	16	4255
Fallahogy Bog (Northern Ireland)	glass	63.43	0.98	15.24	8.30	0.20	1.34	4.46	4.76	1.71	0.35	100.77	16	4255
Fallahogy Bog (Northern Ireland)	glass	63.32	0.93	15.18	7.74	0.21	1.23	4.52	4.75	1.73	0.29	99.92	16	4255
Fallahogy Bog (Northern Ireland)	glass	63.00	0.83	15.67	8.03	0.20	1.23	4.92	4.85	1.67	0.28	100.67	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.97	0.95	14.69	7.98	0.23	1.30	4.39	4.80	1.80	0.31	99.43	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.72	0.45	16.37	3.50	0.27	0.26	0.67	7.47	5.46	0.04	97.21	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.71	0.93	15.25	7.72	0.21	1.32	4.70	4.53	1.85	0.32	99.53	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.67	0.92	15.29	7.81	0.21	1.27	4.54	4.76	1.81	0.31	99.60	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.39	0.91	15.16	8.08	0.20	1.22	4.73	4.42	1.70	0.29	99.10	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.35	0.90	15.58	7.84	0.21	1.24	4.64	4.57	1.76	0.32	99.40	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.33	0.94	14.77	7.83	0.21	1.21	4.40	4.39	1.94	0.33	98.34	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.31	0.92	15.25	8.05	0.21	1.32	4.75	4.46	1.66	0.34	99.26	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.31	0.86	15.56	6.85	0.19	1.02	4.59	4.59	1.76	0.30	98.02	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.29	0.92	14.98	7.76	0.21	1.28	4.63	4.61	1.72	0.31	98.70	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.14	0.91	14.78	7.60	0.17	1.27	4.60	4.60	1.85	0.30	98.23	16	4255
Fallahogy Bog (Northern Ireland)	glass	62.08	0.95	14.63	8.44	0.25	1.41	4.64	4.53	1.74	0.31	98.97	16	4255
Fallahogy Bog (Northern Ireland)	glass	61.77	0.98	16.42	6.60	0.22	0.97	5.30	5.12	1.73	0.49	99.59	16	4255
Fallahogy Bog (Northern Ireland)	glass	61.62	0.97	14.87	8.09	0.22	1.35	4.71	4.39	1.75	0.35	98.32	16	4255
Fallahogy Bog (Northern Ireland)	glass	61.53	0.65	17.44	6.65	0.18	1.03	5.75	5.01	1.35	0.23	99.82	16	4255
Fallahogy Bog (Northern Ireland)	glass	61.38	0.65	18.06	5.53	0.16	0.97	6.07	5.39	1.17	0.24	99.60	16	4255
Fallahogy Bog (Northern Ireland)	glass	60.94	0.90	14.68	8.20	0.24	1.32	4.65	4.43	1.68	0.30	97.33	16	4255
Fallahogy Bog (Northern Ireland)	glass	60.77	0.89	14.41	7.90	0.22	1.28	4.61	4.41	1.67	0.27	96.45	16	4255
Fallahogy Bog (Northern Ireland)	glass	60.70	0.91	14.36	7.70	0.20	1.27	4.48	4.18	1.75	0.31	95.86	16	4255
Garry Bog (Northern Ireland)	glass	64.20	1.04	14.49	7.99	0.22	1.21	4.36	4.33	1.72		99.55	2	968
Garry Bog (Northern Ireland)	glass	63.99	1.01	15.23	7.35	0.21	1.31	4.34	4.25	1.69		99.38	2	968
Garry Bog (Northern Ireland)	glass	63.71	0.98	15.26	7.94	0.22	1.37	4.43	4.06	1.71		99.67	2	968
Garry Bog (Northern Ireland)	glass	63.66	0.92	15.27	8.12	0.20	1.26	4.42	4.17	1.70		99.73	2	968
Garry Bog (Northern Ireland)	glass	63.61	0.95	15.11	7.53	0.23	1.25	4.65	4.18	1.66		99.16	2	968
Garry Bog (Northern Ireland)	glass	63.33	0.89	14.70	8.42	0.21	1.36	4.48	4.33	1.68		99.40	2	968
Garry Bog (Northern Ireland)	glass	63.30	1.01	15.25	8.51	0.21	1.27	4.44	4.08	1.63		99.70	2	968
Garry Bog (Northern Ireland)	glass	63.05	0.94	15.12	7.65	0.27	1.33	4.75	4.43	1.82		99.36	2	968
Garry Bog (Northern Ireland)	glass	62.53	1.03	14.83	8.03	0.25	1.30	4.45	4.28	1.61		98.31	2	968
Garry Bog (Northern Ireland)	glass	62.37	0.84	15.00	8.14	0.29	1.69	5.26	4.23	1.40		99.22	2	968
Garry Bog (Northern Ireland)	glass	62.34	0.97	14.95	7.81	0.22	1.42	4.55	4.52	1.70		98.48	2	968
Garry Bog (Northern Ireland)	glass	62.21	0.94	14.96	7.56	0.22	1.19	4.18	4.08	1.77		97.09	2	968
Garry Bog (Northern Ireland)	glass	61.78	0.92	15.06	6.85	0.19	0.85	4.19	4.38	1.69		95.91	2	968
Garry Bog (Northern Ireland)	glass	61.72	0.96	14.93	7.86	0.26	1.25	4.74	4.57	1.68		97.97	2	968
Garry Bog (Northern Ireland)	glass	61.55	0.90	15.07	7.69	0.25	1.24	4.49	4.36	1.70		97.26	2	968
Garry Bog (Northern Ireland)	glass	61.51	0.96	14.82	8.11	0.26	1.25	4.70	4.25	1.62		97.49	2	968
Garry Bog (Northern Ireland)	glass	60.90	0.88	14.30	7.53	0.18	1.19	4.30	4.11	1.68		95.07	2	968
Garry Bog (Northern Ireland)	glass	60.79	1.01	15.08	7.60	0.22	1.25	4.59	4.55	1.82		96.90	2	968
Garry Bog (Northern Ireland)	glass	60.77	1.57	16.53	7.89	0.20	0.89	5.48	5.25	1.36		99.94	2	968
Garry Bog (Northern Ireland)	glass	59.68	0.93	15.30	7.55	0.18	0.91	4.70	5.01	1.85		96.11	2	968
Lairg AG3 (Scotland)	glass	63.84	0.83	14.88	8.03	0.28	1.03	4.32	4.70	1.79		99.69	2	853
Lairg AG3 (Scotland)	glass	62.59	0.81	15.09	8.49	0.27	1.33	4.76	4.81	1.63		99.78	2	853
Lairg AG3 (Scotland)	glass	62.17	0.86	15.30	8.39	0.24	1.22	4.41	4.43	1.67		98.71	2	853
Lairg AG3 (Scotland)	glass	62.17	0.95	15.16	8.87	0.23	1.13	4.58	4.59	1.76		99.48	2	853
Lairg AG3 (Scotland)	glass	62.16	0.92	15.11	8.52	0.30	1.17	4.47	4.45	1.73		98.84	2	853
Lairg AG3 (Scotland)	glass	61.29	0.88	15.13	8.40	0.29	1.17	4.26	4.60	1.74		97.75	2	853
Lairg AG3 (Scotland)	glass	57.59	1.33	14.78	9.59	0.26	1.99	5.33	4.05	1.49		96.41	2	853
Liffey Head Bog (Ireland)	glass	74.74	0.16	14.01	3.39		0.25	1.25	0.00	6.21		100.01	23	4821
Liffey Head Bog (Ireland)	glass	68.18	0.12	14.38	0.91		0.53	0.02	0.00	15.82		100.01	23	4821
Liffey Head Bog (Ireland)	glass	63.22	0.85	14.49	8.82		0.96	4.74	0.00	2.16		100.00	23	4821
Liffey Head Bog (Ireland)	glass	63.07	0.66	14.48	8.08		0.88	4.13	0.00	2.59		100.01	23	4821
Liffey Head Bog (Ireland)	glass	61.92	0.81	14.33	8.51		0.78	4.42	0.00	2.50		99.99	23	4821
Liffey Head Bog (Ireland)	glass	61.89	0.69	14.55	7.91		1.15	4.58	0.00	2.01		100.01	23	4821
Liffey Head Bog (Ireland)	glass	60.46	0.74	14.42	8.56		1.19	4.98	0.00	2.06		99.99	23	4821
Liffey Head Bog (Ireland)	glass	60.06	0.77	13.82	8.99		1.34	4.89	0.00	2.17		100.02	23	4821
Liffey Head Bog (Ireland)	glass	57.34	0.57	16.11	5.66		0.91	5.33	0.00	1.64		100.01	23	4821
Liffey Head Bog (Ireland)	glass	56.41	0.17	19.24	2.38		1.01	7.85	0.00	0.58		99.99	23	4821
Liffey Head Bog (Ireland)	glass	56.28	0.04	20.72	0.88		0.87	8.79	0.00	0.39		100.00	23	4821
Liffey Head Bog (Ireland)	glass	55.89	0.08	21.48	0.66		0.76	9.28	0.00	0.20		100.00	23	4821
Liffey Head Bog (Ireland)	glass	55.69	0.03	21.04	0.49		0.87	9.13	0.00	0.54		100.01	23	4821
Liffey Head Bog (Ireland)	glass	55.40	0.07	21.87	0.68		0.88	10.32	0.00	0.02		100.00	23	4821
Liffey Head Bog (Ireland)	glass	55.37	0.07	21.56	0.59		0.88	9.53	0.00	0.05		99.99	23	4821
Liffey Head Bog (Ireland)	glass	54.79	0.11	22.04	0.62		0.82	10.15	0.00	0.10		100.00	23	4821
Liffey Head Bog (Ireland)	glass	54.53	0.06	22.21	0.65		0.87	10.33	0.00	0.15		100.02	23	4821
Loch Portain (Scotland)	glass	61.23	0.89	14.69	7.72	0.20	1.17	4.28	4.42	1.69		96.30	2	853
Loch Portain (Scotland)	glass	60.79	0.94	14.84	7.61	0.22	1.27	4.31	4.25	1.68		95.91	2	853
Loch Portain (Scotland)	glass	60.64	0.89	15.11	7.53	0.24	1.20	4.46	4.23	1.69		95.99	2	853
Loch Portain (Scotland)	glass	60.39	0.55	17.43	5.36	0.20	0.81	5.86	5.56	1.18		97.34	2	853
Loch Portain (Scotland)	glass	60.01	0.99	13.36	8.49	0.26	1.75	4.58	4.47	1.75		95.66	2	853
Paela (Iceland)	glass	63.61	1.07	15.56	7.65	0.23	1.19	4.21	4.48	1.83		99.83	2	1301
Paela (Iceland)	glass	63.54	0.88	15.15	7.43	0.20	1.29	4.61	4.38	1.87		99.35	2	1301
Paela (Iceland)	glass	63.44	1.02	15.24	7.86	0.21	1.34	4.69	4.21	1.77		99.78	2	1301
Paela (Iceland)	glass	63.42	0.93	15.15	8.00	0.22	1.29	4.44	4.55	1.75		99.75	2	1301
Paela (Iceland)	glass	63.05	0.97	15.44	7.89	0.24	1.39	4.28	4.50	1.69		99.45	2	1301
Paela (Iceland)	glass	63.02	0.94	15.17	8.14	0.22	1.47	4.70	3.74	1.75		99.15	2	1301
Paela (Iceland)	glass	62.84	1.01	15.03	7.89	0.21	1.36	4.55	4.45	1.76		99.10	2	1301
Paela (Iceland)	glass	62.82	0.97	15.40	8.04	0.22	1.29	4.46	4.58	1.79		99.57	2	1301
Paela (Iceland)	glass	62.76	0.98	15.25	7.91	0.20	1.37	4.75	4.53	1.74		99.49	2	1301
Paela (Iceland)	glass	62.70	1.03	15.57	7.60	0.25	1.32	4.46	4.63	1.59		99.15	2	1301
Paela (Iceland)	glass	62.68	0.77	15.01	7.76	0.26	1.32	4.46	4.69	1.78		98.73	2	1301
Paela (Iceland)	glass	62.34	0.91	15.12	7.86	0.26	1.26	4.47	4.52	1.65		98.39	2	1301
Paela (Iceland)	glass	62.29	0.95	15.17	7.45	0.30	1.25	4.54	4.42	1.71		98.08	2	1301
Paela (Iceland)	glass	62.13	0.96	14.84	7.58	0.29	1.34	4.36	4.68	1.75		97.93	2	1301
Paela (Iceland)	glass	61.98	0.99	15.18	7.98	0.24	1.34	4.55	4.28	1.77		98.31	2	1301
Paela (Iceland)	glass	61.95	0.93	15.13	7.87	0.21	1.26	4.55	4.73	1.74		98.37	2	1301
Paela (Iceland)	glass	61.95	0.93	14.88	8.08	0.12	1.30	4.46	4.34	1.68		97.74	2	1301
Paela (Iceland)	glass	61.93	0.87	15.19	7.69	0.19	1.16	4.39	3.89	1.75		97.06	2	1301
Roman Lode (England)	glass	62.10	1.07	15.53	7.79	0.19	1.46	4.70	4.18	1.82		98.83	22	4823
Roman Lode (England)	glass	61.70	1.06	15.35	8.25	0.22	1.52	4.95	4.19	1.75		99.00	22	4823
Roman Lode (England)	glass	61.20	1.13	15.60	8.44	0.14	1.67	4.95	4.21	1.67		99.01	22	4823
Roman Lode (England)	glass	61.15	1.04	15.42	7.93	0.30	1.44	4.92	4.09	1.70		97.99	22	4823
Roman Lode (England)	glass	61.10	1.12	15.33	8.06	0.26	1.49	4.84	4.09	1.75		98.04	22	4823
Roman Lode (England)	glass	60.91	1.11	15.13	8.27	0.23	1.54	4.98	4.02	1.66		97.84	22	4823
Roman Lode (England)	glass	60.63	1.19	15.45	8.47	0.23	1.66	5.09	4.08	1.69		98.48	22	4823
Roman Lode (England)	glass	60.58	1.11	15.29	7.98	0.27	1.56	4.93	4.07	1.69		97.46	22	4823
Roman Lode (England)	glass	60.54	1.17	15.31	8.41	0.25	1.62	5.04	3.92	1.70		97.95	22	4823
Roman Lode (England)	glass	60.54	1.14	15.13	8.51	0.19	1.59	4.93	3.85	1.67		97.55	22	4823
Roman Lode (England)	glass	60.50	1.18	15.39	8.25	0.23	1.63	5.04	4.09	1.64		97.94	22	4823
Roman Lode (England)	glass	60.44	1.18	15.30	8.35	0.24	1.59	5.06	3.96	1.70		97.81	22	4823
Roman Lode (England)	glass	60.13	1.15	15.31	8.55	0.19	1.57	5.08	3.96	1.65		97.58	22	4823
Roman Lode (England)	glass	59.88	1.18	15.32	8.40	0.20	1.63	5.07	4.04	1.66		97.38	22	4823
Roman Lode (England)	glass	58.48	1.12	15.27	8.41	0.22	1.58	5.19	4.01	1.62		95.90	22	4823
Slieveanorra (Northern Ireland)	glass	62.36	0.91	15.29	7.52	0.26	1.36	4.42	4.09	1.91		98.10	7	2225
Slieveanorra (Northern Ireland)	glass	62.17	0.90	15.07	7.69	0.16	1.28	4.29	3.15	1.67		96.38	7	2225
Slieveanorra (Northern Ireland)	glass	62.07	0.85	14.82	7.92	0.20	1.21	4.64	4.02	1.83		97.57	7	2225
Slieveanorra (Northern Ireland)	glass	61.93	0.91	14.84	8.01	0.16	1.32	4.44	4.25	1.82		97.67	7	2225
Slieveanorra (Northern Ireland)	glass	61.70	0.83	15.34	7.87	0.23	1.28	4.24	4.35	1.76		97.59	7	2225
Slieveanorra (Northern Ireland)	glass	61.19	0.90	15.12	7.87	0.23	1.32	4.73	4.08	1.69		97.12	7	2225
Slieveanorra (Northern Ireland)	glass	61.06	0.97	14.82	8.15	0.27	1.31	4.67	4.41	1.82		97.47	7	2225
Slieveanorra (Northern Ireland)	glass	61.02	0.88	14.97	7.69	0.20	1.28	4.40	4.11	1.79		96.33	7	2225
Slieveanorra (Northern Ireland)	glass	60.46	0.88	15.11	8.02	0.29	1.47	4.61	3.07	1.74		95.64	7	2225
Slieveanorra (Northern Ireland)	glass	60.42	0.91	14.98	8.13	0.19	1.30	4.73	4.61	1.68		96.95	7	2225
Slieveanorra (Northern Ireland)	glass	60.37	0.93	14.52	8.40	0.14	1.43	5.02	4.44	1.44		96.68	7	2225
Sluggan Bog (Northern Ireland)	glass	72.85	0.25	15.09	0.98		0.13	1.91	4.35	1.65		98.43	4	968
Sluggan Bog (Northern Ireland)	glass	71.49	0.26	14.51	3.25		0.13	1.93	4.57	1.68		98.57	4	968
Sluggan Bog (Northern Ireland)	glass	62.19	1.01	16.13	7.99		1.26	4.51	4.14	2.85		99.34	4	968
Sluggan Bog (Northern Ireland)	glass	61.90	1.02	15.63	7.83		1.33	4.42	5.17	1.65		97.37	4	968
Sluggan Bog (Northern Ireland)	glass	61.85	1.02	15.92	7.76		1.25	4.57	4.46	1.69		98.63	4	968
Sluggan Bog (Northern Ireland)	glass	61.80	0.89	16.70	6.62		1.01	4.68	4.51	1.63		98.52	4	968
Sluggan Bog (Northern Ireland)	glass	61.78	0.97	16.47	7.79		1.30	4.38	4.44	1.63		99.06	4	968
Sluggan Bog (Northern Ireland)	glass	61.64	1.01	16.74	7.93		1.33	4.48	4.62	1.67		99.87	4	968
Sluggan Bog (Northern Ireland)	glass	61.24	0.96	16.30	7.96		1.34	4.61	4.53	1.40		98.66	4	968
Sluggan Bog (Northern Ireland)	glass	61.22	1.07	14.93	7.79		1.29	4.44	4.88	1.87		97.70	4	968
Sluggan Bog (Northern Ireland)	glass	61.05	0.98	15.49	7.57		1.24	4.14	3.76	1.48		97.05	4	968
Sluggan Bog (Northern Ireland)	glass	60.80	0.93	15.42	7.32		1.28	4.07	4.55	1.70		95.88	4	968
Sluggan Bog (Northern Ireland)	glass	60.49	1.21	15.61	8.76		1.66	4.89	4.55	1.83		98.75	4	968
Sluggan Bog (Northern Ireland)	glass	60.41	1.18	15.92	8.76		1.80	4.97	5.12	1.83		99.10	4	968
Sluggan Bog (Northern Ireland)	glass	60.10	0.92	14.71	7.65		1.26	4.48	4.95	2.27		95.56	4	968
Sluggan Bog (Northern Ireland)	glass	60.04	1.16	15.45	8.16		1.38	4.48	4.45	1.81		96.92	4	968
Sluggan Bog (Northern Ireland)	glass	59.91	1.02	16.77	7.63		1.36	5.51	4.70	1.74		98.12	4	968
Sluggan Bog (Northern Ireland)	glass	59.73	1.03	15.38	7.55		1.21	4.17	4.40	1.86		95.22	4	968
Sluggan Bog (Northern Ireland)	glass	59.34	1.26	14.04	8.81		1.49	4.44	3.59	2.47		95.37	4	968

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
7	Camca SX100 (University of Edinburgh)	4	20	PAP	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
22	JEOL 8800 Electron Microprobe (University of Oxford)	10	15	ZAF	Mounted in epoxy resin and ground and polished
23	Hitachi Variable Pressure Scanning Electron Microscope S-3500N (Electron Microscope Unit in Trinity College, Dublin)	1	20

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.

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.

853 - Dugmore, A.J., Larsen, G, and Newton, A.J. (1995) Seven tephra isochrones in Scotland. The Holocene 5/3, 257-266.

2816 - Housley, RA, Blockley, SPE, Matthews, IP, MacLeod, A, Lowe, JJ, Ramsay, S, Miller, JJ and Campbell, EN (2010) Late Holocene vegetation and palaeoenvironmental history of the Dunadd area, Argyll, Scotland: chronology of events. Journal of Archaeological Science 37, 577-593.

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

4823 - Matthews, I. (2008) Roman Lode, Exmoor, Devon: Tephrochronology Scientific Dating Report Scientific Dating Report. English Heritage Research Department Report Series 26-2008, 16.

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..

2225 - Swindles, G. (2006) Reconstructions of Holocene climate change from peatland in the north of Ireland. Unpublished PhD thesis, Queen's Unversity, Belfast,

4255 - Watson, E.J., Swindles, G.T., Lawson, I.T. and Savov, I.P. (2015) Spatial variability of tephra and carbon accumulation in a Holocene peatland. Quaternary Science Reviews 124, 248-264.

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 07:12:06 local time, Edinburgh, Scotland, UK.