All analyses of the Hekla 3 Tephra

This search has found 178 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	Cl	F	SO₂	Total	EP	Ref
Audkula (Iceland)	glass	72.93	0.18	14.08	2.97	0.09	0.14	1.96	4.65	2.58					99.58	2	969
Audkula (Iceland)	glass	72.54	0.15	13.97	3.17	0.05	0.14	2.09	4.51	2.43					99.05	2	969
Audkula (Iceland)	glass	72.30	0.13	13.93	2.91	0.05	0.14	2.16	4.62	2.57					98.80	2	969
Audkula (Iceland)	glass	72.20	0.22	13.73	3.03	0.09	0.13	2.00	4.66	2.44					98.49	2	969
Audkula (Iceland)	glass	72.10	0.18	13.93	3.01	0.09	0.12	2.01	4.67	2.42					98.53	2	969
Audkula (Iceland)	glass	71.63	0.18	13.80	2.99	0.08	0.12	2.02	4.65	2.48					97.96	2	969
Audkula (Iceland)	glass	71.36	0.18	13.80	3.02	0.15	0.12	2.06	4.37	2.37					97.42	2	969
Audkula (Iceland)	glass	70.70	0.19	13.64	3.04	0.07	0.15	1.95	4.18	2.58					96.50	2	969
Audkula (Iceland)	glass	70.12	0.23	14.04	3.11	0.13	0.11	1.94	4.61	2.48					96.77	2	969
Audkula (Iceland)	glass	69.88	0.19	14.24	3.01	0.07	0.12	1.95	4.59	2.28					96.33	2	969
Audkula (Iceland)	glass	68.11	0.40	14.47	5.14	0.10	0.34	3.27	4.32	2.15					98.30	2	969
Audkula (Iceland)	glass	65.22	0.43	14.81	6.66	0.13	0.58	3.57	4.53	1.83					97.77	2	969
Audkula (Iceland)	glass	64.71	0.50	14.52	5.91	0.19	0.42	3.32	4.45	2.17					96.21	2	969
Audkula (Iceland)	glass	64.45	0.60	15.19	7.23	0.23	0.79	3.80	3.92	1.92					98.12	2	969
Audkula (Iceland)	glass	64.17	0.63	14.88	7.53	0.27	0.85	3.89	4.42	1.88					98.51	2	969
Audkula (Iceland)	glass	63.85	0.49	14.48	5.86	0.21	0.49	3.71	4.56	1.90					95.54	2	969
Audkula (Iceland)	glass	63.46	0.56	15.03	6.37	0.18	0.61	3.76	4.52	1.84					96.34	2	969
Audkula (Iceland)	glass	63.16	0.68	16.83	5.82	0.15	0.65	4.91	5.34	1.33					98.87	2	969
Audkula (Iceland)	glass	60.83	0.74	16.86	7.16	0.24	0.78	5.22	5.13	1.37					98.32	2	969
Brúnavatn (Faroe Islands)	glass	75.82	0.07	13.10	1.76	0.11	0.03	1.52	4.68	2.80	0.01				99.89	35	2843
Brúnavatn (Faroe Islands)	glass	73.66	0.17	14.48	2.96	0.05	0.15	2.17	4.58	2.46	0.00				100.68	35	2843
Brúnavatn (Faroe Islands)	glass	67.60	0.48	15.41	5.67	0.16	0.45	3.74	4.44	1.93	0.01				99.90	35	2843
Brúnavatn (Faroe Islands)	glass	67.54	0.46	15.51	5.78	0.15	0.48	3.75	4.41	2.02	0.04				100.13	35	2843
Brúnavatn (Faroe Islands)	glass	66.92	0.49	15.59	5.86	0.14	0.50	3.86	4.59	2.07	0.17				100.18	35	2843
Brúnavatn (Faroe Islands)	glass	66.73	0.36	15.00	5.71	0.10	0.37	3.58	4.65	2.02	0.09				98.60	35	2843
Brúnavatn (Faroe Islands)	glass	63.34	0.64	15.22	8.85	0.31	0.56	4.94	4.46	1.83	0.19				100.33	35	2843
Degerö Stormyr (Sweden)	glass	74.59	0.09	12.77	1.94	0.08	0.02	1.33	4.46	3.00	0.02				98.30	16	4505
Degerö Stormyr (Sweden)	glass	74.55	0.22	12.94	1.15	0.05	0.33	1.38	3.38	2.98	0.04				97.00	16	4505
Degerö Stormyr (Sweden)	glass	73.69	0.09	12.51	1.78	0.08	0.02	1.40	3.80	2.99	0.03				96.39	16	4505
Degerö Stormyr (Sweden)	glass	73.62	0.18	14.18	3.16	0.09	0.13	2.03	4.01	2.62	0.04				100.06	16	4505
Degerö Stormyr (Sweden)	glass	73.43	0.09	12.43	1.92	0.08	0.00	1.37	4.57	2.91	0.01				96.80	16	4505
Degerö Stormyr (Sweden)	glass	72.84	0.18	13.83	2.96	0.10	0.12	2.00	5.00	2.52	0.02				99.56	16	4505
Degerö Stormyr (Sweden)	glass	72.77	0.19	13.92	3.10	0.10	0.11	1.90	4.84	2.52	0.02				99.48	16	4505
Degerö Stormyr (Sweden)	glass	72.67	0.18	13.98	3.02	0.10	0.14	2.14	5.04	2.54	0.03				99.85	16	4505
Degerö Stormyr (Sweden)	glass	72.46	0.18	13.72	2.91	0.10	0.09	2.06	4.70	2.45	0.02				98.69	16	4505
Degerö Stormyr (Sweden)	glass	72.17	0.18	13.45	3.20	0.11	0.12	2.04	4.80	2.56	0.03				98.65	16	4505
Degerö Stormyr (Sweden)	glass	72.15	0.18	14.16	2.79	0.10	0.15	2.00	5.00	2.65	0.04				99.22	16	4505
Degerö Stormyr (Sweden)	glass	71.94	0.18	13.47	2.80	0.09	0.11	1.97	4.52	2.61	0.03				97.72	16	4505
Degerö Stormyr (Sweden)	glass	71.61	0.87	12.15	3.83	0.12	0.75	2.95	3.87	2.42	0.21				98.80	16	4505
Degerö Stormyr (Sweden)	glass	71.13	0.18	13.63	3.01	0.10	0.09	2.01	3.77	2.63	0.03				96.57	16	4505
Degerö Stormyr (Sweden)	glass	70.66	0.23	13.96	3.51	0.12	0.13	2.38	4.80	2.43	0.04				98.27	16	4505
Degerö Stormyr (Sweden)	glass	69.96	0.14	13.27	2.71	0.09	0.10	1.99	4.02	2.63	0.05				94.96	16	4505
Degerö Stormyr (Sweden)	glass	69.48	0.35	13.00	4.77	0.22	0.08	0.50	6.70	4.93	0.04				100.06	16	4505
Degerö Stormyr (Sweden)	glass	69.32	0.23	14.01	3.65	0.14	0.13	2.37	4.74	2.46	0.05				97.11	16	4505
Degerö Stormyr (Sweden)	glass	68.59	0.35	12.54	4.84	0.21	0.09	0.51	6.49	4.55	0.03				98.20	16	4505
Degerö Stormyr (Sweden)	glass	68.42	0.37	14.92	5.34	0.17	0.37	3.18	4.42	2.15	0.10				99.45	16	4505
Degerö Stormyr (Sweden)	glass	67.13	0.42	14.28	5.65	0.19	0.45	3.31	5.09	2.09	0.11				98.72	16	4505
Helluvaðstjörn (Iceland)	glass	70.63	0.19	13.93	2.95	0.12	0.13	1.91	4.45	2.56	0.04				96.90	7	2136
Helluvaðstjörn (Iceland)	glass	70.47	0.20	13.86	3.10	0.09	0.14	1.96	4.34	2.54	0.06				96.76	7	2136
Helluvaðstjörn (Iceland)	glass	70.35	0.22	14.00	2.91	0.12	0.13	1.93	4.46	2.56	0.02				96.68	7	2136
Helluvaðstjörn (Iceland)	glass	70.06	0.21	13.76	3.08	0.11	0.13	1.91	4.97	2.64	0.02				96.89	7	2136
Helluvaðstjörn (Iceland)	glass	69.76	0.18	13.49	2.97	0.14	0.13	1.94	4.50	2.54	0.02				95.65	7	2136
Helluvaðstjörn (Iceland)	glass	69.57	0.21	13.60	3.01	0.15	0.16	2.01	5.08	2.37	-0.01				96.15	7	2136
Helluvaðstjörn (Iceland)	glass	69.45	0.18	13.86	2.85	0.16	0.14	2.01	4.77	2.39	0.04				95.85	7	2136
Helluvaðstjörn (Iceland)	glass	68.84	0.19	13.80	2.87	0.11	0.10	1.89	4.84	2.38	0.02				95.05	7	2136
Helluvaðstjörn (Iceland)	glass	68.61	0.26	14.07	3.50	0.18	0.13	2.30	4.61	2.33	0.03				96.02	7	2136
Helluvaðstjörn (Iceland)	glass	65.60	0.35	14.39	4.83	0.20	0.30	3.05	4.84	2.08	0.07				95.70	7	2136
Helluvaðstjörn (Iceland)	glass	64.87	0.46	14.85	5.92	0.20	0.51	3.35	4.30	1.84	0.13				96.43	7	2136
Jardelunder Moor (Germany)	glass	73.92	0.25	14.44	2.74	0.20	0.12	1.99	4.16	2.18	0.00	0.09	0.00	0.21	98.07	25	1624
Jardelunder Moor (Germany)	glass	73.78	0.32	14.00	2.95	0.09	0.06	2.00	4.31	2.49	0.00	0.11	0.00	0.00	96.47	25	1624
Jardelunder Moor (Germany)	glass	73.69	0.36	14.34	2.76	0.00	0.10	1.93	4.03	2.79	0.00	0.00	0.00	0.00	97.33	25	1624
Jardelunder Moor (Germany)	glass	73.00	0.07	14.32	3.32	0.08	0.16	2.15	4.33	2.57	0.00	0.10	0.00	0.02	97.59	25	1624
Jardelunder Moor (Germany)	glass	72.07	0.39	14.33	3.78	0.08	0.21	2.71	4.18	2.26	0.00	0.09	0.00	0.00	96.50	25	1624
Jardelunder Moor (Germany)	glass	71.96	0.36	14.88	3.82	0.00	0.15	2.38	4.13	2.31	0.00	0.04	0.00	0.14	95.62	25	1624
Jardelunder Moor (Germany)	glass	69.79	0.40	15.08	4.86	0.08	0.29	3.11	4.20	2.20	0.00	0.12	0.00	0.00	95.78	25	1624
Jardelunder Moor (Germany)	glass	69.48	0.25	15.51	5.07	0.12	0.34	2.99	3.93	2.30	0.00	0.09	0.00	0.10	95.93	25	1624
Jardelunder Moor (Germany)	glass	68.78	0.04	15.65	5.32	0.23	0.31	3.26	4.14	2.27	0.01	0.01	0.00	0.00	96.07	25	1624
Jardelunder Moor (Germany)	glass	68.65	0.39	15.03	5.66	0.29	0.28	3.39	4.16	2.15	0.00	0.11	0.00	0.00	96.05	25	1624
Klocka Bog (Sweden)	glass	71.85	0.24	14.21	2.89	0.09	0.15	2.01	3.79	2.46					97.69	2	1794
Klocka Bog (Sweden)	glass	71.58	0.17	14.01	3.16	0.08	0.13	1.85	4.29	2.58					97.85	2	1794
Klocka Bog (Sweden)	glass	70.84	0.21	14.03	3.09	0.12	0.14	1.94	4.08	2.51					96.96	2	1794
Klocka Bog (Sweden)	glass	69.93	0.22	13.97	2.98	0.09	0.16	1.81	3.90	2.37					95.43	2	1794
Klocka Bog (Sweden)	glass	69.90	0.30	14.43	3.78	0.08	0.16	2.44	3.76	2.45					97.30	2	1794
Klocka Bog (Sweden)	glass	68.00	0.35	14.53	5.29	0.16	0.35	3.04	3.52	2.07					97.31	2	1794
Klocka Bog (Sweden)	glass	67.59	0.39	14.70	5.50	0.19	0.39	3.14	3.88	2.20					97.98	2	1794
Klocka Bog (Sweden)	glass	67.01	0.45	14.88	5.57	0.15	0.37	3.21	3.84	2.18					97.66	2	1794
Klocka Bog (Sweden)	glass	66.85	0.40	14.76	5.24	0.15	0.33	3.10	3.52	2.01					96.36	2	1794
Kortlandamossen (Sweden)	glass	72.72	0.22	13.78	2.98	0.09	0.11	2.07	3.88	2.58					98.43	2	1680
Kortlandamossen (Sweden)	glass	72.56	0.27	13.97	2.98	0.06	0.12	1.90	4.02	2.55					98.41	2	1680
Kortlandamossen (Sweden)	glass	71.86	0.21	13.91	2.99	0.10	0.13	2.02	4.18	2.54					97.93	2	1680
Kortlandamossen (Sweden)	glass	71.77	0.21	14.21	3.03	0.07	0.16	1.96	3.07	1.92					96.40	2	1680
Kortlandamossen (Sweden)	glass	71.39	0.18	13.86	2.91	0.10	0.10	1.94	3.89	2.49					96.85	2	1680
Kortlandamossen (Sweden)	glass	70.39	0.14	13.75	2.95	0.07	0.11	2.03	3.80	2.65					95.90	2	1680
Lake Furskogstjärnet (Sweden)	glass	66.42	0.61	14.61	5.82	0.36	0.59	3.39	4.11	1.95					97.86	2	1598
Lake Furskogstjärnet (Sweden)	glass	66.34	0.36	14.42	6.39	0.17	0.59	3.36	4.18	1.88					97.69	2	1598
Lake Furskogstjärnet (Sweden)	glass	66.17	0.39	14.56	5.75	0.18	0.56	3.26	4.23	1.95					97.05	2	1598
Lake Furskogstjärnet (Sweden)	glass	66.11	0.43	14.64	5.66	0.19	0.56	3.51	3.95	1.96					97.01	2	1598
Lake Furskogstjärnet (Sweden)	glass	66.08	0.36	14.73	5.51	0.24	0.60	3.54	4.33	2.02					97.41	2	1598
Lake Furskogstjärnet (Sweden)	glass	66.03	0.33	14.72	5.39	0.15	0.61	3.11	4.27	1.89					96.50	2	1598
Lake Furskogstjärnet (Sweden)	glass	65.94	0.44	14.78	5.92	0.13	0.64	3.31	4.07	1.97					97.20	2	1598
Lake Furskogstjärnet (Sweden)	glass	65.86	0.35	14.43	5.66	0.16	0.57	3.26	4.49	2.12					96.90	2	1598
Lake Furskogstjärnet (Sweden)	glass	65.75	0.43	14.64	5.71	0.18	0.59	3.61	4.15	2.08					97.14	2	1598
Mosstakanmossen (Sweden)	glass	73.51	0.23	12.87	3.42	0.10	0.18	1.55	4.02	2.70					98.58	2	1680
Mosstakanmossen (Sweden)	glass	71.89	0.21	13.97	2.98	0.15	0.13	1.94	4.22	2.61					98.10	2	1680
Mosstakanmossen (Sweden)	glass	71.73	0.19	13.84	3.04	0.16	0.16	2.13	4.20	2.41					97.85	2	1680
Mosstakanmossen (Sweden)	glass	71.50	0.23	13.89	3.09	0.12	0.15	2.04	3.90	2.42					97.35	2	1680
Mosstakanmossen (Sweden)	glass	71.09	0.16	14.07	3.00	0.16	0.12	2.15	4.33	2.39					97.48	2	1680
Mosstakanmossen (Sweden)	glass	70.79	0.26	13.84	2.79	0.16	0.16	1.98	4.09	2.45					96.53	2	1680
Mosstakanmossen (Sweden)	glass	70.52	0.19	13.04	2.97	0.15	0.15	1.95	3.79	2.36					95.12	2	1680
Mosstakanmossen (Sweden)	glass	67.58	0.39	14.90	5.31	0.26	0.48	3.07	3.98	2.12					98.09	2	1680
Mosstakanmossen (Sweden)	glass	67.23	0.38	14.78	4.98	0.20	0.32	2.98	4.10	2.13					97.11	2	1680
Mosstakanmossen (Sweden)	glass	66.25	0.39	14.26	5.32	0.17	0.35	3.05	3.95	2.01					95.74	2	1680
Orrastaðir (Iceland)	glass	73.38	0.14	14.07	3.13	0.10	0.16	2.01	4.26	2.68					99.93	2	969
Orrastaðir (Iceland)	glass	73.25	0.15	14.21	3.08	0.07	0.11	2.10	4.14	2.70					99.82	2	969
Orrastaðir (Iceland)	glass	72.95	0.20	14.08	3.23	0.12	0.20	2.08	4.39	2.61					99.88	2	969
Orrastaðir (Iceland)	glass	71.92	0.19	14.23	3.05	0.15	0.14	2.12	4.30	2.82					98.92	2	969
Orrastaðir (Iceland)	glass	71.61	0.18	14.07	3.08	0.08	0.14	2.02	4.41	2.66					98.25	2	969
Orrastaðir (Iceland)	glass	71.55	0.20	13.93	4.61	0.10	0.23	2.21	3.89	2.62					99.34	2	969
Orrastaðir (Iceland)	glass	71.44	0.12	14.08	2.91	0.14	0.14	1.96	4.50	2.49					97.78	2	969
Orrastaðir (Iceland)	glass	71.41	0.16	13.85	2.85	0.12	0.14	2.02	4.39	2.82					97.76	2	969
Orrastaðir (Iceland)	glass	70.92	0.18	13.79	3.03	0.09	0.16	2.01	4.23	2.38					96.81	2	969
Orrastaðir (Iceland)	glass	69.77	0.15	13.96	3.09	0.06	0.08	1.86	3.92	2.66					95.56	2	969
Orrastaðir (Iceland)	glass	68.03	0.54	14.83	5.68	0.16	0.43	3.65	4.63	1.71					99.67	2	969
Orrastaðir (Iceland)	glass	67.71	0.37	14.58	5.40	0.18	0.41	3.51	4.07	2.29					98.53	2	969
Orrastaðir (Iceland)	glass	67.14	0.47	14.96	5.86	0.16	0.47	3.46	4.24	1.84					98.63	2	969
Orrastaðir (Iceland)	glass	66.99	0.35	14.77	5.81	0.22	0.44	3.18	4.27	2.17					98.20	2	969
Orrastaðir (Iceland)	glass	66.82	0.51	14.94	6.58	0.19	0.60	3.73	3.89	1.91					99.17	2	969
Orrastaðir (Iceland)	glass	66.50	0.56	15.01	6.75	0.22	0.66	3.81	4.24	2.14					99.90	2	969
Orrastaðir (Iceland)	glass	66.22	0.42	14.67	6.11	0.17	0.55	3.81	4.02	1.91					97.88	2	969
Orrastaðir (Iceland)	glass	65.99	0.49	14.96	6.32	0.19	0.60	3.74	4.54	2.02					98.87	2	969
Orrastaðir (Iceland)	glass	65.97	0.68	15.44	6.83	0.16	0.62	3.84	3.91	1.91					99.35	2	969
Orrastaðir (Iceland)	glass	65.61	0.46	14.94	6.19	0.19	0.47	3.46	4.33	2.09					97.74	2	969
Orrastaðir (Iceland)	glass	65.01	0.62	14.98	7.22	0.14	0.67	4.03	4.21	1.89					98.78	2	969
Orrastaðir (Iceland)	glass	64.38	0.50	14.71	6.23	0.18	0.63	3.48	4.20	1.87					96.20	2	969
Orrastaðir (Iceland)	glass	64.38	0.47	14.86	6.57	0.25	0.63	3.63	4.28	2.07					97.13	2	969
Orrastaðir (Iceland)	glass	63.93	0.65	15.16	6.64	0.17	0.73	4.10	4.08	1.88					97.34	2	969
Orrastaðir (Iceland)	glass	63.60	0.67	15.09	7.94	0.27	0.93	4.26	4.15	1.79					98.72	2	969
Orrastaðir (Iceland)	glass	63.35	0.76	15.15	7.97	0.23	0.98	4.55	4.14	1.80					98.93	2	969
Orrastaðir (Iceland)	glass	63.09	0.89	15.22	8.36	0.19	1.05	4.65	3.93	1.76					99.15	2	969
Orrastaðir (Iceland)	glass	63.07	0.63	15.29	7.62	0.23	0.86	4.52	4.03	1.99					98.24	2	969
Orrastaðir (Iceland)	glass	62.84	0.74	14.89	7.64	0.21	0.86	4.28	4.02	1.76					97.25	2	969
Orrastaðir (Iceland)	glass	56.82	1.89	13.28	10.99	0.23	2.56	6.24	3.76	1.51					97.28	2	969
Orrastaðir (Iceland)	glass	56.18	1.23	16.81	8.68	0.24	2.62	7.22	4.88	1.81					99.67	2	969
Slettadalur (Iceland)	glass	70.55	0.20	14.06	3.11	0.16	0.12	2.03	4.17	2.53					96.92	2	969
Slettadalur (Iceland)	glass	69.89	0.17	13.90	3.08	0.11	0.19	2.05	4.09	2.60					96.08	2	969
Slettadalur (Iceland)	glass	64.14	0.62	14.65	6.60	0.20	0.64	3.67	4.47	1.79					96.78	2	969
Slettadalur (Iceland)	glass	63.82	0.60	14.72	6.25	0.25	0.60	3.52	4.19	1.80					95.77	2	969
Slettadalur (Iceland)	glass	63.10	0.75	14.89	7.94	0.24	0.99	4.40	4.85	1.49					98.65	2	969
Slettadalur (Iceland)	glass	62.03	0.76	14.99	8.21	0.25	0.96	4.19	4.48	1.75					97.62	2	969
Slettadalur (Iceland)	glass	61.91	0.70	14.92	7.51	0.23	0.81	4.02	4.30	1.83					96.24	2	969
Slettadalur (Iceland)	glass	61.78	0.68	14.43	8.08	0.23	0.92	4.23	4.24	1.69					96.28	2	969
Slettadalur (Iceland)	glass	61.10	0.85	14.96	8.58	0.19	1.11	4.47	4.29	1.68					97.23	2	969
Slettadalur (Iceland)	glass	61.09	0.80	14.77	7.80	0.20	0.98	4.24	3.95	1.71					95.53	2	969
Solheimahals (Iceland)	glass	72.39	0.23	13.62	3.09	0.13	0.13	2.14	4.26	2.65					98.66	2	969
Solheimahals (Iceland)	glass	72.35	0.19	13.88	2.96	0.07	0.13	2.12	4.22	2.35					98.28	2	969
Solheimahals (Iceland)	glass	68.63	0.44	14.70	5.14	0.17	0.34	3.14	4.28	2.07					98.91	2	969
Solheimahals (Iceland)	glass	68.11	0.34	14.56	5.31	0.17	0.33	3.09	4.09	2.20					98.20	2	969
Solheimahals (Iceland)	glass	67.08	0.45	14.69	5.65	0.16	0.42	3.35	4.22	2.09					98.11	2	969
Solheimahals (Iceland)	glass	66.90	0.38	14.27	4.82	0.17	0.35	2.84	3.80	2.00					95.55	2	969
Solheimahals (Iceland)	glass	66.76	0.58	14.95	6.25	0.12	0.58	3.60	4.08	2.00					98.91	2	969
Solheimahals (Iceland)	glass	65.38	0.66	14.66	6.85	0.18	0.58	3.34	3.81	1.88					97.35	2	969
Solheimahals (Iceland)	glass	65.22	0.67	14.91	7.61	0.24	0.72	4.02	4.23	1.75					99.37	2	969
Solheimahals (Iceland)	glass	64.59	0.66	14.66	7.74	0.25	0.70	3.96	3.77	1.82					98.16	2	969
Solheimahals (Iceland)	glass	64.28	0.55	14.40	6.40	0.21	0.58	3.79	3.89	1.77					95.87	2	969
Solheimahals (Iceland)	glass	63.79	0.76	14.81	7.07	0.20	0.74	4.07	3.75	1.72					96.91	2	969
Solheimahals (Iceland)	glass	63.74	0.63	14.95	7.02	0.20	0.77	3.99	3.84	1.70					96.84	2	969
Solheimahals (Iceland)	glass	63.58	0.81	15.06	7.53	0.20	0.83	4.26	4.27	1.39					97.94	2	969
Solheimahals (Iceland)	glass	62.05	0.76	14.36	7.78	0.21	0.81	4.47	3.49	1.69					95.62	2	969
Tungunesmuli (Iceland)	glass	69.02	0.41	14.84	5.20	0.24	0.38	3.22	4.78	1.92					100.00	2	969
Tungunesmuli (Iceland)	glass	68.20	0.45	14.45	5.45	0.21	0.40	3.31	4.70	2.20					99.37	2	969
Tungunesmuli (Iceland)	glass	68.02	0.41	14.69	5.32	0.20	0.43	3.37	4.49	2.00					98.93	2	969
Tungunesmuli (Iceland)	glass	66.24	0.59	15.17	6.48	0.27	0.60	3.53	4.54	2.01					99.44	2	969
Tungunesmuli (Iceland)	glass	66.24	0.60	15.11	6.53	0.19	0.71	3.61	4.71	2.00					99.69	2	969
Tungunesmuli (Iceland)	glass	65.61	0.66	14.81	7.00	0.22	0.72	3.75	4.44	1.93					99.13	2	969
Tungunesmuli (Iceland)	glass	65.30	0.62	14.76	6.76	0.23	0.62	3.58	4.19	1.73					97.80	2	969
Tungunesmuli (Iceland)	glass	65.07	0.61	14.63	6.39	0.24	0.71	3.59	4.32	1.91					97.46	2	969
Tungunesmuli (Iceland)	glass	63.82	0.62	14.71	6.80	0.20	0.68	3.76	4.24	1.87					96.71	2	969
Tungunesmuli (Iceland)	glass	63.72	0.66	14.84	7.35	0.29	0.94	4.09	4.41	1.82					98.12	2	969
Ulvåmossen (Sweden)	glass	72.86	0.21	13.53	2.75	0.13	0.05	2.11	3.74	2.52					97.91	2	1680
Ulvåmossen (Sweden)	glass	72.66	0.20	14.15	3.02	0.09	0.11	1.90	4.03	2.63					98.80	2	1680
Ulvåmossen (Sweden)	glass	72.34	0.24	14.16	2.89	0.06	0.13	1.91	4.11	2.60					98.44	2	1680
Ulvåmossen (Sweden)	glass	72.02	0.20	13.96	2.84	0.12	0.18	2.07	3.91	2.63					97.94	2	1680
Ulvåmossen (Sweden)	glass	71.74	0.15	14.13	3.05	0.13	0.13	2.03	4.42	2.45					98.23	2	1680
Ulvåmossen (Sweden)	glass	71.51	0.22	13.97	3.01	0.08	0.09	2.05	4.17	2.38					97.48	2	1680
Ulvåmossen (Sweden)	glass	71.17	0.22	13.65	3.12	0.04	0.11	1.91	3.93	2.63					96.77	2	1680
Ulvåmossen (Sweden)	glass	71.16	0.21	13.97	3.15	0.09	0.10	1.97	4.37	2.49					97.51	2	1680
Ulvåmossen (Sweden)	glass	71.02	0.21	13.76	2.73	0.07	0.13	1.94	3.93	2.61					96.40	2	1680
Ulvåmossen (Sweden)	glass	70.27	0.22	13.64	2.81	0.07	0.08	1.86	3.84	2.37					95.17	2	1680

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
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
25	Cameca SX-50 (GEOMAR, Kiel)	6	15
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.

1794 - Bergman, J., Wastegard, S., Hammarlund, D., Wohlifarth, B. and Roberts, S.J. (2004) Holocene tephra horizons at Klocka Bog, west-central Sweden: aspects of reproducibility in subarctic peat deposits. Journal of Quaternary Science 19, 241-249..

1680 - Boygle, J. (2004) Towards a Holocene tephrochronology for Sweden: geochemistry and correlation with the North Atlantic tephra stratigraphy. Journal of Quaternary Science 19, 103-109..

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

2136 - Lawson, I.T., Gathorne-Hardy, F.J., Church, M.J., Newton, A.J., Edwards, K.J., Dugmore, A.J. and Einarsson, A. (2007) Environmental impacts of the Norse settlement: palaeoenvironmental data from Myvatnssveit, northern Iceland. Boreas 36, 1-19.

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.

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.

1598 - Zillen, L.M., Wastegard, S. and Snowball, I.F. (2002) Calendar year ages of three mid-Holocene tephra layers identified in varved lake sediments in west central Sweden. Quaternary Science Reviews 21, 1583-1591..

1624 - van den Bogaard, C. and Schminke, H.U. (2002) Linking the North Atlantic to central Europe: a high-resolution Holocene tephrochronological record from northern Germany. Journal of Quaternary Science 17, 3-20..

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 07:24:46 local time, Edinburgh, Scotland, UK.