Vedde Tephra at Gj�lvatn

This search has found 30 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.

Geochemistry

To download this data as a tab delimited file click here:

	SiO₂	TiO₂	Al₂O₃	FeO	MnO	MgO	CaO	Na₂O	K₂O	Total	EP	Ref
Glass	74.15	0.24	13.59	3.51	0.16	0.20	1.17	2.88	3.43	99.33	20	352
Glass	73.83	0.14	13.57	3.73	0.16	0.18	1.10	2.74	3.46	98.91	20	352
Glass	72.37	0.36	13.01	3.88	0.17	0.23	1.55	1.97	3.89	97.43	20	352
Glass	72.29	0.19	13.45	3.70	0.34	0.20	1.28	2.23	3.75	97.43	20	352
Glass	71.54	0.12	13.03	3.81	0.00	0.19	1.19	2.35	3.12	95.35	20	352
Glass	71.54	0.00	13.29	3.69	0.09	0.20	1.23	2.37	3.54	95.95	20	352
Glass	71.41	0.00	13.10	3.78	0.18	0.24	1.36	2.09	3.28	95.44	20	352
Glass	71.40	0.22	13.49	3.68	0.11	0.19	1.22	2.38	3.42	96.11	20	352
Glass	71.12	0.52	13.14	3.94	0.14	0.14	1.48	2.79	5.02	98.29	20	352
Glass	58.34	2.71	13.31	10.19	0.28	3.04	6.25	2.15	2.08	98.35	20	352
Glass	54.34	2.84	13.14	11.34	0.29	3.76	7.24	3.11	1.50	97.56	20	352
Glass	53.28	3.01	12.70	11.99	0.25	3.57	7.02	2.40	1.43	95.65	20	352
Glass	52.69	3.38	13.07	12.23	0.32	3.85	7.52	3.11	1.44	97.61	20	352
Glass	52.55	4.09	13.00	12.68	0.29	4.34	7.91	3.28	1.19	99.33	20	352
Glass	52.07	3.21	12.77	12.91	0.17	3.89	7.66	2.54	1.32	96.54	20	352
Glass	51.57	3.77	13.07	12.20	0.18	3.81	7.71	2.39	1.42	96.12	20	352
Glass	51.44	3.31	12.78	12.28	0.18	3.68	7.58	2.79	1.31	95.35	20	352
Glass	51.16	3.53	12.70	12.61	0.18	3.85	7.61	2.52	1.20	95.36	20	352
Glass	50.89	4.04	12.81	12.90	0.39	4.25	9.12	3.20	1.32	98.92	20	352
Glass	49.42	3.97	13.14	13.47	0.17	4.47	8.35	3.05	0.99	97.03	20	352
Glass	49.28	4.75	12.69	13.85	0.23	4.88	8.69	2.95	0.87	98.19	20	352
Glass	49.02	4.20	13.04	13.78	0.35	4.55	8.52	3.16	0.92	97.54	20	352
Glass	47.84	4.23	12.63	14.13	0.13	4.75	9.17	3.17	0.78	96.83	20	352
Glass	47.83	4.80	13.19	13.62	0.28	4.66	10.53	2.01	0.98	97.90	20	352
Glass	47.66	4.48	12.41	14.50	0.21	4.72	8.96	2.82	0.80	96.56	20	352
Glass	47.55	4.35	12.63	14.10	0.28	4.91	8.84	2.91	1.00	96.57	20	352
Glass	47.26	4.52	12.54	14.74	0.24	4.93	10.91	3.16	0.87	99.17	20	352
Glass	47.10	4.27	12.84	13.98	0.29	4.80	9.18	2.91	0.86	96.23	20	352
Glass	46.95	4.58	12.67	14.96	0.34	5.02	9.29	2.63	0.70	97.14	20	352
Glass	46.21	4.35	12.73	14.65	0.17	5.06	9.78	2.64	0.83	96.42	20	352
FeO: total iron is represented as FeO *original totals for normalised data (where applicable)

Instrument Conditions

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

Analysis Conditions (EP):	20
Instrument:	ARL SEMQ
Beam Current:	5 nA
Acc. Volt:	15 kV
Sample:	Thin section
Correction:	MAGIC IV
Comments:

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.

352: Mangerud, J., Lie, S.E., Furnes, H., Kristiansen, I.L., and Lomo, L. (1984) A Younger Dryas ash bed in western Norway and its possible correlations with tephra in cores from the Norwegian Sea and the North Atlantic. Quaternary Research 21, 85-104.

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 18/4/2024 at 23:33:39 local time, Edinburgh, Scotland, UK.