Laacher See Tephra at Vallensg�rd Mose (All profiles)

This search has found 20 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

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profile	phase	SiO₂	TiO₂	Al₂O₃	FeO	MnO	MgO	CaO	Na₂O	K₂O	Total	EP	Ref
Core 1	glass	59.36	0.43	20.77	1.92	0.21	0.21	2.15	6.77	6.72	98.61	11	2205
Core 1	glass	59.24	0.44	20.44	2.18	0.18	0.24	1.54	7.05	7.08	98.47	11	2205
Core 1	glass	58.33	0.46	20.76	2.19	0.17	0.28	2.03	7.73	6.50	98.52	11	2205
Core 1	glass	58.23	0.40	20.37	2.32	0.21	0.22	1.49	6.84	7.14	97.32	11	2205
Core 1	glass	58.15	0.55	19.76	2.35	0.14	0.27	1.53	7.44	6.77	97.01	11	2205
Core 1	glass	58.03	0.42	19.86	2.05	0.20	0.27	1.55	6.78	7.46	96.68	11	2205
Core 1	glass	55.76	0.10	22.45	1.54	0.65	0.07	0.35	10.43	4.88	96.23	11	2205
Core 1	glass	55.66	0.08	22.27	1.50	0.55	0.04	0.37	10.26	4.97	95.69	11	2205
Core 1	glass	55.60	0.11	22.97	1.53	0.52	0.06	0.37	11.18	4.86	97.22	11	2205
Core 1	glass	55.50	0.12	22.53	1.65	0.46	0.04	0.37	10.44	4.72	95.83	11	2205
Core 3	glass	61.02	0.46	20.59	1.84		0.18	2.22	6.94	5.98	99.22	4	2205
Core 3	glass	60.27	0.45	20.65	2.23		0.19	1.37	7.73	6.82	99.71	4	2205
Core 3	glass	60.19	0.54	20.56	2.29		0.22	1.44	7.53	6.91	99.67	4	2205
Core 3	glass	60.17	0.46	20.50	1.90		0.24	1.78	7.40	6.43	98.88	4	2205
Core 3	glass	60.05	0.42	20.40	1.77		0.19	1.70	7.03	6.48	98.04	4	2205
Core 3	glass	59.64	0.50	20.30	2.26		0.24	1.37	7.29	6.91	98.52	4	2205
Core 3	glass	59.58	0.41	21.51	2.12		0.18	1.15	8.70	6.16	99.81	4	2205
Core 3	glass	59.52	0.55	20.12	2.17		0.25	1.38	7.50	6.84	98.32	4	2205
Core 3	glass	59.26	0.48	20.24	2.20		0.25	1.55	7.34	6.84	98.15	4	2205
Core 3	glass	56.12	0.17	22.47	1.64		0.05	0.32	10.45	4.24	95.45	4	2205
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.

	4
Instrument:	Jeol 733 Superprobe (Queens University, Belfast)
Acc. Volt:	15
Beam Current:	10
Beam diameter:	8 �m
Beam raster diameter:	n/a
Sample:	Thin section mounted in araldite then ground and polished
Correction:	ZAF
Comments:	n/a

	11
Instrument:	Camca SX100 (University of Edinburgh)
Acc. Volt:	20
Beam Current:	10
Beam diameter:	1 �m
Beam raster diameter:	10 �m
Sample:	Thin section mounted in araldite then ground and polished
Correction:	PAP
Comments:	n/a

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.

2205 - Turney, C.S.M., Van den Burg, K., Wastegard, S., Davies, S.M., Whitehouse, N.J., Pilcher, J.R. and Callaghan, C. (2006) North European last glacial-interglacial transition (LGIT; 15-9 ka) tephrochronology: extended limits and new events. Journal of Quaternary Science 21, 335-345.

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 23/4/2024 at 17:15:39 local time, Edinburgh, Scotland, UK.