Laacher See Tephra at Vallensgård Mose (All Analyses)

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.

FeO: total iron is represented as FeO
*original totals for normalised data (where applicable)
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

Return to Vallensgård Mose.

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	Beam	Sample
4	Jeol 733 Superprobe (Queens University, Belfast)	10	15	ZAF		Thin section mounted in araldite then ground and polished
9	Cameca SX100	10	20		10	mounted in a resin block and polished to a flat surface
10	Cameca SX50 (Pierre and Marie Curi University of Paris)	10	15			mounted in a resin and polished to a flat surface
11	Camca SX100 (University of Edinburgh)	10	20	PAP	10	Thin section mounted in araldite then ground and polished
13	Camca SX100 (Institute of Minerology, University of Hanover)	4	15	PAP
14	Cameca SX100 (University of Cambridge, Earth Sciences)	6	15			Mounted on epoxy stubs and sectioned, ground and polished.
15	JEOL JXA-8600 (University of Oxford, Research Lab. for Arch)	6	15			Mounted on epoxy stubs and sectioned, ground and polished.

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.

358 - Bennett, K.D., Boreham, S., Sharp, M.J., and Switsur, V.R. (1992) Holocene history of environment, vegetation and human settlement on Catta Ness, Lunnasting, Shetland. Journal of Ecology 80, 241-273.

2473 - Finsinger, W, Belis, C, Blockley, SPE, Eicher, U, Leuenberger, M, Lotter, AF and Ammann, B (2008) Temporal patterns in lacustrine stable isotopes as evidence for climate change during the late glacial in the Southern European Alps. Journal of Paleolimnology 40, 885-895.

2497 - Johansson, M (2005) Petrographische und Mikroanalytische Untersuchungen an Vulkanisch-Minerogenen Sedimentanteilen eines Bohrkerns aus einem Moor bei Daaden/Westerwald. Leibniz-Universität,

3030 - Riede, F, Bazely, O, Newton, AJ and Lane, CS (2011) A Laacher See-eruption supplement to Tephrabase: Investigating distal tephra fallout dynamics. Quaternary International 246, ,134-144.

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.

2589 - Walter-Simonnet, AV, Bossuet, G, Develle, AL, Begeot, C, Ruffaldi, P, Magny, M, Adatte, T, Rossy, M, Simonnet, JP, Boutet, J, Zeiller, R, de Beaulieu, JL, Vanniere, B, Thivet, M, Millet, L, Regent, B and Wackenheim, C (2008) Chronicle and distribution of lateglacial tephras in the Vosges and Jura mountains, and the Swiss Plateau. Quaternaire 19, 117-132.

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 03:03:51 local time, Edinburgh, Scotland, UK.