Sluggen 8, 36-38cm part A (860 AD Layer part B Tephra) at Sluggan Bog

This search has found 17 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.


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  SiO2 TiO2 Al2O3 FeOMnOMgO CaO Na2O K2OTotal EP Ref
Glass74.250.2313.851.52 0.401.864.272.84 99.204854
Glass73.630.3313.871.55 0.411.894.182.97 99.034854
Glass72.980.2514.191.57 0.431.914.433.08 98.844854
Glass72.920.3314.421.60 0.401.854.303.10 98.914854
Glass72.820.2614.281.51 0.401.804.262.86 98.204854
Glass72.800.2414.751.61 0.441.934.143.18 99.104854
Glass72.480.3015.581.53 0.451.894.223.26 99.714854
Glass72.430.3314.641.56 0.402.003.072.94 97.374854
Glass72.120.2814.671.56 0.401.794.263.35 98.424854
Glass71.980.3114.221.49 0.381.814.003.27 97.464854
Glass71.630.2613.431.51 0.431.843.983.10 96.174854
Glass71.540.2614.981.50 0.451.994.113.31 98.134854
Glass71.200.2713.681.50 0.381.783.732.81 95.354854
Glass70.770.3215.421.51 0.431.863.763.23 97.294854
Glass69.710.3013.781.51 0.401.822.545.40 95.474854
Glass69.650.2514.931.51 0.431.803.913.16 95.654854
Glass69.230.3114.651.67 0.492.114.283.52 96.264854
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.



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.

854: Pilcher, J.R., Hall, V.A., and McCormac, F.G. (1995) Dates of Holocene Icelandic volcanic eruptions from tephra layers in Irish peats.. The Holocene  5(1), 103-110.

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 22/4/2024 at 06:28:41 local time, Edinburgh, Scotland, UK.