Hekla 4 Tephra at Dead Island Bog

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.


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  SiO2 TiO2 Al2O3 FeOMnOMgO CaO Na2O K2OTotal EP Ref
Glass73.730.0912.492. 96.9572225
Glass73.400.0712.911.910.160.011.333.582.91 96.2672225
Glass73.260.0812.801.920.050.021.334.972.74 97.1672225
Glass73.240.0712.681.980. 96.9572225
Glass73.090.0713.411.910. 96.5072225
Glass73.020.0512.862. 96.4872225
Glass72.910.0913.091.980.130.041.323.792.80 96.1672225
Glass72.790.1112.661.790.070.021.324.973.00 96.7272225
Glass72.710.0612.962. 96.0272225
Glass72.590.1012.902. 96.0472225
Glass72.530.1212.481.940.030.031.324.682.79 95.9172225
Glass72.500.0912.702. 95.3172225
Glass72.480.0513.001.930.070.001.324.742.83 96.4272225
Glass72.470.0812.581.980. 95.5972225
Glass72.380.0912. 95.8272225
Glass72.350.0512.631.930.060.001.314.192.85 95.3572225
Glass72.290.1012.691.940. 95.5572225
Glass72.110.0812.391.980. 95.2472225
Glass71.680.1112.321.920. 95.1172225
Glass71.660.0812.471.980. 95.2472225
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.

2225: Swindles, G. (2006) Reconstructions of Holocene climate change from peatland in the north of Ireland. Unpublished PhD thesis, Queen's Unversity, Belfast,

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 3/3/2024 at 00:22:51 local time, Edinburgh, Scotland, UK.