Hekla 4 Tephra at Fenton Cottage

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
Glass74.260.1713.521.90 0.021.444.813.47 99.594894
Glass74.220.1413.571.92 0.041.364.653.40 99.284894
Glass73.440.1412.841.57 97.224894
Glass73.370.1413.331.93 0.031.364.833.03 98.034894
Glass73.300.1413.312.00 0.021.394.413.25 97.814894
Glass73.090.1113.361.88 0.041.424.733.40 98.024894
Glass73.000.1613.261.97 0.031.374.673.62 98.094894
Glass72.990.1813.241.83 0.031.404.903.31 97.874894
Glass72.800.1513.311.86 97.484894
Glass72.770.1413.331.90 0.031.434.673.22 97.484894
Glass72.700.1613.141.96 0.011.404.733.37 97.454894
Glass72.660.1813.201.92 0.031.404.763.37 97.524894
Glass72.560.1713.181.85 0.021.354.572.94 96.644894
Glass72.490.1613.251.93 0.021.354.323.24 96.764894
Glass72.370.1612.941.95 0.031.394.473.28 96.594894
Glass72.270.1713.001.79 0.041.324.563.27 96.414894
Glass72.150.1813.101.92 0.051.334.283.25 96.254894
Glass71.520.1313.211.87 0.031.384.343.40 95.884894
Glass71.420.1613.091.80 0.021.364.493.33 95.654894
Glass71.170.1513.091.82 0.021.354.543.27 95.414894
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.

894: Pilcher, J.R. and Hall, V.A. (1996) Tephrochronological studies in northern England. The Holocene  6 (1), 100-105.

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 2/3/2024 at 23:17:41 local time, Edinburgh, Scotland, UK.