Tjrnuvk A Tephra at Eii

This search has found 21 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
Glass75.940.1113.351.900.080.051.373.482.81 99.0921454
Glass75.900.1012.541.530.130.071.364.312.89 98.8321454
Glass74.220.1113.161.900.050.041.433.992.83 97.7321454
Glass73.540.1112.661.850.070.051.373.722.98 96.3521454
Glass73.490.1112.541.710.260.121.343.832.93 96.3321454
Glass73.380.0713.121.980.090.051.343.892.82 96.7421454
Glass73.050.0713.051.910.100.061.363.672.68 95.9521454
Glass72.990.1112.681.780.100.041.303.602.80 95.4021454
Glass72.740.2214. 99.2621454
Glass72.190.1712.902. 95.3921454
Glass71.980.2812.952.520.120.431.833.642.61 96.3621454
Glass71.750.2313.803. 97.6921454
Glass71.670.2213.732.930.100.131.803.982.67 97.2321454
Glass71.360.1713.292.410.120.041.814.122.59 95.9121454
Glass67.730.4815.125.610.170.553.323.232.03 98.2421454
Glass67.640.4014.925.350.160.523.252.991.97 97.2021454
Glass66.710.3914.715.470.160.653.373.661.89 97.0121454
Glass66.420.4314.745.220.130.523.213.992.11 96.7721454
Glass66.390.4914.497.470.260.353.854.121.92 99.3421454
Glass65.640.5514.467.320.260.373.754.121.92 98.3921454
Glass65.050.3814.675.310.150.513.154.081.92 95.2221454
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.

1454: Wastegard, S., Bjorck, S., Grauert, M. and Hannon, G.E. (2001) The Mjauvotn tephra and other Holocene tephra horizons from the Faroe Islands: a link between the Icelandic source region, the Nordic Seas, and the European continent. The Holocene  11(1), 101-109..

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 16/4/2024 at 17:57:21 local time, Edinburgh, Scotland, UK.