Hekla 4 Tephra at MjŠuvÝtn

This search has found 10 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 analyse 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.


To download this data as a tab delimited file click here: save

  SiO2 TiO2 Al2O3 FeOMnOMgO CaO Na2O K2OTotal EP Ref
Glass72.940.1012.551.910. 95.7321454
Glass71.840.2013.632.890.100.041.834.302.68 97.5121454
Glass65.150.4714.027.520.320.333.624.261.80 97.4921454
Glass63.860.5414. 97.5721454
Glass62.310.7414.339.010.340.694.734.281.65 98.0821454
Glass62.190.5614.168.340.270.524.064.361.74 96.2021454
Glass62.180.7914.508.950.260.914.474.171.70 97.9321454
Glass61.200.8214.099.550.290.784.344.431.71 97.2121454
Glass61.000.6815.308.530.300.975.115.021.32 98.2321454
Glass60.470.7914.078.720.310.824.584.241.66 95.6621454
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 preceeding 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 22/10/2020 at 10:46:23 local time, Edinburgh, Scotland, UK.