QUB-570 (Borge-51 Tephra) at Borge

This search has found 13 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.


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

  SiO2 TiO2 Al2O3 FeOMnOMgO CaO Na2O K2OTotal EP Ref
 74.700.3314.201.84 0.392.074.022.12 99.67171958
 74.300.3114.291.84 0.442.174.271.95 99.56171958
 73.740.3714.081.82 0.392.014.402.05 98.86171958
 71.030.3714.522.93 0.131.904.522.55 97.94171958
 64.091.0916.107.37 1.554.664.381.56 100.78171958
 63.641.0316.146.89 1.494.364.561.69 99.79171958
 63.461.0016.136.92 1.484.684.021.57 99.26171958
 63.281.0416.256.73 1.464.684.271.64 99.36171958
 63.130.9916.256.97 1.454.624.201.66 99.27171958
 62.520.9816.416.93 1.415.034.431.44 99.15171958
 61.680.9815.696.87 1.454.584.171.74 97.16171958
 61.580.9415.717.05 1.424.543.731.54 96.50171958
 60.600.8615.266.75 1.524.504.101.62 95.21171958
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.

1958: Pilcher, J., Bradley, R. S., Francus, P. and Anderson, L. (2005) A Holocene tephra record from the Lofoten Islands, Arctic Norway. Boreas  34, 136-156.

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 26/10/2021 at 21:24:08 local time, Edinburgh, Scotland, UK.