Hekla 4 Tephra at Lairg AG3

This search has found 19 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.

Geochemistry

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

  SiO2 TiO2 Al2O3 FeOMnOMgO CaO Na2O K2OTotal EP Ref
Glass75.460.0812.962.030.080.041.364.592.89 99.492853
Glass75.100.1513.321.920.080.011.404.442.73 99.152853
Glass74.460.1413.381.830.070.021.403.762.84 97.902853
Glass74.410.0913.121.850.080.021.284.692.82 98.342853
Glass74.360.0613.242.060.060.021.304.662.77 98.532853
Glass74.310.0712.881.940.060.021.354.132.74 97.502853
Glass73.910.1012.782.040.110.041.314.522.72 97.522853
Glass73.740.0612.941.910.090.061.303.872.76 96.722853
Glass73.740.1112.851.870.080.051.254.542.85 97.342853
Glass73.570.1112.851.900.090.021.224.162.95 96.892853
Glass73.570.1212.951.840.080.031.274.562.65 97.082853
Glass73.540.1013.042.050.070.041.344.272.80 97.252853
Glass73.220.1212.791.940.070.021.334.342.69 96.522853
Glass72.700.1213.141.890.130.011.344.792.88 97.002853
Glass72.410.1213.021.850.080.051.284.312.76 95.882853
Glass71.970.0913.031.910.100.031.224.453.01 95.812853
Glass71.140.1513.463.600.140.032.144.252.39 97.302853
Glass70.720.2213.633.390.170.032.114.522.35 97.142853
Glass69.840.2614.214.690.230.102.844.432.25 98.842853
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.

 

References

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.

853: Dugmore, A.J., Larsen, G, and Newton, A.J. (1995) Seven tephra isochrones in Scotland. The Holocene  5/3, 257-266.

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 11:04:46 local time, Edinburgh, Scotland, UK.