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K/Ar dating extended into the last millennium: Application to the youngest effusive episode of the Teide Volcano (Spain)
Author(s) -
Quidelleur X.,
Gillot P.Y.,
Soler V.,
Lefèvre J.C.
Publication year - 2001
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2000gl012821
Subject(s) - volcano , geology , k–ar dating , seismology , geochemistry
Less than one thousand years dating of the youngest volcanic episode of the Teide volcano (Canary Islands, Spain) has been performed using the K/Ar Cassignol technique. Analyses of about 20 g of pure alkali‐feldspar yielded a weighted mean age of 800±300 years. Stratigraphic, historic and archeomagnetic dating validate this age and rule out the hypothesis of the presence of significant excess argon contamination for this flow. Our result shows that the last effusive activity of the Teide volcano took place shortly before European settlement in Tenerife Island. This study confirms that the Cassignol technique can be applied with success for historic dating and demonstrates that it can now even be extended to the last millennium.