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40Ar/39Ar Age Determination 14D28280 (IEKK1-RR1310-D15-12GM - Rurutu Hotspot)
File Name IEKK1-RR1310-D15-12GM.14D28280.pdf
Data Type spreadsheet
Computer Program ArArCALC 2.7.0
File Size 1.38 MB - 4 files [ pdf,xls,age,xml ]
Expert Level State-of-the-art Science
Contributor Kevin Konrad
Source Konrad et al. 2018
http://earthref.org/ERDA/IEKK1-RR1310-D15-12GM/
Description
This upload contains the 40Ar/39Ar geochronology age determination of sample RR1310-D15-12 from Rurutu Hotspot in Tuvalu (Rurutu Hotspot, Tuvalu) and was calculated using the ArArCALC freeware. The preferred age of 49.65 ± 0.08 Ma is the age plateau and is interpreted as the eruption age of the sample. This sample suffered from low temperature excess Ar and produced a long isochron that contained a intercept value of 360.7 +/- 11.7. Using that intercept value the age of 49.58 was obtained and is deemd reliable. The age determination was carried out on a sample of basalt (groundmass) in an incremental heating experiment and using the bulk laser heating extraction method. The analyses were run on a ARGUS-VI mass spectrometer and the ages were calculated relative to flux monitor FCT-NM (2A54-14) (sanidine) with an age of 28.201 ± 0.082 Ma. This sample was collected by Kevin Konrad (Konradke@oregonstate.edu). Sample Description: 1x leach. Sample Treatment: Use this link to download the ArArCALC 40Ar/39Ar age calculation files (in the XLS, XML, PDF, AGE and META formats) and any other digital object related to RR1310 sample from the EarthRef.org Digital Archive.. Location Description: Vaitupu, Pacific Plate, Pacific Ocean.
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