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40Ar/39Ar Age Determination 13D07373 (IEKK1-44A-AR-2 - Floreana Island)
File Name IEKK1-44A-AR-2.13D07373.pdf
Data Type spreadsheet
Computer Program ArArCALC 2.7.0
File Size 1.40 MB - 4 files [ pdf,xls,age,xml ]
Expert Level State-of-the-art Science
Contributor Kevin Konrad
Source Balbas et al. 2016
http://earthref.org/ERDA/IEKK1-44A-AR-2/
Description
This upload contains the 40Ar/39Ar geochronology age determination of sample 44A-ARGON-2 from Floreana Island in Galapagos and was calculated using the ArArCALC freeware. The preferred age of 0.9287 ± 0.0046 Ma is the age plateau and is interpreted as the eruption age of the sample. A reliable plateau with low and high temp recoil. 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 (sanidine) with an age of 28.201 ± 0.082 Ma. This sample was collected by Andrea Balbas (Andrea_Balbas@yahoo.com). Sample Description: 1x leaching. Sample Treatment: A lava flow from Floreana Island, Galapagos. Location Description: Floreana Island, Galapagos. Site GA79 (Rochette et al. 1997; Kent et al. 2010) aka G44 (Cox and Dalrymple 1966). .
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