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40Ar/39Ar Age Determination 16D08652 (IESS10072 - Mayhew Guyot)
File Name IESS10072.16D08652.pdf
Data Type spreadsheet
Computer Program ArArCALC 2.7.0
File Size 1.36 MB - 4 files [ pdf,xls,age,xml ]
Expert Level State-of-the-art Science
Contributor Susan Schnur
Source http://earthref.org/ERDA/IESS10072/
Description
This upload contains the 40Ar/39Ar geochronology age determination of sample MV1203-D17-07 from Mayhew Guyot in Walvis Ridge and was calculated using the ArArCALC freeware. The preferred age of 43.54 ± 0.03 Ma is the age plateau and is interpreted as the eruption age of the sample. A little bumpy, but plateau is otherwise Good. 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 (7A35-15) (sanidine) with an age of 28.201 ± 0.082 Ma. This sample was collected by Anthony Koppers (akoppers@ceoas.oregonstate.edu). Sample Description: Standard. Sample Treatment: Fine-grained, sparsely vesicular basalt. Slightly altered GM, Moderately ol-cpx-phyric..
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