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Detailed File Information
40Ar/39Ar Age Determination 14D32740 (IESS10044 - Contest Seamount)
File Name IESS10044.14D32740.pdf
Data Type spreadsheet
Computer Program ArArCALC 2.7.0
File Size 1.39 MB - 4 files [ pdf,xls,age,xml ]
Expert Level State-of-the-art Science
Contributor Susan Schnur
Source http://earthref.org/ERDA/IESS10044/
Description
This upload contains the 40Ar/39Ar geochronology age determination of sample MV1203-D60-02 from Contest Seamount in Walvis Ridge and was calculated using the ArArCALC freeware. The preferred age of is the not specified and is interpreted as the of the sample. Terrible, barely any plateau. The age determination was carried out on a sample of trachyte (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 (4B26-14) (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. Moderately altered GM, moderately plag-phyric, tr cpx phenox..
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