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40Ar/39Ar Age Determination 16D16095 (IESS10090 - Coleridge Guyot)
File Name IESS10090.16D16095.pdf
Data Type spreadsheet
Computer Program ArArCALC 2.7.0
File Size 1013.00 KB - 4 files [ pdf,xls,age,xml ]
Expert Level State-of-the-art Science
Contributor Susan Schnur
This upload contains the 40Ar/39Ar geochronology age determination of sample MV1203-D24-02 from Coleridge Guyot in Walvis Ridge and was calculated using the ArArCALC freeware. The preferred age of 36.51 ± 0.01 Ma is the age plateau and is interpreted as the eruption age of the sample. High-T blip (excluded) but otherwise plateau is Good. The age determination was carried out on a sample of trachyte (k-feldspar) 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 (7B8-15) (sanidine) with an age of 28.201 ± 0.082 Ma. This sample was collected by Anthony Koppers ( Sample Description: Standard. Sample Treatment: Aphanitic, moderately vesicular basalt. Highly altered GM, moderately plag-phyric..
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