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40Ar/39Ar Age Determination 16D16227 (IESS10093 - Risso Seamount)
File Name IESS10093.16D16227.pdf
Data Type spreadsheet
Computer Program ArArCALC 2.7.0
File Size 1.33 MB - 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-D39-01A (DARK) from Risso Seamount in Walvis Ridge and was calculated using the ArArCALC freeware. No meaningful age was determined with this experiment. The age determination was carried out on a sample of tephrite (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 (7B20-15) (sanidine) with an age of 28.201 ± 0.082 Ma. This sample was collected by Anthony Koppers ( Sample Description: Standard. Sample Treatment: Fine-grained highly vesicular basalt. Moderately altered GM, sparsely ol-phyric..
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