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Detailed File Information
40Ar/39Ar Age Determination 13D03994 (IESS10004 - Omura Guyot)
File Name IESS10004.13D03994.pdf
Data Type spreadsheet
Computer Program ArArCALC 2.7.0
File Size 1.12 MB - 4 files [ pdf,xls,age,xml ]
Expert Level State-of-the-art Science
Contributor Susan Schnur
Source http://earthref.org/ERDA/IESS10004/
Description
This upload contains the 40Ar/39Ar geochronology age determination of sample MV1203-D37-03 from Omura Guyot in Walvis Ridge and was calculated using the ArArCALC freeware. The preferred age of 27.54 ± 0.04 Ma is the age plateau and is interpreted as the crystallization age of the sample. Good plateau The age determination was carried out on a sample of basalt (plagioclase) 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 Anthony Koppers (akoppers@ceoas.oregonstate.edu). Sample Description: Standard. Sample Treatment: Fine-grained, highly vesicular basalt. Slightly altered GM, highly ol-cpx-phyric, sparsely plag-phyric..
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