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40Ar/39Ar Age Determination 21G08173 (10.58052/OSU-KM1609-D7-16.AK1 - Ellice Basin)
File Name 10.58052/OSU-KM1609-D7-16.AK1.21G08173.pdf
Data Type spreadsheet
Computer Program ArArCALC 2.7.0
File Size 893.00 KB - 4 files [ pdf,xls,age,xml ]
Expert Level State-of-the-art Science
Contributor ArArCALC ERDA Uploader
Source Davidson et al. 2023
http://earthref.org/ERDA/10.58052/OSU-KM1609-D7-16.AK1/
Description
This upload contains the 40Ar/39Ar geochronology age determination of sample KM1609-D7-16 (OSU-KM1609-D7-16.AK1) from Ellice Basin in East Pacific Ocean (Ellice Basin, Pacific Ocean) and was calculated using the ArArCALC freeware. The preferred age of 77.12 ± 0.47 Ma is the age plateau and is interpreted as the alteration age of the sample. Alteration age 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 (1A2-21) (sanidine) with an age of 28.201 ± 0.082 Ma. This sample was collected by Paul Wessel (pwessel@hawaii.edu). Sample Description: 1 N HCl, 6 N HCl, 1 N HNO3, 3 N HNO3 each for one hour, plus 5% HF for 5 minutes. Sample Treatment: whole rock.
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