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40Ar/39Ar Age Determination 192-1185 KR 2 (N=2) (10.58052/IEPCD-192-1185A-10R-3W-40-55 - Ontong Java Plateau)
File Name 10.58052/IEPCD-192-1185A-10R-3W-40-55.192-1185 KR 2 (N=2).pdf
Data Type spreadsheet
Computer Program ArArCALC 2.7.0
File Size 1.42 MB - 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/IEPCD-192-1185A-10R-3W-40-55/
Description
This upload contains the 40Ar/39Ar geochronology age determination of sample 192-1185A-10R-3W 40/55 (192-1185A-10R-3W 40/55) from Ontong Java Plateau in Western Pacific Ocean (Ontong Java Plateau) and was calculated using the ArArCALC freeware. The preferred age of 110.86 ± 0.21 Ma is the combined age plateau and is interpreted as the eruption age of the sample. Combined eruption age plateau from the eruption age plateau from 1185A and the top sample from 1185B (both are from the Kroenke geochemical group). 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 (5A6-21) (sanidine) with an age of 28.201 ± 0.082 Ma. This sample was collected by Peter Davidson (davidspe@oregonstate.edu). Sample Description: Full standard leach + 5min 5% HF. Sample Treatment: One sample from hole 1185A and one sample from hole 1185B.
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