EarthRef.org Digital Archive (ERDA) -- 40Ar/39Ar Age Determination D7 (N=2) (10.58052/IEPCD-KH-17-J01-D7-8

Description
This upload contains the 40Ar/39Ar geochronology age determination of sample D7-8 (KH-17-J01-D7-8) from Ontong Java Plateau in Pacific Ocean (Ontong Java Plateau) and was calculated using the ArArCALC freeware. The preferred age of 114.59 ± 0.15 Ma is the combined age plateau and is interpreted as the eruption age of the sample. Combined eruption age plateau from the two samples from D7 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 (1E10-21) (sanidine) with an age of 28.201 ± 0.082 Ma. This sample was collected by Takashi Sano (sano@kahaku.go.jp). Sample Description: Standard full leach + 5 min 5% HF. Sample Treatment: The two samples from D7 combined.

Instructions
This ERDA upload contains four separate 40Ar/39Ar age calculation files generated with ArArCALC. Both the XLS and PDF files are for easy viewing in Microsoft Excel or Adobe Acrobat Reader, whereas the AGE file is readable by the ArArCALC software only and the XML file is generated for the GEOCHRON online database project. For full age calculation functionality it is recommended that you open the AGE file in the ArArCALC software that is available as freeware online at http://earthref.org/ArArCALC ...

Keywords
40Ar/39Ar, Geochronology, Radiometric Age Dating, K/Ar, Argon, Mass Spectrometry, ArArCALC, Data Reduction, 10.58052/IEPCD-KH-17-J01-D7-8 (IGSN), D7 (N=2) (Experiment), ONTONG JAVA PLATEAU, SANO (20-13) (Project), Dredging (Collection Method), Ship (Platform Type), Dredge (Collection Object), Igneous>Volcanic>Mafic (Rock Classification), Phenocryst (Mineral Type), Plagioclase (Mineral Name), 150-500 µm (Grain Size), 6.312 mg (Sample Weight), Oceanic Plateau (Feature Type)