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| Detailed File Information |
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Description
This upload contains the 40Ar/39Ar geochronology age determination of sample RR1310-D24-11 from Rurutu Hotspot in Tuvalu (Western Samoan Seamounts) and was calculated using the ArArCALC freeware. The preferred age of 48.17 ± 0.08 Ma is the age plateau and is interpreted as the eruption age of the sample. Like the other lava flow form this seamount this sample has a 'low temperature' excess Ar signature with an intercept of 415.2 +/- 12.4 (n=24). The resulting plateau is corrected with this new intercept value. The age determination was carried out on a sample of basalt (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 (2A52-14) (sanidine) with an age of 28.201 ± 0.082 Ma. This sample was collected by Kevin Konrad (KKonrad.Geology@gmail.com). Sample Description: 1x leach. Sample Treatment: Use this link to download the ArArCALC 40Ar/39Ar age calculation files (in the XLS, XML, PDF, AGE and META formats) and any other digital object related to RR1310 sample from the EarthRef.org Digital Archive.. Location Description: Kosciusko, Pacific Plate, Pacific Ocean. |
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Geological Age Range and Timescale
15.68 - 15.57 Ma |
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Location
10º 21.97' S - 10º 21.97' S 179º 40.22' E - 179º 40.22' E, RR1310-D24-11, Pacific Ocean, Pacific Plate |
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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 ... |
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Keywords
40Ar/39Ar, Geochronology, Radiometric Age Dating, K/Ar, Argon, Mass Spectrometry, ArArCALC, Data Reduction, IEKK1-RR1310-D24-11GM (IGSN), 14D28186 (Experiment), FRENCH POLYNESIA, RURUTU (13-INT-08) (Project), Dredging>Chain Bag (Collection Method), Ship (Platform Type), Individual Sample (Collection Object), Igneous>Volcanic (Rock Classification), Groundmass (Mineral Type), 11.2 mg (Sample Weight), Seamount (Feature Type) |
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