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Temperature–composition–time (T–X–t) data from authigenic K-feldspar: An integrated methodology for dating fluid flow events |
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| Authors: | Darren F Mark John Parnell Simon P Kelley Sarah C Sherlock |
| Institution: | aDepartment of Geology and Petroleum Geology, Meston Building, Meston Walk, University of Aberdeen, Aberdeen, AB24 3UE, UK;bCentre for Earth, Planetary, Space and Astronomical Research (CEPSAR), Department of Earth Sciences, Open University, Walton Hall, Milton Keynes, MK7 6AA, UK |
| Abstract: | Integration of fluid inclusion analysis with high spatial resolution Ar–Ar dating of K-feldspar cements has been used to resolve and reconstruct palaeo-fluid flow. Fluid inclusion analysis allows discrimination of distinct cement phases, thereby identifying discrete episodes of fluid flow. Ar–Ar dating of the same cements via high spatial resolution laserprobe establishes absolute age constraints on the framework previously constructed. Integration of these two datasets yields temperature–composition–time data. |
| Keywords: | Authigenic K-feldspar Fluid inclusion analysis Ar– Ar dating Fluid flow |
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