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U/pb dating of calcite slickenfibres

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This has opened up a whole new realm of tectonic investigation in the upper crust. This project will provide an excellent opportunity for outstanding training in analytical geochemistry and field geology alongside a supervisory team of world-leading geochronologists. This is particularly relevant, as major seismic hazards are often caused by upper crustal faulting processes in many orogenic systems. The results of this innovative study will provide detailed quantitative data on the rates and timing of brittle upper crustal deformation within the northern Alps for the first time. Dr Catherine Mottram, Professor Randall Parrish, Dr James Darling University of Portsmouth scroll down for more details Continental collision causes the build-up of large amounts of stress in the buckling crust. This project will develop and use the new calcite U-Pb dating technique to study how orogenic stress is spatially and temporally accommodated along continental-scale faults and fold belts in the upper crust of the Alps, the largest mountain belt in Europe. This has wider implications for how stress associated with mountain building is accommodated by folding and faulting. In this project you will get exciting travel and fieldwork opportunities as well as getting to use world-leading geochronology laboratory facilities at the University of Portsmouth, therefore a sense of adventure as well as an eye-for-detail will be crucial! You are required to create an account which gives you the flexibility to save the form, log out and return to it at any time convenient to you. When applying, please quote project code: The student will conduct geological fieldwork in the Swiss and French Alps where structurallycharacterised calcite slickenfibres, veins in fractures, and fill in deformed fossils and tension gashes will be collected. These rapid, low temperature upper crustal processes are notoriously difficult to date as the minerals usually used to record geological time such as zircon typically do not crystallise or record any deformation under these conditions. The carbonate rocks of the Helvetic Nappes, Molasse Basin, and Jura Mountains of the northern Alps provide an excellent natural laboratory to study the Miocene- recent deformation of the upper crust.

U/pb dating of calcite slickenfibres


The overall aim of the project is to develop and implement the new U-Pb calcite dating technique and use it to directly-date recent and on-going tectonic processes within the Helvetic-Jura section of the northern Alps. In this project you will get exciting travel and fieldwork opportunities as well as getting to use world-leading geochronology laboratory facilities at the University of Portsmouth, therefore a sense of adventure as well as an eye-for-detail will be crucial! This is particularly relevant, as major seismic hazards are often caused by upper crustal faulting processes in many orogenic systems. This has wider implications for how stress associated with mountain building is accommodated by folding and faulting. This project will provide an excellent opportunity for outstanding training in analytical geochemistry and field geology alongside a supervisory team of world-leading geochronologists. These rapid, low temperature upper crustal processes are notoriously difficult to date as the minerals usually used to record geological time such as zircon typically do not crystallise or record any deformation under these conditions. Roberts and Walker, , Geology; Nuriel et al. Dr Catherine Mottram, Professor Randall Parrish, Dr James Darling University of Portsmouth scroll down for more details Continental collision causes the build-up of large amounts of stress in the buckling crust. You are required to create an account which gives you the flexibility to save the form, log out and return to it at any time convenient to you. When applying, please quote project code: The student will conduct geological fieldwork in the Swiss and French Alps where structurallycharacterised calcite slickenfibres, veins in fractures, and fill in deformed fossils and tension gashes will be collected. This project will develop and use the new calcite U-Pb dating technique to study how orogenic stress is spatially and temporally accommodated along continental-scale faults and fold belts in the upper crust of the Alps, the largest mountain belt in Europe. This has opened up a whole new realm of tectonic investigation in the upper crust. The stress causes rocks to deform on a range of timescales; slowly, over millions of years in the ductile deep roots of mountain belts, and rapidly, over seconds during seismic events in the shallow brittle crust. The results of this innovative study will provide detailed quantitative data on the rates and timing of brittle upper crustal deformation within the northern Alps for the first time. Emerging techniques have recently been developed for directly-dating brittle structures using calcite, a mineral ubiquitous in many brittlely deformed rocks i. The carbonate rocks of the Helvetic Nappes, Molasse Basin, and Jura Mountains of the northern Alps provide an excellent natural laboratory to study the Miocene- recent deformation of the upper crust.

U/pb dating of calcite slickenfibres


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