Saline Fluids in the Mantle Experimental Investigation of Their Role in Diamon...
Saline Fluids in the Mantle Experimental Investigation of Their Role in Diamond Formation and Kimberlite Magmatism
The majority of natural diamonds that have great economic importance for the gem industry are formed at great depth beneath old continents in the subcontinental lithospheric mantle (SCLM). The main carrier of these diamonds are ki...
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Información proyecto SalFluMa
Duración del proyecto: 34 meses
Fecha Inicio: 2017-03-01
Fecha Fin: 2020-01-31
Líder del proyecto
UNIVERSITAET MUENSTER
No se ha especificado una descripción o un objeto social para esta compañía.
TRL
4-5
Presupuesto del proyecto
159K€
Fecha límite de participación
Sin fecha límite de participación.
Descripción del proyecto
The majority of natural diamonds that have great economic importance for the gem industry are formed at great depth beneath old continents in the subcontinental lithospheric mantle (SCLM). The main carrier of these diamonds are kimberlites, deep volcanic rocks that transport fragments of the SCLM to the Earth’s surface. Both diamond formation and kimberlite genesis are still heavily debated processes in the Geosciences. Growing evidence from natural samples, such as fluid inclusions in diamonds, suggests that chloride-bearing fluids may play an important role in diamond formation and possibly in kimberlite generation. These saline fluids are envisaged to percolate into the SCLM from slabs of oceanic crust that are subducted underneath the continents.
The proposed research will investigate this hypothesis from an experimental perspective. High-pressure and temperature experiments, performed at the Institute for Mineralogy at the University of Münster (WWU), will examine the reactions between saline fluids and different rock types that constitute the SCLM. The reaction products will be evaluated by micro-analytical methods, and their compositions compared to natural samples and to kimberlitic melts. These petrological experiments are completely novel and indispensable in testing existing hypotheses on diamond formation and kimberlite generation.
The applicant is new to the field of experimental petrology, but brings along a wealth of complimentary experience. During his Diplom and PhD research (at the University of Mainz and the University of Alberta, respectively) he has worked with a wide range of analytical methods and gained profound knowledge of kimberlites, diamonds, and phase equilibria of the mantle. The WWU would benefit from the applicant’s previous research experience and his contacts in academia and industry. In return, the applicant would greatly benefit from a transition into experimental petrology at one of Europe’s top research institutes in this area.