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Currently Being Moderated

Dr Sarah Crowther, University of Manchester

 

Tuesday 18th November 1600h

 

Earth Sciences Seminar Room  (Basement, WEB 05)

 

 

The I-Xe chronometer provides a high resolution means of studying events that occurred during the formation of the Solar System and the subsequent reprocessing of material within the first ~150 Ma of Solar System history. Barwell seems to have sampled igneous clasts that formed early in the Solar System's history, and preserved the I-Xe system from this time. These clasts are igneous in nature, rather than chondritic. If they are relics from a previous generation of melted, differentiated planetesimals, it would support data that suggest there was an earlier generation of planetesimals that pre-date the formation of the chondrite parent bodies. Barwell also allows us the opportunity to investigate whether chondrules from this early period of Solar System history are also present.

 

NaturalHistoryMuseum_PictureLibrary_056606_IA.jpg


In this talk Sarah Crowther will discuss the background to this study, the I-Xe chronometer, the techniques and mass spectrometer used at The University of Manchester to determine I-Xe ages, and  recent analyses of Barwell.

 

More information on attending seminars at http://www.nhm.ac.uk/research-curation/news-events/seminars/

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