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Public Lecture: Recipes for Making the Earth

Date:
30 May 2019
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Event type:
Lecture
Organised by:
1. Geological Society Events, 2019 Year of Carbon
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EVENT CLOSED

The main ingredients usually invoked to make planets are primitive meteorites, the chondrites.  Although believed to be broadly representative of the solar disk from which planets grew, there are subtle differences in the compositions of different chondrite groups.  

An important question has therefore been, what quantities of the different chondrites are needed to make the Earth. It transpires that one answer is obtained by considering elemental compositions and another using their isotopic characteristics. 

Time argues that this dilemma is resolved if elemental abundances are modified by vapour loss as a natural consequence of the energetic process of collisional planetary accretion. So overall, a respectable Earth can be made from a starting composition of enstatite chondrite that has been wantonly over-cooked.  

Speaker

Tim Elliott, University of Bristol 

Tim Elliott is Professor in Isotope Geology at the School of Earth Sciences, University of Bristol.  In his 20 years at Bristol he has helped establish a laboratory that specialises in exploiting the opportunities offered by inductively coupled plasma mass-spectrometry.  

He works on the evolution of the Earth and other planets, with a particular interest in the role of melting in shaping the composition of different planetary reservoirs. Prior to Bristol he benefited from the perspectives gained in an odyssey of positions at the Vrije Universiteit, Amsterdam and Lamont Doherty Earth Observatory following an education in some of the flatter parts of England, with his PhD at the Open University (Milton Keynes) and undergraduate degree at Cambridge.

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Matinee Lecture - Book your Ticket(s)

14.30     Tea and coffee served in the lower library

15.00     Lecture 

15.45     Questions and answers

16.00     Lecture ends and guests depart


Evening Lecture - Book your Ticket(s)

17.30 Registration

18.00 Lecture begins

18.45 Questions and answers

19.00 Lecture ends and there is a short soft drinks reception in the lower library

20.00 Close 

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