Mineral scale platinum-group-element osmium isotope constraints on planet formation ‘late’ accretion

Projektinformationen

PGE-PLANETS

ID Finanzhilfevereinbarung: 653066

DOI 10.3030/653066

Abgeschlossenes Projekt

EK-Unterschriftsdatum 18 März 2015

Startdatum 20 Juli 2015

Enddatum 19 Juli 2017

Finanziert unter

• EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions

Gesamtkosten € 195 454,80

EU-Beitrag € 195 454,80

Koordiniert durch

UNIVERSITY OF DURHAM
United Kingdom

Ziel

Platinum group element (PGE) abundances & 187Os-isotope compositions determined for magmas of Earth, the Moon, Mars, & asteroidal bodies place important constraints on planetary evolution but these data, & current analytical approaches, have largely focused on whole-rock analyses. Interpretations of planetary PGE fractionation & parent-body mantle reservoir compositions often appeal to knowledge of PGE fractionation reported for Earth’s magma compositions that may differ from other planetary melts. For these reasons significant uncertainty exists on the internal influences of planetary bulk-rock PGE compositions & inferred mantle reservoir characteristics.
We propose to pioneer analytical techniques that will enable the first comprehensive study of mineral-scale PGE abundances & 186,187Os-isotope compositions in selected differentiated & primitive achondritic meteorites. This new quantitative mineral-scale information will enable rigorous & comprehensive assessment of the nature of planetary PGE fractionation(s), the degree of internal Os-isotopic equilibrium, & more precise knowledge of Osi values - thereby advancing understanding of molecular to planet-scale PGE characteristics with implications for theories concerning planetary & Solar System evolution.
For the purposes of the proposed research the Fellow has secured access to the University of Alberta Meteorite Collection; >1100 planetary samples curated by one of Canada’s foremost meteoriticists (Prof. C.D.K. Herd). The researcher benefits from 4.5 years of postdoctoral experience where she advanced her expertise in PGE analytical chemistry in specialist laboratories at leading North American institutions. Her experience of handling precious meteorite materials & familiarity with laser-ablation protocols & micro-column chemistry are key assets to the proposed study to be conducted at the University of Durham, a European & global leader in PGE analyses.

Wissenschaftliches Gebiet

• natural sciences › chemical sciences › analytical chemistry
• natural sciences › physical sciences › astronomy › planetary sciences › meteorites
• natural sciences › earth and related environmental sciences › geology › mineralogy

Programm/Programme

• H2020-EU.1.3. - EXCELLENT SCIENCE - Marie Skłodowska-Curie Actions Main Programme
• H2020-EU.1.3.2. - Nurturing excellence by means of cross-border and cross-sector mobility

Thema/Themen

• MSCA-IF-2014-EF - Marie Skłodowska-Curie Individual Fellowships (IF-EF)

Aufforderung zur Vorschlagseinreichung

H2020-MSCA-IF-2014

Finanzierungsplan

MSCA-IF-EF-ST - Standard EF

Koordinator

UNIVERSITY OF DURHAM

• Netto-EU-Beitrag: € 195 454,80
• Adresse: STOCKTON ROAD THE PALATINE CENTRE ; DH1 3LE Durham ; Vereinigtes Königreich
• Region: North East (England) › Tees Valley and Durham › Durham CC
• Aktivitätstyp: Higher or Secondary Education Establishments
• Gesamtkosten: € 195 454,80