Crustal Differentiation on Mars: A New View of the Red Planet Forty Years after Viking

November 11th 2016, RAS.

10-3.30 pm.

Professor John C. Bridges, Space Research Centre, University of Leicester j.bridges@le.ac.uk

Dr Susanne P. Schwenzer, School of Environment, Earth and Ecosystem Sciences, The Open University susanne.schwenzer@open.ac.uk

Forty years after the Viking mission landings on Mars in 1976, our view of Mars as an inactive, entirely basaltic planet has changed radically. Recent results from Mars Science Laboratory show localised silica enrichments and evolved igneous rocks within the clasts and fluvio-lacustrine sediments of Gale Crater. Many new martian meteorites are being identified and include evidence for magmatic  differentiation. The martian meteorites also record hydrothermal alteration of the martian crust.

An objective of this meeting is to produce a review paper about our current state of knowledge on Mars magmatism and differentiation of the crust.

Keynote Speakers: Dr Ernst Hauber, DLR: ‘The link between tectonic style and magmatism on the terrestrial planets: The case of Mars’

Dr Justin Filiberto, Southern Illinois University.  ‘Geochemistry of Martian Basalts with Constraints on Magma Genesis’

Dr Astrid Holzeid, University of Kiel. ‘Basalt-CO2 interaction on Mars and Earth’

Dr Jens Frydenvang, Los Alamos Laboratory. ‘ChemCam analyses in Gale Crater, Mars – mapping the geochemical stratigraphy of Aeolis Mons, one laser-shot at a time.’

 

 

The meeting will enable a focus on recent research including: 1. What igneous differentiation did Mars experience?

2. Did the ancient Mars environment experienced chemical weathering and associated major compositional and mineralogical changes. This debate will be used to inform the ExoMars Rover landing site selection and also a better understanding of the past atmosphere losses and habitable conditions.

2.  Ancient alluvial networks and the evidence for and implications of a northern ocean.

4. Communicate recent Mars science developments including the current Key Performance Review of ExoMars

This will include a talk from Sue Horne, UKSA about UK planetary science options and activities.

 

Abstracts

 

 

 

Session 1: 10.30 am to 1 pm

#Note there will be a 1 minute pause at 11 am for Remembrance Day.

10.30 am

Dr Ernst Hauber: The link between tectonic style and magmatism on the terrestrial planets: The case of Mars

#11.00

Dr Astrid Holzheid: Early processes in planetary bodies: constraints from Solar System basalts

11.20

Dr Justin Filiberto: Geochemistry of Martian Basalts with Constraints on Magma Genesis

11.45

Dr Jens Frydenvang: Chemcam analyses in Gale Crater, Mars - mapping the geochemical stratigraphy of Aeolis Mons, one laser-shot at a time.

12.15

Dr Christian Schroeder et al.: Ground truthing orbital clay mineral observations with the APXS on board Mars Exploration Rover Opportunity

12.35

Dr Leon Hicks  et al.:  H2O-CO2 interaction recorded in Martian meteorites.

13.00 Lunch

 

Session 2: 14.00-15.30

14.00

Joel Davis et al.: Extensive Noachian fluvial systems in Arabia Terra: Implications for early Martian climate

14.20

Dr Peter Fawdon et al.: The ExoMars landing Sites

14.40

Dr Colin Wilson et al.: ExoMars Schiaparelli & Trace Gas Orbiter – status update

15.00

UKSA Update (Sue Horne) and Discussion.

 

 

Poster Presentations

Bedford D. et al. Compositional End Members in Gale Crater, Mars.

Bröz P. and Hauber E. Small-scale volcanoes on Mars: distribution and types

Harris J.K. and Grindrod P.M. Determining the Source Locations of Martian Meteorites: Non-Linear Unmixing Models in the VNIR.

Jane MacArthur J. et al. Goethite in Northwest Africa 8114.

Mikhail S.: A new look at impact losses from the Mars atmosphere

Price, A.; Pearson, V. K; Schwenzer, S. P.; Olsson-Francis, K. Anaerobic utilisation of olivine by chemolithotrophic bacteria

Schwenzer S.P. et al. Martian subsurface water-rock interaction(s) – from meteorites to ExoMars

Woolman P. et al. The influence of salt composition on the entombed microbial community within the deep sub-surface Boulby Mine.

 

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