| SPONSORED BY | |
| Lunar and Planetary Institute | |
| SCIENTIFIC ORGANIZERS | |
| Allan H. Treiman Lunar and Planetary Institute Phone: 281-486-2117 E-mail: treiman@lpi.usra.edu |
Christopher D. K. Herd Lunar and Planetary Institute Phone: 281-244-2021 E-mail: herd@lpi.usra.edu |
| CO-CONVENERS | |
| John Jones, NASA Johnson Space Center David Mittlefehldt, NASA Johnson Space Center | |
The scientific workshop "Unmixing the SNCs: Chemical, Isotopic, and Petrologic Components of the Martian Meteorites" will be held October 11–12, 2002, at the Lunar and Planetary Institute (LPI) in Houston, Texas. (Please note that the workshop will end on October 12 rather than October 13 as previously advertised.)The LPI is located in close proximity to the NASA Johnson Space Center, and is accessible from the three Houston airports: Bush Intercontinental (44 miles), Hobby (15 miles), and Ellington (7 miles). Transportation from the airport to the meeting site is the responsibility of each participant.
Martian meteorites, despite being all basalts or their derivatives, show an enormous range of chemical and isotopic compositions. In some respects this breadth is greater than that of all basaltic rocks on Earth. Much of the compositional variability can be modeled as mixtures of chemical and isotopic components, and some components have been assigned to specific geological/chemical reservoirs: mantle, crust, atmosphere, regolith, and hydrosphere. If mixing components in the SNCs can be characterized, we will gain insight into hidden aspects of martian geology and geochemistry — hitherto unsampled rock types and/or poorly characterized processes and geological environments.Attendees at the workshop will explore three fundamental issues (among others that will arise in discussion).
- How many components can be recognized? Can components defined in one type of system be correlated with components in another system?
- How and when did the components come to be mixed into the SNCs?
- What are the historical, tectonic, and geological implications of the components? Do scenarios in martian history (e.g., magma ocean, early "warm and wet" climate) permit or even require formation of chemical/isotopic reservoirs that are seen as mixing components?
The intent of the workshop is to bring new and existing results on chemical and isotopic components of the martian basalts to a single forum through oral and poster presentations and also wide-ranging discussions. As an outgrowth and summary of the results of the workshop, arrangements have been made to publish a set of papers in Meteoritics and Planetary Science, should there be interest.Over 30 presentations are scheduled, with several invited overview talks, contributed talks with abstracts, and contributed posters with abstracts. The preliminary program and abstracts are now available in PDF format, viewable with version 4.0 (or higher) of the Adobe Acrobat Reader, which is available from the Adobe Web site.
Audio-visual equipment available for oral presentations includes dual-screen projectors for slides and overheads and an LCD projector.A dedicated poster session will be held Friday evening from 5:00 to 7:00 p.m. Poster display space available to authors is 44" × 44". Posters may be up beginning at 8:00 a.m. Friday morning.
A special section in the journal Meteoritics and Planetary Science will be devoted to papers relating to the workshop, interest permitting. The deadline for submissions to this special issue is January 30, 2003. All papers will be subject to the usual peer-review process. Format and submission rules are posted on the Web at http://www.uark.edu/~meteor/02info.pdf.
A late registration fee of $65.00 and $40.00 for students will be assessed each participant (not already registered) to cover catering and workshop costs.Please return the downloadable preregistration form or you may use the electronic preregistration form if paying by credit card. On-site registration will begin at 8:00 a.m. Friday morning.
Participants are responsible for making their own hotel reservations. For your convenience, we have provided a list of local hotels and a local area map showing their locations.
For more information regarding the format and scientific objectives of this workshop, contact one of the organizers listed at the top of this announcement. For information regarding meeting logistics, contact the LPI meeting coordinator, Paula Walley (phone: 281-486-2144; e-mail: walley@lpi.usra.edu).
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