Report of the Workshop on Unmixing the SNCs: Chemical, Isotopic, and Petrologic Components of Martian Meteorites

نویسندگان

  • Allan H. Treiman
  • Christopher D. K. Herd
  • Allan Treiman
  • David Mittlefehldt
  • W. S. Kiefer
چکیده

S — Incompatible Trace Elements in SNCs and Li Isotopes Systematics in a Shergottite J. A. Barrat, P. Beck, M. Chaussidon, Ph. Gillet, A. Jambon, C. Göpel, and V. Sautter Exploring Trace Element and Isotopic Mixing Relationships in the Martian Meteorite Suite

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Chemical and Isotopic Constraints for the Martian Crust

Introduction: The Martian meteorite whole rock Rb-Sr isotopic compositions and the initial Pb data from plagioclase separates suggest strongly that the crust of their parent body originated from an ancient planetary global differentiation process about 4.5 Ga ago. The absence of plate tectonic activity on early Mars excludes a crustal recycling and preserves the isotopic systems derived from th...

متن کامل

Tungsten Isotopic Composition of the Snc Meteorite Los Angeles: Further Implications for Early Differentiation History of Mars

Introduction: The hafnium-tungsten (Hf-W) short lived radionuclide system (half life ~9 Myr) has been used to date early solar system differentiation events for the Earth, Moon, Mars (SNC parent body), and Vesta (eucrite parent body)[1-10]. During planetary differentiation, the lithophile Hf segregates into the silicate fraction (crust and/or mantle) while the siderophile W segregates into the ...

متن کامل

Evidence for a widespread basaltic breccia component in the martian low-albedo regions from the reflectance spectrum of Northwest Africa 7034

Northwest Africa (NWA) 7034 is the first breccia meteorite from Mars, and unlike the shergottite, nakhlite, and chassignite (SNC) martian meteorites, it matches the estimated chemical composition of martian crust. Here we show that the visible-infrared reflectance spectrum of NWA 7034 is unique compared to other SNCs and is more similar than them to remotely sensed data from Mars, suggesting th...

متن کامل

Carbon reservoirs on Mars: Constraints from Martian meteorites

Introduction: The search for life on Mars is a subject of enormous scientific and public interest; it is anticipated that remote missions to Mars over the coming few years will garner the requisite data that will allow the presence, or otherwise, of martian biological carbon to be determined. The only previous attempt to detect the presence of life in martian soil, made by instruments on the Vi...

متن کامل

Fe Isotopic Composition of Martian Meteorites

Introduction The scientific community has actively debated for quite some time the possibility that conditions were once favorable for life to originate and evolve on Mars. However, as we know it, for life to survive, the presence of liquid water is essential. The present day climate on Mars is inhospitable for sustaining any life form. However, recent data from twin rovers, Spirit and Opportun...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2002