Towards the isotopic measurement of solar wind carbon in the Genesis silicon target

We report a current stage of the carbon isotope measurements in the Genesis Si target

Xenon isotopes in nanodiamonds and other presolar grains

pdf freely available cb 18/07/0

Cryptoendolith communities in Antarctic dry valley region sandstones: Potential analogues of Martian life-forms

We are studying cryptoendolith-bearing Antarctic sandstones, to determine if the microbes alter the elemental composition of the rocks. If there is an effect, then it might be a tracer for the presence of micro-organisms in martian surface materials

The Fountain Hills meteorite: A new CBa chondrite from Arizona

We describe a new member of the CR chondrite clan and compare it to other members of this group

An integrated mineralogical, petrographic, light stable isotope and noble gas investigation of Sahara 99201 ureilite

New ureilite Sahara 99201 has been investigated to determine mineralogy, petrography, light stable isotopes and noble gases. The sample is a typical olivine pigeonite ureilite (Fo 78, Wo 10, En 72). C, N, O and Ar are consistent with other ureilites

Separation of Q-Noble gas carrier from bulk carbon in enstatite chondrites by stepped combustion

Detailed stepped combustion of HF-HCl residues from carbonaceous and enstatite chondrites suggest Q-noble gas carrier is different from bulk carbon in the meteorites

Continued investigation of the light element geochemistry of Tagish Lake

We have determined the abundance and isotopic composition of two separate carbonate generations within Tagish Lake. Nitrogen isotope analysis of the chondrite shows it to be organic-rich, with d15N values higher than in CI and CM chondrites