Fe-Ni Sulphides within a CM1 clast in Tagish Lake

The composition, abundance and mineral associations of Fe-Ni sulphides within a CM1 clast in Tagish Lake are described, and compared with Fe-Ni sulphides in the carbonate-rich and carbonate-poor lithology of Tagish Lake, as well as Fe-Ni sulphides from CI and CM chondrites

Different degrees of aqueous alteration in sulphides within the CI1 chondrites

Sulphides in four different CI1 chondrites were analysed, to evaluate their composition, texture and morphology. The results reinforce the view that CI1 chondrites could be divided into two subgroups, based on their level of aqueous alteration

Fe-Ni Sulphides as Indicators of Alteration in CM Chondrites

This study looks at the sulphide abundance and composition of Fe-Ni sulphide grains in 12 CM chondrites to determine an alteration sequence for these chondrites

A study of the morphology, composition and mineral associations of Fe-Ni sulphides in CM carbonaceous chondrites

A study of the compositional and textural variations between Fe-Ni sulphides in a suite of pristine to extensively aqueously altered CM chondrites, using SEM and EMP techniques

An ion probe study of the sulphur isotopic composition of Fe-Ni sulphides in CM carbonaceous chondrites

From the Introduction: The CM chondrites have endured variable degrees of aqueous alteration [1] which has changed their original mineralogy. A detailed study of the petrology and mineralogy of the sulphides in a suite of increasingly aqueously altered CMs, combined with sulphur isotope data measured in situ, can provide clues as to whether differences in the CM group are a result of different degrees of aqueous alteration, or whether they are the result of nebular heterogeneity

The petrology of fine-grained micrometeorites: Evidence for the diversity of primitive asteroids

We report the discovery by analytical TEM of serpentine and phases interpreted as dehydroxylates of serpentine in ultramicrotomed sections of a number of fine-grained Antarctic micrometeorites

The orbit of the Orgueil meteorite from historical records

Accepted versio

The hydrogen isotopic composition of fossil micrometeorites: Implications for the origin of water on Earth.

Accepted versio