Abstract Seven carbonaceous chondrites (Allan Hills A77307, Adelaide, Al Rais, Coolidge,
Grosnaja, Karoonda and Renazzo) with uncertain classifications were analyzed by …

Twenty carbonaceous chondrites were analyzed by instrumental and radiochemical neutron
activation analysis for Na, Mg, Al, K, Ca, Sc, V. Cr, Mn. Fe, Co, Ni, Zn, Ga, Ge, As, Se. Br. Ru …

Petrographie and bulk compositional data reveal the existence of a new group of
carbonaceous chondrites consisting of the observed fall, Karoonda, one large find from …

New analytical data combined with recent studies by other researchers allow the definition
of a Renazzo (CR) group of carbonaceous chondrites. We analyzed nine CR chondrites …

A quantitative understanding of the elemental and isotopic fractionations recorded in the
compositions of the chondritic meteorites would provide fundamental constraints for …

Detailed study of the petrographic and chemical properties of carbonaceous chondrites
shows that the four distinct petrographic subtypes may be related to one of two distinct …

We present new hydrogen isotope data for separated matrix, hydrated chondrules, and other
hydrated coarse silicate fragments from nine carbonaceous chondrites. These data were …

Bulk compositional and petrographic data clearly define the new R (Rumuruti) group of
chondrites consisting of Rumuruti (the only fall), ALH85151, Acfer 217, Carlisle Lakes, Dar al …

Carbon-rich aggregates from 3 type 3.4–3.6 ordinary chondrites and 2 chondritic clasts have
been characterized in detail using transmission electron microscope techniques. The …

Petrographic studies and microprobe analyses on Type 3 and 4 carbonaceous chondrites
reveal two distinct sub-types, provisionally called the Vigarano sub-type and the Ornans sub …