Abstract The paper presents data on granites and gneisses recovered by Kulindinskaya-1 hole drilled in the central part of Siberian Craton. biotite retain a porphyritic texture, correspond to I-type according their compositional features, are enriched LREE moderately depleted HREE, have negative Eu, Sr, Nb positive Zr anomalies. U−Pb zircon age is Neoarchean (2525 ± 10 Ma), with single cores gr...

The new metal-enriched anomalous chondrite Sierra Gorda 013 (SG 013) contains two different lithologies. Lithology 1 (L1) is represented by CBa-like material containing ~80 vol% of Fe,Ni-metal particles and globules up to 6 mm in size; chondrules clasts types POP, BO, SO (up 5 diameter); rare sulfides; shock melted silicate–metal areas. It does not contain any fine-grained matrix. Several chrom...

Introduction: Impact cratering is one of the dominant geologic processes affecting asteroids. It results in shock-induced melting and the formation of impactites, including impact melt breccias. Meteoritic samples of these breccias possess petrologic and geochemical signatures that can be used to deduce the collisional evolution of the respective parent body, such as the timing of the event, sh...

Introduction: Primary igneous plagioclase is found in approximately 10 % of type I chondrules in CO chondrites [1]. The presence of plagioclase has potential to help interpret conditions of chondrule formation, if the conditions of plagioclase nuclea-tion and growth are understood. Because primary plagioclase typically contains a significant albite component, the presence of this mineral is sig...