The complex suite of organic materials in carbonaceous chondrite meteorites probably originally formed in the interstellar medium and/or the solar protoplanetary disk, but was subsequently modified in the meteorites' asteroidal parent bodies. The mechanisms of formation and modification are still very poorly understood. We carried out a systematic study of variations in the mineralogy, petrolog...

FROM THE SZENTBÉKKÁLLA SERIES OF MANTLE LHERZOLITE INCLUSIONS AND THE HOST BASALTS IN HUNGARY. Sz. Bérczi, S. Hegyi, Gy. Hudoba, S. Józsa., Gy. Szakmány Eötvös Loránd University, Institute of Physics, H-1117 Budapest, Pázmány P. s. 1/a., Hungary ([email protected]), Pécs University, Dept. Informatics and G. Technology, H-7624 Pécs, Ifjúság u. 6. Hungary, Budapest Polytechnik, Kandó Kál...

The IGCP 510 project Global Correlation of A-type Granites and Related Rocks, their Mineralization, and Significance in Lithospheric Evolution (or, in short, A-type Granites and Related Rocks through Time) of the International Geoscience Programmewas developed in the period of 2005 to 2010 with the sponsorship of the International Union of Geological Sciences (IUGS) and United Nations Education...

Abstrac~ Gravitational settling and centrifuge techniques have been criticized in the preparation of X-ray specimen mounts for quantitative clay petrology because of the marked mineral segregations that can occur. Although the same factors can operate to produce error in the separation of the traditional lessthan-2-#m fraction, this potentially more important source of bias is seldom taken into...

Introduction: Since the return to Earth of the Wild 2 comet samples by the Stardust mission, most of the studies have been performed on terminal particles located at the end of the deceleration tracks. However, the major fraction of the cometary material is unevenly distributed along the track walls [1,2]. Particles within samples extracted from the walls show strong collectinduced thermal alte...

1 Department of Subsurface Geobiological Analysis and Research (D-SUGAR), Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan, 2 Research and Development Center for Submarine Resources, Japan Agency for Marine-Earth Science and Technology, Yokosuka, Japan, 3 Project Team for Development of New-generation Research Protocol for Submarine Resources, Japan Agency for Marine-Earth ...

The Skellefte mining District is located in northern Sweden and comprises Palaeoproterozoic, metamorphosed, supracrustal rocks and associated intrusive rocks, which are all host to several ore deposits. Modelling was performed in the GoCAD software platform, using structural geology and petrology as well as magnetic, gravity, seismic, electric and electromagnetic geophysical data, in order to p...

a Department of Geology, Sölvegatan 12, Lund University, SE-22362 Lund, Sweden b Department of Marine Chemistry and Geochemistry, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA c Department of Geoscience, University of Wisconsin, 1215 W. Dayton St., Madison, WI 53706, USA d Robert A. Pritzker Center for Meteoritics and Polar Studies, Department of Geology, The Field Museum of N...