ASSIMILANT. V. S. Reynolds, H. Y. McSween, Jr., W. F. McDonough, and T. McCoy, Department of Mineral Sciences, National Museum of Natural History, Smithsonian Institution, Washington, DC 20560-0119, USA, Department of Earth and Planetary Sciences, University of Tennessee, Knoxville, TN 37996-1410, USA, Geochemistry Laboratory, Department of Geology, University of Maryland, College Park, MD 2074...

Jesús Rey-Rocha1, M. José Martín-Sempere2, Jesús Martínez-Frías3 and Fernando López-Vera4 (1,2Centre for Scientific Information and Documentation (CINDOC), Spanish Council for Scientific Research (CSIC), Madrid, Spain; 3Department of Geology, National Museum of Natural Sciences, Spanish Council for Scientific Research (CSIC), Madrid, Spain; 4Department of Agricultural Chemistry, Geology and Geo...

YAXCOPOIL-1 BOREHOLE, CHICXULUB IMPACT STRUCTURE, YUCATÁN PENINSULA, MEXICO. M.G. Tuchscherer, ([email protected]), W.U. Reimold, R.L. Gibson, and C. Koeberl, Impact Cratering Research Group (I.C.R.G.), School of Geosciences, University of the Witwatersrand, Private Bag 3, P.O. Wits 2050, Johannesburg, South Africa, Institute of Geochemistry, University of Vienna, Althanstrasse 14, ...

HRSC IMAGES OF MARS. A. T. Basilevsky, G. Neukum, S. Werner, S. van Gasselt, K. Gwinner, and B. A. Ivanov, Vernadsky Institute of Geochemistry and Analytical Chemistry, RAS, Kosygin Str., 19, 119991, Moscow, Russia, [email protected]; Institut fuer Geologische Wissenschaften, Freie Universitat Berlin, D12249, Berlin, Germany; DLR-Institut fuer Planetenforschung, D-12489, Berlin, Germany; Institut...

Travertine deposits are a kind of continental carbonates that form in specific chemical, physical and biological conditions. Garab travertines in southeast of Mashhad are studied based on field, geochemistry (elemental and stable isotope analysis) and hydro-geochemistry analysis. Field and petrographic characterization led to recognize of crystalline crust, raft, foam, shrub, laminated, black m...