Dr. Utz Kramar
DFG-Projects
Related Publications
Kramar, Utz, Harting, Markus, Rickers, Karen, Stüben, Doris (2007). "μ-Synchrotron radiation excited X-ray fluorescence microprobe trace element studies on spherules of the Cretaceous/Tertiary boundary transitions of NE-Mexico and Haiti samples" Spectrochimica Acta Part B: Atomic Spectroscopy 62 p824-835
Stüben, D., Kramar, U., Harting, M., Stinnesbeck, W., Keller, G. (2005). "High-resolution geochemical record of Cretaceous-Tertiary boundary sections in Mexico: New constraints on the K/T and Chicxulub events" Geochimica et Cosmochimica Acta 69 p2559-2579
Adatte, Thierry, Keller, Gerta, Stüben, Doris, Harting, Markus, Kramar, Utz, Stinnesbeck, Wolfgang, Abramovich, Sigal, Benjamini, Chaim (2005). "Late Maastrichtian and K/T paleoenvironment of the eastern Tethys (Israel): mineralogy, trace and platinum group elements, biostratigraphy and faunal turnovers" Bulletin de la Société Géologique de France 176 p37-55
Keller, Gerta, Adatte, Thierry, Stinnesbeck, Wolfgang, Rebolledo-Vieyra, Mario, Urrutia Fucugauchi, Jaime, Kramar, Utz, Stüben, Doris (2004). "Chicxulub impact predates the K-T boundary mass extinction" Proceedings of the National Academy of Sciences of the United States of America 101 p3753-3758
Keller, Gerta, Adatte, Thierry, Stinnesbeck, Wolfgang, StüBen, Doris, Berner, Zsolt, Kramar, Utz, Harting, Markus (2004). "More evidence that the Chicxulub impact predates the K/T mass extinction" Meteoritics & Planetary Science 39 p1127-1144
Stinnesbeck, Wolfgang, Keller, Gerta, Adatte, Thierry, Harting, Markus, Stüben, Doris, Istrate, Georg, Kramar, Utz (2004). "Yaxcopoil-1 and the Chicxulub impact" International Journal of Earth Sciences 93 p1042-1065
Schulte, P, Stinnesbeck, W, Stüben, D, Kramar, U, Berner, Z, Keller, G, Adatte, T (2003). "Fe-rich and K-rich mafic spherules from slumped and channelized Chicxulub ejecta deposits in the northern La Sierrita area, NE Mexico" International Journal of Earth Sciences 92 p114-142
Stüben, D, Kramar, U, Berner, ZA, Meudt, M, Keller, G, Abramovich, S, Adatte, T, Hambach, U, Stinnesbeck, W (2003). "Late Maastrichtian paleoclimatic and paleoceanographic changes inferred from Sr/Ca ratio and stable isotopes" Palaeogeography, Palaeoclimatology, Palaeoecology 199 (1-2) p107-127
Stinnesbeck, Wolfgang, Keller, Gerta, Schulte, Peter, Stüben, Doris, Berner, Zsolt, Kramar, Utz, Lopez-Oliva, José Guadalupe (2002). "The Cretaceous–Tertiary (K/T) boundary transition at Coxquihui, state of Veracruz, Mexico: evidence for an early Danian impact event?" Journal of South American Earth Sciences 15 p497-509
Stüben, D., Kramar, U., Berner, Z., Stinnesbeck, W., Keller, G., Adatte, T. (2002). "Trace elements, stable isotopes, and clay mineralogy of the Elles II K–T boundary section in Tunisia: indications for sea level fluctuations and primary productivity" Palaeogeography, Palaeoclimatology, Palaeoecology 178 (3-4) p321-345
Stüben, Doris, Kramar, Utz, Berner, Zsolt, Eckhardt, Jörg-Detlef, Stinnesbeck, Wolfgang, Keller, Gerta, Adatte, Thierry, Heide, Klaus (2002). "Two anomalies of platinum group elements above the Cretaceous-Tertiary boundary at Beloc, Haiti: Geochemical context and consequences for the impact scenario" Geological Society of America Special Paper 356 p163-188
Kramar, U., Stüben, D., Berner, Z., Stinnesbeck, W., Philipp, H., Keller, G. (2001). "Are Ir anomalies sufficient and unique indicators for cosmic events?" Planetary and Space Science 49 (8) p831-837
Stinnesbeck, Wolfgang, Schulte, P, Lindenmaier, F, Adatte, Thierry, Affolter, M, Schilli, L, Keller, Gerta, Stüben, D, Berner, Zsott, Kramar, U (2001). "Late Maastrichtian age of spherule deposits in northeastern Mexico: implication for Chicxulub scenario" Canadian Journal of Earth Sciences 38 (2) p229-238