The K/T boundary of Gams (Eastern Alps, Austria) and the nature of terminal Cretaceous mass extinction

The K/T boundary of Gams (Eastern Alps, Austria) and the nature of terminal Cretaceous mass extinction......Page 1
Preface......Page 3
Introduction......Page 7
Outline of the Tectonic History......Page 9
The Gosau Group of Gams......Page 10
Locations of Sections Studied and Samples Preparation......Page 13
Foraminiferal Assemblages......Page 19
Terminal Maastrichtian......Page 21
Lower Paleogene......Page 22
Association of Planktonic Foraminifera......Page 23
Methods of Material Preparation and Studying......Page 39
Whole Rock Chemistry......Page 41
Trace and Rare Earth Elements......Page 43
Isotopic Composition of Helium, Carbon, and Oxygen......Page 54
Sampling Procedure, Sample Preparation Techniques, and Study Methods......Page 59
Native elements and metallic alloys......Page 61
Sulfides......Page 69
Oxides......Page 71
Phosphates......Page 81
Silicates......Page 82
Vertical mineralogical zonation as an indicator of environments of the transitional layer formation......Page 87
Conclusion......Page 88
Introduction......Page 89
Methods of Petromagnetic Studies......Page 90
Results of Petromagnetic Studies of the Rocks From Gams-1 Section......Page 95
Discussion of petromagnetic results......Page 111
Characterization of the Boundary Layer in the Gams Sections......Page 113
Comparative Characterization of Sections Including the K/T Boundary......Page 123
Conclusion......Page 133
Introduction......Page 135
Results of Investigations......Page 136
Conclusion......Page 143
Mantle Plumes and Lithosphere......Page 147
Sea-Level Changes, Topography and Sea-Level Changes......Page 152
Atmosphere and Atmosphere......Page 157
Introduction......Page 165
A Two-Stages Evolution of the Transitional Layer......Page 166
Mantle Plumes and Mass Extinctions......Page 167
Arsenic at the Cretaceous-Paleogene boundary.......Page 169
toxic elements by toxic elements at the K/T boundary: The killing mechanism sensu stricto.......Page 170
Conclusion......Page 173
References......Page 175
Electronic Supplement......Page 188
Author Index......Page 189
Subject Index......Page 195