Comment on "Ascent of Dinosaurs Linked to an Iridium Anomaly at the Triassic-Jurassic Boundary"

Science ◽  
2003 ◽  
Vol 301 (5630) ◽  
pp. 169b-169 ◽  
Author(s):  
T. Thulborn
Keyword(s):  
Iridium Anomaly

scholarly journals Ascent of Dinosaurs Linked to an Iridium Anomaly at the Triassic-Jurassic Boundary

Science ◽  
2002 ◽  
Vol 296 (5571) ◽  
pp. 1305-1307 ◽  
Author(s):  
P. E. Olsen
Keyword(s):  
Iridium Anomaly

Mechanisms and models of iridium anomaly shape across the Cretaceous–Paleogene boundary

2011 ◽  
Vol 301 (1-2) ◽  
pp. 98-106 ◽  
Author(s):  
Pincelli M. Hull ◽  
Peter J.S. Franks ◽  
Richard D. Norris
Keyword(s):  
Iridium Anomaly

scholarly journals Iridium anomaly in the cretaceous-paleogene boundary at Højerup (Stevns Klint, Denmark) and Woodside Creek (New Zealand): The question of an enormous proportion of extraterrestrial component

2012 ◽  
Vol 77 (2) ◽  
pp. 247-255 ◽  
Author(s):  
Pavle Premovic ◽  
Budimir Ilic ◽  
Milos Djordjevic
Keyword(s):  
New Zealand ◽  
Boundary Layers ◽  
Sedimentary Rocks ◽  
Iridium Anomaly

The Cretaceous-Paleogene boundary clays at H?jerup and Woodside Creek show anomalous enrichments of iridium compared with the marine sedimentary rocks. For the average iridium content of 465 ppb in CI chondrite the estimate of the carbonaceous chondritic proportions in the decarbonated iridium-rich boundary layers, based on the integrated iridium fluencies, is about 26% at H?jerup and 65% at Woodside Creek. These proportions are most likely too high due to a significant Ir influx from the nearby marine or continental site to these sections.

Global iridium anomaly, mass extinction, and redox change at the Devonian-Carboniferous boundary

Geology ◽  
1993 ◽  
Vol 21 (12) ◽  
pp. 1071 ◽  
Author(s):  
K. Wang ◽  
M. Attrep, Jr. ◽  
C. J. Orth
Keyword(s):  
Mass Extinction ◽  
Redox Change ◽  
Iridium Anomaly

scholarly journals Iridium Anomaly Approximately Synchronous with Terminal Eocene Extinctions

Science ◽  
1982 ◽  
Vol 216 (4548) ◽  
pp. 886-888 ◽  
Author(s):  
W. ALVAREZ ◽  
F. ASARO ◽  
H. V. MICHEL ◽  
L. W. ALVAREZ
Keyword(s):  
Iridium Anomaly

Chemostratigraphy across the Cretaceous-Tertiary Boundary and a Critical Assessment of the Iridium Anomaly

1989 ◽  
Vol 97 (5) ◽  
pp. 585-605 ◽  
Author(s):  
M. Tredoux ◽  
M. J. De Wit ◽  
R. J. Hart ◽  
N. M. Lindsay ◽  
B. Verhagen ◽  
...  
Keyword(s):  
Critical Assessment ◽  
Iridium Anomaly
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