The term iridium anomaly commonly refers to an unusual abundance of the chemical element iridium in a layer of rock strata at the Cretaceous–Paleogene...

produced by the impact that formed the Chicxulub crater. Similarly, an iridium anomaly in core samples from the Pacific Ocean suggested the Eltanin impact...

their paper on the iridium anomaly in Science in June 1980. Almost simultaneously Jan Smit and Jan Hertogen published their iridium findings from Caravaca...

layer at the base of a dark clay layer. This reddish layer is the Iridium Anomaly, representative of the fallout of the major impact that resulted in...

gravimetry Free-air anomaly, gravity anomaly that has been computed for latitude and corrected for elevation of the station Iridium anomaly, an unusual abundance...

and is no longer in use. The base of the Danian is defined at the iridium anomaly which characterized the Cretaceous–Paleogene boundary (K–T boundary)...

media related to iridium. Isotopes of iridium Iridium-192, an isotope Iridium flare, a notable source of satellite glint Iridium anomaly, an unusual abundance...

R.; Wallace, M.W. (1989). "Iridium anomaly from the Acraman impact ejecta horizon: impacts can produce sedimentary iridium peaks". Nature. 340 (6234):...

Paleocene is at Oued Djerfane, west of El Kef, Tunisia. It is marked by an iridium anomaly produced by an asteroid impact, and is associated with the Cretaceous–Paleogene...

upper boundary of the Cretaceous is sharply defined, being placed at an iridium-rich layer found worldwide that is believed to be associated with the Chicxulub...

extinction event is cosmic radiation from a nearby supernova explosion. An iridium anomaly at the boundary is consistent with this hypothesis. However, analysis...

California at Berkeley. He is best known as the chemist who discovered the iridium anomaly in the Cretaceous–Paleogene boundary layer that led the team of Luis...

"SpaceX Returns To Flight with Iridium NEXT launch – and landing". NASASpaceFlight.com. Retrieved 4 February 2017. "Iridium Adds Eighth Launch with SpaceX...

France. The top of the Maastrichtian Stage is defined to be at the iridium anomaly at the Cretaceous–Paleogene boundary (K–Pg boundary), which is also...

Earth, iridium would accumulate on the ice sheets, and when the ice melted the resulting layer of sediment would be rich in iridium. An iridium anomaly has...

26 January 2023. Wang K, Attrep M, Orth CJ (December 2017). "Global iridium anomaly, mass extinction, and redox change at the Devonian-Carboniferous boundary"...

high. The possible impact site was first discovered in 1981 as an iridium anomaly in sediment cores collected by the research vessel Eltanin, after which...

crater, produced an iridium anomaly that occurs in a thin, global layer of clay marking the Cretaceous–Paleogene boundary. Iridium layers are associated...

layers dating from the TE (Kolesnikov et al. 1999, 2003) and that iridium anomalies were also observed (Hou et al. 1998, 2004). Measurements performed...

Canyon Park in Raton. The rocks have been studied for evidence of the iridium anomaly cited as evidence of a large meteorite impact at the end of the Cretaceous...

signals" (such as planar deformation features, shocked quartz, and iridium anomalies) traditionally considered definitive evidence of hypervelocity impact...

changes and, in some areas, the presence of the terminal Cretaceous iridium anomaly. Although some early workers included the Frenchman Formation in the...

microfloral evidence, as well as the presence of the terminal Cretaceous iridium anomaly. The upper member is therefore of early Danian age, while the lower...

microfloral evidence, as well as the presence of the terminal Cretaceous iridium anomaly. The Edmonton Group is present in the central plains of Alberta. It...

; Fowell; S. J.; et al. (2002). "Ascent of Dinosaurs Linked to an Iridium Anomaly at the Triassic-Jurassic Boundary". Science. 296 (5571): 1305–1307...

M.J., and Hartline, B.W., (2002). Ascent of dinosaurs linked to an iridium anomaly at the Triassic-Jurassic boundary. Science 296: 1305–1307. Stocker...

levels of the López de Bertodano Formation. A small (but significant) iridium anomaly occurs at the boundary on Seymour Island, as at lower latitudes, thought...

M. J.; Hartline, B. W. (2002). "Ascent of Dinosaurs Linked to an Iridium Anomaly at the Triassic-Jurassic Boundary". Science. 296 (5571): 1305–1307...

V.; Sues, H. D.; et al. (2002). "Ascent of dinosaurs linked to an iridium anomaly at the Triassic-Jurassic boundary". Science. 296 (5571): 1305–1307...

former being ruled out because of an absence of iridium anomalies coeval with mercury and coronene anomalies. A large amount of carbon dioxide and sulphur...