Why should I trust an atheist science website, you worthless POS simpleton and liar? Where is the evidence for it being spread around the globe?
'Lack of an iridium anomaly
The secular model predicts a layer containing higher than crustal levels of iridium (a rare earth element) should spread out across the globe after a major impact hits the earth, but this is not necessarily the case. Much of the iridium produced in an impact stays in the debris at or near the impact site, and does not go up in a dust cloud to later settle globally (Taylor 2007).
Although higher levels of iridium have been found in rocks near the K-Pg boundary at many sites around the globe (Claeys, Kiessling, and Alvarez 2002), it is not universally distributed. In fact, Ir-anomalies are not always observed in adjacent locations within the same rock unit, as Clemens and Hartman (2014) found in the Hell Creek Formation in eastern Montana.
Sarjeant and Currie (2001) further reported that the original site in Gubbio, Italy, made famous by the Alvarez et al. paper (1980), was reanalyzed by Crocket et al. (1988) and Rocchia et al. (1990). These authors found that the reported iridium anomaly was not a single spike in value as claimed by Alvarez et al. (1980), but a series of iridium-rich layers spread across a 4 m thick interval. Sarjeant and Currie (2001) concluded that this is hardly the type of data that support a single impact.
And what was found at the Chicxulub site in all the cores and drilling results to date? Although a few traces of iridium were identified in melt rocks in wells C-1 and Y-5 (Fig. 1) (Schuraytz et al. 1996; Sharpton et al. 1992) no significant amounts of iridium have been found in any of the ejecta material or impactite layers across the Chicxulub site (Keller et al. 2004b). The amount found in the melt-rich rocks in C-1 and Y-6 ranged from none detected to 13.5 ppb, reportedly “well above typical crustal concentrations” (Sharpton et al. 1992, 820). Finally, there was no trace of an iridium spike in the top of the impactite in the Yaxcopoil-1 (Yax-1) core and no iridium reported to date within the M0077A core drilled in 2016.
In addition to the less than expected iridium, Paquay et al. (2008) found that the osmium residue in marine sediments at the K-Pg was insufficient for a large impactor the size of what has been claimed for Chicxulub.
Ironically, an iridium-rich layer is often used to identify the K-Pg boundary, where it is found (Claeys, Kiessling, and Alvarez 2002), and yet there is virtually no iridium in the impactite material at the very site claimed to be the “smoking gun.”'
The evidence for a large impact at Chicxulub may not be as strong as generally believed. A case can also be made that there was no impact.
answersingenesis.org
ETA: You just want me out of S&T because I am right most of the time and destroy arguments by other atheists. Envy is one of the deadly sins.