Slide 41 of 50

A note regarding the Chicxulub impact site, in Yucatan. Recent research has apparently resolved a long-standing controversy about the size of the Chicxulub crater. The original "transient crater diameter" has been revised down to about 100 Km. Over the years many other estimates have been given, ranging from around 200 Km to 300 Km. The smaller size of the crater makes its global climatic effects even more limited and inadequate for causing global extinctions. Thus in recent years, scientists have suggested many additional effects of the impact that may have adversely affected life. These additional effects, such as an atmospheric heat pulse, global forest fires, and other effects, are local or regional in scale, not global, so they could not cause global extinctions. Furthermore, in a global Flood context for various reasons, some of these effects would be lessened or rendered insignificant. [On the size of the Chicxulub impact, see Jo Morgan, Mike Warner, et. al., (Dec. 4, 1997), Size and morphology of the Chicxulub impact crater, Nature Vol. 390, pp 472-476. See also reference to Melosh at end of this file, in same issue of Nature]