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discussion
This article included a query about the prevalence of iridium at the K-T boundary. The global average of iridium levels in the boundary layer is 15 times the background level, peaking at 160 times background near the crater (Alvarez et al, 1980.)
This article included a query about the prevalence of iridium at the K-T boundary. The global average of iridium levels in the boundary layer is 15 times the background level, peaking at 160 times background near the crater (Alvarez et al, 1980.)
==Discussion==
Alright whatever your name is: if you want to discuss, do it on the talk page. Not by vandalizing the article. Here you go.--[[User:MorrisF|MorrisF]] 21:51, 15 August 2011 (EDT)