tag:blogger.com,1999:blog-5211670216140060946.post5929744414038843130..comments2024-03-17T18:37:36.377-07:00Comments on Geotripper: Strangers in a Strange Land: Not finding what you're not looking for...Garry Hayeshttp://www.blogger.com/profile/00531226195147986457noreply@blogger.comBlogger3125tag:blogger.com,1999:blog-5211670216140060946.post-7530458148273134742012-03-30T14:48:41.204-07:002012-03-30T14:48:41.204-07:00He knew that low angle faults were thrusts, becaus...<i>He knew that low angle faults were thrusts, because no one had seen anything different. And thrusts are caused by compression, which generally causes older rock to be pushed up and over younger rocks.</i><br /><br />By Levi's definition the rocks on top should have been older, but they are younger.Spingnoreply@blogger.comtag:blogger.com,1999:blog-5211670216140060946.post-9339505950989844442012-03-30T12:33:26.589-07:002012-03-30T12:33:26.589-07:00What's "wrong"? there is a low angl...What's "wrong"? there is a low angle fault ... but with younger rocks above rather than the usual older pushed over younger. So therefore not a thrust fault caused by compression?Hollishttps://www.blogger.com/profile/10788942181934895493noreply@blogger.comtag:blogger.com,1999:blog-5211670216140060946.post-49368362229892435342012-03-30T01:22:27.966-07:002012-03-30T01:22:27.966-07:00Thrust faults usually duplicate stratigraphy, wher...Thrust faults usually duplicate stratigraphy, whereas normal faults are more prone to excise stratigraphy. The ages of the rocks on the opposite sides of this fault suggest that the latter type of fault should be responsible for missing strata.<br /><br />[Not to discredit the story you're trying to tell, but I suspect Ellis Yochelson would have disputed your characterization of Walcott's contributions. I presume your understanding of Walcott is primarily shaped by Gould's _Wonderful Life_, no?]Ron Schotthttps://www.blogger.com/profile/10020094512548523216noreply@blogger.com