tag:blogger.com,1999:blog-5211670216140060946.post691923538516192250..comments2024-03-17T18:37:36.377-07:00Comments on Geotripper: Picture of the Day - A Great OutcropGarry Hayeshttp://www.blogger.com/profile/00531226195147986457noreply@blogger.comBlogger4125tag:blogger.com,1999:blog-5211670216140060946.post-77808573177426412942008-03-05T04:53:00.000-08:002008-03-05T04:53:00.000-08:00Authoritative answer?Authoritative answer?Ron Schotthttps://www.blogger.com/profile/10020094512548523216noreply@blogger.comtag:blogger.com,1999:blog-5211670216140060946.post-18972372464996987762008-03-03T05:42:00.000-08:002008-03-03T05:42:00.000-08:00I haven't cheated and read ahead, yet. I've been t...I haven't cheated and read ahead, yet. I've been to this road cut, so long ago that I don't remember anything but the rock types, not the fault.<BR/><BR/>In the photo, if those are the same "vitrophyres" - it looks like reverse offset. Given the location of Death Valley, however, it could be a tilted low-angle (or moderate angle?) normal fault - a process related to detachment faulting.<BR/><BR/>Now I'll read on and catch up!Silver Foxhttps://www.blogger.com/profile/03131032620978696727noreply@blogger.comtag:blogger.com,1999:blog-5211670216140060946.post-16023168204608024502008-03-02T22:12:00.000-08:002008-03-02T22:12:00.000-08:00I'd say it's clearly a dip-slip fault. My guess i...I'd say it's clearly a dip-slip fault. My guess is that many textbooks identify this as an example of a reverse fault, based on the apparent offset of the rusty orange-yellow beds. If they got it wrong, as you imply, I'd have to presume that this is actually a normal fault and those particular beds are not correlative. Normal faulting certainly makes more sense given the likely age of those volcanics and the current tectonic stresses in the region. But of course, I could be wrong...Ron Schotthttps://www.blogger.com/profile/10020094512548523216noreply@blogger.comtag:blogger.com,1999:blog-5211670216140060946.post-1608587127986003312008-03-02T02:44:00.000-08:002008-03-02T02:44:00.000-08:00If I'm reading the perspective right, the outcrop ...If I'm reading the perspective right, the outcrop surface is quite a shallow incline rather than a vertical road cut? That would make it a strike-slip fault.Chris Rhttps://www.blogger.com/profile/10923865059164569384noreply@blogger.com