Talk:Farallon Plate

message: Several years ago I read an article in the San Francisco Chronicle about a new theory that Mount Tamalpais and other landforms that run from east to west may have been caused by a piece of the Farallon Plate that got stuck under the North American Plate, but is simultaneously welded to both the Pacific Plate and the North American Plate. As the Pacific Plate moves north, it drags the fragment with it, causing ripples on the surface of the North American Plate. Right now I'm looking for the article, but it's hard to find.Zyxwv99 (talk) 00:41, 10 November 2011 (UTC)
thread_title:  piece of Farralon Plate stuck under Marin and Sonoma counties 

message: The Farallon plate, because of its extent and longevity, is the basic foundation for much of the geologic development of western North America. It seems to me that it is thus so important that we really need to develop it.  Anyone else interested? ~ J. Johnson (JJ) (talk) 21:55, 6 May 2013 (UTC)
thread_title:  Needs development. 

message: This page is peculiarly based on the work of only one or two research teams. 
Sigloch & Mihalynuk (2013) is a very interesting and perhaps groundbreaking paper, but I have doubts because it contains major errors.  I'm not the expert that some that have studied the western US margin for decades are, but immediately recognized that the authors were making geological assertions that as far as we know, are wrong (and wrong in a way that suggests the authors had not actually made sufficient effort to look at some of the rocks in question, or review the relevant literature).  Because they use these as critical constraints for their plate tectonic model, said plate tectonic model is, logically, wrong.  Perhaps not unfounded, but certainly in need of modification and definitely not the last word.  I'm sure there are other issues, but these two are the ones that struck me:
1.  The authors suggest that Siletzia is an arc. It is most certainly not an arc. I'm not sure that anyone has ever suggested it is an arc, because it is so obviously not one.  
2.  The authors claim that there is not a Mesozoic arc developed on definitive North American craton.  There is actually a series of them from Triassic into Cretaceous time, parts of them developed specifically in and on top of the classic Grand Canyon sequence in southeastern California and neighboring portions of California and Arizona.  If these things that look very much like arcs are not arcs, then one needs to present some reasonable alternative.  There may actually be alternatives, but claiming the rocks to not exist is not one of them.
The new tomographic work and reconstructions derived from it is fascinating, but Wikipedia is not the place to present such models as established truth.
— Preceding unsigned comment added by 97.114.122.23 (talk) 
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:This article certainly is deficient in both quality and scope, and would likely benefit from any attention from someone familiar with (or willing to familiarize themselves with) the topic. Quite aside from what ever criticisms might be made of Sigloch & Mihalynuk (2013), I think the problem here is not so much of that source in itself, but that this article has so little of anything else. Fixing that requires the attention of someone willing to put some serious time and work into the topic. ~ J. Johnson (JJ) (talk) 21:31, 4 June 2015 (UTC)
thread_title:  Just because research is new doesn't mean it is the last word 

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thread_title:  External links modified