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Post by stephan on Mar 15, 2015 0:50:18 GMT -5
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Post by snowmom on Mar 15, 2015 4:38:03 GMT -5
gasp! you find stuff like that just lying there? The brecciated red landscape boulder is to die for... how big is that? The roast beef jasper left me shaking my head and drooling... the rocks out west are just so varied and beautiful.
Nice variety of insect wildlife in the second set of pics... all that in one place. More great pictures,
thanks for sharing!
Deb in plain gray pajama limestone country Michigan
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Post by stephan on Mar 16, 2015 12:51:26 GMT -5
Is your limestone fossiliferous, at least?
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Post by stephan on Mar 16, 2015 14:08:29 GMT -5
Yes, our geology is quite complex. We have volcanic, metamorphic and sedimentary pretty well intermixed. Some of what you find was formed miles underground (such as jade, serpentine and glaucophane). Other things have been tortured (the best desription I have heard of Stone Canyon jasper -- one of California's most famous brecciated jaspers is, "first the jasper was formed, then the North American plate sat on it (Joe Shook, ca. 2012). There is a reason that a lot of what we see is called Franciscan melange. That said, we have our share of leaverites, UBRs and UGRs, as well. Here is a link that shows what a beautiful mess we are: www.quake.ca.gov/gmaps/GMC/stategeologicmap.html |
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Post by snowmom on Mar 16, 2015 14:24:06 GMT -5
Is your limestone fossiliferous, at least? Indeed it is! First rate true blue Devonian limestone almost all loaded with fossils. I really shouldn't whine; as well as fossils, Canada has been very generous, sending with the glaciers chunks of almost every kind of rock She owns. So "glacial erratic" hunting is varied here and that adds a lot of spice! |
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Post by snowmom on Mar 16, 2015 14:28:39 GMT -5
Yes, our geology is quite complex. We have volcanic, metamorphic and sedimentary pretty well intermixed. Some of what you find was formed miles underground (such as jade, serpentine and glaucophane). Other things have been tortured (the best desription I have heard of Stone Canyon jasper -- one of California's most famous brecciated jaspers is, "first the jasper was formed, then the North American plate sat on it (Joe Shook, ca. 2012). There is a reason that a lot of what we see is called Franciscan melange. That said, we have our share of leaverites, UBRs and UGRs, as well. Here is a link that shows what a beautiful mess we are: www.quake.ca.gov/gmaps/GMC/stategeologicmap.htmlextraordinarily complicated! No wonder there are so many different named varieties of rock there... each has its own little niche.. I enjoy living vicariously through the posts of west coast folks, I doubt i'll ever get a chance to go there again. We were In San Diego for our son's graduation from Marine Corps boot camp, I never even got to see the Pacific, except from the airplane. That is likely to be the only time I ever set foot in Ca. So double thanks for taking people like me places we will never get the chance to visit "in person".
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Post by stephan on Mar 17, 2015 13:10:54 GMT -5
Then I will have to keep posting until you change your mind. You have to experience our coast at least once in your lifetime (especially the northern part, which is far more dramatic. :-)
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