Geologic Eye Chart
by Lon Overacker
At the risk of being repetitive, I'm posting yet another image of this wall. I just can't help it, every time I drive to Yosemite through the Merced River canyon on HW140, I have to stop here. The wall fascinates me. And after all the images I've posted of this wall over the past years, I thought I would provide some context. I'll post a wide pano in the comments.
Would love your thoughts and critique on this rock wall abstract.
Thanks!
NIkon D800E
Tamron 24-135mm @f/16
2-image focus blend
Comments
18 commentsBTW, any geologists in the group? I'm not trained, but I have figured out that I'm pretty sure this is metamorphic type rock AND that this rock pre-dates the granite found some 20 miles to the east in Yosemite Valley. I think maybe my PHD buddy Mr. Birdwell may have ID'd this for me previously, but I forget... ;-)
The Paleozoic rocks in the Calaveras Assemblage date from between 542.0 to 251.0 million years ago). This contrasts with the Yosemite granites, whose rocks were emplaced 84 to 94 million years ago, during the Mesozoic-cretaceous period. If you are interested in the Geologic Timescale, here is a nice chart from UC Berkeley.
Now, to the image...I certainly feel inspired by your images from this spot, and this is one of the best. The details and color are excellent. The diagonal cracks in contrast with the steeply tilted sedimentary beds give this an abstract feel. The processing looks spot-on to me. Well done, sir!
btw: I am not a PHD, I am just an old rock junkie, who Harley would say I am as old as the rocks themselves.
--P
Mattia
WOW, this image is stunning when seen in the large view. I love the range of color in this wall of beautiful rock. The colors rally are very intriguing, and then you have the patterns of colors along with the horizontal lines creating a very stimulating scene. This would be killer on a print from Nevada Art printer on there Lumachrome hd acrylic prints.
Amazing work Lon!!!!
@Bill, good call on the darker presentation. Looking over my posts and some other feedback I would agree that some are a tad on the dark side (ignoring the fact that the 720 orig postings always seem darker than the separately uploaded large version - but that's a different topic.)
@Navin, yes, it would be easy to explore more color and saturation. Even what's been presented, you can see from the pano pt-n-shoot image that the wall is eve less colorful than my image post. In fact I even pulled back on the reds and yellows and used TK's saturation painting to selective back off some of the saturation. But for sure, the colors present could certainly be explored and exploited on this wall.
Oh, also, I'm not 100% certain, but I believe this wall was altered by man probably in the construction of the road. Just a few steps behind where I stood to take the pano, there's an embankment that drops in to the Merced, dropping down maybe 20 ft or so; so this stretch is narrow and I'm sure they did some blasting. There are what I consider blast holes in the wall, but again I'm not 100% sure.
Great comments and observations folks!
Nice geology lesson from Mr. Birdwell, too.
I like this as presented and agree with others that the processing looks great. I can imagine a slightly more pano crop that would omit the top right deviation in pattern. It reminds me of a butterfy wing and eyespot and pulls me that dorection. It might make for an interesting alternative to omit that top section all across except keeping the left and right edges at the corners.
If im not mistaken this spot is right before that one lane bridge with a traffic that crosses the Merced. There have been trips where I've come back with better images here than in the park itself.