Excellent David; I am looking forward to snow returning here. We had a wicked November but it's been dry since.
I was trying my new 150mm Sironar yesterday. Tmax 100, Tmax dev., Tachihara 4x5, 75+150mm
Winter evening 1 by sdzsdz, on Flickr
Winter evening 2 by sdzsdz, on Flickr
Thanks jp.
sdzsdz - both are excellent, and I particularly like the second where I get a sense of the breadth and movement of the river.
Love the moon in the first one.
Morning sun over bog, Berkeley Twp., NJ. I made three exposures so I could try different development techniques, thinking that this would be a bear to print. But the first one developed in D-23 1:3 prints fine on grade 2.
Michael, I agree with some wave action but I think very minor. Probably more polish by the tidal movement of cobbles across the surface of the bedrock (not currently but in recent geologic time).
After spending a lot of time in the general area I've come to my own conclusions about the polished granite bedrock sheets in the general area.
First of all there are a number of striking examples where the black basalt has eroded at the same rate as the country rock granite, so I tend to believe that the basalt and granite are of similar hardness (in most cases). Also where the basalt has been removed faster than the surrounding granite (which is most frequent), the removed pieces are most often in angular chunk morphology, so I believe have been removed by abrasive action and frost heaving at the basalt/granite interface. This thought was shared by a number of visiting geologists that I've hung out with. Examples I've studied and photographed have included sites along the shore of Mt. Desert Island, Schoodic subsection (as shown), Grindstone Neck at Winter Harbour and at McClelland Park in Millbridge.
Additionally there are a number of granitic surfaces which clearly show the striations from glacial movement along the bedrock surfaces. The striations are intriguing given that during glaciation the current shore was 150 to 200 feet below sea level; most recently during the localized advancement of ice about 11,000 years ago.
If I can find it I'll post an image of the black basalt imbeded in granite which shows about identical erosion rates of the granite and basalt. In that image the basalt/granite interface was very well sealed so neither abrasion nor frost has lifted the basalt.
Some terrific photographic locations along the shores.
Nate Potter, Austin TX.
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