back to bedrock

[nunyabiz111]

While revisiting one of few exposed bedrock riverbank sections along this river that also acts as a practical staircase up to the ledge:

summer last year:





earlier this week after a thaw and ice floe event:







couldn't help but notice within a few steps into the water:


















thanks for any and all thoughts/comments.



and also an o/t nature photo memento from earlier that day:

 

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[Fat]

You make some really nice pictures. That ice with the frozen drips is really good. I’m sure the groove stuff is all natural made by flowing water erosion.

 

[antmike915]

Also agree about natural on the groove stuff and also about the pictures, looks like a awesome place to be.

 

[nunyabiz111]

it's better than it was, I suppose. Much of the landscape surrounding the lower third portion of this stream would have been dammed and flooded over at various intervals for the better part of a century into the mid-1920s. It's not unusual to see conspicuous pieces of mill junk and debris sticking out where there was seemingly nothing just prior before:






on topic; a few steps over:

 

[ToddsPoint]

Water action formed the groove in your rock. The exact same thing is going on with the ice along the water beneath the snow. All natural. Gary

 

[southfork]

Cool photos .

 

[Fat]

Gary, I think that is a most perfect way to describe and with a ref. pic to show.

 

[nunyabiz111]

yes, but the grooved icicles are anchored (overhead) in place allowing this somewhat consistent layered/concentric effect to take shape. in contrast to, say, how sawing a straight line into a board laid across two sawhorses that isn't held or clamped in place would be highly impractical/inconsistent to the point of being unfeasible ....or attempting to knap one stone into a desired form with another using only one hand.

 

[Fat]

Gravity held it somewhat in place water flowed around.
How about some gold in that bedrock?

 

[nunyabiz111]

again, water would have likely never flowed over/around/against/across/into all facets of these 'hardstone' glacial till cobbles with enough of a consistent and directed energy as to produce such defined grooves if the only manner in which it were to remain static for long enough was by being partly embedded in silt (and somehow not getting intermittently buried over or loosened up, unless that is, as to flip itself over and be subject to mirror conditions throughout whatever span of time it would take for such to occur).

 

[nunyabiz111]

and as for gold, can't say i've spent much time directly prospecting though if there were gold between the cracks, could any of these two specimens and their types be of parent origin? (only bringing them up because they glittered)

 

[nunyabiz111]

as a cross reference of sorts, some conspicuous yet rather definitive examples of 'differential weathering' lining the banks of this stream:

 

[Tdog]

Don't know much about glittering gold but mica glitters too. There's literally tons of it here. We see it embedded in quartz and quartzite frequently.

 

[Older The Better]

Differential weathering, there may be softer layers in the stone subject to faster erosion

 

[Gaspipe]

Man those are neat but sure look like natural wear .

 

[MAMucker]

You take a great photo.
Interesting eroded rocks and features. There’s a lot of evidence of violence in that river. Tough place to hunt for sure. Have you found any NA artifacts?