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Salt Springs, Sierra Nevada - October 2022


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#11 craig333

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Posted 14 October 2022 - 04:28 AM

I do believe that was when I made it to the dam. We really need to do another rally.


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#12 Foy

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Posted 15 October 2022 - 12:53 PM

"One large chunk of granite caught our attention"--indeed!  That's an amazing outcrop!  Looks like an area of wall rock xenoliths within the granitic intrusion. Perhaps proximal to an edge of the intrusion?  Clasts are subrounded to subangular and supported in the granitic matrix.  Younger veins and small dikes cut both the granitic matrix and the xenoliths. Awesome picture!

 

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#13 ski3pin

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Posted 15 October 2022 - 03:59 PM

I figured that chunk of granite would get a geezer geologist's blood flowing. After the beautiful uniform granite just upstream, it was a surprise to crawl over this piece of rock with a story to tell!

 

"One large chunk of granite caught our attention"--indeed!  That's an amazing outcrop!  Looks like an area of wall rock xenoliths within the granitic intrusion. Perhaps proximal to an edge of the intrusion?  Clasts are subrounded to subangular and supported in the granitic matrix.  Younger veins and small dikes cut both the granitic matrix and the xenoliths. Awesome picture!

 

Foy

 

 

 

Salt-Springs-Oct-2022-017-copy.webp


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#14 ski3pin

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Posted 15 October 2022 - 04:03 PM

Are you up to the task? I think I know the answer to that!  Very interesting area. I had no idea salt was collected that way. I've never made it further than the dam. 

 

I will update the blog as this unfolds. Two more salt springs have been located and documented. Two more to go. :)

 

 

 

Salt-Springs-2-Oct-2022-001-copy.webp

 

 

 

 

 

 

 

Salt-Springs-2-Oct-2022-006-copy.webp


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#15 goinoregon

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Posted 18 October 2022 - 01:59 AM

very informative trip report !!   i wonder how long it would take for some of those salt water buckets to actually dry up and turn into salt ?

 

and, whatever foy said, i just assume he knows what he is talking about.

go


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#16 rubberlegs

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Posted 18 October 2022 - 06:51 AM

I wonder if they only put a few inches of water in the "buckets". Filling all the way would take sooooo long to dry. And what if it rained? Did they put Goretex over the "buckets", so the vapors would escape, but rain wouldn't come in?


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#17 ski3pin

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Posted 18 October 2022 - 02:22 PM

I wonder if they only put a few inches of water in the "buckets". Filling all the way would take sooooo long to dry. And what if it rained? Did they put Goretex over the "buckets", so the vapors would escape, but rain wouldn't come in?

I've been contemplating this question also but if they were only partially filled, why make them so deep? It makes me wish we could go back in time and observe the process.

 

We are off to find the last of the five springs mentioned in the USGS paper. :)


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#18 ski3pin

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Posted 19 October 2022 - 09:35 PM

Julie and I have now visited all of the salt springs mentioned in the USGS paper I linked to in our blog. I've updated the end of the blog story with the story and photos of the four additional salt spring sites.

 

Salt Springs, Sierra Nevada - October 2022


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#19 AWG_Pics

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Posted 19 October 2022 - 11:27 PM

Persistence is often its own reward! Fascinating explorations!


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#20 goinoregon

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Posted 20 October 2022 - 06:50 PM

you two need to add 'detectives' to your WTW handle.


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