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Bob Chesson's avatar

Interesting to see your post on the Meagher formation. I, as you know, just had a brief FB conversation with Rob Thomas on his FB page regarding LaHood formation rocks with my focus on the northern Tobacco Root mountains. Although I was mostly commenting on the LaHood rocks I did slip in that I had been working on Meagher formation mineralized rocks at the time. Because we were focusing on possible mineralized zones I was unaware of any oolitic zones in the Meagher and that is pretty cool and I'm sorry I missed them.

Kind of off topic but I got into a disputed conversation (online of course) with someone that wanted to dispute that ooids were formed by direct precipitation of calcite from seawater. He continued to pronounce that that was impossible because waters were "acidic" (or some other crazy reason which I have purged from memory to protect my sanity). He obviously ignored that we were discussing seawater and refused to believe that you could see this process happening in the Caribbean ocean and the white "sands" on Caribbean beaches were mostly ooids. Well I learned my lesson (mostly) and limit my discussions with sane people.

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Mike Reinke's avatar

Learned something new. The "swash zone" of a shoreline. A few years ago in summer on Lake Michigan, I snorkeled along the edge of the lake in about 1 foot of water, looking for 'cool rocks.'. Hoping to find something that might have micros inside. I noticed that where the waves crashed, the rocks were clean and fresh looking, but in a mere 2' of water, they were mossy and obscured by fibrous growths growing on them, aw-- the waves scour only a very narrow band of shoreline then.

I don't remember if I found much that day, but I has beach goers wondering what in hades I was doing, lol

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