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Color, texture, shape


Bryon K Young

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Found around some plants in my yard.  Very bright color,  a few different shapes.  Would appeciate any help in ID.  and age would be great.  

D8D8DFC7-BD96-4759-93F2-07E1A723759F.jpeg

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It would really help if you would include the location in your post. The more information you can give for ID the better.

 

 

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It's quite likely that this is a dewatering feature. They form as fluids are being pressed out of pore spaces when sediments are accumulating. Often relatively impermeable layers being breached are the cause.   

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I agree that this looks like a sedimentary structure. 

Geological in origin, rather than biological.

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Auke Bay is in the Mendenhall Glacier area.  When digging we often run into what we call blue clay.  It has been explained as glacial silt from retreating Mendenhall. 

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So, it might be considered claystone?

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Glauconite is mentioned in the makeup of a similar formation here in Maine. Such clays make good impermeable layers.

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Could you please post a couple more pics of the top side from different angles?

 

Is that top layer kind of mother of pearl iridescent or more like oil slick rainbow colors type thing?

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