does anybody know how this rock formed? by a river, the small rocks are cemented in. did it get formed with the rocks inside it, or did small rocks get cemented on top?
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Conglomerate e.g. ancient stream bed with silt matrix binding various sizes and kinds of weathered rocks that washed into the stream. Pressure and time harden silt into concrete-like matrix.
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Petrification. Sediments and organic matter made chemical slow reactions and solidifies over time
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That's all sedimetary rock that got carried by the river and eventually settled into the mud and stayed.
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Would love to hear from a geologist: is this considered conglomerate rock similar to the castlewood canyon band?
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Formed with the rocks (although it may have had more on top that is worn away)
Something like this:
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Could it be concrete eroding leaving the larger aggregate exposed once the smooth layer is washed away?
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