>>3088463Next stop was the Eagle Creek rock formation. This formation is in direct contrast to the Sandy River formation. This formation is very poorly sorted and immature sediment, many angular clasts, all suspended in a matrix, so a lot of breccia around. We found Wackes, and even one really interesting rock. This rock contained all mature sediments. You can imagine that finding mature sediments loose around immature sediments is much rarer than the versa, so it was already cool. The rock was primarily a quartz sandstone (one of the most mature clastic sedimentary rock types, commonly found compacted below old river deltas), but it had a small layer of shale atop it (or on the bottom I guess, hard to tell when it's loose like that and you don't have a lot of equipment with you lol). What really made this though, was that the shale layer had a leaf imprint in it.
I unfortunately never got a picture of it, but cool nonetheless.
