I am attempting to interpret an outcrop I went to. I suggested it was created by a braided fluvial. The one thing I cannot explain are prominent alternating siltstone beds with the sandstone beds. There are smaller lenses of silstone that I can suggest are abandoned channel fill, but I do have other siltstone beds about 0.2 - 0.5 m thick and seem pretty continuous (laterally continuous up to ~ 10-15 m as far as I can see).

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    $\begingroup$ It would be great if you could provide a picture to help us get a good insight $\endgroup$ – marsisalie Dec 5 '19 at 15:53
  • $\begingroup$ without images this description is pretty merger and makes helping you difficult. A picture is worth a thousand words and you don't have many words ot begin with. $\endgroup$ – John Dec 6 '19 at 16:00
  • $\begingroup$ @EtienneGodin Here is a photo! $\endgroup$ – PattyWatty27 Dec 27 '19 at 5:31
  • $\begingroup$ Any more hints, where is it, and when is it ? $\endgroup$ – user18411 Dec 27 '19 at 15:08

Braided channels are usually found in estuaries. Estuaries are usually on the coast. That being the case, it seems possible that now and again a high tide brought in some sand which covered the silt-filled channels, which then brought more silt, thus creating the layered structure you describe. If the site is now a long way from the coast, it doesn't follow that it always was.

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    $\begingroup$ Braided channels are not restricted to coastal environments. They are also common in mountain/glacial settings, although in those cases you should find coarse grains, i.e. gravels, not only silt/sand. $\endgroup$ – Jean-Marie Prival Nov 6 '19 at 13:11
  • $\begingroup$ Not a specialist, but i was under the impression that they are usually indicative of the proximal reaches, where sediment load and slope are high. But i may be wrong and can't contribute more without guessing ... $\endgroup$ – user18411 Dec 5 '19 at 13:05

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