21. Sedimentary deposits in the form of silt, peat, sand and mud are mostly found in the river valleys.22. The effect was only compounded when the Twelve Mile Creek cut through the sedimentary deposits and glacial till. 23. It was further thought that a few small remnant volcanic peaks and domes still pierce the sedimentary deposits . 24. Volcanic eruptions have left volcanic tuff layers that enable accurate dating of the sedimentary deposits via Argon argon dating. 25. The relationship between the occurrence of organic compounds in sedimentary deposits and petroleum deposits has long been of interest. 26. The limestone rich sedimentary deposits of Oman's mountains offers some of the most exhilarating cave adventures in the world. 27. The ancient sedimentary deposits were uplifted with the rest of the Colorado Plateau, starting about 25 million years ago. 28. Local marine life included manatees, porpoises, Ice Age glacial activity made significant sedimentary deposits , but these preserved few fossils. 29. In this now-classic paper there is a presentation of evidence on how rain and rivers cause erosion and sedimentary deposits . 30. As the sedimentary deposits were compacted, water was squeezed out, hence turning clay minerals into mica, and then solid mudstone.
