Quotes & Sayings About Sedimentary Rocks

Unkar Delta at Mile 73
The layers of brick red sandstone, siltstone, and mudstone of the Dox formation deposited a billion years ago, erode easily, giving the landscape an open, rolling character very different that the narrow, limestone walled canyon upstream, both in lithology and color, fully fitting Van Dyke's description of "raspberry-red color, tempered with a what-not of mauve, heliotrope, and violet." Sediments flowing in from the west formed deltas, floodplains, and tidal flats, which indurated into these fine-grained sedimentary rocks thinly laid deposits of a restful sea, lined with shadows as precise as the staves of a musical score, ribboned layers, an elegant alteration of quiet siltings and delicious lappings, crinkled water compressed, solidified, lithified. — Ann Zwinger

Of the three Highwood sisters, she was the only dark-haired one, the only bespectacled one, the only one who preferred sturdy lace-up boots to silk slippers, and the only one who cared one whit about the difference between sedimentary and metamorphic rocks.
The only one with no prospects, no reputation to protect. — Tessa Dare

Thus, human beings are now carrying out a large scale geophysical experiment of the kind that could not have happened in the past ... Within a few centuries we are returning to the atmosphere and oceans the concentrated organic carbon stored in sedimentary rocks over hundreds of millions of years. — Roger Revelle