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Beach boulders and breaking wave, Iceland (180912-60)
Tufa deposits in Mono Lake, California. (180314-103)
Boulder-sized clast in poorly sorted pebbly Miocene sandstone. New Zealand. (180106-36)
Channel deposit in Miocene sandstone, New Zealand. (180106-34)
Wind-deposited Jurassic Aztec Sandstone with parting lineations, Valley of Fire State Park, Nevada. (171217-35) red, aeolian
Ripplemarks in coastal-deposited sandstone of Cretaceous Dakota Formation, Colorado. Penny for scale. (171123-51).
Graded turbidite beds -overturned and cut by small fault with normal separation. Miocene Hoh Assemblage, Washington. (150913-33)
Foreset and Topset gravel beds of Gilbert Delta along west side of Puget Sound at Brinnon, Washington (150911-5)
close-up view of oolitic limestone of the Proterozoic Johnnie Formation, SE California. Penny for scale. (171109-18)
Cross-bedded, coarse-grained sandstone, right-side up. (IP17-2535)
Slackwater sediments, deposited in temporary lakes formed during the Ice Age (Missoula) floods, Washington. (IP16-3816)
salt casts preserved in Proterozoic Grinnell Formation of the Belt Supergroup, northern Montana. (170802-22)
Tufa is calcium carbonate, precipitated in over-saturated lake water (Image ID # 111119-35hdrf)
Glacial dropstone in Proterozoic diamictite of Kingston Peak Formation, SE California. (Sed-49)
Turbidites, made of interbedded sandstone and shale. (Sed-56).
Load casts in sandstone and shale (Sed-35).
Photomicrograph of quartz sandstone–approx .5 cm across. Sed-28.
Jurassic Navajo Sandstone, Zion National Park, Utah. Sed-09
Debris flow deposits, made of matrix-supported conglomerate. Mosaic Canyon, Death Valley National Park, California. (Sed-03)
Cretaceous Kootenai Fm., SW Montana. The conglomerate contains rounded clasts of chert and quartzite. (Sed-04)
Tilted beds of conglomerate, SE California. (IMG_1276)
left to right: shale, sandstone, conglomerate. (7344)
Graded bed, sandstone and shale. About 2 inches from bottom to top. (5D-2450)
Cross-bedded oolites in sandy limestone of Altyn LImestone of the Proterozoic Belt Supergroup, Montana. (30-10281)