bedding sand

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• bedding plane —    1. A primary depositional lamination in sedimentary rocks that may be preserved, though possibly with different properties, in metamorphic rocks. These laminations may be clearly visible where lithologies change or where depositional cycles… …   Lexicon of Cave and Karst Terminology

• Cross-bedding — Crossbedding of sandstone near Mt. Carmel road, Zion Canyon, indicating wind action and sand dune formation prior to formation of rock (NPS photo by George A. Grant, 1929) …   Wikipedia

• Rifle bedding — (also known as glass bedding) is the process of filling gaps between the action and the stock of a rifle with an epoxy based material. The bedding creates a stable and precise fit for the contact surfaces. Bedding is a technique employed in… …   Wikipedia

• sedimentary rock — Rock formed at or near the Earth s surface by the accumulation and lithification of fragments of preexisting rocks or by precipitation from solution at normal surface temperatures. Sedimentary rocks can be formed only where sediments are… …   Universalium

• Sedimentary rock — Middle Triassic marginal marine sequence of siltstones (below) and limestones (above), Virgin Formation, southwestern Utah, USA Sedimentary rock are types of rock that are formed by the deposition of material at the Earth s surface and within… …   Wikipedia

• environment — environmental, adj. environmentally, adv. /en vuy reuhn meuhnt, vuy euhrn /, n. 1. the aggregate of surrounding things, conditions, or influences; surroundings; milieu. 2. Ecol. the air, water, minerals, organisms, and all other external factors… …   Universalium

• Ripple marks — Ancient wave ripple marks in sandstone, Moenkopi Formation, Capitol Reef National Park, Utah …   Wikipedia

• Fat-tailed Gerbil — Pachyuromys duprasi Temporal range: Recent Conservation status …   Wikipedia

• Meriones unguiculatus — Taxobox name = Meriones unguiculatus status = LR/lc | status system = IUCN2.3 regnum = Animalia phylum = Chordata classis = Mammalia ordo = Rodentia familia = Muridae subfamilia = Gerbillinae genus = Meriones subgenus = Pallasiomys species = M.… …   Wikipedia

• cave — cavelike, adj. /kayv/, n., v., caved, caving. n. 1. a hollow in the earth, esp. one opening more or less horizontally into a hill, mountain, etc. 2. a storage cellar, esp. for wine. 3. Eng. Hist. a secession, or a group of seceders, from a… …   Universalium

• Gerbil — Taxobox name = Gerbil fossil range = Late Miocene Recent image width = 250px regnum = Animalia phylum = Chordata classis = Mammalia ordo = Rodentia superfamilia = Muroidea familia = Muridae subfamilia = Gerbillinae subfamilia authority = Gray,… …   Wikipedia