- sand-clay matrix
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English-Russian dictionary of geology. 2011.
sand-clay matrix
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Matrix (geology) — Potassium feldspar phenocrysts within a fine grained matrix in a granite porphyry. The matrix or groundmass of rock is the finer grained mass of material in which larger grains, crystals or clasts are embedded. The matrix of an igneous rock… … 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
Bone Valley — The Bone Valley is a region of central Florida, encompassing portions of present day Hardee, Hillsborough, Manatee, and Polk counties, in which phosphate is mined for use in the production of agricultural fertilizer. Florida currently contains… … Wikipedia
wacke — /wak euh/, n. a poorly sorted sandstone containing fragments of rock and minerals in a clayey matrix. Cf. graywacke. [1795 1805; < G: a kind of stone] * * * ▪ sandstone also called dirty sandstone sedimentary rock composed of sand sized… … Universalium
graywacke — /gray wak , wak euh/, n. Geol. a dark gray coarse grained wacke. Also, greywacke. [1805 15; partly trans., partly adapted from G Grauwache; see WACKE] * * * or dirty sandstone Sedimentary rock composed of sand sized grains in a fine grained clay… … Universalium
Harvard Bridge — crossing the frozen Charles River from Cambridge to Boston, Massachusetts Carries Route 2A Crosses … Wikipedia
sandstone — /sand stohn /, n. a common sedimentary rock consisting of sand, usually quartz, cemented together by various substances, as silica, calcium carbonate, iron oxide, or clay. [1660 70; SAND + STONE] * * * Sedimentary rock formed from sand sized… … Universalium
Clastic rock — A thin section of a clast (sand grain), derived from a basalt score. Vesicles (air bubbles) can be seen throughout the clast. Plane light above, cross polarized light below. Scale box is 0.25 mm Clastic rocks are composed of fragments, or clasts … Wikipedia
metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… … Universalium
building construction — Techniques and industry involved in the assembly and erection of structures. Early humans built primarily for shelter, using simple methods. Building materials came from the land, and fabrication was dictated by the limits of the materials and… … Universalium
