Lithic sandstones, or lithic arenites, or litharenites, are sandstones with a significant (>5%) component of lithic fragments, though quartz and feldspar are usually present as well, along with some clayey matrix. Lithic sandstones can have a speckled (salt and pepper) or gray color, and are usually associated with one specific type of lithic fragment (i.e., igneous, sedimentary, or metamorphic).[1]
Photomicrograph of a lithic arenite (sandstone) from the Wolfville Formation (Jurassic). Top image is in plane polarized light (PPL); bottom image is in cross polarized light (XPL). Blue epoxy fills pore spaces.Photomicrograph of a volcanicsand grain; upper picture is plane-polarized light, bottom picture is cross-polarized light, scale box at left-center is 0.25 millimeter. This type of grain is a main component of a lithic sandstone.
lithic, sandstone, lithic, arenites, litharenites, sandstones, with, significant, component, lithic, fragments, though, quartz, feldspar, usually, present, well, along, with, some, clayey, matrix, have, speckled, salt, pepper, gray, color, usually, associated,. Lithic sandstones or lithic arenites or litharenites are sandstones with a significant gt 5 component of lithic fragments though quartz and feldspar are usually present as well along with some clayey matrix Lithic sandstones can have a speckled salt and pepper or gray color and are usually associated with one specific type of lithic fragment i e igneous sedimentary or metamorphic 1 Photomicrograph of a lithic arenite sandstone from the Wolfville Formation Jurassic Top image is in plane polarized light PPL bottom image is in cross polarized light XPL Blue epoxy fills pore spaces Photomicrograph of a volcanic sand grain upper picture is plane polarized light bottom picture is cross polarized light scale box at left center is 0 25 millimeter This type of grain is a main component of a lithic sandstone Tectonically lithic sandstones often form in a wide variety sedimentary depositional environments including fluvial deltaic and alluvial sediments associated with active margins This tectonic setting provides the source of the lithic fragments either through arc volcanism thin skinned faulting continental collisions unroofing and subduction roll back See also editArkose Quartz areniteReferences edit Prothero D R and Schwab F 1996 Sedimentary Geology pg 100 ISBN 0 7167 2726 9 nbsp This article related to petrology is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Lithic sandstone amp oldid 1183633347, wikipedia, wiki, book, books, library,
