The term "graywacke" is derived from the German word "Grauwacke" which itself is a compound of "grau" (gray) and "Wacke" (a type of rock).
Graywacke is a type of sedimentary rock composed primarily of fine-grained fragments of other rocks, minerals, and organic matter. It is characterized by its dark gray color and often contains visible grains of quartz, feldspar, and mica.
Graywackes are formed when sediment is deposited rapidly in an unstable environment, such as during a storm or flood. The rapid deposition process prevents the sediment from being sorted and results in a mixture of different grain sizes and compositions.
Graywackes are common in ancient sedimentary sequences and are often found in association with other clastic sedimentary rocks, such as sandstone and shale. They can provide valuable information about the depositional environment and the geologic history of an area.
Etymology The word gray has several possible etymologies Proto Indo European griso
Etymology Wack adjective 1970s African American Vernacular English from wack noun
Etymology Old French alveis Latin alvus belly womb cavity Proto Indo European
Etymology The word away is derived from the Old English word awæg which is a compo
Etymology The word convection comes from the Latin word convectio which means a ca
Etymology Late Middle English in the sense institute or enforce from Old Frenc
Etymology From Latin convexus past participle of convehere meaning to carry toge
Etymology The word convoy originates from the Old French word convoi which in turn
Etymology The word deviate originates from the Latin verb devius meaning out of t
Etymology The word devious comes from the Latin word devius meaning out of the way
Etymology The word envoy stammt from the Old French word enveier meaning to send
Etymology From Latin evectiō evectiōnis a carrying out removal transportation
Etymology The word earwig is derived from the Old English word earwige which litera
Etymology The term graywacke is derived from the German word Grauwacke which itself i
Etymology Late Latin imperspicuus French impervious Meaning Impermeable not
Etymology The word invective comes from the Latin word invehi which means to carry
Etymology of Inveigh The word inveigh traces its roots back to the Old French word e
Etymology The word invoice comes from the Old French word inventer meaning to find
Etymology and Meaning The etymology of Norway is uncertain but there are two primary the
Etymology Latin obviare meaning to go to meet to oppose Meaning To make someth
Obvious Etymology Middle English obviouse from Latin obvius meaning in the way
Etymology Ochlocracy comes from two Greek words Ochlos mob or crowd Kratos po
Etymology Old French orge 2nd half of 14th century Middle English oge late 14th ce
Etymology The word pervious comes from the Late Latin pervius meaning passable or
Etymology The word previous comes from the Old French word previeus which is derived
Etymology Pro vection Meaning The act of conveying or transporting something
Etymology The term quadrivium is derived from the Latin phrase quadrivium scientiaru
Etymology German Thal valley Weg way Meaning The deepest part of a river
Etymology and Meaning The word trivia originates from the Latin word trivium which m
Etymology The term trivial is derived from the Latin word trivialis which means per
Etymology Latin trivium from tri three via way Literally three way crossroads
Etymology The word vector comes from the Latin word veho which means to carry In
Etymology Latin vehementia from vehemēns strong impetuous eager Indo European
Etymology French véhément Latin vehemens violent impetuous ardent Proto Indo E
Etymology Vehicle is derived from the Latin word vehiculum which means that which c
Etymology The word viaduct is derived from the Latin words via road way and ducer
Etymology The word viatic comes from the Latin word viaticus which means provision
Etymology Latin viaticum From via road aticum belonging to Meaning Pro
Etymology Late Middle English from Middle French vogue from Old French voguer to row
Etymology The word voyage comes from the Old French word voiage which itself derives
Etymology Wack adjective 1970s African American Vernacular English from wack noun
Etymology and Origin of Waggish The word waggish is derived from the Middle English
Etymology Middle English waggon Old English wægn Proto Germanic wagnaz Proto Indo
Etymology The word wain is derived from the Old English word wæn which meant a hors
Etymology Wall eyed is a compound word derived from two Old English terms Wealh
Etymology From Middle English weyen from Old English wēgan from Proto Germanic wēga
Etymology The word weight comes from the Old English word wiht which means a measur
Etymology The word wiggle is thought to have originated from the Old English word wagg
Etymology Meaning and Origin of Organization Etymology The word organization is d
Etymology The word typhoon originates from the Greek word typhōn which refers to t
Etymology Origin Latin restaurare to repair restore Root sta to stand be stab
Etymology The word apparition derives from the Latin appārēre meaning to appear
Etymology The word diaspora originates from the Greek word διασπορά diaspora
Etymology The word faculty is derived from the Latin word facultas which means abi
Etymology ABBA is an acronym formed from the first letters of the surnames of the four b
Etymology Origin Latin appreciare from ad towards and pretium price value M
Etymology The word genius is derived from the Latin word genius which originally re
