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Новый англо-русский словарь. 2013.
cherts
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Chert (Gestein) — Cherts (dunkle Lagen) im devonischen Corriganville New Creek Kalkstein, Everett, Pennsylvania Cherts (im Deutschen oft unter dem Namen Hornstein) sind sedimentär und diagenetisch entstandene Kieselgesteine … Deutsch 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
Precambrian time — Interval of geologic time from с 3. 8 billion years ago, the age of the oldest known rocks, to 544 million years ago, the beginning of the Cambrian Period. This interval represents more than 80% of the geologic record and thus provides important… … Universalium
Rhynie chert — The Rhynie chert is an Early Devonian Lagerstättefound near the village of Rhynie, Aberdeenshire, Scotland, containing exceptionally preserved plant, fungus, lichen and animal material petrified in three dimensions by covering with fast setting… … Wikipedia
West Virginia Prehistory — The area now known as West Virginia was a favorite hunting ground of numerous Native American peoples before the arrival of European settlers. Many ancient man made earthen mounds from various mound builder cultures survive, especially in the… … Wikipedia
Pilbara craton — The Pilbara craton (the Pilbara province in northwest Western Australia), along with the Kaapvaal craton (the Kaapvaal province of South Africa) are the only remaining areas of pristine Archaean 3.6 2.7 Ga crust on Earth. Similarities of their… … Wikipedia
siliceous rock — Any of a group of sedimentary rocks that consist largely or almost entirely of silicon dioxide (SiO2), either as quartz or as chert, the most common siliceous rock. It occurs in beds and in nodules. Bedded cherts may be an original organic or… … Universalium
Dumfriesshire — Not to be confused with Dumfriesshire (Scottish Parliament constituency) or Dumfriesshire (UK Parliament constituency). Dumfries County (until circa 1890) … Wikipedia
Volcanogenic massive sulfide ore deposit — Volcanogentic massive sulfide ore deposit at Kidd Mine, Timmins, Ontario, Canada, formed 2.4 billion years ago on an ancient seafloor. Volcanogenic massive sulfide ore deposits (VMS ) are a type of metal sulfide ore deposit, mainly Cu Zn Pb which … Wikipedia
Chert — For the Spanish municipality, see Xert. Chert Chert ( / … Wikipedia
Geosyncline — In geology, geosyncline is a term still occasionally used for a subsiding linear trough that was caused by the accumulation of sedimentary rock strata deposited in a basin and subsequently compressed, deformed, and uplifted into a mountain range … Wikipedia
