characteristic fossil

characteristic fossil
Макаров: характерные ископаемые

Универсальный англо-русский словарь. . 2011.

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  • Fossil fuel — Coal, one of the fossil fuels. Fossil fuels are fuels formed by natural processes such as anaerobic decomposition of buried dead organisms. The age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes… …   Wikipedia

  • Polystrate fossil — [ Nova Scotia, Canada (printed 1868).] Polystrate or upright fossil describes fossils of single organisms (such as tree trunks) that run through more than one geological strata. Entire fossil forests have been discovered [… …   Wikipedia

  • index fossil — Geol., Paleontol. a widely distributed fossil, of narrow range in time, regarded as characteristic of a given geological formation, used esp. in determining the age of related formations. Also called guide fossil. [1895 1900] * * *       any… …   Universalium

  • index fossil — in′dex fos sil n. gel pal a widely distributed fossil, of narrow range in time, regarded as characteristic of a given geological formation and used esp. in determining the age of related formations • Etymology: 1895–1900 …   From formal English to slang

  • geochronology — geochronologic /jee oh kron l oj ik/, geochronological, adj. geochronologist, n. /jee oh kreuh nol euh jee/, n. the chronology of the earth, as based on both absolute and relative methods of age determination. [1890 95; GEO + CHRONOLOGY] * * *… …   Universalium

  • Faunal assemblage — is the archaeological or paleontological term for a group of associated animal fossils found together in a given stratum. The principle of faunal succession is used in biostratigraphy to determine each biostratigraphic unit, or biozone. The… …   Wikipedia

  • Principle of faunal succession — The principle of faunal succession is based on the observation that sedimentary rock strata contain fossilised flora and fauna, and that these fossils succeed each other vertically in a specific, reliable order that can be identified over wide… …   Wikipedia

  • Carboniferous Period — Interval of geologic time 354–290 million years ago, marked by great changes in world geography. All the landmasses drew closer together as a result of tectonic plate movements. The supercontinent Gondwana occupied much of the Southern Hemisphere …   Universalium

  • Biozone — Biostratigraphic units or Biozones are intervals of geological strata that are defined on the basis of their characteristic fossil taxa. A biostratigraphic unit may be defined on the basis of a single taxon or combinations of taxa, on relative… …   Wikipedia

  • Biochron — A Biochron (from the Greek bios , life; and khronos , time) is the length of time represented by a biostratigraphic zone. Biochrons are named after characteristic fossil organisms or taxa that characterise that interval in time.References*… …   Wikipedia

  • Kansan Glacial Stage — ▪ geology       major division of Pleistocene deposits and time in North America (the Pleistocene Epoch began about 2,500,000 years ago and ended about 10,000 years ago). The Kansan glaciation followed the Aftonian Interglacial Stage and preceded …   Universalium


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