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allomember

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English

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Noun

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allomember (plural allomembers)

  1. (geology) A subdivision of an alloformation that is distinguishable by characteristics such as lithology or fossil content.
    • 1990, Roy R. Lemon, Principles of Stratigraphy, page 520:
      An alloformation may be completely or only partly divided into allomembers, if some useful purpose is served, or it many have no allomembers.
    • 2006, Jane E. Francis, Duncan Pirrie, J. Alistair Crame, Cretaceous-Tertiary High-latitude Palaeoenvironments, page 129:
      Within these allomembers Porebski ( 1995 ) recognized a total of eight transgressive-regressive ( T-R ) cycles.
    • 2011, Cathy Busby, Antonio Azor Pérez, Tectonics of Sedimentary Basins: Recent Advances:
      Lateral shifts in the location of flexural depocenters also take place on the scale of allomembers.
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