Boreal Period
Boreal Period A period in post-glacial (i.e. post-Devensian or Flandrian) times from about 8800–7500 years bp, which preceded the climatic optimum of early Atlantic times (see Atlantic Period). Pollen records (pollen zone) typically show an increasing abundance of thermophilous tree species and also indicate the drier, more continental conditions that characterized the ensuing Atlantic period. The early Boreal corresponds to late Pollen Zone V; otherwise the Boreal is linked with Pollen Zone VI, which is sometimes subdivided to give Zones VIa, VIb, and VIc, according to the most abundant tree pollen represented. For Britain the Boreal Period is significant as the last period in post-glacial times in which Britain was joined to mainland Europe by a land bridge across the Dover Strait.
Boreal Period
Boreal Period A period in post-glacial (i.e. post-Devensian or Flandrian) times from about 8800–7500 years BP, which preceded the climatic optimum of early Atlantic times. Pollen records (pollen zone) typically show an increasing abundance of thermophilous tree species and also indicate the drier, more continental conditions that characterized the ensuing Atlantic period. The early Boreal corresponds to late Pollen Zone V; otherwise the Boreal is linked with Pollen Zone VI, which is sometimes subdivided to give Zones VIa, VIb, and VIc, according to the most abundant tree pollen represented. For Britain, the Boreal period is significant as the last period in post-glacial times in which Britain was joined to mainland Europe by a land bridge across the Dover Strait.
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Atlantic Period , Atlantic Period A period in postglacial times (i.e. post-Devensian or Flandrian) from about 7500 years BP to 5000 years BP which, according to pollen… Sub-Atlantic , Sub-Atlantic A colder, wetter climatic phase which followed more continental Sub-Boreal times. The change from Sub-Boreal to Sub-Atlantic conditions… Atlantes , Atlantic •achromatic, acrobatic, Adriatic, aerobatic, anagrammatic, aquatic, aristocratic, aromatic, Asiatic, asthmatic, athematic, attic, autocratic… Boreal , boreal •beau idéal, ideal, real, surreal •labial • microbial • connubial •adverbial, proverbial •prandial • radial • medial • mondial •cordial, exord… Atlantic mackerel , Scomber scombrus (Atlantic mackerel) See SCOMBRIDAE.
Atlantic mackerel (Scomber scombrus) See SCOMBRIDAE. Amphi-atlantic Species , amphi-Atlantic species The plants that are found on both sides of the northern Atlantic, along the seaboards of eastern North America and western Eur…
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Boreal Period