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Palynomorph concentrations in ODP Hole 105-645B samples (Table 1)

Dataset homepage

Citation

de Vernal A, Mudie P J (1989). Palynomorph concentrations in ODP Hole 105-645B samples (Table 1). PANGAEA - Publishing Network for Geoscientific and Environmental Data. Occurrence dataset https://doi.org/10.1594/pangaea.744818 accessed via GBIF.org on 2022-06-27.

Description

Significant changes in terrestrial and marine environments of Baffin Bay occurred throughout the late Pliocene to Holocene. Upper Pliocene and lowermost Pleistocene sediments contain abundant pollen and spores, which indicates the existence of open, coniferous, boreal forest to forest tundra in areas surrounding Baffin Bay. The late Pliocene-earliest Pleistocene also is characterized by relatively rich, dinoflagellate cyst and acritarch assemblages of boreal character, in which the dominance of Cymatiosphaera and Peridiniaceae may indicate neritic influx of sediments. In contrast, the late-early Pleistocene to Holocene interval is marked by a sparse terrestrial and marine palynoflora, with rare productive intervals. The general paucity of the Pleistocene palynoflora suggests low primary productivity, both on land and offshore, probably caused by cold, dry, high arctic conditions.

Taxonomic Coverages

  1. Protozoa
    rank: kingdom
  2. Plantae
    rank: kingdom

Geographic Coverages

Event: 105-645B, Baffin Bay ;

Bibliographic Citations

Contacts

Anne de Vernal
originator
Peta J Mudie
originator
metadata author
PANGAEA - Data Publisher for Earth & Environmental Science
email: info@pangaea.de
homepage: https://www.pangaea.de
administrative point of contact
PANGAEA - Data Publisher for Earth & Environmental Science
email: info@pangaea.de
homepage: http://www.pangaea.de
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