bathyal zone

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bathyal zone

[′bath·ē·əl ‚zōn]
(oceanography)
The biogeographic realm of the ocean depths between 100 and 1000 fathoms (180 and 1800 meters).
References in periodicals archive ?
A depth as shallow as 76 m was proposed as an oxygen minimum level in the Western Interior [42], and if the depth is valid, the planktonic-benthonic ratios that were observed in the Abakaliki fold belt would indicate outer shelf or upper bathyal depths with minimum depth of about 100 m.
In The Silent Deep, Koslow--a former CSIRO marine scientist--provides his readers with a full account of the deep ocean, including the history of exploration, the chemical and physical forces that generate life, and the ecology of seamounts and the species-rich (possibly the richest) ecosystems that are the abyssal and bathyal plains.
The Cenozoic benthic foraminiferal assemblages in most of these wells, as described from cuttings samples plus occasional sidewall core samples, are typical for neritic or upper or lower bathyal conditions.
The drill targets are Pliocene coquina limestones of extremely high poroperm and good reservoir quality Upper Miocene bathyal sandstones.
BIOSTRATIGRAPHIC AND PALEOENVIRONMENTAL SIGNIFICANCE OF EOCENE-OLIGOCENE PALYNOMORPHS FROM A DEEP BATHYAL ENVIRONMENT, COTE D'IVOIRE-GHANA TRANSFORM MARGIN.