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Influence of northwest Pacific productivity on North Pacific Intermediate Water oxygen concentrations during the Bølling-Ållerød interval (14.7-12.9 ka)

Geology

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ORCID iD , , , , and
https://doi.org/10.1130/G20508.1

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Abstract

Elevated productivity in the northwest Pacific is suggested as a new possible control driving past intervals of low-O2 intermediate water along the western continental margin of North America. According to this mechanism, O2 consumption would occur near the site of formation of North Pacific Intermediate Water (NPIW), due to increased respiration of organic carbon in response to a high-productivity event. Evidence is provided for such a productivity increase during the Bølling-Ållerød interval (14.7–12.9 ka), a time when laminated sediments were deposited along the northern California margin. By this mechanism, low-O2 events in intermediate waters off the western North American margin could occur without significant changes in the rate of NPIW ventilation.

Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Influence of northwest Pacific productivity on North Pacific Intermediate Water oxygen concentrations during the Bølling-Ållerød interval (14.7-12.9 ka)
Series title:
Geology
DOI:
10.1130/G20508.1
Volume:
32
Issue:
7
Year Published:
2004
Language:
English
Publisher:
Geological Society of America
Contributing office(s):
Woods Hole Coastal and Marine Science Center
Description:
4 p.
First page:
633
Last page:
636
Online Only (Y/N):
N
Additional Online Files (Y/N):
N