Hostname: page-component-7b7567c8c-kwt9d Total loading time: 0 Render date: 2026-11-14T20:20:53.990Z Has data issue: false hasContentIssue false

North Pacific Radiolarian Assemblages and their Relationship to Oceanographic Parameters

Published online by Cambridge University Press:  20 January 2017

Harvey Maurice Sachs*
Affiliation:
CLIMAP, Department of Geological Sciences, Brown University, Providence Rhode Island 02912
*
Current address: School of Oceanography, Oregon State University, Corvallis, Oregon 97331

Abstract

A quantitative study of the distribution of Radiolaria in surface sediments of the North Pacific has demonstrated the feasibility of utilizing complete radiolarian thanatocoenoses as indicators of past oceanographic conditions.

In samples from 36 core tops from the region 33° N-54° N, 148° E-140° W, 87–96% of all radiolarians encountered could be assigned to one of 120 taxa recognized. Q-mode factor analysis of distributional data for the 57 most abundant species yields four independent assemblages. Three of these reflect near-surface oceanographic conditions, and the fourth responds to bottom conditions. Regression-developed transfer functions describe the relationship between the assemblages and oceanographic parameters.

Information

Type
Original Articles
Copyright
University of Washington

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable