Accession Number : AD0710811

Title :   FAUNAL, SEDIMENTARY AND MAGNETIC INVESTIGATIONS OF ARCTIC OCEAN BOTTOM CORES.

Descriptive Note : Master's thesis,

Corporate Author : WISCONSIN UNIV MADISON

Personal Author(s) : Steuerwald,Bradley Allen

Report Date : 1969

Pagination or Media Count : 57

Abstract : Cores taken from ice-island T-3 in the Arctic Ocean do not reflect marked climatic changes. Correlation was attempted among four cores taken from a small region of the Alpha Cordillera. Correlation attempts are based on two horizons--the tops of the cores and the level of the Brunhes-Matuyama magnetic boundary, found by using a spinner magnetometer. Correlation on the basis of plankton abundance and amounts of ice-rafted debris is unfeasible. The plankton abundance and amounts of ice-rafted material show no relationship, as they should if the Arctic fluctuated between warm open conditions and closed rigid conditions. The most significant data for correlation are obtained from the single planktonic foraminifer, Globigerina pachyderma. (Author)

Descriptors :   (*OCEAN BOTTOM SAMPLING, *ARCTIC OCEAN), (*PLANKTON, ABUNDANCE), SEDIMENTATION, DEPOSITS, TEMPERATURE, SEA WATER, MAGNETOMETERS, ECOLOGY, ICE ISLANDS, CLIMATE, FORAMINIFERA, THESES

Subject Categories : Biological Oceanography
      Physical and Dynamic Oceanography

Distribution Statement : APPROVED FOR PUBLIC RELEASE