New Zealand Journal of Marine and Freshwater Research abstracts

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THE AGE OF GLAUCONITE FROM THE CHATHAM RISE, EAST OF NEW ZEALAND

David J. Cullen

New Zealand Oceanographic Institute, Department of Scientific and Industrial Research, Wellington

Abstract Radiometric analysis indicates that a granular variety of glauconite, widespread on the Chatham Rise, is derived from late Tertiary sediments. Other forms of glauconite, associated with pumice, phosphorite nodules, and glacially-transported erratic blocks, are of Quaternary age. These are quantitatively unimportant, and may have originated as a result of redistribution of components from the older glauconite.

N.Z. Jl mar. Freshwat. Res. 1: 399-406
(Received for publication 24 July 1967)

PDF file of entire paper: medium quality (965K); (scanned from paper original: notes about this process)

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