Miocene foraminiferal environments: Tarakohe Mudstone, Western Nelson
Open Access
- 1 February 1971
- journal article
- research article
- Published by Taylor & Francis in New Zealand Journal of Geology and Geophysics
- Vol. 14 (1), 121-132
- https://doi.org/10.1080/00288306.1971.10422466
Abstract
Diversity, equitability, and classification of benthic foraminiferal assemblages in Tarakohe Mudstone (Golden Bay district, western Nelson, New Zealand) are investigated for paleoenvironmental data. A north-west trending basinal biotope, bordered to east and west by a marginal biotope, is recognized in the lower beds of the formation (Hutchinsonian-Altonian Stages). Upper beds (Clifdenian-Lillburnian Stages) appear to have been deposited in a shallow, near-shore environment. The formation represents a phase of marine retreat, probably northward.Keywords
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