The age and palaeoecology of the St Erth Beds, southern England, based on planktonic foraminifera

Summary Planktonic foraminifera are recorded for the first time from the St Erth Beds but they are small and very rare. A late Pliocene G. inflaia Zone age is postulated on the presence of Globorotalia inflata and dextrally coiled Neogloboquadrina pachyderma . It is suggested that the depth of water...

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Bibliographic Details
Published in:Geological Magazine
Main Author: Graham Jenkins, D.
Format: Article in Journal/Newspaper
Language:English
Published: Cambridge University Press (CUP) 1982
Subjects:
Online Access:http://dx.doi.org/10.1017/s0016756800025887
https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0016756800025887
Description
Summary:Summary Planktonic foraminifera are recorded for the first time from the St Erth Beds but they are small and very rare. A late Pliocene G. inflaia Zone age is postulated on the presence of Globorotalia inflata and dextrally coiled Neogloboquadrina pachyderma . It is suggested that the depth of water at the time of deposition was much less than 100 m, possibly in the photic zone, and the palaeotemperature was in the range of 10–18 °C.