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Late Pliocene dinoflagellate cyst and diatom analysis from a high resolution sequence in DSDP Site 594, Chatham Rise, south west Pacific

Citation

McMinn, A and Howard, W and Roberts, D, Late Pliocene dinoflagellate cyst and diatom analysis from a high resolution sequence in DSDP Site 594, Chatham Rise, south west Pacific, Marine Micropaleontology, 43, (3-4) pp. 207-221. ISSN 0377-8398 (2001) [Refereed Article]

DOI: doi:10.1016/S0377-8398(01)00026-3

Abstract

A high resolution mixed carbonate and siliciclastic sequence from DSDP Site 594 contains a detailed record of climate change in the late Pliocene. The sequence can be accurately dated by the LAD of Nitzschia weaveri, the LAD of Thalassiosira insigna, the LAD of T. vulnifica and the LAD of T. kolbei diatom datums. Carbonate content and δ18O signatures provide added resolution and place the sequence between isotope stages 100 and 92. The sequence contains well-preserved and diverse dinoflagellate cyst floras. Use of principal component (PCA) and canonical correspondence analyses (CCA) identifies changes in the assemblages that principally reflect warming and cooling trends. Species associated with warmer climates included Impagidinium patulum, I. paradoxum and I. sp. cf. paradoxum while those from cooler climates include Invertecysta tabulata and I. velorum. CCA is shown to be a valuable method of determining the past environmental preferences of extinct species such as I. tabulata. © 2001 Elsevier Science B.V. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Earth Sciences
Research Group:Geology
Research Field:Palaeontology (incl. Palynology)
Objective Division:Expanding Knowledge
Objective Group:Expanding Knowledge
Objective Field:Expanding Knowledge in the Earth Sciences
Author:McMinn, A (Professor Andrew McMinn)
Author:Howard, W (Associate Professor William Howard)
Author:Roberts, D (Dr Donna Roberts)
ID Code:22417
Year Published:2001
Web of Science® Times Cited:3
Deposited By:IASOS
Deposited On:2001-08-01
Last Modified:2011-08-03
Downloads:0

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