Occurence of marine palynomorphs of sediment core CRP-1 (Table 1) ...

The first core of the Cape Roberts Project, CRP-1, penetrated a Quaternary and lower Miocene section rather than the anticipated Palaeogene sediments. Initial palynologic study was conducted at the Crary Science and Engineering Laboratory, McMurdo Station, concurrent with drilling. Rapid and environ...

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Bibliographic Details
Main Authors: Wrenn, John, Hannah, Mike J, Raine, J Ian
Format: Dataset
Language:English
Published: PANGAEA 1998
Subjects:
DEPTH, sediment/rock
Depth, top/min
Depth, bottom/max
Leiosphaeridia sp.
Lycopodium spike
Tasmanites
Cymatiosphaera sp.
Vozzhennikovia apertura
Impagidinium sp.
Indeterminata/varia
Sigmopollis sp.
Batiacasphaera cooperi
Paralecaniella indentata
Psilate sphere
Foraminifera, linings
Spinidinium macmurdoense
Operculodinium sp.
Micrhystridium sp.
Arthropod and annelid parts
Spiniferites sp.
Lejeunecysta cowiei
Brigantedinium pynei
Lejeunecysta fallax
Alterbidinium cf. asymmetrica
Deflandrea antarctica
Pterospermella sp.
Operculodinium bergmannii
Vozzhennikovia cf. apertura
Phelodinium cranwelliae
Dinoflagellates, total
Acritarcha
Core wireline system
Counting, palynology
CRP-1
Sampling/drilling ice
Cape Roberts Project CRP
Antarctic
Arctic
Cape Roberts
Hannah
McMurdo Station
Ross Sea
Antarc*
Antarctica
antartic*
Foraminifera*
Sea ice
Online Access:https://dx.doi.org/10.1594/pangaea.54984
https://doi.pangaea.de/10.1594/PANGAEA.54984
Description
Summary:The first core of the Cape Roberts Project, CRP-1, penetrated a Quaternary and lower Miocene section rather than the anticipated Palaeogene sediments. Initial palynologic study was conducted at the Crary Science and Engineering Laboratory, McMurdo Station, concurrent with drilling. Rapid and environmentally safe sample processing was made possible by the use of a focused microwave digestion unit that scrubbed acid fumes. In situ and/or reworked dinocysts (dinoflagellate cysts), acritarchs (leiospheres and acanthomorphs), and prasinophyte phycomata are present in the 35 samples studied. Overall, the CRP-1 assemblages are similar to Arctic marine palynomorph assemblages that are used there as ice margin indicators. Some of the acanthomorph acritarchs recovered from the CRP-1 core closely resemble cysts of extant Antarctic autotrophic sea-ice dinoflagellates. It is possible that some of these acanthomorphs are actually dinocysts, and could be used as indicators of sea-ice conditions similar to today.Most of the ... : Supplement to: Wrenn, John; Hannah, Mike J; Raine, J Ian (1998): Diversity and palaeoenvironmental significance of late Cenozoic marine palynomorphs from the CRP-1 Core, Ross Sea, Antarctica. Terra Antartica, 5(3), 553-570 ...

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