Data Description

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Citation:
Hannah, Mike J; Wilson, Graeme; Wrenn, John (2000): Marine palynomorph abundance estimates of sediment core CRP-2A (Fig. 2). doi:10.1594/PANGAEA.545144,
Supplement to: Hannah, Mike J; Wilson, Gary S; Wrenn, John (2000): Oligocene and Miocene marine palynomorphs from CRP-2/2A, Victoria Land Basin, Antarctica. Terra Antartica, 7(4), 503-511, hdl:10013/epic.28256.d001
Abstract:
A diverse assemblage of marine palynomorphs was recovered from the Oligocene - Miocene section of CRP-2/2A. Most of the assemblage is composed of previously unrecognised species. Three distinct groups of marine palynomorph were recognised: (1) prasinophytes, mainly Cymatiosphaera, (2) acritarchs, mainly Leiosphaeridia and Sigmopollis although Leiofusa is an important component of the bottom half of the hole, and (3) dinoflagellate cysts. About 27 species of in situ dinoflagellate cysts were recorded, of which seven apparently undescribed species of Lejeunecysta form a prominent component. Reworked specimens of several species of the Paleogene Transantarctic Flora occur in CRP-2/2A sediments. Several abundance peaks of reworked taxa from the Transantarctic Flora are recorded. Three marine palynomorph zones were recognised (MP3, MP2, MP1), considered to be early Oligocene, late Oligocene, and late Oligocene/early Miocene in age respectively. Samples from the Quaternary and Pliocene part of CRP-2/2A were also examined. These proved either barren or yielded very sparse low diversity floras.
Project(s):
Coverage:
Latitude: -77.005980 * Longitude: 163.719450
Minimum DEPTH, sediment/rock: 13.3 m * Maximum DEPTH, sediment/rock: 624.1 m
Event(s):
CRP-2A (14.2 km at 096° true from Cape Roberts) * * Latitude: -77.005980 * Longitude: 163.719450 * Date/Time Start: 1998-10-16T07:30:00 * Date/Time End: 1998-11-25T14:20:00 * Elevation: -177.9 m * Recovery: 624.00 m * Location: off Cape Roberts, Ross Sea, Antarctica * * Campaign: CRP-2 * * Basis: Sampling/drilling from ice * * Device: Core wireline system * * Comment: 921 m at 284° from CRP-1. Sea-ice thickness: 2.0 m (1 Oct) to 2.2 m (23 Nov). Sea riser embedded to 13.03 mbsf. Lateral ice movement: 9.87 m to east from 17 Oct to 23 Nov. HQ core to 199.31 mbsf. NQ core to 624.15 mbsf. 13.03 to 45.97 mbsf, 11.29 m (34%) partially following CRP-2. 45.07 to 624.15 mbsf, 548.67 m (95%) new hole. Deepest core-lithology: hard sandy siltstone. Deepest core-age: earliest Oligocene (ca. 33 Ma on diatoms, nannofossils and dinoflagellates)
Comment:
r = rare, f = few, c = common, a = abundant
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1DEPTH, sediment/rock *DepthmGeocode
2Depth, top/min *Depth topmHannah, Mike J *
3Depth, bottom/max *Depth botmHannah, Mike J *
4Lithologic unit/sequence *UnitHannah, Mike J *
5Pterospermella sp. *Pterospermella sp.Hannah, Mike J *Prasinophytes
6Cymatiosphaera spp. *Cymatiosphaera spp.Hannah, Mike J *Prasinophytes
7Tasmanites spp. *Tasmanites spp.Hannah, Mike J *Prasinophytes
8Leiosphaeridia spp. *Leiosphaeridia spp.Hannah, Mike J *Acritarchs
9Sigmopollis sp. *Sigmopollis sp.Hannah, Mike J *Acritarchs
10Acritarch sp. *Acritarch sp.Hannah, Mike J *var. 1, Acritarchs
11Micrhystridium spp. *Micrhystridium spp.Hannah, Mike J *Acritarchs
12Stellate acritarch *S. acritarchHannah, Mike J *Acritarchs
13Leiofusa sp. *Leiofusa sp.Hannah, Mike J *Acritarchs
14Batiacashaera cooperi *B. cooperiHannah, Mike J *In Situ Dinoflagellates
15Batiacashaera spp. *Batiacashaera spp.Hannah, Mike J *In Situ Dinoflagellates
16Lejeunecysta spp. *Lejeunecysta spp.Hannah, Mike J *In Situ Dinoflagellates
17Lejeunecysta fallax *L. fallaxHannah, Mike J *In Situ Dinoflagellates
18Paralecaniella indentata *P. indentataHannah, Mike J *In Situ Dinoflagellates
19Pterodinium cf. P. cingulatum *P. cf. P. cingulatumHannah, Mike J *In Situ Dinoflagellates
20Impagidinium spp. *Impagidinium spp.Hannah, Mike J *In Situ Dinoflagellates
21Lejeunecysta sp. *Lejeunecysta sp.Hannah, Mike J *var. 4, In Situ Dinoflagellates
22Lejeunecysta sp. *Lejeunecysta sp.Hannah, Mike J *var. 1, In Situ Dinoflagellates
23Lejeunecysta sp. *Lejeunecysta sp.Hannah, Mike J *var. 2, In Situ Dinoflagellates
24Lejeunecysta sp. *Lejeunecysta sp.Hannah, Mike J *var. 7, In Situ Dinoflagellates
25Lejeunecysta sp. *Lejeunecysta sp.Hannah, Mike J *var. 3, In Situ Dinoflagellates
26Lejeunecysta sp. *Lejeunecysta sp.Hannah, Mike J *var. 5, In Situ Dinoflagellates
27Lejeunecysta sp. *Lejeunecysta sp.Hannah, Mike J *var. 6, In Situ Dinoflagellates
28Paralecaniella sp. *Paralecaniella sp.Hannah, Mike J *In Situ Dinoflagellates
29Brigantedinium pynei *B. pyneiHannah, Mike J *In Situ Dinoflagellates
30Phelodinium cranwelliae *P. cranwelliaeHannah, Mike J *In Situ Dinoflagellates
31Phelodinium sp. *Phelodinium sp.Hannah, Mike J *In Situ Dinoflagellates
32Lejeunecysta cowiei *L. cowieiHannah, Mike J *In Situ Dinoflagellates
33Brigantedinium sp. *Brigantedinium sp.Hannah, Mike J *In Situ Dinoflagellates
34Brigantedinium sp. *Brigantedinium sp.Hannah, Mike J *questionable
35Microdinium spp. *Microdinium spp.Hannah, Mike J *In Situ Dinoflagellates
36Batiacasphaera sp. *Batiacasphaera sp.Hannah, Mike J *var. A,In Situ Dinoflagellates
37Pyxidinopsis sp. *Pyxidinopsis sp.Hannah, Mike J *In Situ Dinoflagellates
38Memranilarnacia sp. *Memranilarnacia sp.Hannah, Mike J *In Situ Dinoflagellates
39Deflandrea sp. *Deflandrea sp.Hannah, Mike J *In Situ Dinoflagellates
40Glaphyrocysta sp. *Glaphyrocysta sp.Hannah, Mike J *In Situ Dinoflagellates
41Spiniferites ramosus *S. ramosusHannah, Mike J *In Situ Dinoflagellates
42Cleistosphaeridium sp. *Cleistosphaeridium sp.Hannah, Mike J *In Situ Dinoflagellates
43Corrudinium spp. *Corrudinium spp.Hannah, Mike J *questionable
44Selenopenphyx sp. *Selenopenphyx sp.Hannah, Mike J *questionable
45Spiniferites sp. *Spiniferites sp.Hannah, Mike J *In Situ Dinoflagellates
46Thalassiphora pelagica *T. pelagicaHannah, Mike J *In Situ Dinoflagellates
47Valensiella sp. *Valensiella sp.Hannah, Mike J *In Situ Dinoflagellates
48Pentadinium sp. *Pentadinium sp.Hannah, Mike J *In Situ Dinoflagellates
49Cyclonephelium sp. *Cyclonephelium sp.Hannah, Mike J *In Situ Dinoflagellates
50Alisocysta sp. *Alisocysta sp.Hannah, Mike J *In Situ Dinoflagellates
51Impagidinium cf. I. elegans *I. cf. I. elegansHannah, Mike J *In Situ Dinoflagellates
52Cometodinium sp. *Cometodinium sp.Hannah, Mike J *In Situ Dinoflagellates
53Hystrichosphaeridium cf. H. patulum *H. cf. H. patulumHannah, Mike J *In Situ Dinoflagellates
54Operculodinium sp. *Operculodinium sp.Hannah, Mike J *In Situ Dinoflagellates
55Enneadocysta partridgei *E. partridgeiHannah, Mike J *Reworked Dinoflagellates
56Alterbidinium distinctum *A. distinctumHannah, Mike J *Reworked Dinoflagellates
57Vozzhennikovia apertura *V. aperturaHannah, Mike J *Reworked Dinoflagellates
58Deflandrea antarctica *D. antarcticaHannah, Mike J *Reworked Dinoflagellates
59Spinidinium macmurdoense *S. macmurdoenseHannah, Mike J *Reworked Dinoflagellates
60Vozzhennikovia cf. V. apertura *V. cf. V. aperturaHannah, Mike J *Reworked Dinoflagellates
61Apectodinium homomorphum *A. homomorphumHannah, Mike J *questionable, Reworked Dinoflagellates
62Turbiosphaera filosa *T. filosaHannah, Mike J *Reworked Dinoflagellates
63Areosphaeridium sp. *Areosphaeridium sp.Hannah, Mike J *questionable, Reworked Dinoflagellates
64Arachnodinium antarcticum *A. antarcticumHannah, Mike J *Reworked Dinoflagellates
65Alterbidinium cf. A. distinctum *A. cf. A. distinctumHannah, Mike J *Reworked Dinoflagellates
66Hystrichosphaeridium sp. *Hystrichosphaeridium sp.Hannah, Mike J *Reworked Dinoflagellates
67Alterbidinium cf. A. asymmetricum *A. cf. A. asymmetricumHannah, Mike J *Reworked Dinoflagellates
68Spinidinium cf. S. macmurdoense *S. cf. S. macmurdoenseHannah, Mike J *Reworked Dinoflagellates
69Alterbidinium asymetricum *A. asymetricumHannah, Mike J *Reworked Dinoflagellates
70Hystrichosphaeridium tubiferum *H. tubiferumHannah, Mike J *Reworked Dinoflagellates
71Foraminifera, linings *Foram linHannah, Mike J *Others
72Indeterminata *IndetHannah, Mike J *Others
73Scolecodonta *ScolecodontaHannah, Mike J *Others
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1210 data points

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