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Strong, C Percy; Webb, Peter-Noel (2000): Occurence of foraminifera and other microfossils in sediment core CRP-2/2A (Table 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.183510, Supplement to: Strong, CP; Webb, P-N (2000): Oligocene and Miocene foraminifera from CRP-2/2A, Victoria Land Basin, Antarctica. Terra Antartica, 7(4), 461-472, hdl:10013/epic.28260.d001

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Abstract:
Sparse to moderately abundant foraminiferal assemblages from Oligocene and Lower Miocene sediments in the CRP-2/2A drillhole contain C.27 genera and 42 species of calcareous benthic foraminifera. No planktic or agglutinated taxa were observed. On the basis of their faunal characteristics, four Foraminiferal Units are defined in drillhole succession: Foraminiferal Unit I (26.91-193.95 mbsf), mostly sparse assemblages with Elphidium magellanicum and Cribroelphidium sp.; Foraminiferal Unit II (193.95-342.42 mbsf), mostly moderately abundant assemblages with Cassidulinoides aequilatera and Eponides bradyi; Foraminiferal Unit III (342.42-486.19 mbsf), moderately abundant to sparse assemblages characterised by Cassidulinoides chapmani and Stainforthia sp.; and Foraminiferal Unit IV, Improverished (486.19-624.15, total depth, mbsf), with mostly barren residues, but with large Milioliidae recorded in situ at various horizons in the drill core.
Foraminiferal Units I-IV lack taxa allowing correlation to standard zonal schemes. Inspection of faunal records from CIROS-1 and DSDP 270 indicates that, although the faunas show an overall similarity, CRP-2/2A Foraminiferal Units I-IV are not identifiable at these sites. The units are therefore most likely to reflect local environmental changes, and probably will prove useful for local correlation, but their lateral extent is undetermined. All four assemblages apparently represent various glacially-influenced shelf environments, and appear to reflect a long term deepening trend from Units IV to II, from perhaps inner to mid or outer-shelf depths, followed by a return to shallower, inner shelf, conditios for Unit I.
Project(s):
Cape Roberts Project (CRP)
Coverage:
Latitude: -77.005983 * Longitude: 163.719450
Date/Time Start: 1998-10-01T00:00:00 * Date/Time End: 1998-10-01T00:00:00
Minimum Elevation: -177.9 m * Maximum Elevation: -177.9 m
Event(s):
CRP-2 (14.2 km at 096° true from Cape Roberts) * Latitude: -77.005983 * Longitude: 163.719450 * Date/Time: 1998-10-01T00:00:00 * Elevation: -177.9 m * Recovery: 57.42 m * Location: off Cape Roberts, Ross Sea, Antarctica * Campaign: CRP-2 * Basis: Sampling/drilling from ice * Method/Device: Core wireline system (CWS) * 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
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Depth, top/minDepth topmStrong, C Percy
2 Depth, bottom/maxDepth botmStrong, C Percy
3 Lithologic unit/sequenceUnitStrong, C Percy
4 PreservationPreservStrong, C Percy
5 Number of speciesSpec No#Strong, C Percy
6 Specimen countSp count#Strong, C Percy
7 Ammoelphidiella pustulosaA. pustulosaStrong, C PercyAbundance estimate
8 Ammoelphidiella uniforaminaA. uniforaminaStrong, C PercyAbundance estimate
9 Ammoelphidiella sp.Ammoelphidiella sp.Strong, C PercyAbundance estimate
10 Anomalinoides sp.Anomalinoides sp.Strong, C PercyAbundance estimate
11 Bulimina sp.Bulimina sp.Strong, C PercyAbundance estimate
12 Cassidulinoides aequilateraC. aequilateraStrong, C PercyAbundance estimate
13 Cassidulinoides braziliensisC. braziliensisStrong, C PercyAbundance estimate
14 Cassidulinoides chapmaniC. chapmaniStrong, C PercyAbundance estimate
15 Cibicides lobatulusC. lobatulusStrong, C PercyAbundance estimate
16 Cibicides refulgensC. refulgensStrong, C PercyAbundance estimate
17 Cibicides spp.Cibicides spp.Strong, C PercyAbundance estimate
18 Cribroelphidium sp.Cribroelphidium sp.Strong, C PercyAbundance estimate
19 Elphidium excavatum groupE. excavatum grStrong, C PercyAbundance estimate
20 Elphidium magellanicumE. magellanicumStrong, C PercyAbundance estimate
21 Epistominella exiguaE. exiguaStrong, C PercyAbundance estimate
22 Eponides bradyiE. bradyiStrong, C PercyAbundance estimate
23 Fissurina bisulcataF. bisulcataStrong, C PercyAbundance estimate
24 Fissurina sp.Fissurina sp.Strong, C PercyAbundance estimate
25 Fursenkoina schreibersianaF. schreibersianaStrong, C PercyAbundance estimate
26 Lenticulina sp.Lenticulina sp.Strong, C PercyAbundance estimate
27 Marginulina tumidaM. tumidaStrong, C PercyAbundance estimate
28 Marginulina sp.Marginulina sp.Strong, C PercyAbundance estimate
29 Marginulinopsis sp.Marginulinopsis sp.Strong, C PercyAbundance estimate
30 Melonis affinisM. affinisStrong, C PercyAbundance estimate
31 Melonis barleeanusM. barleeanusStrong, C PercyAbundance estimate
32 MiliolidaeMiliolidaeStrong, C PercyAbundance estimateMiliolidae, large (Pyrgo spp.)
33 Nodosaria spp.Nodosaria spp.Strong, C PercyAbundance estimate
34 Nonionella bradiiN. bradiiStrong, C PercyAbundance estimate
35 Nonionella irideaN. irideaStrong, C PercyAbundance estimate
36 Nonionella magnalinguaN. magnalinguaStrong, C PercyAbundance estimate
37 Oolina aqiculataO. aqiculataStrong, C PercyAbundance estimate
38 Oolina globosaO. globosaStrong, C PercyAbundance estimate
39 Parafissurina lateralisP. lateralisStrong, C PercyAbundance estimate
40 Pseudonodosaria symmetricaP. symmetricaStrong, C PercyAbundance estimate
41 Pullenia subcarinataP. subcarinataStrong, C PercyAbundance estimate
42 Pullenia spp.Pullenia spp.Strong, C PercyAbundance estimate
43 Pyrulinoides sp.Pyrulinoides sp.Strong, C PercyAbundance estimate
44 Quinqueloculina seminulumQ. seminulumStrong, C PercyAbundance estimate
45 Quinqueloculina triangularisQ. triangularisStrong, C PercyAbundance estimate
46 Rosalina globularisR. globularisStrong, C PercyAbundance estimate
47 Stainforthia sp.Stainforthia sp.Strong, C PercyAbundance estimate
48 Vaginulinopsis sp.Vaginulinopsis sp.Strong, C PercyAbundance estimate
49 Echinodermata fragmentsEchinod fragmStrong, C PercyAbundance estimate
50 OstracodaOstracStrong, C PercyAbundance estimate
51 Diatom fragmentsDiatom fragmStrong, C PercyAbundance estimateShell fragments
52 Sponge spiculaeSponge spicStrong, C PercySmear slide analysis
53 Diatom abundanceDiatom abundStrong, C PercyAbundance estimate
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1117 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Depth top [m]		2 
Depth bot [m]		3 
Unit		4 
Preserv		5 
Spec No [#]		6 
Sp count [#]		7 
A. pustulosa		8 
A. uniforamina		9 
Ammoelphidiella sp.		10 
Anomalinoides sp.		11 
Bulimina sp.		12 
C. aequilatera		13 
C. braziliensis		14 
C. chapmani		15 
C. lobatulus		16 
C. refulgens		17 
Cibicides spp.		18 
Cribroelphidium sp.		19 
E. excavatum gr		20 
E. magellanicum		21 
E. exigua		22 
E. bradyi		23 
F. bisulcata		24 
Fissurina sp.		25 
F. schreibersiana		26 
Lenticulina sp.		27 
M. tumida		28 
Marginulina sp.		29 
Marginulinopsis sp.		30 
M. affinis		31 
M. barleeanus		32 
Miliolidae		33 
Nodosaria spp.		34 
N. bradii		35 
N. iridea		36 
N. magnalingua		37 
O. aqiculata		38 
O. globosa		39 
P. lateralis		40 
P. symmetrica		41 
P. subcarinata		42 
Pullenia spp.		43 
Pyrulinoides sp.		44 
Q. seminulum		45 
Q. triangularis		46 
R. globularis		47 
Stainforthia sp.		48 
Vaginulinopsis sp.		49 
Echinod fragm		50 
Ostrac		51 
Diatom fragm		52 
Sponge spic		53 
Diatom abund
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