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):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | Depth, top/min | Depth top | m | Strong, C Percy | ||
2 | Depth, bottom/max | Depth bot | m | Strong, C Percy | ||
3 | Lithologic unit/sequence | Unit | Strong, C Percy | |||
4 | Preservation | Preserv | Strong, C Percy | |||
5 | Number of species | Spec No | # | Strong, C Percy | ||
6 | Specimen count | Sp count | # | Strong, C Percy | ||
7 | Ammoelphidiella pustulosa | A. pustulosa | Strong, C Percy | Abundance estimate | ||
8 | Ammoelphidiella uniforamina | A. uniforamina | Strong, C Percy | Abundance estimate | ||
9 | Ammoelphidiella sp. | Ammoelphidiella sp. | Strong, C Percy | Abundance estimate | ||
10 | Anomalinoides sp. | Anomalinoides sp. | Strong, C Percy | Abundance estimate | ||
11 | Bulimina sp. | Bulimina sp. | Strong, C Percy | Abundance estimate | ||
12 | Cassidulinoides aequilatera | C. aequilatera | Strong, C Percy | Abundance estimate | ||
13 | Cassidulinoides braziliensis | C. braziliensis | Strong, C Percy | Abundance estimate | ||
14 | Cassidulinoides chapmani | C. chapmani | Strong, C Percy | Abundance estimate | ||
15 | Cibicides lobatulus | C. lobatulus | Strong, C Percy | Abundance estimate | ||
16 | Cibicides refulgens | C. refulgens | Strong, C Percy | Abundance estimate | ||
17 | Cibicides spp. | Cibicides spp. | Strong, C Percy | Abundance estimate | ||
18 | Cribroelphidium sp. | Cribroelphidium sp. | Strong, C Percy | Abundance estimate | ||
19 | Elphidium excavatum group | E. excavatum gr | Strong, C Percy | Abundance estimate | ||
20 | Elphidium magellanicum | E. magellanicum | Strong, C Percy | Abundance estimate | ||
21 | Epistominella exigua | E. exigua | Strong, C Percy | Abundance estimate | ||
22 | Eponides bradyi | E. bradyi | Strong, C Percy | Abundance estimate | ||
23 | Fissurina bisulcata | F. bisulcata | Strong, C Percy | Abundance estimate | ||
24 | Fissurina sp. | Fissurina sp. | Strong, C Percy | Abundance estimate | ||
25 | Fursenkoina schreibersiana | F. schreibersiana | Strong, C Percy | Abundance estimate | ||
26 | Lenticulina sp. | Lenticulina sp. | Strong, C Percy | Abundance estimate | ||
27 | Marginulina tumida | M. tumida | Strong, C Percy | Abundance estimate | ||
28 | Marginulina sp. | Marginulina sp. | Strong, C Percy | Abundance estimate | ||
29 | Marginulinopsis sp. | Marginulinopsis sp. | Strong, C Percy | Abundance estimate | ||
30 | Melonis affinis | M. affinis | Strong, C Percy | Abundance estimate | ||
31 | Melonis barleeanus | M. barleeanus | Strong, C Percy | Abundance estimate | ||
32 | Miliolidae | Miliolidae | Strong, C Percy | Abundance estimate | Miliolidae, large (Pyrgo spp.) | |
33 | Nodosaria spp. | Nodosaria spp. | Strong, C Percy | Abundance estimate | ||
34 | Nonionella bradii | N. bradii | Strong, C Percy | Abundance estimate | ||
35 | Nonionella iridea | N. iridea | Strong, C Percy | Abundance estimate | ||
36 | Nonionella magnalingua | N. magnalingua | Strong, C Percy | Abundance estimate | ||
37 | Oolina aqiculata | O. aqiculata | Strong, C Percy | Abundance estimate | ||
38 | Oolina globosa | O. globosa | Strong, C Percy | Abundance estimate | ||
39 | Parafissurina lateralis | P. lateralis | Strong, C Percy | Abundance estimate | ||
40 | Pseudonodosaria symmetrica | P. symmetrica | Strong, C Percy | Abundance estimate | ||
41 | Pullenia subcarinata | P. subcarinata | Strong, C Percy | Abundance estimate | ||
42 | Pullenia spp. | Pullenia spp. | Strong, C Percy | Abundance estimate | ||
43 | Pyrulinoides sp. | Pyrulinoides sp. | Strong, C Percy | Abundance estimate | ||
44 | Quinqueloculina seminulum | Q. seminulum | Strong, C Percy | Abundance estimate | ||
45 | Quinqueloculina triangularis | Q. triangularis | Strong, C Percy | Abundance estimate | ||
46 | Rosalina globularis | R. globularis | Strong, C Percy | Abundance estimate | ||
47 | Stainforthia sp. | Stainforthia sp. | Strong, C Percy | Abundance estimate | ||
48 | Vaginulinopsis sp. | Vaginulinopsis sp. | Strong, C Percy | Abundance estimate | ||
49 | Echinodermata fragments | Echinod fragm | Strong, C Percy | Abundance estimate | ||
50 | Ostracoda | Ostrac | Strong, C Percy | Abundance estimate | ||
51 | Diatom fragments | Diatom fragm | Strong, C Percy | Abundance estimate | Shell fragments | |
52 | Sponge spiculae | Sponge spic | Strong, C Percy | Smear slide analysis | ||
53 | Diatom abundance | Diatom abund | Strong, C Percy | Abundance estimate |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1117 data points