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Strong, C Percy; Webb, Peter-Noel (2001): (Table 1) Distribution and numerical abundance of foraminifera of sediment core CRP-3 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.183918, Supplement to: Strong, CP; Webb, P-N (2001): Lower Oligocene foraminiferal fauna from CRP-3 drillhole, Victoria Land Basin, Antarctica. Terra Antartica, 8(4), 347-358, hdl:10013/epic.28237.d001

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Abstract:
A foraminiferal fauna comprising c. 33 genera and c. 53 species was recovered from a suite of 156 Lower Oligocene sediment samples, mostly muddy sandstone and siltstone, selected over the 2.80 - 823.11 mbsf depth range in the CRP-3 drillhole. All foraminifers, except for 2 isolated specimens, occurred above 340 mbsf, with 54 of 103 samples from above this depth being fossiliferous. At a generic and even a specific level, the fauna contains many components for the present-day Antarctic foraminiferal biota, indicating that its origin is at least as old as early Oligocene.
Foraminiferal assemblages represent a single biofacies which is characterised by low diversity, and by dominant and persistent occurrences of Cassidulinoides chapmani, other Cassidulinoides and Globocassidulina species, and Stainforthia sp. These taxa and commonly accompanied by Cibicides lobatulus, Epistominella exigna, Fissurina spp. Nonionella spp., and Oolina spp. Large miliolids occur as isolated specimens at various levels. Planktic species are absent, and agglutinated taxa occur only rarely and sporadically. Preservation generally is fair good, while absolute abundance is very low, with a maximum of c. 6 specimens/gram, and most samples containing <1 specimen/gram. These assemblages probably represent mid to outer shelf depth (50-200 m) in glacially influenced environments with a high sedimentation rate and poor oceanic connections.
Although the CRP-3 fauna closely resembles the one from Foraminiferal Unit III as defined in CRP-2/2A (CRP-2/2A Science Team, 1999; Strong & Webb, 2000, hdl:10013/epic.28260.d001), absence of some species, and the first records of others in the uppermost CRP-3 section, is consistent with an interpretation of minimal overlap between the CRP-2/2A and CRP-3 sediments. The fauna also appears correlative with the Globocassidulina-Cassidulinoides-Trochoeiphidiella Assemblage Zone from lower DSDP-270, and with faunas from the lower but not lowermost, section at CIROS-1.
Project(s):
Coverage:
Latitude: -77.006000 * Longitude: 163.719000
Date/Time Start: 1999-10-09T00:00:00 * Date/Time End: 1999-11-19T00:00:00
Minimum DEPTH, sediment/rock: 3.160 m * Maximum DEPTH, sediment/rock: 406.400 m
Event(s):
CRP-3 * Latitude: -77.006000 * Longitude: 163.719000 * Date/Time Start: 1999-10-09T00:00:00 * Date/Time End: 1999-11-19T00:00:00 * Elevation: -295.0 m * Penetration: 939 m * Recovery: 936 m * Location: Ross Sea * Campaign: CRP-3 * Basis: Sampling/drilling from ice * Method/Device: Core wireline system (CWS) * Comment: 11.76 km at 76° true from Cape Roberts, 2.04 km at 225° true from CRP-2. Fast ice thickness: 2.0 to 2.2 m. Sea rise embedded to 9.55 mbsf. Lateral ice movement from spudding 5.0 m to 82° true. HQ core to 345.85 mbsf. NQ core to 939.42 mbsf. Core recovery 97%. Phase 1 logging to 345 mbsf, Phase 2 logging to 773 mbsf, Phase 3 logging to 918 mbsf. Deepest Cenozoic lithology and depth: sandstone breccia from 822.87 to 823.11 mbsf. Age of oldest Cenozoic strata: earliest Oligocene or latest Eocene. Deepest core lithology and depth: light red-brown quartz-cemented quartz sandstone to 939.42 mbsf. Age of bedrock: (mid?) Devonian.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
DEPTH, sediment/rockDepth sedmGeocode
Depth, top/minDepth topmStrong, C Percy
Depth, bottom/maxDepth botmStrong, C Percy
Lithologic unit/sequenceUnitStrong, C Percy
Number of speciesSpec No#Strong, C PercyCounting, foraminifera, benthic
Specimen countSp count#Strong, C PercyCounting, foraminifera, benthic
Foraminifera, benthic preservationForam benth preservStrong, C Percy
Anomalina spp.Anomalina spp.#Strong, C PercyCounting, foraminifera, benthic
Anomalinoides cf. eoglabraA. cf. eoglabra#Strong, C PercyCounting, foraminifera, benthic
10 Anomalinoides fasciatusA. fasciatus#Strong, C PercyCounting, foraminifera, benthic
11 Anomalinoides globulosusA. globulosus#Strong, C PercyCounting, foraminifera, benthic
12 Anomalinoides miosuturalisA. miosuturalis#Strong, C PercyCounting, foraminifera, benthic
13 Anomalinoides spp.Anomalinoides spp.#Strong, C PercyCounting, foraminifera, benthic
14 Astacolus spp.Astacolus spp.#Strong, C PercyCounting, foraminifera, benthic
15 Baggina cf. breviorB. cf. brevior#Strong, C PercyCounting, foraminifera, benthic
16 Bulimina sp.Bulimina sp.#Strong, C PercyCounting, foraminifera, benthic
17 Cassidulinoides bradyiC. bradyi#Strong, C PercyCounting, foraminifera, benthic
18 Cassidulinoides braziliensisC. braziliensis#Strong, C PercyCounting, foraminifera, benthic
19 Cassidulinoides chapmaniC. chapmani#Strong, C PercyCounting, foraminifera, benthic
20 Cribroelphidium sp.Cribroelphidium sp.#Strong, C PercyCounting, foraminifera, benthic
21 Cibicides lobatulusC. lobatulus#Strong, C PercyCounting, foraminifera, benthic
22 Cibicides cf. temporatusC. cf. temporatus#Strong, C PercyCounting, foraminifera, benthic
23 Cibicides spp.Cibicides spp.#Strong, C PercyCounting, foraminifera, benthic
24 Cyclammina incisaC. incisa#Strong, C PercyCounting, foraminifera, benthic
25 Dentalina sp.Dentalina sp.#Strong, C PercyCounting, foraminifera, benthic
26 Discorbis sp.Discorbis sp.#Strong, C PercyCounting, foraminifera, benthic
27 Epistominella exiguaE. exigua#Strong, C PercyCounting, foraminifera, benthic
28 Eponides bradyiE. bradyi#Strong, C PercyCounting, foraminifera, benthic
29 Fissurina fimbriataF. fimbriata#Strong, C PercyCounting, foraminifera, benthic
30 Fissurina marginataF. marginata#Strong, C PercyCounting, foraminifera, benthic
31 Fissurina spp.Fissurina spp.#Strong, C PercyCounting, foraminifera, benthic
32 Gavelinella spp.Gavelinella spp.#Strong, C PercyCounting, foraminifera, benthic
33 Globigerina sp.Globigerina sp.#Strong, C PercyCounting, foraminifera, benthicindeterminate
34 Globocassidulina crassaG. crassa#Strong, C PercyCounting, foraminifera, benthic
35 Globocassidulina subglobosaG. subglobosa#Strong, C PercyCounting, foraminifera, benthic
36 Gyroidina orbicularisG. orbicularis#Strong, C PercyCounting, foraminifera, benthic
37 Haplophragmoides spp.Haplophragmoides spp.#Strong, C PercyCounting, foraminifera, benthic
38 Hanzawaia sp.Hanzawaia sp.#Strong, C PercyCounting, foraminifera, benthic
39 Karrerculina sp.Karrerculina sp.#Strong, C PercyCounting, foraminifera, benthic
40 Lenticulina spp.Lenticulina spp.#Strong, C PercyCounting, foraminifera, benthic
41 Melonis barleeanusM. barleeanus#Strong, C PercyCounting, foraminifera, benthic
42 Melonis graniferumM. graniferum#Strong, C PercyCounting, foraminifera, benthic
43 Melonis spp.Melonis spp.#Strong, C PercyCounting, foraminifera, benthic
44 MiliolidaeMiliolidaeStrong, C PercyCounting, foraminifera, benthicMiliolidiae (in situ record)
45 MiliolidaeMiliolidae#Strong, C PercyCounting, foraminifera, benthiclarge
46 Nodosaria spp.Nodosaria spp.#Strong, C PercyCounting, foraminifera, benthic
47 Nonionella bradiiN. bradii#Strong, C PercyCounting, foraminifera, benthic
48 Nonionella irideaN. iridea#Strong, C PercyCounting, foraminifera, benthic
49 Nonionella magnalinguaN. magnalingua#Strong, C PercyCounting, foraminifera, benthic
50 Nonionella spp.Nonionella spp.#Strong, C PercyCounting, foraminifera, benthic
51 Oolina apiculataO. apiculata#Strong, C PercyCounting, foraminifera, benthic
52 Oolina apiopleuraO. apiopleura#Strong, C PercyCounting, foraminifera, benthic
53 Oolina globosaO. globosa#Strong, C PercyCounting, foraminifera, benthic
54 Parafissurina lateralisP. lateralis#Strong, C PercyCounting, foraminifera, benthic
55 Planularia sp.Planularia sp.#Strong, C PercyCounting, foraminifera, benthic
56 Pullenia subcarinataP. subcarinata#Strong, C PercyCounting, foraminifera, benthic
57 Quinqueloculina spp.Quinqueloculina spp.#Strong, C PercyCounting, foraminifera, benthic
58 Reophax sp.Reophax sp.#Strong, C PercyCounting, foraminifera, benthic
59 Stainforthia sp.Stainforthia sp.#Strong, C PercyCounting, foraminifera, benthic
60 Textularia sp.Textularia sp.#Strong, C PercyCounting, foraminifera, benthic
61 Echinodermata fragmentsEchinod fragmStrong, C Percyspines/plates
62 Fecal pelletsFecal pelStrong, C Percy
63 ForaminiferaForamStrong, C Percyindeterminate
64 ForaminiferaForamStrong, C Percyrecycled
65 MolluscaMolluscaStrong, C Percyfragments
66 OstracodaOstracStrong, C Percy
67 Siliceous spiculesSilic spicStrong, C Percy
68 Foraminifera, benthicForam benth#/gStrong, C PercyCounting >125 µm fraction
69 Diatom abundanceDiatom abundStrong, C Percy
Size:
4879 data points

Data

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


Depth sed [m]

Depth top [m]

Depth bot [m]

Unit

Spec No [#]
(Counting, foraminifera, benthic)

Sp count [#]
(Counting, foraminifera, benthic)

Foram benth preserv

Anomalina spp. [#]
(Counting, foraminifera, benthic)

A. cf. eoglabra [#]
(Counting, foraminifera, benthic)
10 
A. fasciatus [#]
(Counting, foraminifera, benthic)
11 
A. globulosus [#]
(Counting, foraminifera, benthic)
12 
A. miosuturalis [#]
(Counting, foraminifera, benthic)
13 
Anomalinoides spp. [#]
(Counting, foraminifera, benthic)
14 
Astacolus spp. [#]
(Counting, foraminifera, benthic)
15 
B. cf. brevior [#]
(Counting, foraminifera, benthic)
16 
Bulimina sp. [#]
(Counting, foraminifera, benthic)
17 
C. bradyi [#]
(Counting, foraminifera, benthic)
18 
C. braziliensis [#]
(Counting, foraminifera, benthic)
19 
C. chapmani [#]
(Counting, foraminifera, benthic)
20 
Cribroelphidium sp. [#]
(Counting, foraminifera, benthic)
21 
C. lobatulus [#]
(Counting, foraminifera, benthic)
22 
C. cf. temporatus [#]
(Counting, foraminifera, benthic)
23 
Cibicides spp. [#]
(Counting, foraminifera, benthic)
24 
C. incisa [#]
(Counting, foraminifera, benthic)
25 
Dentalina sp. [#]
(Counting, foraminifera, benthic)
26 
Discorbis sp. [#]
(Counting, foraminifera, benthic)
27 
E. exigua [#]
(Counting, foraminifera, benthic)
28 
E. bradyi [#]
(Counting, foraminifera, benthic)
29 
F. fimbriata [#]
(Counting, foraminifera, benthic)
30 
F. marginata [#]
(Counting, foraminifera, benthic)
31 
Fissurina spp. [#]
(Counting, foraminifera, benthic)
32 
Gavelinella spp. [#]
(Counting, foraminifera, benthic)
33 
Globigerina sp. [#]
(indeterminate, Counting, fora...)
34 
G. crassa [#]
(Counting, foraminifera, benthic)
35 
G. subglobosa [#]
(Counting, foraminifera, benthic)
36 
G. orbicularis [#]
(Counting, foraminifera, benthic)
37 
Haplophragmoides spp. [#]
(Counting, foraminifera, benthic)
38 
Hanzawaia sp. [#]
(Counting, foraminifera, benthic)
39 
Karrerculina sp. [#]
(Counting, foraminifera, benthic)
40 
Lenticulina spp. [#]
(Counting, foraminifera, benthic)
41 
M. barleeanus [#]
(Counting, foraminifera, benthic)
42 
M. graniferum [#]
(Counting, foraminifera, benthic)
43 
Melonis spp. [#]
(Counting, foraminifera, benthic)
44 
Miliolidae
(Miliolidiae (in situ record),...)
45 
Miliolidae [#]
(large, Counting, foraminifera...)
46 
Nodosaria spp. [#]
(Counting, foraminifera, benthic)
47 
N. bradii [#]
(Counting, foraminifera, benthic)
48 
N. iridea [#]
(Counting, foraminifera, benthic)
49 
N. magnalingua [#]
(Counting, foraminifera, benthic)
50 
Nonionella spp. [#]
(Counting, foraminifera, benthic)
51 
O. apiculata [#]
(Counting, foraminifera, benthic)
52 
O. apiopleura [#]
(Counting, foraminifera, benthic)
53 
O. globosa [#]
(Counting, foraminifera, benthic)
54 
P. lateralis [#]
(Counting, foraminifera, benthic)
55 
Planularia sp. [#]
(Counting, foraminifera, benthic)
56 
P. subcarinata [#]
(Counting, foraminifera, benthic)
57 
Quinqueloculina spp. [#]
(Counting, foraminifera, benthic)
58 
Reophax sp. [#]
(Counting, foraminifera, benthic)
59 
Stainforthia sp. [#]
(Counting, foraminifera, benthic)
60 
Textularia sp. [#]
(Counting, foraminifera, benthic)
61 
Echinod fragm
(spines/plates)
62 
Fecal pel
63 
Foram
(indeterminate)
64 
Foram
(recycled)
65 
Mollusca
(fragments)
66 
Ostrac
67 
Silic spic
68 
Foram benth [#/g]
(Counting >125 µm fraction)
69 
Diatom abund
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