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Huber, Brian T (1991): Distribution of Cretaceous and early Danian planktonic foraminifera in ODP Hole 119-738C (Table 1) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.728441, Supplement to: Huber, BT (1991): Maestrichtian planktonic foraminifer biostratigraphy and the Cretaceous/Tertiary boundary at Hole 738C, Kerguelen Plateau (Southern Indian Ocean). In: Barron, J; Larsen, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 119, 451-465, https://doi.org/10.2973/odp.proc.sr.119.143.1991

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Abstract:
A biostratigraphically complete upper Maestrichtian-Danian sequence was recovered at ODP Leg 119 Site 738 on the southern Kerguelen Plateau (62°S). Planktonic foraminifers are abundant and well to moderately preserved in all upper Maestrichtian samples to within 6 cm of the Cretaceous/Tertiary boundary, where foraminifers are rare and poorly preserved due to increased sediment lithification. Lowermost Danian samples are also poorly preserved, but specimen abundance is sufficient for preliminary quantitative biostratigraphic analysis. Despite the poor foraminifer preservation, evidence is presented for paleoenvironmental change immediately below a thin, iridium-rich calcareous clay horizon that is recognized as the Cretaceous/Tertiary boundary. The most significant indicators for preboundary change include; (1) loss of sediment bioturbation; (2) loss of keeled planktonic foraminifers; and (3) diminished size and diversity of benthic foraminifers. Planktonic foraminifers showing transitional morphologies between Cretaceous and Tertiary planktonic biserial heterohelicids first appear 4 cm below the boundary clay. Although some Cretaceous planktonic foraminifers consistently occur with early Danian marker species in initially high abundance above the boundary clay, they are not considered as survival species, but are considered as reworked because of their co-occurrence with Campanian and Maestrichtian species whose extinctions took place well before the end of the Maestrichtian.
The recovered Maestrichtian planktonic foraminifers are identical to Austral Realm assemblages found in the southern South Atlantic region. All five species previously recognized as being endemic to this realm were recovered from Hole 738C. Lower Danian assemblages strongly resemble coeval low-latitude foraminifer faunas, whereas upper Danian assemblages differ only in the absence of indicator species, particularly the morozovellids. The stratigraphy of this sequence is correlated using existing zonal schemes for the southern high-latitudes, with modification of one Antarctic Paleogene zone and subzone. Only broad subdivisions of tropical zonal schemes were recognized, as most of the nominate taxa are absent from the southern high-latitudes.
Project(s):
Coverage:
Latitude: -62.709000 * Longitude: 82.787800
Date/Time Start: 1988-01-11T18:45:00 * Date/Time End: 1988-01-17T05:00:00
Minimum DEPTH, sediment/rock: 376.00 m * Maximum DEPTH, sediment/rock: 413.43 m
Event(s):
119-738C * Latitude: -62.709000 * Longitude: 82.787800 * Date/Time Start: 1988-01-11T18:45:00 * Date/Time End: 1988-01-17T05:00:00 * Elevation: -2263.0 m * Penetration: 533.8 m * Recovery: 146.03 m * Location: Indian Ocean * Campaign: Leg119 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 35 cores; 337.2 m cored; 0 m drilled; 43.3 % recovery
Comment:
<1 present specimens found after the first 100 counts, ?1 = species questionable presented
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1DEPTH, sediment/rockDepth sedmGeocode
2Sample code/labelSample labelHuber, Brian TDSDP/ODP/IODP sample designation
3EpochEpochHuber, Brian T
4Planktic foraminifera zonePlank foram zoneHuber, Brian T
5Foraminifera, planktic abundanceForam planktHuber, Brian TA = abundant, C = common, F = few, R = rare
6Foraminifera, planktic preservationForam plankt preservHuber, Brian TG = good, M = moderate, P = poor
7Archaeoglobigerina australisA. australis#Huber, Brian TCounting >63 µm fraction
8Globigerinelloides multispinusG. multispinus#Huber, Brian TCounting >63 µm fraction
9Hedbergella monmouthensisH. monmouthensis#Huber, Brian TCounting >63 µm fraction
10Heterohelix globulosaH. globulosa#Huber, Brian TCounting >63 µm fraction
11Heterohelix planataH. planata#Huber, Brian TCounting >63 µm fraction
12Hedbergella sliteriH. sliteri#Huber, Brian TCounting >63 µm fraction
13Abathomphalus mayaroensisA. mayaroensis#Huber, Brian TCounting >63 µm fraction
14Archaeoglobigerina mateolaA. mateola#Huber, Brian TCounting >63 µm fraction
15Globotruncanella sp.Globotruncanella sp.#Huber, Brian TCounting >63 µm fractionquestionable
16Heterohelix dentataH. dentata#Huber, Brian TCounting >63 µm fraction
17Rugotruncana circumnodiferR. circumnodifer#Huber, Brian TCounting >63 µm fraction
18Rugoglobigerina rugosaR. rugosa#Huber, Brian TCounting >63 µm fraction
19Globigerinelloides subcarinatusG. subcarinatus#Huber, Brian TCounting >63 µm fraction
20Globigerinelloides impensusG. impensus#Huber, Brian TCounting >63 µm fraction
21Abathomphalus intermediusA. intermedius#Huber, Brian TCounting >63 µm fraction
22Globotruncanella citaeG. citae#Huber, Brian TCounting >63 µm fraction
23Globotruncanella petaloideaG. petaloidea#Huber, Brian TCounting >63 µm fraction
24Gublerina robustaG. robusta#Huber, Brian TCounting >63 µm fraction
25Guembelitria cretaceaG. cretacea#Huber, Brian TCounting >63 µm fraction
26Hedbergella sp.Hedbergella sp.#Huber, Brian TCounting >63 µm fraction
27Pseudotextularia elegansP. elegans#Huber, Brian TCounting >63 µm fraction
28Schackoina multispinataS. multispinata#Huber, Brian TCounting >63 µm fraction
29Zeauvigerina teuriaZ. teuria#Huber, Brian TCounting >63 µm fraction
30Chiloguembelina sp.Chiloguembelina sp.#Huber, Brian TCounting >63 µm fraction
31Chiloguembelina crinitaC. crinita#Huber, Brian TCounting >63 µm fraction
32Eoglobigerina fringaE. fringa#Huber, Brian TCounting >63 µm fraction
33Eoglobigerina eobulloidesE. eobulloides#Huber, Brian TCounting >63 µm fraction
34Eoglobigerina sp.Eoglobigerina sp.#Huber, Brian TCounting >63 µm fractionquestionable
35Bifarina alabamensisB. alabamensis#Huber, Brian TCounting >63 µm fraction
36Chiloguembelina waiparaensisC. waiparaensis#Huber, Brian TCounting >63 µm fraction
37Eoglobigerina simplicissimaE. simplicissima#Huber, Brian TCounting >63 µm fraction
38Globoconusa daubjergensisG. daubjergensis#Huber, Brian TCounting >63 µm fraction
39Subbotina pseudobulloidesS. pseudobulloides#Huber, Brian TCounting >63 µm fraction
40Foraminifera, benthicForam benth#Huber, Brian TCounting >63 µm fraction
41CalcispheresCalcispheresHuber, Brian TA = abundant, C = common, F = few, R = rare
Size:
1789 data points

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