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  • PANGAEA  (58)
Publikationsart
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  • 1
    Publikationsdatum: 2023-06-27
    Schlagwort(e): 12-112; Ageprofile Datum Description; Deep Sea Drilling Project; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Glomar Challenger; Leg12; North Atlantic; Sample code/label; Sample code/label 2
    Materialart: Dataset
    Format: text/tab-separated-values, 37 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Publikationsdatum: 2023-07-10
    Beschreibung: We present a Cretaceous benthic foraminiferal record of IODP Site U1512. Site U1512 was drilled in the Great Australian Bight during IODP Expedition 369, Australia Cretaceous and Tectonics (26 September–26 November 2017). This dataset records Upper Cretaceous benthic foraminifera (Turonian - Santonian) consisting of 162 taxa (110 agglutinated and 52 calcareous).
    Schlagwort(e): 369-U1512A; Agglutinated foraminifera; Ammobaculites australis; Ammobaculites carpathicus; Ammobaculites grossus; Ammobaculites phaulus; Ammobaculites sp.; Ammobaculites wallalensis; Ammobacultes fragmentarius; Ammobacultes humei; Ammodiscus cretaceus; Ammodiscus glabratus; Ammodiscus peruvianus; Ammodiscus rotalarius; Ammodiscus serpens; Ammodiscus siliceus; Ammodiscus sp.; Ammomarginulina cragini; Ammosphaeroidina pseudopauciloculata; Arthodendron carpatica; Aschemocella cf. carpathica; Astacolus rectus; Astacolus sp.; Australia Cretaceous; Bathysiphon robustus; Bathysiphon sp.; Budashevaella sp.; Bulbobaculites problematicus; Bulbobaculites sp.; Buzasina antarctica; Caudammina ovula; Caudammina sp.; Cibicides sp.; Cibicidoides eriksdalensis; Cibicidoides sp.; Citharina sp.; Colomia cretacea; Conglophragmium irregularis; Counting, foraminifera, benthic; Cribrostomoides sp.; Cribrostomoides subglobosum; Cystammina sp.; Dentalina sp.; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Ellipsoglandulina sp.; Ellipsoidella gracillima; Eobigenerina cf. variabilis; Eobigenerina kuhnti; Epistomina caracolla; Eponides sp.; Exp369; Foraminifera, benthic, total; Frondicularia sp.; Gaudryinopsis sp.; Gaurdyina gradata; Gavelinella eriksdalensis; Gavelinella sp.; Gerochammina lenis; Gerochammina obesa; Gerochammina sp.; Gerochammina stanislawi; Glomospira charoides; Glomospira gordialis; Glomospirella gaultina; Great Australian Bight; Gyroidinoides diversus; Gyroidinoides globosus; Gyroidinoides quadratus; Haplophragmium sp.; Haplophragmium spp.; Haplophragmoides; Haplophragmoides involutus; Haplophragmoides sp.; Haplophragmoides spp.; Hormosinella sp.; Hyperammina dilatata; Hyperammina elongata; Hyperammina gaultina; Integrated Ocean Drilling Program / International Ocean Discovery Program; IODP; Joides Resolution; Kalamopsis grzybowskii; Labrospira nonioninoides; Labrospira sp.; Laevidentalina sp.; Lenticulina sp.; Lituotuba lituiformis; Marginulina sp.; Marginulinopsis multicostata; Nothia excesis; Notoplanulina australis; Notoplanulina rakauroana; Notoplanulina sp.; Nuttallinella primitiva; Oolina sp.; Oridorsalis sp.; Osangularia sp.; Paratrochamminoides; Patellina subcretacea; Placentammina placenta; Pleurostomella obtusa; Pleurostomella sp.; Praebulimina ovula; Praebulimina sp.; Protomarssonella praeoxycona; Protosangularia sp.; Psammosiphonella cylindrica; Psammosphaera fusca; Pseudobolivina munda; Pseudobolivina sp.; Pseudonodosinella elongata; Pseudosigmoilina cf. antiqua; Pyramidulina sp.; Quadrimorphina allomorphinoides; Ramulina cf. wrightii; Recurvoides cf. deflexiformis; Recurvoides sp.; Reophax deckeri; Reophax globosus; Reophax minutus; Reophax parvulus; Reophax sp.; Rhizammina sp.; Rzehakina epigona; Saccammina sp.; Sample code/label; Saracenaria sp.; Spiroplectammina complanata; Spiroplectammina edgelli; Spiroplectammina navarroana; Spiroplectammina spectabilis; Subreophax pseudoscalaris; Subreophax scalaris; Subreophax spp.; Technitella spiculiformis; Textularia cushmani; Textularia sp.; Textulariopsis sp.; Thurammina papillata; Tritaxia capitosa; Trochammina globigeriniformis; Trochammina raggatti; Trochammina sp.; Trochamminoides proteus; Trochamminoides sp.; U1512; Upper Cretaceous Benthic Foraminifera; Uvigerinammina jankoi; Vaginulinopsis sp.; Verneuilinoides cf. neocomiensis
    Materialart: Dataset
    Format: text/tab-separated-values, 1668 data points
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  • 3
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Kaminski, Michael Anthony; Gradstein, Felix M; Scott, David B; Mackinnon, K D (1989): Neogene benthic foraminifer biostratigraphy and deep-water history of sites 645,646, and 647, Baffin Bay and Labrador Sea. In: Srivastava, SP; Arthur, M; Clement, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 105, 731-756, https://doi.org/10.2973/odp.proc.sr.105.123.1989
    Publikationsdatum: 2024-01-09
    Beschreibung: Benthic foraminifers were examined from Neogene sediments of Ocean Drilling Program (ODP) Sites 645, 646, and 647 to determine their biostratigraphy and to place constraints on the paleoceanographic history of Baffin Bay, Eirik Ridge, and the Gloria Drift. At Site 645 in Baffin Bay, a Pleistocene Stetsonia assemblage is similar to the modern Baffin Bay assemblage, but an underlying Epistominella takayanagii assemblage has no modern analog. Miocene assemblages below a barren interval display low diversity and consist mainly of agglutinated species. At Site 646 in the Labrador Sea, benthic faunal turnovers occur near important seismic horizons. A Miocene Nuttallides umbonifera assemblage similar to assemblages at other North Atlantic sites occurs below reflector R3. Above reflector R3, a coarse agglutinated assemblage containing more diversified calcareous benthic foraminifers was found that displays affinity to assemblages in the Norwegian-Greenland Sea. The faunal turnover near reflector R3 was interpreted as reflecting the onset (or renewal) of significant Denmark Straits Overflow Water at Site 646 at ~7.5 Ma, Agglutinated species disappear between reflector R2 and the base of the sediment drift, indicating a change in deep-water properties that occurred at ~ 4.7 Ma. This turnover ultimately may be linked to the reopening of the Mediterranean. The beginning of drift sedimentation at the Eirik Ridge is dated at --4.5 Ma. Drift formation ceased at ~2.5 Ma, concomitant with the appearance of ice-rafted sediments. Pleistocene assemblages containing Stetsonia horvathi display affinity to deep assemblages in high-latitude ocean basins. Upper Pliocene and Pleistocene benthic assemblages at Site 647 contain N. umbonifera, which indicates a continued influence of corrosive deep water at the Gloria Drift.
    Schlagwort(e): 105-645B; 105-646A; 105-646B; 105-647B; Baffin Bay; DRILL; Drilling/drill rig; Joides Resolution; Labrador Sea; Leg105; Ocean Drilling Program; ODP; South Atlantic Ocean
    Materialart: Dataset
    Format: application/zip, 5 datasets
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  • 4
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Baldauf, Jack G; Clement, Bradford M; Aksu, Ali E; de Vernal, Anne; Firth, John V; Hall, Frank R; Head, Martin J; Jarrard, Richard D; Kaminski, Michael Anthony; Lazarus, David B; Monjanel, Anne-Lise; Berggren, William A; Gradstein, Felix M; Knüttel, Stephen; Mudie, Peta J; Russell, Merlin D Jr (1989): Magnetostratigraphic and biostratigraphic synthesis of Ocean Drilling Program Leg 105: Labrador Sea and Baffin Bay. In: Srivastava, SP; Arthur, M; Clement, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 105, 935-956, https://doi.org/10.2973/odp.proc.sr.105.165.1989
    Publikationsdatum: 2024-01-09
    Beschreibung: During Ocean Drilling Program (ODP) Leg 105, three sites (Sites 645 through 647) were drilled in Baffin Bay and the Labrador Sea to examine the tectonic evolution and the climatic and oceanic histories of this region. Biostratigraphic and magnetostratigraphic results vary at each site, while stratigraphic resolution depends on the limited abundance of marker species and the completeness of the paleomagnetic record. Because of the paucity of planktonic microfossils and the poor paleomagnetic record signatures, stratigraphic determinations at Site 645 often rely on defining minimum temporal constraints on specific samples or stratigraphic intervals. The completed stratigraphy indicates that the sedimentary sequence recovered at Site 645 is early Miocene to Holocene in age. The magnetostratigraphy and biostratigraphies are better defined at Sites 646 and 647 in the Labrador Sea. Site 646 generally contains a well-developed magnetostratigraphy and calcareous microfossil biostratigraphy. This biostratigraphy is based on calcareous nannofossils and planktonic foraminifers typical of the North Atlantic Ocean. Siliceous microfossils are also present at Site 646, but they are restricted to upper Pliocene through Holocene sediments. The stratigraphic sequence recovered at Site 646 is late Miocene to Holocene in age. Based primarily on the calcareous nannofossil stratigraphy, the sequence recovered at Site 647 consists of lower Eocene to lower Oligocene, lower Miocene, upper Miocene, and upper Pliocene through Holocene sediments. Three hiatuses are present in this sequence: the older hiatus separates lower Oligocene sediments from lower Miocene sediments, another hiatus separates lower Miocene sediments from upper Miocene sediments, and the youngest one separates upper Miocene from upper Pliocene sediments. A magnetostratigraphy is defined for the interval from the Gauss/Matuyama boundary through the Brunhes (Clement et al., this volume). Both planktonic foraminifers and siliceous microfossils have restricted occurrences. Planktonic foraminifers occur in Pliocene and younger sediments, and siliceous microfossils are present in lower Miocene and lower Oligocene sediments. The near-continuous Eocene through lower Oligocene sequence recovered at Site 647 allows the calcareous nannofossils and diatom stratigraphies at this site to act as a Paleogene stratigraphic framework. This framework can be compared with the stratigraphy previously completed for DSDP Site 112.
    Schlagwort(e): 105-646; 105-647; 12-112; COMPCORE; Composite Core; Deep Sea Drilling Project; DRILL; Drilling/drill rig; DSDP; Glomar Challenger; Joides Resolution; Labrador Sea; Leg105; Leg12; North Atlantic; Ocean Drilling Program; ODP; South Atlantic Ocean
    Materialart: Dataset
    Format: application/zip, 3 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 5
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Kaminski, Michael Anthony; Gradstein, Felix M; Geroch, Stanislaw (1992): Uppermost Jurassic to lower Cretaceous deep-water benthic foraminiferal assemblages from Site 765 on the Argo Abyssal Plain. In: Gradstein, FM; Ludden, JN; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 123, 239-269, https://doi.org/10.2973/odp.proc.sr.123.126.1992
    Publikationsdatum: 2024-01-09
    Beschreibung: Benthic foraminifers were studied in 99 samples collected from the lower 200 m of Hole 765C. The studied section ranges from the Tithonian to Aptian, and benthic foraminifers can be subdivided into five assemblages on the basis of faunal diversity and stratigraphic ranges of distinctive species. Compared with deep-water assemblages from Atlantic DSDP sites and Poland, assemblages from the Argo Abyssal Plain display a higher diversity of agglutinated forms, which comprise the autochthonous assemblages. Assemblages at the base of Hole 765C are wholly composed of agglutinated forms, reflecting deposition beneath the carbonate compensation depth (CCD). Most calcareous benthic species are found in turbidite layers, and the presence of an upper Valanginian Praedorothia praehauteriviana Assemblage may indicate deposition at or just below the CCD. The P. praehauteriviana Assemblage from Hole 765C is the temporal equivalent of similar assemblages from DSDP Holes 534A, 416A, 370, 105, and 101 in the Atlantic Ocean and Hole 306 in the Pacific Ocean. Stratigraphic ranges of cosmopolitan agglutinated species at Site 765 generally overlap with their reported ranges in the Atlantic and in the bathyal flysch sequences of the Carpathians; however, several species from Hole 765C have not been previously reported from Uppermost Jurassic to Lower Cretaceous abyssal sediments.
    Schlagwort(e): 123-765C; DRILL; Drilling/drill rig; Joides Resolution; Leg123; Ocean Drilling Program; ODP; South Indian Ridge, South Indian Ocean
    Materialart: Dataset
    Format: application/zip, 2 datasets
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  • 6
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Kaminski, Michael Anthony; Huang, Zehui (1991): Biostratigraphy of Eocene to Oligocene deep-water agglutinated foraminifers in the red clays from Site 767, Celebes Sea. In: Silver, EA; Rangin, C; von Breymann, MT; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 124, 171-180, https://doi.org/10.2973/odp.proc.sr.124.131.1991
    Publikationsdatum: 2024-01-09
    Beschreibung: Deep-water agglutinated foraminifers were examined from reddish brown claystones comprising lithologic Unit 4 of Ocean Drilling Program Holes 767B and 767C. The biostratigraphy of deep-water agglutinated foraminifers in this unit indicates an Eocene to Oligocene age. The assemblages are cosmopolitan, not endemic, and several species that are useful biostratigraphic indicators in the Atlantic and western Mediterranean region (e.g., Reticulophragmium amplectens, Reophax elongatus, Ammodiscus latus, Rzehakina epigona minima, Hormosina ovulum ovulum, and Paratrochamminoides spp.) are present in the Celebes Sea. Based on biostratigraphic correlations with the North Atlantic and Alpine-Carpathian regions, the base of the sedimentary section in Hole 767C is determined to be of early Eocene, not middle Eocene age as determined by shipboard biostratigraphic analyses. The Eocene/Oligocene boundary is represented by a hiatus or extremely condensed interval.
    Schlagwort(e): 124-767B; 124-767C; DRILL; Drilling/drill rig; Joides Resolution; Leg124; Mindanao Sea; Ocean Drilling Program; ODP
    Materialart: Dataset
    Format: application/zip, 2 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 7
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Shyu, Jih-Ping; Merrill, Dean L; Hsu, Vindell; Kaminski, Michael Anthony; Müller, Carla; Nederbragt, Alexandra J; Scherer, Reed P; Shibuya, Hidetoshi (1991): Biostratigraphic and magnetostratigraphic synthesis of the Celebes and Sulu Seas, Leg 124. In: Silver, EA; Rangin, C; von Breymann, MT; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 124, 1-9, https://doi.org/10.2973/odp.proc.sr.124.171.1991
    Publikationsdatum: 2024-01-09
    Beschreibung: During ODP Leg 124, late middle Eocene to Quaternary sediment sequences were recovered from 13 holes drilled at five sites in the Celebes and Sulu basins. Paleomagnetic measurements and biostratigraphic studies using calcareous nannofossils, planktonic and benthic foraminifers, radiolarians, and diatoms were completed and summarized here. Two Neogene sediment sections recovered in the Sulu Basin yielded excellent core recoveries and magnetic reversal records, allowing direct magnetobiostratigraphic correlations for the Pliocene and Quaternary at Site 768 and for the middle Miocene to Quaternary at Site 769. The interpolated ages of biohorizons are not consistent between sites and only a few of them are in good agreement with previous calibrations. The differences may be the results of redeposition by turbidity currents and selective dissolution of key fossils.
    Schlagwort(e): 124-767; 124-768B; 124-768C; 124-769; 124-769A; 124-769B; 124-770; 124-771; COMPCORE; Composite Core; DRILL; Drilling/drill rig; Joides Resolution; Leg124; Mindanao Sea; Ocean Drilling Program; ODP; Sulu Sea
    Materialart: Dataset
    Format: application/zip, 5 datasets
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 8
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Kuhnt, Wolfgang; Kaminski, Michael Anthony; Moullade, Michel (1989): Late Cretaceous deep-water agglutinated foraminiferal assemblages from the North Atlantic and its marginal seas. Geologische Rundschau, 78(3), 1121-1140, https://doi.org/10.1007/BF01829336
    Publikationsdatum: 2024-01-09
    Beschreibung: The stratigraphic and biogeographic distribution of more than 170 species of deep-water agglutinated benthic foraminifers (DWAF) from the North Atlantic and adjacent marginal seas has been compared with paleoenvironmental data (e.g. paleobathymetry, oxygenation of the bottom waters, amount of terrigenous input and substrate disturbance). Six general types of assemblages, in which deep water agglutinated taxa occur, are defined from the Turonian to Maastrichtian times: 1. High latitude slope assemblages 2. Low to mid latitude slope assemblages 3. Flysch-type assemblages 4. Deep water limestone assemblages (,,Scaglia,,-type) 5. Abyssal mixed calcareous-agglutinated assemblages 6. Abyssal purely agglutinated assemblages Latitudinal differences in faunal composition are observed, the most important of which is the lack or extreme paucity of calcareous forms in high latitude assemblages. East-to-west differences appear to be of comparatively minor importance. Most DWAF species occur in all studied regions and are thus considered as cosmopolitan. Biostratigraphic turnovers in the taxonomic content of assemblages are observed in the lowermost Turonian, mid-Campanian and in the upper Maastrichtian to lowermost Paleocene. These datum levels correspond to inter-regional and time-constant paleooceanographic events, which probably also affected the deep-water benthic biota. This allows us to use deep-water agglutinated foraminifers for biostratigraphy in the North Atlantic sequences deposited below CCD and to geographically extend the currently used zonal schemes which have been established in the Carpathian and Alpine areas.
    Schlagwort(e): 103-641A; 14-137; 14-141; 41-367; 41-368; 78-543A; 93-603B; Ammobaculites agglutinans; Ammobaculites aubertae; Ammobaculites jarvisi; Ammobaculites sp.; Ammodiscus asperellus; Ammodiscus cf. pennyi; Ammodiscus cretaceus; Ammodiscus glabratus; Ammodiscus infimus; Ammodiscus pennyi; Ammodiscus peruvianus; Ammodiscus planus; Ammodiscus sp.; Ammolagena clavata; Ammosphaeroidina pseudopauciloculata; Arenobulimina dorbignyi; Aschemonella carpathica; Aschemonella ex. gr. A. grandis; Bathysiphon spp.; Bolivinopsis parvissimus; Budashevaella trinitatensis; Clavulinoides aspera; Clavulinoides eggeri; Clavulinoides subparisiensis; Cork Harbour; Cribrostomoides sp.; Cribrostomoides trinitatensis; Deep Sea Drilling Project; Dendrophyra ex. gr. D. exceisa; Dendrophyra latissima; Depth, bottom/max; DEPTH, sediment/rock; Depth, top/min; Dorothia crassa trochoides; Dorothia oxycona; Dorothia retusa; Dorothia sp.; DRILL; Drilling/drill rig; DSDP; Epoch; Event label; Gaudryina ex. gr. G. cretacea; Gaudryina pyramidata; Gaudryina sp.; GIB; Gibralta_arch; Glomar Challenger; Glomospira charoides; Glomospira diffundens; Glomospira gordialis; Glomospira irregularis; Glomospira serpens; Glomospirella gaultina; Glomospirella grzybowskii; Goesella rugosa; Guadiana Estuary; GUB; Gubbio; Haplophragmium problematicus; Haplophragmoides bulloides; Haplophragmoides cf. concavus; Haplophragmoides cf. glabra; Haplophragmoides cf. kirki; Haplophragmoides cf. walteri; Haplophragmoides eggeri; Haplophragmoides ex. gr. H. suborbicularis; Haplophragmoides fraudulentus; Haplophragmoides horridus; Haplophragmoides kirki; Haplophragmoides menitens; Haplophragmoides multicamerus; Haplophragmoides multiformis; Haplophragmoides perexplicatus; Haplophragmoides pseudokirki; Haplophragmoides retroseptus; Haplophragmoides sp.; Hormosina crassa; Hormosina excelsa; Hormosina gigantea; Hormosina ovuloides; Hormosina ovulum; Hormosina trinitatensis; Hormosina velascoensis; Hormosinella distans; Hormosinella sp.; Hyperammina dilatata; Hyperammina elongata; Hyperammina subdiscreta; Indian_Habour; Italy; Joides Resolution; Kalamopsis dubia; Kalamopsis grzybowskii; Karreriella conversa; Karreriella horrida; LAB; Labrador; Labrospira inflata; Labrospira pacifica; Labrospira sp.; Lagenammina sp.; Latitude of event; Leg103; Leg14; Leg41; Leg78; Leg78AB; Leg93; Lituotuba lituiformis; Longitude of event; Matanzia varians; MES; Mesoriff_zone; Moroccan margin; North Atlantic/BASIN; North Atlantic/CONT RISE; North Atlantic/DIAPIR; North Atlantic/HILL; Ocean Drilling Program; ODP; Paratrochamminoides acervulatus; Paratrochamminoides heteromorphus; Paratrochamminoides intricatus; Paratrochamminoides irregularis; Paratrochamminoides semipellucidus; Paratrochamminoides sp.; Paratrochamminoides spp.; PEN; Penibetic_zone; Pertuis Charentais; Phenacophragma elegans; Plectorecurvoides parvus; Plectorecurvoides rotundus; Praecystammina cf. globigeriniformis; Praecystammina globigerinaeformis; Psammosphaera fusca; Psammosphaera scruposa; Pseudobolivina cuneata; Pseudobolivina lagenaria; Pseudobolivina munda; Pseudobolivina sp.; Pseudobolivina spp.; Recurvoides anormis; Recurvoides cf. subturbinatus; Recurvoides deflexiformis; Recurvoides gerochi; Recurvoides spp.; Recurvoides walteri; Reophax aff. dentaliniformis; Reophax cf. subnodulosus; Reophax duplex; Reophax globosus; Reophax pilulifer; Reophax sp.; Reophax subfusiformis; Rhabdammina spp.; Rhizammina cf. algaeformis; Rhizammina grzybowskii; Rhizammina indivisa; Rzehakina epigona; Rzehakina fissistomata; Rzehakina inclusa; Rzehakina minima; Saccammina cf. placenta; Saccammina grzybowskii; Saccammina placenta; Saccammina sphaerica; Saccorhiza ramosa; Sample comment; Scheldt Delta Estuary; Silicosigmoilina perplexa; South Atlantic Ocean; Spain; Sphaerammina gerochi; Spiroplectammina aff. dentata; Spiroplectammina aff. spectabilis; Spiroplectammina cf. israelskyi; Spiroplectammina israelskyi; Spiroplectammina laevis; Spiroplectammina navarroana; Spiroplectammina sp.; Spiroplectammina subhaeringensis; Subreophax guttifer; Subreophax pseudoscalaris; Subreophax scalaris; Subreophax sp.; Subreophax splendidus; Thurammina sp.; Tolypammina sp.; TRIN; Trinidad; Trochammina altiformis; Trochammina bulloidiformis; Trochammina deformis; Trochammina ex gr. T. globigeriniformis; Trochammina gyroidinaeformis; Trochammina sp.; Trochammina spp.; Trochamminoides cf. dubius; Trochamminoides cf. proteus; Trochamminoides dubius; Trochamminoides proteus; Trochamminoides subcoronatus; Turritellella shoneana; Uvigerinammina jankoi; Verneuilina cretacea; Verneuilinoides polystrophus; ZUM; Zumaya_section
    Materialart: Dataset
    Format: text/tab-separated-values, 878 data points
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  • 9
    facet.materialart.
    Unbekannt
    PANGAEA
    In:  Supplement to: Kaminski, Michael Anthony; Gradstein, Felix M; Berggren, William A (1989): Paleogene benthic foraminifer biostratigraphy and paleoecology at Site 647, southern Labrador Sea. In: Srivastava, SP; Arthur, M; Clement, B; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 105, 705-730, https://doi.org/10.2973/odp.proc.sr.105.124.1989
    Publikationsdatum: 2024-01-09
    Beschreibung: Benthic foraminifers were examined from the Paleogene of Ocean Drilling Program (ODP) Site 647 and Deep Sea Drilling Program (DSDP) Site 112 in the southern Labrador Sea. The Paleogene sequence of the deep Labrador Sea can be subdivided into seven assemblages, based on the ranges and relative abundance of characteristic taxa. The first occurrences (FOs) and last occurrences (LOs) of important benthic taxa are calibrated to a standard biochronology, by interpolating from our age model for Site 647. The biostratigraphy of Site 647 is used to improve the age estimates of Site112 cores. Fifteen microfossil events in Site 647 also are found in the sedimentary wedge along the Labrador Margin. A comparison of the probabilistic microfossil sequence from the Labrador Margin with that at Site 647 yields four isochronous benthic foraminifer LOs. Two new species are described from Sites 647 and 112: Hyperammina kenmilleri, Kaminski n.sp., and Ammodiscus nagyi Kaminski n.sp. Significant faunal turnovers are observed at the Ypresian/Lutetian and Eocene/Oligocene boundaries. The Ypresian/Lutetian boundary is characterized by a Glomospira-facies and is attributed to a rise in the CCD (carbonate compensation depth) associated with the NP14 lowstand in sea level. The Eocene/Oligocene boundary is delimited by the LO of Spiroplectammina spectabilis and Reticulophragmium amplectens. The change from an Eocene agglutinated assemblageto a predominantly calcareous assemblage in the early Oligocene took place gradually, over a period of about 4 Ma, but the rate of change accelerated near the boundary. This faunal turnover is attributed to changes in the preservationof agglutinated foraminifers, as delicate species disappeared first. Increasingly poorer preservation of agglutinated foraminifers in the late Eocene to earliest Oligocene reflects the first appearance of cool, nutrient-poor deep water in the southern Labrador Sea. The approximately coeval disappearance of agglutinated assemblages along the Labrador Margin was caused by a regional trend from slope to shelf environments, accentuated by the 'mid'-Oligocene lowstand in sea level.
    Schlagwort(e): 105-647; Age, maximum/old; Age, minimum/young; Age model; Ageprofile Datum Description; COMPCORE; Composite Core; DEPTH, sediment/rock; Joides Resolution; Leg105; Ocean Drilling Program; ODP; South Atlantic Ocean
    Materialart: Dataset
    Format: text/tab-separated-values, 101 data points
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  • 10
    Publikationsdatum: 2024-01-09
    Schlagwort(e): 123-765B; Age, comment; Age, maximum/old; Age model; Ageprofile Datum Description; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg123; Ocean Drilling Program; ODP; Sample code/label; Sample code/label 2; South Indian Ridge, South Indian Ocean
    Materialart: Dataset
    Format: text/tab-separated-values, 94 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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