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  • 1
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    (Table 1) Preservation of sporomorphs in lithologic units III and IV of ODP Hole 120-750B (1992)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 120-750B; DEPTH, sediment/rock; Dinoflagellata; Dinoflagellate preservation; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Leg120; Ocean Drilling Program; ODP; Preservation; Sample code/label; South Indian Ridge, South Indian Ocean; Spores
    Type: Dataset
    Format: text/tab-separated-values, 31 data points
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    DATA PANGAEA
  • 2
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    (Table 3) Relative abundances of sporomorphe types in samples from lithologic Unit IV of ODP Hole 120-750B ODP Hole 120-750B (1992)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 120-750B; Ashmoripollis; Balmeiopsis; Corollina; Cyathidites; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Gleicheniidites; Joides Resolution; Laevigatosporites; Leg120; Ocean Drilling Program; ODP; Pollen, angiosperms; Pollen, saccate; Sample code/label; South Indian Ridge, South Indian Ocean; Spores, trilete
    Type: Dataset
    Format: text/tab-separated-values, 60 data points
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    DATA PANGAEA
  • 3
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    (Table 2) Stratigraphic occurrences of the dinoflagellate cysts in lithologic Subunit IIIB of ODP Hole 120-748C (1992)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 120-748C; Achomosphaera triangulata; Ascodinium acrophorum; Cassiculosphaeridia reticulata; Chatangiella sp.; Chlamydophorella nyei; Cleistosphaeridium ancoriferum; Conosphaeridium striatoconus; Craspedodinium sp.; Cribroperidinium cooksoniae; Cribroperidinium edwardsi; Cribroperidinium muderongense; Cyclonephelium hughesii; DEPTH, sediment/rock; Diconodinium multispinum; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Exochosphaeridium sp.; Eyrea nebulosa; Florentinia spp.; Heterosphaeridium sp.; Hystrichosphaeridium pulchrum; Isabelidinium spp.; Joides Resolution; Kallosphaeridium granulatum; Kiokansium polypes; Kleithriasphaeridium tubulosum; Leg120; Lithosphaeridium siphoniphorum; Maduradinium sp.; Maghrebinia sp.; Microdinium ornatum; Ocean Drilling Program; Odontochitina spp.; ODP; Oligosphaeridium spp.; Palaeohystrichophora infusorioides; Pervosphaeridium pseudhystrichodinium; Prolixosphaeridium sp.; Sample code/label; South Indian Ridge, South Indian Ocean; Spiniferites spp.; Stage; Taleisphaera hydra; Tanyosphaeridium salpinx; Tehamadinium sp.; Trithyrodinium sp.; Valensiella griphus; Xenascus cf. ceratioides
    Type: Dataset
    Format: text/tab-separated-values, 1720 data points
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    DATA PANGAEA
  • 4
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    (Table 1) Marine kerogen and dinocyst species diversity from selected samples of lithologic Subunit IIIB of ODP Hole 120-748C (1992)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 120-748C; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Joides Resolution; Kerogen, marine; Leg120; Number of species; Ocean Drilling Program; ODP; Sample code/label; South Indian Ridge, South Indian Ocean
    Type: Dataset
    Format: text/tab-separated-values, 108 data points
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  • 5
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    (Table 3) Stratigraphic distribution of pollen and spores in lithologic Subunit IIIB of ODP Hole 120-748C (1992)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 120-748C; Alisporites similis; Appendicisporites sp.; Baculatisporites comaumensis; Calamospora sp.; Ceratosporites distalgranulatus; Cicatricosisporites australiensis; Cicatricosisporites hughesi; Cicatricosisporites pseudotripartitus; Clavatipollenites hughesii; Clavatipollenites sp.; Clavifera triplex; Contignisporites fornicatus; Corollina sp.; Cupressacites sp.; Cyatheacidites annulatus; Cyatheacidites botuliformis; Cyatheacidites sp.; Cyathidites australis; Cyathidites minor; DEPTH, sediment/rock; Dictyophyllidites equiexinus; Dictyotosporites complex; Distaltriangulisporites sp.; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Ephedripites sp.; Foveogleicheniidites confossus; Fungal fruit-bodies; Interulobites intraverrucatus; Joides Resolution; Laevigatosporites ovatus; Leg120; Leptolepidites major; Leptolepidites verrucatus; Liliacidites sp.; Microcachryidites parvusi; Microcachryidites sp.; Microfoveolatisporis canaliculatus; Neoraistrickia equalis; Neoraistrickia truncata; Nevesisporites dailyi; Nyssapollenites lanosus; Ocean Drilling Program; ODP; Perotrilites majus; Podocarpidites sp.; Polycingulatisporites clavus; Reticulisporites sp.; Retimonocolpites peroreticulatus; Retitriletes austroclavatidites; Sample code/label; Schizosporis reticulatus; South Indian Ridge, South Indian Ocean; Spores; Stereisporites antiquasporites; Stereisporites pocockii; Stoverisporites lunaris; Stoverisporites microverruvatus; Stoverisporites tuberculiformis; Tricolporopollenites sp.; Tuberculatosporites sp.; Vitreisporites pallidus
    Type: Dataset
    Format: text/tab-separated-values, 2537 data points
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    DATA PANGAEA
  • 6
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    Early Albian palynoflora of ODP Hole 120-750B (1992)
    PANGAEA
    In:  Supplement to: Mohr, Barbara A R; Gee, Carole T (1992): An early Albian palynoflora from the Kerguelen Plateau, Southern Indian Ocean (Leg 120). In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 255-271, https://doi.org/10.2973/odp.proc.sr.120.161.1992
    Details
    Publication Date: 2024-01-09
    Description: A well-preserved, diverse sporomorph flora of over 60 species has been found in Cores 120-750B-12W through -14R from the Southern Kerguelen Plateau. Analysis of the flora indicates that the terrestrial sediments overlaying the basaltic basement are late Early Cretaceous in age. Ranges of the sporomorphs in other parts of Gondwana and the morphology and paucity of angiosperm pollen grains confine the age of this section to the early to possibly early middle Albian. The Albian palynomorph assemblages in Hole 750B are composed primarily of fern spores and podocarpaceous pollen, and show most similarity to those from southern Australia. Changes in the flora through time reflect the successional vegetation changes on barren volcanic islands, beginning with high percentages of colonizing ferns and maturing into conifer (podocarp) forests. The flora shows some signs of endemism, which may be a result of the isolated position of the Kerguelen Islands during the Early Cretaceous. This endemism is expressed by high percentages of a distinctive monosulcate pollen species Ashmoripollis woodywisei n.sp. of pteridosperm or cycadophytean origin, and by a thick-walled, monosulcate angiosperm pollen species of the genus Clavatipollenites. The climatic conditions were probably cool to temperate (mean annual temperature approximately 7°-12°C) and humid (annual rainfall 〉1000 mm), analogous to modern Podocarpus-dominated forests in New Zealand and in South American mountain regions.
    Keywords: 120-750B; DRILL; Drilling/drill rig; Joides Resolution; Leg120; Ocean Drilling Program; ODP; South Indian Ridge, South Indian Ocean
    Type: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
  • 7
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    Late Cretaceous palynofloras of ODP Hole 120-748C (1992)
    PANGAEA
    In:  Supplement to: Mohr, Barbara A R; Gee, Carole T (1992): Late Cretaceous palynofloras (sporomorphs and dinocysts) from the Kerguelen Plateau, southern Indian Ocean (Sites 748 and 750). In: Wise, SW; Schlich, R; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 120, 281-306, https://doi.org/10.2973/odp.proc.sr.120.196.1992
    Details
    Publication Date: 2024-01-09
    Description: Pollen, spore, and dinoflagellate cyst floras of Late Cretaceous age were found at Sites 748 (120-748C-62R through -79R) and 750 (120-750B-11W) of Ocean Drilling Program Leg 120 to the Kerguelen Plateau area in the Southern Indian Ocean. The ranges of dinocyst and sporomorph species indicate ages between the Cenomanian and Coniacian (to possibly the early Santonian). The ratio of marine/terrestrial flora elements is extremely variable, showing a trend from highly terrestrial (up to —70%) in the late Cenomanian to highly marine (up to 90%) in the Coniacian/early Santonian. Low sedimentation rates of about 3-5 cm/1000 yr were calculated for the glauconitic sediments of Turonian and Coniacian age at Site 748 (lithologic Subunit IIIB).
    Keywords: 120-748C; DRILL; Drilling/drill rig; Joides Resolution; Leg120; Ocean Drilling Program; ODP; South Indian Ridge, South Indian Ocean
    Type: Dataset
    Format: application/zip, 3 datasets
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  • 8
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    (Table 4) Stratigraphic occurrences of the sporomorphs in lithologic units III and IV of ODP Hole 120-750B ODP Hole 120-750B (1992)
    PANGAEA
    Details
    Publication Date: 2024-01-09
    Keywords: 120-750B; Baculatisporites sp.; Balmeiopsis limbata; Balmeiopsis robusta; Calamospora mesozoica; Camerozonosporites sp.; Cibotiumspora sp.; Cicatricosisporites australiensis; Cicatricosisporites hughesi; Cicatricosisporites sp.; Clavatipollenites hughesii; Concavissimisporites sp.; Contignisporites cooksonii; Contignisporites glebulentus; Corollina sp.; Cyatheacidites sp.; Cycadopites sp.; Densoisporites sp.; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Foveosporites canalis; Gleicheniidites sp.; Impardecispora triorticulosus; Interulobites intraverrucatus; Ischyosporites variegatus; Joides Resolution; Laevigatosporites sp.; Leg120; Microcachrydites antarcticus; Neoraistrickia levidensis; Neoraistrickia truncata; Ocean Drilling Program; ODP; Perotrilites linearis; Podocarpidites sp.; Polycingulatisporites sp.; Retitriletes sp.; Sample code/label; South Indian Ridge, South Indian Ocean; Stereisporites sp.; Trichotomosulcites subgranulatus; Tricolpopollenites sp.; Trilites tuberculiformis; Vallizonosporites sp.; Vitreisporites signatus
    Type: Dataset
    Format: text/tab-separated-values, 370 data points
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  • 9
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    Silica entry and accumulation in standing trees in a hot-spring environment: cellular pathways, rapid pace and fossilization potential (2021)
    Details
    Publication Date: 2021-09-24
    Description: Silicification is the most important process of fossilization resulting in the preservation of internal tissues in plants, thereby providing essential information on the anatomy, life history, and evolution of land plants. However, fundamental knowledge of silica uptake, precipitation, and contribution to in situ plant fossilization is limited. To identify the cellular pathway of aqueous silica and subsequent fluid–wood interaction processes, we investigated upright standing young trees of lodgepole pine (Pinus contorta) in the hot-spring environment of Cistern Spring, Yellowstone National Park, USA. Our multi-method analytical approach using x-ray diffraction, Raman spectroscopy, scanning electron microscopy, and electron probe microanalyses shows that the surficial and internally co-precipitated silica–halite–gypsum assemblage traces the flow of silica-rich fluid and documents fluid retention after short-term hot-spring water immersion and evaporation. Element distribution maps reveal systematic 2D and 3D differences between silica quantities deposited in earlywood and latewood. The distribution of inorganic impurities in cell walls traces the anatomical structure of the wood and indicates rapid migration of homogeneous fluid into the waterlogged organic substrate. Our results show that the preferential pathway of silica-rich fluid into the above-ground wood was through the decorticated periphery which took place during a short-term flooding, ranging from days to weeks, of hot-spring fluid. In conclusion, the fluid retention capability in cellular pore space controls the in situ silicification process. The silicification of trees in growth position is a rapid process in which the in vivo transport of silica-rich fluid upward through the secondary xylem plays an insignificant role.
    Keywords: 561.16 ; hot springs ; Pinus contorta ; in situ fossilization ; silica ; taphonomy ; wood
    Language: English
    Type: map
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    CITATION GEO-LEO
  • 10
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    Fossil charcoal: techniques and applications (1990)
    Elsevier
    Details
    Publication Date: 1990-07-01
    Print ISSN: 0034-6667
    Electronic ISSN: 1879-0615
    Topics: Geosciences
    Published by Elsevier
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    PAPER CURRENT
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