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  • 1
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    Quantitative Radiolarian Slides Prepared from Soft Marine Sediments (1996)
    GeoScienceWorld
    Details
    Publication Date: 1996-01-01
    Print ISSN: 0026-2803
    Electronic ISSN: 0026-2803
    Topics: Geosciences
    Published by GeoScienceWorld on behalf of Micropaleontology Project.
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    PAPER CURRENT
  • 2
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    Silicoflagellates, ebridians, and actiniscidians from Pliocene and Quaternary sediments off southern Chile, ODP Leg 141 (1995)
    In:  Proceedings of the Ocean Drilling Program: Scientific Results, 141 . pp. 223-233.
    Details
    Publication Date: 2016-10-25
    Description: Three groups of siliceous flagellates are discussed from Sites 860 and 861 in the southeastern South Pacific Ocean off southern Chile. Three silicoflagellate zones and two ebridian/actiniscidian zones are recognized in upper Pliocene to Quaternary sediments. Repeated occurrences of Dictyocha messanensis messanensis demonstrate that the cool subpolar water masses of the Peru Current were mixed with or replaced by warm transitional water masses of the central South Pacific several times during late Pliocene to middle Pleistocene times. Continuous occurrences of Dictyocha messanensis aculeata in Zone NN21 sediments reflect an enhanced influence of transitional surface-water also during late Pleistocene and Holocene times. These Pliocene and Quaternary warming episodes may have been caused by strong El Nino activities, which resulted in a southward shift of the transitional water belt and an expansion of warmer surface-water over the study area.
    Type: Article , NonPeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 3
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    Phytoliths from the Southwest Pacific, Site 591 (1985)
    In:  Initial Reports of The Deep Sea Drilling Project, 90 . pp. 1079-1084.
    Details
    Publication Date: 2016-03-09
    Description: Phytoliths are described from deep sea sediments at Site 591 in the southwestern Pacific. Their regional distribution is related to the arid and semiarid regions of Australia, from where they were blown by westerly winds into the Tasman Sea area. The stratigraphic record ranges from the middle Miocene, at about 14.4 m.y., until the early Pleistocene. A distinct increase in frequencies observed during the Pliocene and a maximum at about 2.5 m.y. coincide with important trends in paleogeography and paleoclimatology: the development of the Antarctic ice cap, the northward drift of the Australian Plate, and the generation of arid conditions on the Australian continent.
    Type: Article , NonPeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 4
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    Ebridians and actiniscidians from the Southwest Pacific (1985)
    In:  Initial Reports of The Deep Sea Drilling Project, 90 . pp. 939-951.
    Details
    Publication Date: 2016-03-09
    Description: Ebridians and actiniscidians are described from Sites 588, 591, and 594 in the southwest Pacific. The middle Miocene to early Pliocene interval at Site 591 can be subdivided into five ebridian-actiniscidian zones. These are correlated to standard nannoplankton zones. Five new species are described from the Neogene of the southwest Pacific: Ammodochium serotinum, Hermesinum obliquum, Actiniscusßosculus, A. laciniatus, and A squamosus.
    Type: Article , NonPeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 5
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    Phytoliths at DSDP Site 591 in the southwest Pacific and the aridification of Australia (1989)
    Enke
    In:  Geologische Rundschau, 78 (3). pp. 1165-1172.
    Details
    Publication Date: 2020-07-30
    Description: Phytoliths found in deep-sea sediments at DSDP Site 591 in the southwest Pacific reflect the onset and progress of aridification on the Australian continent from the middle Miocene to early Pleistocene (14.4.-1.0 Ma BP), including a maximum of aridity in the late Pliocene. The process can be attributed to the northward drift of the Australian Plate, the growth of Southern and Northern Hemisphere ice sheets, and related developments in the global wind system.
    Type: Article , PeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 6
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    Cenozoic siliceous flagellates from the Fram Strait and the East Greenland Margin: Biostratigraphic and paleoceanographic results (1996)
    In:  Proceedings of the Ocean Drilling Program: Scientific Results, 151 . pp. 101-124.
    Details
    Publication Date: 2016-10-25
    Description: More than 110 taxa of siliceous flagellates including silicoflagellates, ebridians, actiniscidians, and synuraceans are tabulated from Cenozoic sediments of Holes 908A and 913B. The assemblages investigated from Hole 908A, Fram Strait, are assigned to the upper Oligocene Cannopilus hemisphaericus Zone of silicoflagellates. The assemblages studied from Hole 913B, East Greenland margin, yielded in the upper part the middle Miocene Spongebria miocenica Zone of ebridians and in the lower part the middle to upper Eocene Corbisema hexacantha Zone of silicoflagellates. The assemblages of siliceous flagellates demonstrate that a permanent surface-water exchange may have existed between the Norwegian-Greenland Sea, the Arctic Ocean, and probably also the Barents Sea during Eocene and Oligocene times. Minor input of surface-water from the North Atlantic is indicated by certain silicoflagellates for late Oligocene time. Several taxa of silicoflagellates and ebridians were recognized as new, but most of them are treated with open nomenclature. Only 3 ebridian species that characterize middle to upper Eocene and upper Oligocene assemblages are formally introduced as new: Ebriopsis acuta, Hermesinella paraconata, and Hermesinum acus.
    Type: Article , NonPeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 7
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    Silicoflagellates and some sponge spicules from the southwest Pacific, Deep Sea Drilling Project, Leg 90 (1985)
    In:  Initial Reports of The Deep Sea Drilling Project, 90 . pp. 887-924.
    Details
    Publication Date: 2016-03-09
    Description: Silicoflagellates are described from Sites 588 (middle Eocene), 591 (middle Miocene to lower Pliocene), and 594 (middle Miocene to Quaternary) in the southwest Pacific. At Sites 591 and 594 a detailed silicoflagellate zonation is possible, although there are some obvious differences arising from the latitudinal position of the sites in the silicoflagellate assemblages. Comparison between the sequences recovered at Sites 591 and 206 (Leg 21) revealed two hiatuses in the latter, but helped to establish a zonation for this area from the lower Miocene to the Pleistocene and a correlation to standard nannoplankton zones. The stratigraphic implications of the taxonomy used by various authors and the species concept presented here are discussed in detail. Special reference is made to types described by Ehrenberg and to later synonyma, because the Ehrenberg collection is the base for all subsequent descriptions and evaluations of silicoflagellate taxa. Two new genera (Neonaviculopsis, Paramesocena), two new subspecies (Dictyocha fibula subsp. asymmetrica, Neonaviculopsis neonautica subsp. praenautica), and three new forms (Dictyocha perlaevis f. pentaradiata, Distephanus speculum subsp. speculum f. nonarius, and Mesocena ? hexalitha f. heptalitha) are described from the southwest Pacific Neogene and Pleistocene. Associated sponge spicules were noted and will be described in detail in a later paper, but some are documented on Plate 13.
    Type: Article , NonPeerReviewed
    Format: text
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    PAPER (OCEANREP)
  • 8
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    Silicoflagellates of DSDP Leg 90 sites
    PANGAEA
    In:  Supplement to: Locker, Sigurd; Martini, Erlend (1986): Silicoflagellates and some sponge spicules from the Soutwest Pacific, Deep Sea Drilling Project, Leg 90. In: Kennett, JP; von der Borch, CC; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 90, 887-924, https://doi.org/10.2973/dsdp.proc.90.116.1986
    Details
    Publication Date: 2023-05-12
    Description: Silicoflagellates are described from Sites 588 (middle Eocene), 591 (middle Miocene to lower Pliocene), and 594 (middle Miocene to Quaternary) in the southwest Pacific. At Sites 591 and 594 a detailed silicoflagellate zonation is possible, although there are some obvious differences arising from the latitudinal position of the sites in the silicoflagellate assemblages. Comparison between the sequences recovered at Sites 591 and 206 (Leg 21) revealed two hiatuses in the latter, but helped to establish a zonation for this area from the lower Miocene to the Pleistocene and a correlation to standard nannoplankton zones. The stratigraphic implications of the taxonomy used by various authors and the species concept presented here are discussed in detail. Special reference is made to types described by Ehrenberg and to later synonyma, because the Ehrenberg collection is the base for all subsequent descriptions and evaluations of silicoflagellate taxa. Two new genera (Neonaviculopsis, Paramesocena), two new subspecies (Dictyocha fibula subsp. asymmetrica, Neonaviculopsis neonautica subsp. praenautica), and three new forms (Dictyocha perlaevis f. pentaradiata, Distephanus speculum subsp. speculum f. nonarius, and Mesocena ? hexalitha f. heptalitha) are described from the southwest Pacific Neogene and Pleistocene. Associated sponge spicules were noted and will be described in detail in a later paper, but some are documented on Plate 13.
    Keywords: Deep Sea Drilling Project; DSDP
    Type: Dataset
    Format: application/zip, 3 datasets
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    DATA PANGAEA
  • 9
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    Ebridians and actiniscidians from DSDP Leg 90 sites
    PANGAEA
    In:  Supplement to: Locker, Sigurd; Martini, Erlend (1986): Ebridians and actiniscidians from the Southwest Pacific. In: Kennett, JP; von der Borch, CC; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 90, 939-951, https://doi.org/10.2973/dsdp.proc.90.118.1986
    Details
    Publication Date: 2023-05-12
    Description: Ebridians and actiniscidians are described from Sites 588, 591, and 594 in the southwest Pacific. The middle Miocene to early Pliocene interval at Site 591 can be subdivided into five ebridian-actiniscidian zones. These are correlated to standard nannoplankton zones. Five new species are described from the Neogene of the southwest Pacific: Ammodochium serotinum, Hermesinum obliquum, Actiniscus flosculus, A. laciniatus, and A squamosus.
    Keywords: Deep Sea Drilling Project; DSDP
    Type: Dataset
    Format: application/zip, 2 datasets
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    DATA PANGAEA
  • 10
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    (Table 1) Distribution of ebridians in selected samples from DSDP Hole 90-588C
    PANGAEA
    Details
    Publication Date: 2023-06-27
    Keywords: 90-588C; Ammodochium rectangulare; Craniopsis sp.; Deep Sea Drilling Project; DEPTH, sediment/rock; DRILL; Drilling/drill rig; DSDP; DSDP/ODP/IODP sample designation; Ebridians; Ebriopsis crenulata; Epoch; Glomar Challenger; Leg90; Micromarsupium anceps; Nannofossil zone; Sample code/label; South Pacific/Tasman Sea/CONT RISE
    Type: Dataset
    Format: text/tab-separated-values, 32 data points
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    DATA PANGAEA
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