(Table 1) Diatom biostratigraphy in ODP Site 164-997 sediments
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| Lenguaje: | en |
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PANGAEA
2000
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| _version_ | 1867172326186942464 |
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| author | Ikeda, Akihiro Okada, Hisatake Koizumi, Itaru |
| author_facet | Ikeda, Akihiro Okada, Hisatake Koizumi, Itaru |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Ocean Drilling Program Site 997 is located on the Blake Ridge, which underlies a periphery of the subtropical central gyre and is under the profound influence of the warm saline Gulf Stream as well as the Western Boundary Undercurrent (WBUC), which carried the clastic materials to the Blake Ridge as sediment drift. The shipboard study of nannofossils and sedimentary particles revealed a downward increase in sedimentation rate and a higher concentration of diatoms in three stratigraphic intervals (Shipboard Scientific Party, 1996). Thus, the stratigraphic change in diatom accumulation rate is important to understand the paleoceanographic and depositional history of this region. We have been studying the time-progressive change of diatom flora at Site 997 by quantitatively observing the flora in 141 samples selected from the entire sequence recovered from Holes 997A and 997B. These samples were chosen to represent a time interval of 50 k.y. Some of the results currently obtained through this study are presented in this data report. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_804537 |
| institution | PANGAEA |
| language | en |
| publishDate | 2000 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 1) Diatom biostratigraphy in ODP Site 164-997 sediments Ikeda, Akihiro Okada, Hisatake Koizumi, Itaru 164-997A; 164-997B; Actinocyclus curvatulus; Actinocyclus elongatus; Actinocyclus ingens; Actinocyclus octonarius; Actinocyclus spp.; Actinoptychus heliopelta; Actinoptychus intermedius; Actinoptychus senarius; Actinoptychus splendens; Actinoptychus vulgaris; AGE; Asterolampra sp.; Asteromphalus arachne; Azpeitia africana; Azpeitia nodulifera; Azpeitia tabularis; Azpeitia vetustissima; Bacillaria paxillifer; Bacteriastrum spp.; Biddulphia spp.; Cavitatus jouseanus; Chaetoceros, resting spores; Coscinodiscus aff. antimimos; Coscinodiscus denarius; Coscinodiscus marginatus; Coscinodiscus nitidus; Coscinodiscus obscurus; Coscinodiscus oculus-iridis; Coscinodiscus perforatus; Coscinodiscus plicatus; Coscinodiscus radiatus; Coscinodiscus spp.; Counting, diatoms; Cyclotella sp.; Cyclotella striata; Cyclotella stylorum; Cymatosira immunis; Cymatosira sp.; Delphineis angustata; Delphineis spp.; Delphineis surirella; Denticulopsis dimorpha; Denticulopsis hustedtii; DEPTH, sediment/rock; Diatoms; Diatoms, freshwater; Diploneis spp.; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Epithemia spp.; Event label; Fragilariopsis doliolus; Glyphodesmis acus; Goniothecium sp.; Grammatophora spp.; Hantzschia amphioxys; Hemiaulus spp.; Hemidiscus cuneiformis; Hemidiscus ovalis; Hyalodiscus sp.; Joides Resolution; Koizumia adaroi; Koizumia tatsunokuchiensis; Leg164; Lyrella hennedyii; Melosira architecturalis; Melosira spp.; Melosira westii; Neodelphineis pelagica; Neodenticula kamtschatica; Neodenticula seminae; Nicaraguan Rise, North Atlantic Ocean; Nitzschia bicapitata group; Nitzschia constricta; Nitzschia cylindrica; Nitzschia fossilis; Nitzschia granulata; Nitzschia jouseae; Nitzschia lorenziana; Nitzschia marina; Nitzschia miocenica; Nitzschia panduriformis; Nitzschia reinholdii; Nitzschia rolandii; Nitzschia spp.; Ocean Drilling Program; Odontella sp.; ODP; Paralia sulcata; Plagiogramma sp.; Planktoniella sol; Pleurosigma spp.; Porosira glacilis; Porosira pseudodenticulata; Proboscia alata; Pseudopodosira spp.; Pseudotriceratium wallichii; Rhaphoneis amphiceros; Rhaphoneis parilis; Rhaphoneis spp.; Rhizosolenia bergonii; Rhizosolenia hebetata; Rhizosolenia setigera; Rhizosolenia spp.; Rhizosolenia styliformis; Roperia tesselata; Rossiella paleacea; Rossiella spp.; Sample code/label; Stauroneis spp.; Stephanopyxis spp.; Stephanopyxis turris; Stictodiscus spp.; Synedra indica; Synedra ulna; Tetracyclus emarginatus; Thalassionema bacillaris; Thalassionema hirosakiensis; Thalassionema nitzschioides; Thalassionema nitzschioides var. parva; Thalassionema schraderi; Thalassionema sp.; Thalassiosira anguste-lineata; Thalassiosira cf. decipiens; Thalassiosira convexa; Thalassiosira eccentrica; Thalassiosira ferelineata; Thalassiosira jouseae; Thalassiosira leptopus; Thalassiosira lineata; Thalassiosira manifesta; Thalassiosira miocenica; Thalassiosira nidulus; Thalassiosira oestrupii; Thalassiosira pacifica; Thalassiosira plicata; Thalassiosira praeoestrupii; Thalassiosira sp.; Thalassiosira spp.; Thalassiosira symbolophora; Thalassiosira symmetrica; Thalassiosira tetraoestrupii; Thalassiosira trifulta; Thalassiosira zabelinae; Thalassiothrix acuta; Thalassiothrix frauenfeldii; Thalassiothrix longissima; Thalassiothrix robusta; Trachyneis aspera; Triceratium spp.; Trigonium alternans Ocean Drilling Program Site 997 is located on the Blake Ridge, which underlies a periphery of the subtropical central gyre and is under the profound influence of the warm saline Gulf Stream as well as the Western Boundary Undercurrent (WBUC), which carried the clastic materials to the Blake Ridge as sediment drift. The shipboard study of nannofossils and sedimentary particles revealed a downward increase in sedimentation rate and a higher concentration of diatoms in three stratigraphic intervals (Shipboard Scientific Party, 1996). Thus, the stratigraphic change in diatom accumulation rate is important to understand the paleoceanographic and depositional history of this region. We have been studying the time-progressive change of diatom flora at Site 997 by quantitatively observing the flora in 141 samples selected from the entire sequence recovered from Holes 997A and 997B. These samples were chosen to represent a time interval of 50 k.y. Some of the results currently obtained through this study are presented in this data report. |
| title | (Table 1) Diatom biostratigraphy in ODP Site 164-997 sediments |
| topic | 164-997A; 164-997B; Actinocyclus curvatulus; Actinocyclus elongatus; Actinocyclus ingens; Actinocyclus octonarius; Actinocyclus spp.; Actinoptychus heliopelta; Actinoptychus intermedius; Actinoptychus senarius; Actinoptychus splendens; Actinoptychus vulgaris; AGE; Asterolampra sp.; Asteromphalus arachne; Azpeitia africana; Azpeitia nodulifera; Azpeitia tabularis; Azpeitia vetustissima; Bacillaria paxillifer; Bacteriastrum spp.; Biddulphia spp.; Cavitatus jouseanus; Chaetoceros, resting spores; Coscinodiscus aff. antimimos; Coscinodiscus denarius; Coscinodiscus marginatus; Coscinodiscus nitidus; Coscinodiscus obscurus; Coscinodiscus oculus-iridis; Coscinodiscus perforatus; Coscinodiscus plicatus; Coscinodiscus radiatus; Coscinodiscus spp.; Counting, diatoms; Cyclotella sp.; Cyclotella striata; Cyclotella stylorum; Cymatosira immunis; Cymatosira sp.; Delphineis angustata; Delphineis spp.; Delphineis surirella; Denticulopsis dimorpha; Denticulopsis hustedtii; DEPTH, sediment/rock; Diatoms; Diatoms, freshwater; Diploneis spp.; DRILL; Drilling/drill rig; DSDP/ODP/IODP sample designation; Epithemia spp.; Event label; Fragilariopsis doliolus; Glyphodesmis acus; Goniothecium sp.; Grammatophora spp.; Hantzschia amphioxys; Hemiaulus spp.; Hemidiscus cuneiformis; Hemidiscus ovalis; Hyalodiscus sp.; Joides Resolution; Koizumia adaroi; Koizumia tatsunokuchiensis; Leg164; Lyrella hennedyii; Melosira architecturalis; Melosira spp.; Melosira westii; Neodelphineis pelagica; Neodenticula kamtschatica; Neodenticula seminae; Nicaraguan Rise, North Atlantic Ocean; Nitzschia bicapitata group; Nitzschia constricta; Nitzschia cylindrica; Nitzschia fossilis; Nitzschia granulata; Nitzschia jouseae; Nitzschia lorenziana; Nitzschia marina; Nitzschia miocenica; Nitzschia panduriformis; Nitzschia reinholdii; Nitzschia rolandii; Nitzschia spp.; Ocean Drilling Program; Odontella sp.; ODP; Paralia sulcata; Plagiogramma sp.; Planktoniella sol; Pleurosigma spp.; Porosira glacilis; Porosira pseudodenticulata; Proboscia alata; Pseudopodosira spp.; Pseudotriceratium wallichii; Rhaphoneis amphiceros; Rhaphoneis parilis; Rhaphoneis spp.; Rhizosolenia bergonii; Rhizosolenia hebetata; Rhizosolenia setigera; Rhizosolenia spp.; Rhizosolenia styliformis; Roperia tesselata; Rossiella paleacea; Rossiella spp.; Sample code/label; Stauroneis spp.; Stephanopyxis spp.; Stephanopyxis turris; Stictodiscus spp.; Synedra indica; Synedra ulna; Tetracyclus emarginatus; Thalassionema bacillaris; Thalassionema hirosakiensis; Thalassionema nitzschioides; Thalassionema nitzschioides var. parva; Thalassionema schraderi; Thalassionema sp.; Thalassiosira anguste-lineata; Thalassiosira cf. decipiens; Thalassiosira convexa; Thalassiosira eccentrica; Thalassiosira ferelineata; Thalassiosira jouseae; Thalassiosira leptopus; Thalassiosira lineata; Thalassiosira manifesta; Thalassiosira miocenica; Thalassiosira nidulus; Thalassiosira oestrupii; Thalassiosira pacifica; Thalassiosira plicata; Thalassiosira praeoestrupii; Thalassiosira sp.; Thalassiosira spp.; Thalassiosira symbolophora; Thalassiosira symmetrica; Thalassiosira tetraoestrupii; Thalassiosira trifulta; Thalassiosira zabelinae; Thalassiothrix acuta; Thalassiothrix frauenfeldii; Thalassiothrix longissima; Thalassiothrix robusta; Trachyneis aspera; Triceratium spp.; Trigonium alternans |
| url | https://doi.org/10.1594/PANGAEA.804537 |