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| Format: | Dataset Open Access |
| Language: | en |
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PANGAEA
1995
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| Online Access: | https://doi.org/10.1594/PANGAEA.727500 |
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| _version_ | 1867171764054786048 |
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| author | Barash, Max S Kruglikova, Svetlana B |
| author_facet | Barash, Max S Kruglikova, Svetlana B |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Radiolaria were studied in 19 manganese nodules raised from the bottom. The nodules occurred mainly on the surface of thin Quaternary sediments covering Tertiary deposits of various ages (Middle Eocene to Early Miocene). Radiolaria in nodule cores and in inner and surface layers were studied. We found 85 radiolaria species and groups of species. Usually 1-4 to 6-19 radiolaria species were detected in each of the samples. Species belonging to Middle Eocene, Late Miocene to Early Oligocene, and Oligocene to Early Miocene were found. Rare Neogene species were revealed only in fractured surface layers. Age of the nodules is mainly Oligocene. Seismic waves cause sediment vibration, loosening disintegration, and removal of suspension by bottom currents. The vibration effect causes ancient nodules to float up to the surface of Quaternary sediment. This hypothesis suggests the reason for characteristics of the Clarion-Clipperton zone: regional stratigraphic hiatus, accumulation of residual fields of nodules, and the ''floating up'' of nodules to the surface of the Quaternary sediments. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_727500 |
| institution | PANGAEA |
| language | en |
| publishDate | 1995 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | (Table 2) Radiolaria species in nodule samples from the Clarion-Clipperton province, Pacific Ocean Barash, Max S Kruglikova, Svetlana B Archive of Ocean Data; ARCOD; Artophormis gracilis; Botryocella sp.; Botryopyle dictyocephalus; Calocyclas asperum; Calocyclas hispida; Calocyclas turris; Calocycletta robusta; Calocycletta sp.; Carpocanistrum azyx; Carpocanistrum cingulatum; Carpocanistrum sp.; Carpocanopsis sp.; Centrobotrys gravida; Centrobotrys petrushevskayae; Ceratospyris sp.; Clarion-Clipperton Fraction Zone, North East Pacific Ocean; Cyclampterium leptetrum; Cyrtocapsella tetrapera; Dendrospyris anthocyrtoides; Dendrospyris pannosa; Dicolocapsa microcerpa; Dictyoprora mongolfieri; Dictyoprora ornata; DM41; DM41-3830-0; DM41-3830-10; DM41-3830-5; DM41-3832; DM41-3833-0; DM41-3833-1; DM41-3833-10; DM41-3833-11; DM41-3833-23; DM41-3833-35; DM41-3833-5; DM41-3833-6; DM41-3835; Dmitry Mendeleev; Dorcadospyris argisca; Dorcadospyris ateuchus; Dorcadospyris forcipata; Dorcadospyris pseudopapilio; Dorcadospyris sp.; Elevation of event; Euchitonia elegans; Eucyrtidium aff. montiparum; Eucyrtidium diaphanes; Eucyrtidium montiparum; Eusyringium fistuligerum; Event label; GC; Giraffospyris didiceros; Grab; GRAB; Gravity corer; Latitude of event; Liriospyris elevata; Liriospyris group; Liriospyris sp.; Lithochytris vespertilio; Lithocyclia aristotelis; Lithocyclia ocellus; Lithomitra elizabethae; Lithotympanium tuberosum; Longitude of event; Lychnocanium bellum; Lychnocanium sp.; Lychnocanoma aff. elisabethae; Lychnocanoma babylonis; Lychnocanoma elongata; Lychnocanoma sp.; Octopyle sp.; Orosphaeridae; Periphaena decora; Phormostichoartus corona; Podocyrtis goetheana; Podocyrtis helenae; Podocyrtis sp.; Pterocorys minythorax; Rhabdolithis pipa; Rhopalocanium ornatum; Sample code/label; Sample comment; Sample type; Spongaster tetras tetras; Spyrida; Stylodictya aculeata; Tetraspyris fiscella; Theocampe callimorphos; Theocyrtis tuberosa; Tholospyris anthopora; Tholospyris pentagona; Tholospyris sp.; Thyrsocyrtis bromia; Thyrsocyrtis tetracantha; Triceraspyris triceros; Zygocircus sp. Radiolaria were studied in 19 manganese nodules raised from the bottom. The nodules occurred mainly on the surface of thin Quaternary sediments covering Tertiary deposits of various ages (Middle Eocene to Early Miocene). Radiolaria in nodule cores and in inner and surface layers were studied. We found 85 radiolaria species and groups of species. Usually 1-4 to 6-19 radiolaria species were detected in each of the samples. Species belonging to Middle Eocene, Late Miocene to Early Oligocene, and Oligocene to Early Miocene were found. Rare Neogene species were revealed only in fractured surface layers. Age of the nodules is mainly Oligocene. Seismic waves cause sediment vibration, loosening disintegration, and removal of suspension by bottom currents. The vibration effect causes ancient nodules to float up to the surface of Quaternary sediment. This hypothesis suggests the reason for characteristics of the Clarion-Clipperton zone: regional stratigraphic hiatus, accumulation of residual fields of nodules, and the ''floating up'' of nodules to the surface of the Quaternary sediments. |
| title | (Table 2) Radiolaria species in nodule samples from the Clarion-Clipperton province, Pacific Ocean |
| topic | Archive of Ocean Data; ARCOD; Artophormis gracilis; Botryocella sp.; Botryopyle dictyocephalus; Calocyclas asperum; Calocyclas hispida; Calocyclas turris; Calocycletta robusta; Calocycletta sp.; Carpocanistrum azyx; Carpocanistrum cingulatum; Carpocanistrum sp.; Carpocanopsis sp.; Centrobotrys gravida; Centrobotrys petrushevskayae; Ceratospyris sp.; Clarion-Clipperton Fraction Zone, North East Pacific Ocean; Cyclampterium leptetrum; Cyrtocapsella tetrapera; Dendrospyris anthocyrtoides; Dendrospyris pannosa; Dicolocapsa microcerpa; Dictyoprora mongolfieri; Dictyoprora ornata; DM41; DM41-3830-0; DM41-3830-10; DM41-3830-5; DM41-3832; DM41-3833-0; DM41-3833-1; DM41-3833-10; DM41-3833-11; DM41-3833-23; DM41-3833-35; DM41-3833-5; DM41-3833-6; DM41-3835; Dmitry Mendeleev; Dorcadospyris argisca; Dorcadospyris ateuchus; Dorcadospyris forcipata; Dorcadospyris pseudopapilio; Dorcadospyris sp.; Elevation of event; Euchitonia elegans; Eucyrtidium aff. montiparum; Eucyrtidium diaphanes; Eucyrtidium montiparum; Eusyringium fistuligerum; Event label; GC; Giraffospyris didiceros; Grab; GRAB; Gravity corer; Latitude of event; Liriospyris elevata; Liriospyris group; Liriospyris sp.; Lithochytris vespertilio; Lithocyclia aristotelis; Lithocyclia ocellus; Lithomitra elizabethae; Lithotympanium tuberosum; Longitude of event; Lychnocanium bellum; Lychnocanium sp.; Lychnocanoma aff. elisabethae; Lychnocanoma babylonis; Lychnocanoma elongata; Lychnocanoma sp.; Octopyle sp.; Orosphaeridae; Periphaena decora; Phormostichoartus corona; Podocyrtis goetheana; Podocyrtis helenae; Podocyrtis sp.; Pterocorys minythorax; Rhabdolithis pipa; Rhopalocanium ornatum; Sample code/label; Sample comment; Sample type; Spongaster tetras tetras; Spyrida; Stylodictya aculeata; Tetraspyris fiscella; Theocampe callimorphos; Theocyrtis tuberosa; Tholospyris anthopora; Tholospyris pentagona; Tholospyris sp.; Thyrsocyrtis bromia; Thyrsocyrtis tetracantha; Triceraspyris triceros; Zygocircus sp. |
| url | https://doi.org/10.1594/PANGAEA.727500 |