de.pangaea.dataset816237 und dataset PANGAEA

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https://www.pangaea.de/ information pointOfContact 2026-04-15T05:56:28Z https://doi.pangaea.de/10.1594/PANGAEA.816237 1983-01-01 publication https://doi.org/10.1594/PANGAEA.816237 Bukry, David

dbukry@usgs.gov

author PANGAEA

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https://www.pangaea.de/ information publisher tableDigital Supplement to: Bukry, David (1983): Upper Cenozoic silicoflagellates from offshore Ecuador, Deep Sea Drilling Project Site 504. In: Cann, JR; Langseth, MG; Honnorez, J; Von Herzen, RP; White, SM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 69, 321-342, https://doi.org/10.2973/dsdp.proc.69.113.1983 Diverse and abundant late Miocene to Pleistocene silicoflagellates at DSDP Site 504 can be correlated by tropical biostratigraphic zones and relative paleotemperature values to eastern tropical Pacific reference site DSDP 503A farther to the west. Early Pliocene assemblages, which were poorly known until now, are present and can be correlated locally between DSDP Holes 504, 503A, and 495, using species events associated with the new Dictyocha pulchella Subzone and Dictyocha angulata Subzone. Silicoflagellate relative paleotemperature values show major warming at 4.7 to 5.0 Ma (Cores 45-48), 3.4 to 3.8 Ma (Cores 32-33), 1.5 to 1.7 Ma (Cores 12-16), and 0.5 to 0.8 Ma (Cores 3-6). Major coolings occurred at 5.0 to 5.1 Ma (Core 51), 3.9 to 4.4 Ma (Cores 38-44), and 1.0 to 1.3 Ma (Cores 8-10). The appearance of Dictyocha longa is proposed to replace the asperoid/fibuloid ratio reversal as the bottom of the Dictyocha fibula Zone, because the non-evolutionary ratio reverses several times in the upper Miocene of Hole 503A, and at least once in Hole 504. Three new Pliocene silicoflagellates are defined: Dictyocha concinna Bukry, n. sp., D. helix Bukry, n. sp., and D. tamarae Bukry, n. sp. completed Bukry, David

dbukry@usgs.gov

principalInvestigator DSDP Deep Sea Drilling Project theme 1995-01-01 creation PANGAEA

info@pangaea.de

https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-3.0: Creative Commons Attribution 3.0 Unported textTable und geoscientificInformation -83.7322 -83.7322 1.2263 1.2263 1979-09-20T00:00:00 1979-09-20T00:00:00 22.2 234.3 Sediment depth is given in mbsf. #0 = recorded after count; #1 or #<1 = probably a reworked occurrence. Sample code/label thematicClassification DSDP/ODP/IODP sample designation DEPTH, sediment/rock physicalMeasurement m m Epoch thematicClassification Silicoflagellate zone thematicClassification Silicoflagellate zone thematicClassification Subzone Dictyocha aculeata physicalMeasurement Counting, silicoflagellates % % Dictyocha angulata physicalMeasurement Counting, silicoflagellates % % Dictyocha aspera physicalMeasurement Counting, silicoflagellates % % Dictyocha aspera aspera physicalMeasurement Counting, silicoflagellates % % Dictyocha aspera clinata s. ampl. physicalMeasurement Counting, silicoflagellates % % Dictyocha brevispina physicalMeasurement Counting, silicoflagellates % % Dictyocha brevispina physicalMeasurement Counting, silicoflagellates; Giant asymmetric % % Dictyocha brevispina physicalMeasurement Counting, silicoflagellates; No bar % % Dictyocha calida ampliata physicalMeasurement Counting, silicoflagellates % % Dictyocha calida calida physicalMeasurement Counting, silicoflagellates % % Dictyocha concavata physicalMeasurement Counting, silicoflagellates; #1 = #<1 % % Dictyocha concinna physicalMeasurement Counting, silicoflagellates % % Dictyocha delicata physicalMeasurement Counting, silicoflagellates % % Dictyocha delicata var. bisecta physicalMeasurement Counting, silicoflagellates % % Dictyocha fibula s. ampl. physicalMeasurement Counting, silicoflagellates % % Dictyocha helix physicalMeasurement Counting, silicoflagellates % % Dictyocha longa physicalMeasurement Counting, silicoflagellates % % Dictyocha longa var. paxilla physicalMeasurement Counting, silicoflagellates % % Dictyocha neonautica var. cocosensis physicalMeasurement Counting, silicoflagellates % % Dictyocha ornata africana physicalMeasurement Counting, silicoflagellates % % Dictyocha perfecta physicalMeasurement Counting, silicoflagellates; #1 = #<1 % % Dictyocha perlaevis flexatella physicalMeasurement Counting, silicoflagellates % % Dictyocha perlaevis perlaevis physicalMeasurement Counting, silicoflagellates % % Dictyocha perlaevis physicalMeasurement Counting, silicoflagellates % % Dictyocha perlaevis perlaevis s. ampl. physicalMeasurement Counting, silicoflagellates % % Dictyocha pulchella physicalMeasurement Counting, silicoflagellates % % Dictyocha sp. physicalMeasurement Counting, silicoflagellates; sp. aff. Dictyocha aegea % % Dictyocha sp. physicalMeasurement Counting, silicoflagellates; sp. aff. Dictyocha aculeata % % Dictyocha sp. physicalMeasurement Counting, silicoflagellates; sp. aff. Dictyocha delicata % % Dictyocha sp. physicalMeasurement Counting, silicoflagellates; sp. aff. Dictyocha ornata ornata % % Dictyocha sp. physicalMeasurement Counting, silicoflagellates; sp. aff. Dictyocha pulchella (angular); #1 = #<1 % % Dictyocha sp. physicalMeasurement Counting, silicoflagellates; sp. aff. Dictyocha pumila % % Dictyocha sp. physicalMeasurement Counting, silicoflagellates; sp. aff. Dictyocha stapedia aspinosa % % Dictyocha sp. physicalMeasurement Counting, silicoflagellates; sp. aff. Dictyocha subaculeata % % Dictyocha sp. physicalMeasurement Counting, silicoflagellates; sp. aff. Dictyocha subclinata % % Dictyocha sp. physicalMeasurement Counting, silicoflagellates; sp. aff. Dictyocha transenna (spined) % % Dictyocha sp. physicalMeasurement Counting, silicoflagellates; sp. cf. Dictyocha angulata % % Dictyocha spp. physicalMeasurement Counting, silicoflagellates % % Dictyocha spp. physicalMeasurement Counting, silicoflagellates; Indeterminate % % Dictyocha stapedia aspinosa physicalMeasurement Counting, silicoflagellates % % Dictyocha stapedia stapedia physicalMeasurement Counting, silicoflagellates % % Dictyocha subaculeata physicalMeasurement Counting, silicoflagellates % % Dictyocha tamarae physicalMeasurement Counting, silicoflagellates % % Dictyocha transenna physicalMeasurement Counting, silicoflagellates % % Dictyocha varia physicalMeasurement Counting, silicoflagellates % % Dictyocha vexativa physicalMeasurement Counting, silicoflagellates % % Distephanus boliviensis physicalMeasurement Counting, silicoflagellates; # = divided ring % % Distephanus crux bispinosus physicalMeasurement Counting, silicoflagellates % % Distephanus crux carolae physicalMeasurement Counting, silicoflagellates % % Distephanus crux crux s. ampl. physicalMeasurement Counting, silicoflagellates % % Distephanus major physicalMeasurement Counting, silicoflagellates % % Distephanus mesophthalmus physicalMeasurement Counting, silicoflagellates % % Distephanus polyactis physicalMeasurement Counting, silicoflagellates % % Distephanus quinquangellus physicalMeasurement Counting, silicoflagellates % % Distephanus sp. physicalMeasurement Counting, silicoflagellates; sp. A (Bukry, 1979) % % Distephanus sp. physicalMeasurement Counting, silicoflagellates; sp. aff. Distephanus mesophthalmus % % Distephanus sp. physicalMeasurement Counting, silicoflagellates; sp. cf. Distephanus frugalis % % Distephanus speculum bispicatus physicalMeasurement Counting, silicoflagellates % % Distephanus speculum elongatus physicalMeasurement Counting, silicoflagellates % % Distephanus speculum forma coronata physicalMeasurement Counting, silicoflagellates % % Distephanus speculum minutus physicalMeasurement Counting, silicoflagellates % % Distephanus speculum speculum physicalMeasurement Counting, silicoflagellates % % Distephanus speculum tenuis physicalMeasurement Counting, silicoflagellates % % Distephanus spp. physicalMeasurement Counting, silicoflagellates; Cruxoid % % Mesocena circulus physicalMeasurement Counting, silicoflagellates % % Mesocena diodon nodosa physicalMeasurement Counting, silicoflagellates % % Mesocena quadrangula physicalMeasurement Counting, silicoflagellates; # = distorted; #1 = #<1 % % Mesocena quadrangula physicalMeasurement Counting, silicoflagellates; Transennoid % % Mesocena sp. physicalMeasurement Counting, silicoflagellates; sp. cf. Mesocena circulus % % Mesocena triodon physicalMeasurement Counting, silicoflagellates % % Octactis pulchra physicalMeasurement Counting, silicoflagellates % % - thematicClassification Calculated; relative Paleotemperature Specimen count physicalMeasurement Counting, silicoflagellates # # text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.816237?format=textfile download dataset The data set was checked for completeness, correctness, and consistency of metainformation. Validity of used methods was checked and - if applicable - precision and range of data. EVENT LABEL: 69-504 * LATITUDE: 1.226300 * LONGITUDE: -83.732200 * DATE/TIME: 1979-09-20T00:00:00 * ELEVATION: -3460.0 m * Penetration: 237 m * Recovery: 10 m * CAMPAIGN: Leg69 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 1979-09-20T00:00:00