de.pangaea.dataset810420 und dataset PANGAEA

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https://www.pangaea.de/ information pointOfContact 2026-05-01T00:21:56Z https://doi.pangaea.de/10.1594/PANGAEA.810420 1984-01-01 publication https://doi.org/10.1594/PANGAEA.810420 Shackleton, Nicholas J http://en.wikipedia.org/wiki/Nicholas_Shackleton information author Hall, Michael A author PANGAEA

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https://www.pangaea.de/ information publisher tableDigital Supplement to: Shackleton, Nicholas J; Hall, Michael A (1984): Carbon isotope data from Leg 74 sediments. In: Moore, TC Jr; Rabinowitz, PD; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 74, 613-619, https://doi.org/10.2973/dsdp.proc.74.116.1984 Carbon and oxygen isotope measurements were made in bulk sediments from the five sites drilled on Leg 74, covering much of the Cenozoic. These stable carbon isotope analyses document a lightening across the Cretaceous/Tertiary boundary (already documented by other workers), with a minimum about 0.2 Ma after the boundary; a trend to very heavy values in the late Paleocene; a lightening near the Paleocene/Eocene boundary to a second minimum early in the early Eocene; more positive values in the remainder of the Eocene with a minor peak immediately below the Eocene/Oligocene boundary, at which there is a lightening trend; a moderately positive peak in the middle Miocene, and a lightening toward the present, where the isotopically lightest values in the Cenozoic are to be found. The carbon isotope variations observed are largely a function of changes in the 13C content of oceanic dissolved inorganic carbon that resulted from alterations in the global carbon budget. Slight differences among sediments of the same age at different sites probably result from diagenetic changes, but do not obscure the major pattern, which has considerable potential value for stratigraphic correlation. completed Shackleton, Nicholas J http://en.wikipedia.org/wiki/Nicholas_Shackleton information principalInvestigator DSDP Deep Sea Drilling Project theme 1995-01-01 creation PANGAEA

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https://www.pangaea.de/ information pointOfContact copyright copyright CC-BY-3.0: Creative Commons Attribution 3.0 Unported textTable und geoscientificInformation 1.7633 2.9853 -29.0707 -28.0415 1980-06-10T00:00:00 1980-07-18T00:00:00 0.1 475.86 Sediment depth is given in mbsf. Ages are estimated as described in Shackleton et al. 1984 (doi:10.2973/dsdp.proc.74.117.1984). Event label thematicClassification Latitude of event thematicClassification Longitude of event thematicClassification Elevation of event physicalMeasurement m m DEPTH, sediment/rock physicalMeasurement m m AGE physicalMeasurement ka BP ka BP δ18O, carbonate physicalMeasurement see reference(s) ‰ PDB ‰ PDB δ13C, carbonate physicalMeasurement see reference(s) ‰ PDB ‰ PDB text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.810420?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: 74-525 * LATITUDE: -29.070700 * LONGITUDE: 2.985300 * DATE/TIME: 1980-06-10T00:00:00 * ELEVATION: -2467.0 m * PENETRATION: 3.6 m * RECOVERY: 3.6 m * LOCATION: South Atlantic/CREST * CAMPAIGN: Leg74 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 1 cores; 3.6 m cored; 0 m drilled; 99.7 % recovery 1980-06-10T00:00:00 EVENT LABEL: 74-525A * LATITUDE: -29.070700 * LONGITUDE: 2.985300 * DATE/TIME: 1980-06-10T00:00:00 * ELEVATION: -2467.0 m * PENETRATION: 678.1 m * RECOVERY: 406.6 m * LOCATION: South Atlantic/CREST * CAMPAIGN: Leg74 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 62 cores; 549.7 m cored; 6 m drilled; 74 % recovery 1980-06-10T00:00:00 EVENT LABEL: 74-527 * LATITUDE: -28.041500 * LONGITUDE: 1.763300 * DATE/TIME: 1980-06-28T00:00:00 * ELEVATION: -4428.0 m * PENETRATION: 384.5 m * RECOVERY: 243.4 m * LOCATION: South Atlantic Ocean * CAMPAIGN: Leg74 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 43 cores; 380 m cored; 4.5 m drilled; 64.1 % recovery 1980-06-28T00:00:00 EVENT LABEL: 74-528 * LATITUDE: -28.524800 * LONGITUDE: 2.324000 * DATE/TIME: 1980-07-04T00:00:00 * ELEVATION: -3800.0 m * PENETRATION: 555 m * RECOVERY: 271.9 m * LOCATION: South Atlantic/RIDGE * CAMPAIGN: Leg74 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 47 cores; 441 m cored; 0 m drilled; 61.7 % recovery 1980-07-04T00:00:00 EVENT LABEL: 74-529 * LATITUDE: -28.930500 * LONGITUDE: 2.768000 * DATE/TIME: 1980-07-18T00:00:00 * ELEVATION: -3043.0 m * PENETRATION: 417 m * RECOVERY: 309.4 m * LOCATION: South Atlantic/SLOPE * CAMPAIGN: Leg74 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 42 cores; 398 m cored; 19 m drilled; 77.7 % recovery 1980-07-18T00:00:00