de.pangaea.dataset804665 und dataset PANGAEA

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https://www.pangaea.de/ information pointOfContact 2026-08-10T15:14:27Z https://doi.pangaea.de/10.1594/PANGAEA.804665 1985-01-01 publication https://doi.org/10.1594/PANGAEA.804665 Gieskes, Joris M

jgieskes@ucsd.edu

author Johnston, Kirk author Boehm, Marcus author PANGAEA

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https://www.pangaea.de/ information publisher tableDigital Supplement to: Gieskes, Joris M; Johnston, Kirk; Boehm, Marcus (1985): Appendix: Interstitial water studies, Leg 66. In: von Heune, R; Aubouin, J; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 84, 961-967, https://doi.org/10.2973/dsdp.proc.84.app.1985 During Leg 66, a transect was drilled across the Middle America Trench off Mexico. In this report, interstitial water analyses for Sites 487 (on oceanic crust), 490, 491, and 492 (continental slope apron), and 493 (upper continental slope) are presented. All sites are characterized by high sedimentation rates, and as a result sulfate reduction and methane generation processes are very important. At Sites 490 through 492 decreases in chlorinity are evidence of the presence of gas hydrates. At Site 493 a sharp increase in dissolved calcium and the complete depletion of dissolved magnesium just above basement indicate that weathering of continental crust is still an ongoing process. completed Gieskes, Joris M

jgieskes@ucsd.edu

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 -99.1753 -98.9255 15.8535 16.381 1979-03-24T00:00:00 1979-04-24T00:00:00 3.0 620.0 DEPTH, sediment [m] is given in mbsf. Event label thematicClassification Latitude of event thematicClassification Longitude of event thematicClassification Elevation of event physicalMeasurement m m Sample code/label thematicClassification DSDP/ODP/IODP sample designation DEPTH, sediment/rock physicalMeasurement m m Alkalinity, total physicalMeasurement Titration; Unit in paper meq/dm**3 mmol(Eq)/l mmol(Eq)/l Calcium physicalMeasurement Titration mmol/l mmol/l Magnesium physicalMeasurement Titration mmol/l mmol/l Chloride physicalMeasurement Titration mg/kg mg/kg Sulfate physicalMeasurement Titration mmol/l mmol/l Ammonium physicalMeasurement Titration µmol/l µmol/l Silicon physicalMeasurement Titration µmol/l µmol/l text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.804665?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: 66-487 * LATITUDE: 15.853500 * LONGITUDE: -99.175300 * DATE/TIME: 1979-03-24T00:00:00 * ELEVATION: -4764.0 m * PENETRATION: 190.5 m * RECOVERY: 119.6 m * LOCATION: North Pacific/TRENCH * CAMPAIGN: Leg66 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 20 cores; 180.5 m cored; 9.5 m drilled; 66.3 % recovery 1979-03-24T00:00:00 EVENT LABEL: 66-490 * LATITUDE: 16.159300 * LONGITUDE: -99.056500 * DATE/TIME: 1979-04-08T00:00:00 * ELEVATION: -1761.0 m * PENETRATION: 588.5 m * RECOVERY: 343.4 m * LOCATION: North Pacific/TRANSITION ZONE * CAMPAIGN: Leg66 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 63 cores; 577 m cored; 9 m drilled; 59.5 % recovery 1979-04-08T00:00:00 EVENT LABEL: 66-491 * LATITUDE: 16.029000 * LONGITUDE: -98.972200 * DATE/TIME: 1979-04-13T00:00:00 * ELEVATION: -2883.0 m * PENETRATION: 542 m * RECOVERY: 389.4 m * LOCATION: North Pacific/SLOPE * CAMPAIGN: Leg66 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 58 cores; 532.5 m cored; 4.5 m drilled; 73.1 % recovery 1979-04-13T00:00:00 EVENT LABEL: 66-492 * LATITUDE: 16.078800 * LONGITUDE: -98.945300 * DATE/TIME: 1979-04-20T00:00:00 * ELEVATION: -1935.0 m * PENETRATION: 279 m * RECOVERY: 177.5 m * LOCATION: North Pacific/SLOPE * CAMPAIGN: Leg66 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 29 cores; 260.2 m cored; 0 m drilled; 68.2 % recovery 1979-04-20T00:00:00 EVENT LABEL: 66-493 * LATITUDE: 16.381000 * LONGITUDE: -98.925500 * DATE/TIME: 1979-04-24T00:00:00 * ELEVATION: -645.0 m * PENETRATION: 670.5 m * RECOVERY: 330.8 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg66 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 56 cores; 518.5 m cored; 28.5 m drilled; 63.8 % recovery 1979-04-24T00:00:00 EVENT LABEL: 66-493A * LATITUDE: 16.381000 * LONGITUDE: -98.925500 * DATE/TIME: 1979-04-24T00:00:00 * ELEVATION: -645.0 m * PENETRATION: 12 m * RECOVERY: 7.6 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg66 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 2 cores; 12 m cored; 0 m drilled; 63.3 % recovery 1979-04-24T00:00:00 EVENT LABEL: 66-493B * LATITUDE: 16.381000 * LONGITUDE: -98.925500 * DATE/TIME: 1979-04-24T00:00:00 * ELEVATION: -645.0 m * PENETRATION: 126 m * RECOVERY: 59.4 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg66 * BASIS: Glomar Challenger * METHOD/DEVICE: Drilling/drill rig 12 cores; 114 m cored; 0 m drilled; 52.1 % recovery 1979-04-24T00:00:00