de.pangaea.dataset774700 und dataset PANGAEA

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https://www.pangaea.de/ information pointOfContact 2026-05-01T03:29:51Z https://doi.pangaea.de/10.1594/PANGAEA.774700 2006-01-01 publication https://doi.org/10.1594/PANGAEA.774700 Tomaru, Hitoshi https://orcid.org/0000-0002-7555-4177 information author Matsumoto, R author Torres, Marta E

Marta.Torres@oregonstate.edu

https://orcid.org/0000-0001-7284-733X information author Borowski, Walter S author PANGAEA

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https://www.pangaea.de/ information publisher tableDigital Supplement to: Tomaru, Hitoshi; Matsumoto, R; Torres, Marta E; Borowski, Walter S (2006): Geological and geochemical constraints on the isotopic composition of interstitial waters from the Hydrate Ridge region, Cascadia Continental Margin. In: Tréhu, AM; Bohrmann, G; Torres, ME; Colwell, FS (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 204, 1-20, https://doi.org/10.2973/odp.proc.sr.204.109.2006 The isotopic compositions of interstitial waters collected from Hydrate Ridge during Ocean Drilling Program Leg 204 were measured to evaluate the fluid evolution of this accretionary prism. At shallow depths, the dissolved Cl- concentrations and dD and d18O values of the interstitial water reflect changes in the salinity and the isotopic compositions of seawater from the Last Glacial Maximum to the present. The presence of disseminated gas hydrates, which is well identified by discrete low Cl- anomalies within the gas hydrate stability zone, is accompanied by high dD and d18O values of the freshened fluids. This is consistent with incorporation of heavy isotopes into the gas hydrate lattice, which is also apparent in the signals observed at the ridge summit. Here, massive gas hydrate formation in the upper 20 meters below seafloor leads the formation of brines with dissolved Cl- concentrations as high as 1400 mM. The interstitial waters sampled near massive gas hydrates at the ridge summit are extremely depleted in D and 18O. Clay mineral dehydration within the deep prism results in a progressive decrease in Cl- and dD with depth. Dehydration temperature estimates based on those data likely suggest a progressive increase in the temperature of isotopic fractionation between clay and water with distance from the prism toe. The oxygen isotope data probably reflect the combined effects of clay dehydration, carbonate precipitation, and alteration of oceanic basement; however, there are not enough data to constrain the relative contribution of these processes to the observed signals. completed Tomaru, Hitoshi https://orcid.org/0000-0002-7555-4177 information principalInvestigator ODP Ocean Drilling Program 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 -125.1525 -125.07393000000002 44.56843 44.5863 2002-07-13T01:00:00 2002-09-01T00:00:00 0.0 531.12 Event label thematicClassification Sample code/label thematicClassification DSDP/ODP/IODP sample designation DEPTH, sediment/rock physicalMeasurement mbsf m m δ Deuterium physicalMeasurement Mass spectrometer, Finnigan, MAT 252; Analytical precision is better than ±0.5 per mil ‰ SMOW ‰ SMOW δ18O, water physicalMeasurement Mass spectrometer, Finnigan, MAT 252; Analytical precision is better than ±0.15 per mil ‰ SMOW ‰ SMOW Sample comment thematicClassification text/tab-separated-values unknown https://doi.pangaea.de/10.1594/PANGAEA.774700?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: 204-1244B * LATITUDE: 44.586160 * LONGITUDE: -125.119860 * DATE/TIME START: 2002-07-13T01:00:00 * DATE/TIME END: 2002-07-13T12:45:00 * ELEVATION: -896.0 m * PENETRATION: 54.1 m * RECOVERY: 56.85 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 6 cores; 54.1 m cored; 0 m drilled; 105.1 % recovery 2002-07-13T01:00:00 EVENT LABEL: 204-1244C * LATITUDE: 44.586300 * LONGITUDE: -125.119830 * DATE/TIME START: 2002-07-13T12:45:00 * DATE/TIME END: 2002-07-16T05:30:00 * ELEVATION: -895.1 m * PENETRATION: 333.5 m * RECOVERY: 315.5 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 39 cores; 332 m cored; 1.5 m drilled; 95 % recovery 2002-07-13T12:45:00 EVENT LABEL: 204-1244E * LATITUDE: 44.586180 * LONGITUDE: -125.119530 * DATE/TIME START: 2002-08-18T23:00:00 * DATE/TIME END: 2002-08-22T01:45:00 * ELEVATION: -893.3 m * PENETRATION: 250 m * RECOVERY: 137.73 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 19 cores; 135.8 m cored; 114.2 m drilled; 101.4 % recovery 2002-08-18T23:00:00 EVENT LABEL: 204-1245B * LATITUDE: 44.585980 * LONGITUDE: -125.149100 * DATE/TIME START: 2002-08-06T07:15:00 * DATE/TIME END: 2002-08-09T15:45:00 * ELEVATION: -869.7 m * PENETRATION: 473.7 m * RECOVERY: 418.02 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 53 cores; 471.7 m cored; 2 m drilled; 88.6 % recovery 2002-08-06T07:15:00 EVENT LABEL: 204-1245C * LATITUDE: 44.586160 * LONGITUDE: -125.148850 * DATE/TIME START: 2002-08-09T15:45:00 * DATE/TIME END: 2002-08-11T00:30:00 * ELEVATION: -868.6 m * PENETRATION: 201.7 m * RECOVERY: 185.31 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 29 cores; 198.7 m cored; 3 m drilled; 93.3 % recovery 2002-08-09T15:45:00 EVENT LABEL: 204-1245D * LATITUDE: 44.586150 * LONGITUDE: -125.148850 * DATE/TIME START: 2002-08-11T00:30:00 * DATE/TIME END: 2002-08-11T04:00:00 * ELEVATION: -870.1 m * PENETRATION: 24 m * RECOVERY: 24.82 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 3 cores; 24 m cored; 0 m drilled; 103.4 % recovery 2002-08-11T00:30:00 EVENT LABEL: 204-1245E * LATITUDE: 44.586160 * LONGITUDE: -125.149350 * DATE/TIME START: 2002-08-11T04:00:00 * DATE/TIME END: 2002-08-16T07:15:00 * ELEVATION: -869.5 m * PENETRATION: 540.3 m * RECOVERY: 18.48 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 8 cores; 66.6 m cored; 473.7 m drilled; 27.7 % recovery 2002-08-11T04:00:00 EVENT LABEL: 204-1246B * LATITUDE: 44.586060 * LONGITUDE: -125.135380 * DATE/TIME START: 2002-08-11T04:00:00 * DATE/TIME END: 2002-08-11T22:45:00 * ELEVATION: -849.4 m * PENETRATION: 136.7 m * RECOVERY: 135.38 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 16 cores; 136.7 m cored; 0 m drilled; 99 % recovery 2002-08-11T04:00:00 EVENT LABEL: 204-1247B * LATITUDE: 44.577650 * LONGITUDE: -125.151280 * DATE/TIME START: 2002-08-22T06:45:00 * DATE/TIME END: 2002-08-24T19:15:00 * ELEVATION: -834.3 m * PENETRATION: 220 m * RECOVERY: 211.98 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 27 cores; 217 m cored; 3 m drilled; 97.7 % recovery 2002-08-22T06:45:00 EVENT LABEL: 204-1248B * LATITUDE: 44.574280 * LONGITUDE: -125.152460 * DATE/TIME START: 2002-08-01T03:00:00 * DATE/TIME END: 2002-08-01T13:45:00 * ELEVATION: -829.6 m * PENETRATION: 17 m * RECOVERY: 7.45 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 3 cores; 17 m cored; 0 m drilled; 43.8 % recovery 2002-08-01T03:00:00 EVENT LABEL: 204-1248C * LATITUDE: 44.574230 * LONGITUDE: -125.152500 * DATE/TIME START: 2002-08-01T13:45:00 * DATE/TIME END: 2002-08-02T12:30:00 * ELEVATION: -829.6 m * PENETRATION: 149 m * RECOVERY: 101.44 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 17 cores; 149 m cored; 0 m drilled; 68.1 % recovery 2002-08-01T13:45:00 EVENT LABEL: 204-1249B * LATITUDE: 44.570180 * LONGITUDE: -125.147350 * DATE/TIME START: 2002-07-24T09:30:00 * DATE/TIME END: 2002-07-25T13:30:00 * ELEVATION: -778.4 m * PENETRATION: 74.9 m * RECOVERY: 14.01 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 8 cores; 45 m cored; 0 m drilled; 31.1 % recovery 2002-07-24T09:30:00 EVENT LABEL: 204-1249C * LATITUDE: 44.570610 * LONGITUDE: -125.147350 * DATE/TIME START: 2002-07-25T13:30:00 * DATE/TIME END: 2002-07-26T11:45:00 * ELEVATION: -778.4 m * PENETRATION: 90 m * RECOVERY: 58.97 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 14 cores; 88.5 m cored; 1.5 m drilled; 66.6 % recovery 2002-07-25T13:30:00 EVENT LABEL: 204-1249D * LATITUDE: 44.570360 * LONGITUDE: -125.147280 * DATE/TIME START: 2002-08-04T22:30:00 * DATE/TIME END: 2002-08-05T03:45:00 * ELEVATION: -777.2 m * PENETRATION: 18.5 m * RECOVERY: 4.78 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 3 cores; 16.5 m cored; 2 m drilled; 29 % recovery 2002-08-04T22:30:00 EVENT LABEL: 204-1249F * LATITUDE: 44.570530 * LONGITUDE: -125.147300 * DATE/TIME START: 2002-08-05T08:30:00 * DATE/TIME END: 2002-08-06T07:15:00 * ELEVATION: -777.2 m * PENETRATION: 90 m * RECOVERY: 57.37 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 16 cores; 82.5 m cored; 7.5 m drilled; 69.5 % recovery 2002-08-05T08:30:00 EVENT LABEL: 204-1250C * LATITUDE: 44.568780 * LONGITUDE: -125.150300 * DATE/TIME START: 2002-08-02T12:30:00 * DATE/TIME END: 2002-08-03T17:00:00 * ELEVATION: -795.8 m * PENETRATION: 145 m * RECOVERY: 117.29 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 19 cores; 143 m cored; 2 m drilled; 82 % recovery 2002-08-02T12:30:00 EVENT LABEL: 204-1250D * LATITUDE: 44.568430 * LONGITUDE: -125.150300 * DATE/TIME START: 2002-08-03T17:00:00 * DATE/TIME END: 2002-08-04T19:00:00 * ELEVATION: -795.7 m * PENETRATION: 145 m * RECOVERY: 133.67 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 19 cores; 142 m cored; 3 m drilled; 94.1 % recovery 2002-08-03T17:00:00 EVENT LABEL: 204-1250E * LATITUDE: 44.568530 * LONGITUDE: -125.150280 * DATE/TIME START: 2002-08-04T19:00:00 * DATE/TIME END: 2002-08-04T22:30:00 * ELEVATION: -795.7 m * PENETRATION: 16 m * RECOVERY: 11.93 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 2 cores; 16 m cored; 0 m drilled; 74.6 % recovery 2002-08-04T19:00:00 EVENT LABEL: 204-1250F * LATITUDE: 44.568610 * LONGITUDE: -125.150030 * DATE/TIME START: 2002-08-24T19:15:00 * DATE/TIME END: 2002-08-27T21:30:00 * ELEVATION: -795.4 m * PENETRATION: 180 m * RECOVERY: 69.1 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 13 cores; 77 m cored; 103 m drilled; 89.7 % recovery 2002-08-24T19:15:00 EVENT LABEL: 204-1251B * LATITUDE: 44.570310 * LONGITUDE: -125.073960 * DATE/TIME START: 2002-07-26T11:45:00 * DATE/TIME END: 2002-07-30T02:00:00 * ELEVATION: -1213.3 m * PENETRATION: 445.1 m * RECOVERY: 368.58 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 53 cores; 442.1 m cored; 3 m drilled; 83.4 % recovery 2002-07-26T11:45:00 EVENT LABEL: 204-1251C * LATITUDE: 44.570100 * LONGITUDE: -125.073950 * DATE/TIME START: 2002-07-30T02:00:00 * DATE/TIME END: 2002-07-30T06:30:00 * ELEVATION: -1210.2 m * PENETRATION: 17.6 m * RECOVERY: 13.63 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 2 cores; 17.6 m cored; 0 m drilled; 77.4 % recovery 2002-07-30T02:00:00 EVENT LABEL: 204-1251D * LATITUDE: 44.570100 * LONGITUDE: -125.073950 * DATE/TIME START: 2002-07-30T06:30:00 * DATE/TIME END: 2002-07-31T20:45:00 * ELEVATION: -1210.2 m * PENETRATION: 230.5 m * RECOVERY: 194.4 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 30 cores; 226.5 m cored; 4 m drilled; 85.8 % recovery 2002-07-30T06:30:00 EVENT LABEL: 204-1251E * LATITUDE: 44.570210 * LONGITUDE: -125.073930 * DATE/TIME START: 2002-07-31T20:45:00 * DATE/TIME END: 2002-07-31T22:30:00 * ELEVATION: -1208.8 m * PENETRATION: 9.5 m * RECOVERY: 9.89 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 1 core; 9.5 m cored; 0 m drilled; 104.1 % recovery 2002-07-31T20:45:00 EVENT LABEL: 204-1252A * LATITUDE: 44.586110 * LONGITUDE: -125.092810 * DATE/TIME START: 2002-08-29T21:00:00 * DATE/TIME END: 2002-09-01T00:00:00 * ELEVATION: -1039.2 m * PENETRATION: 259.8 m * RECOVERY: 253.62 m * LOCATION: North Pacific Ocean * CAMPAIGN: Leg204 * BASIS: Joides Resolution * METHOD/DEVICE: Drilling/drill rig 28 cores; 259.8 m cored; 0 m drilled; 97.6 % recovery 2002-08-29T21:00:00