(Table 1) Interstitial water chemistry at DSDP Leg 76 Holes
Low salinities and strong opposing fluctuations between chlorinity and interstitial water d18O and dD characterize the region of gas-hydrate occurrence at Site 533. In addition to the hydrate recovered from 243 m sub-bottom, thin, diffuse layers of hydrate composing about 10% of the total pore space...
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| Format: | Dataset |
| Language: | English |
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PANGAEA
1983
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| Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.809833 https://doi.org/10.1594/PANGAEA.809833 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.809833 |
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openpolar |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.809833 2023-05-15T17:31:20+02:00 (Table 1) Interstitial water chemistry at DSDP Leg 76 Holes Jenden, Peter D Gieskes, Joris M MEDIAN LATITUDE: 30.287767 * MEDIAN LONGITUDE: -75.040433 * SOUTH-BOUND LATITUDE: 28.343300 * WEST-BOUND LONGITUDE: -75.381700 * NORTH-BOUND LATITUDE: 31.260000 * EAST-BOUND LONGITUDE: -74.869800 * DATE/TIME START: 1980-10-13T00:00:00 * DATE/TIME END: 1980-10-21T00:00:00 * MINIMUM DEPTH, sediment/rock: 1 m * MAXIMUM DEPTH, sediment/rock: 1405 m 1983-04-08 text/tab-separated-values, 814 data points https://doi.pangaea.de/10.1594/PANGAEA.809833 https://doi.org/10.1594/PANGAEA.809833 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.809833 https://doi.org/10.1594/PANGAEA.809833 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Jenden, Peter D; Gieskes, Joris M (1983): Chemical and isotopic composition of interstitial water from Deep Sea Drilling Project Sites 533 and 534. In: Sheridan, RE; Gradstein, FM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 76, 453-461, https://doi.org/10.2973/dsdp.proc.76.114.1983 76-533 76-533A 76-534A Alkalinity total Ammonium Calcium Chlorine Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Glomar Challenger Latitude of event Leg76 Lithium Longitude of event Magnesium Mass spectrometry North Atlantic/BASIN North Atlantic/RIDGE pH Potassium Salinity Sample code/label see reference(s) Silicon Strontium Sulfate δ18O water δ Deuterium Dataset 1983 ftpangaea https://doi.org/10.1594/PANGAEA.809833 https://doi.org/10.2973/dsdp.proc.76.114.1983 2023-01-20T09:00:57Z Low salinities and strong opposing fluctuations between chlorinity and interstitial water d18O and dD characterize the region of gas-hydrate occurrence at Site 533. In addition to the hydrate recovered from 243 m sub-bottom, thin, diffuse layers of hydrate composing about 10% of the total pore space may have been cored around 290 m. Decomposition during recovery could account for the high oxygen isotope value (+2.80 per mil) and low chlorinity (17.21 g/kg) observed at this depth. High alkalinity and dissolved ammonia (71 meq/l and 33 mM, respectively) indicate substantial microbial activity. Chlorinity gradually increases with depth in the 1600-m-thick sediment column at Site 534, perhaps due to deepseated alteration-hydration reactions or to the presence of nearby evaporites. d18O and dD decrease with depth and are well correlated, suggesting that a common mechanism is fractionating both. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science ENVELOPE(-75.381700,-74.869800,31.260000,28.343300) |
| institution |
Open Polar |
| collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
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ftpangaea |
| language |
English |
| topic |
76-533 76-533A 76-534A Alkalinity total Ammonium Calcium Chlorine Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Glomar Challenger Latitude of event Leg76 Lithium Longitude of event Magnesium Mass spectrometry North Atlantic/BASIN North Atlantic/RIDGE pH Potassium Salinity Sample code/label see reference(s) Silicon Strontium Sulfate δ18O water δ Deuterium |
| spellingShingle |
76-533 76-533A 76-534A Alkalinity total Ammonium Calcium Chlorine Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Glomar Challenger Latitude of event Leg76 Lithium Longitude of event Magnesium Mass spectrometry North Atlantic/BASIN North Atlantic/RIDGE pH Potassium Salinity Sample code/label see reference(s) Silicon Strontium Sulfate δ18O water δ Deuterium Jenden, Peter D Gieskes, Joris M (Table 1) Interstitial water chemistry at DSDP Leg 76 Holes |
| topic_facet |
76-533 76-533A 76-534A Alkalinity total Ammonium Calcium Chlorine Deep Sea Drilling Project DEPTH sediment/rock DRILL Drilling/drill rig DSDP DSDP/ODP/IODP sample designation Elevation of event Event label Glomar Challenger Latitude of event Leg76 Lithium Longitude of event Magnesium Mass spectrometry North Atlantic/BASIN North Atlantic/RIDGE pH Potassium Salinity Sample code/label see reference(s) Silicon Strontium Sulfate δ18O water δ Deuterium |
| description |
Low salinities and strong opposing fluctuations between chlorinity and interstitial water d18O and dD characterize the region of gas-hydrate occurrence at Site 533. In addition to the hydrate recovered from 243 m sub-bottom, thin, diffuse layers of hydrate composing about 10% of the total pore space may have been cored around 290 m. Decomposition during recovery could account for the high oxygen isotope value (+2.80 per mil) and low chlorinity (17.21 g/kg) observed at this depth. High alkalinity and dissolved ammonia (71 meq/l and 33 mM, respectively) indicate substantial microbial activity. Chlorinity gradually increases with depth in the 1600-m-thick sediment column at Site 534, perhaps due to deepseated alteration-hydration reactions or to the presence of nearby evaporites. d18O and dD decrease with depth and are well correlated, suggesting that a common mechanism is fractionating both. |
| format |
Dataset |
| author |
Jenden, Peter D Gieskes, Joris M |
| author_facet |
Jenden, Peter D Gieskes, Joris M |
| author_sort |
Jenden, Peter D |
| title |
(Table 1) Interstitial water chemistry at DSDP Leg 76 Holes |
| title_short |
(Table 1) Interstitial water chemistry at DSDP Leg 76 Holes |
| title_full |
(Table 1) Interstitial water chemistry at DSDP Leg 76 Holes |
| title_fullStr |
(Table 1) Interstitial water chemistry at DSDP Leg 76 Holes |
| title_full_unstemmed |
(Table 1) Interstitial water chemistry at DSDP Leg 76 Holes |
| title_sort |
(table 1) interstitial water chemistry at dsdp leg 76 holes |
| publisher |
PANGAEA |
| publishDate |
1983 |
| url |
https://doi.pangaea.de/10.1594/PANGAEA.809833 https://doi.org/10.1594/PANGAEA.809833 |
| op_coverage |
MEDIAN LATITUDE: 30.287767 * MEDIAN LONGITUDE: -75.040433 * SOUTH-BOUND LATITUDE: 28.343300 * WEST-BOUND LONGITUDE: -75.381700 * NORTH-BOUND LATITUDE: 31.260000 * EAST-BOUND LONGITUDE: -74.869800 * DATE/TIME START: 1980-10-13T00:00:00 * DATE/TIME END: 1980-10-21T00:00:00 * MINIMUM DEPTH, sediment/rock: 1 m * MAXIMUM DEPTH, sediment/rock: 1405 m |
| long_lat |
ENVELOPE(-75.381700,-74.869800,31.260000,28.343300) |
| genre |
North Atlantic |
| genre_facet |
North Atlantic |
| op_source |
Supplement to: Jenden, Peter D; Gieskes, Joris M (1983): Chemical and isotopic composition of interstitial water from Deep Sea Drilling Project Sites 533 and 534. In: Sheridan, RE; Gradstein, FM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project, Washington (U.S. Govt. Printing Office), 76, 453-461, https://doi.org/10.2973/dsdp.proc.76.114.1983 |
| op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.809833 https://doi.org/10.1594/PANGAEA.809833 |
| op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
| op_rightsnorm |
CC-BY |
| op_doi |
https://doi.org/10.1594/PANGAEA.809833 https://doi.org/10.2973/dsdp.proc.76.114.1983 |
| _version_ |
1766128850140397568 |