(Table 1) Stable nitrogen isotopes of ammonium in interstitial waters from ODP Site 164-997
Ammonium (NH4+) concentration profiles in piston-core sediments of the Carolina Rise and Blake Ridge generally have linear concentration profiles within the sulfate reduction zone (Borowski, 1998). Deep Sea Drilling Project (DSDP) Site 533, located on the Blake Ridge, also displayed a linear ammoniu...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.804017 2023-05-15T17:36:45+02:00 (Table 1) Stable nitrogen isotopes of ammonium in interstitial waters from ODP Site 164-997 Borowski, Walter S Paull, Charles K MEDIAN LATITUDE: 31.843200 * MEDIAN LONGITUDE: -75.468550 * SOUTH-BOUND LATITUDE: 31.843100 * WEST-BOUND LONGITUDE: -75.468600 * NORTH-BOUND LATITUDE: 31.843300 * EAST-BOUND LONGITUDE: -75.468500 * DATE/TIME START: 1995-12-06T12:35:00 * DATE/TIME END: 1995-12-17T07:25:00 * MINIMUM DEPTH, sediment/rock: 16.80 m * MAXIMUM DEPTH, sediment/rock: 687.65 m 2000-12-13 text/tab-separated-values, 18 data points https://doi.pangaea.de/10.1594/PANGAEA.804017 https://doi.org/10.1594/PANGAEA.804017 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.804017 https://doi.org/10.1594/PANGAEA.804017 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Borowski, Walter S; Paull, Charles K (2000): Data Report: Nitrogen isotopic composition of pore-water ammonium, Blake Ridge, Site 997. In: Paull, CK; Matsumoto, R; Wallace, PJ; Dillon, WP (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 164, 1-2, https://doi.org/10.2973/odp.proc.sr.164.213.2000 164-997A 164-997B DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Event label Joides Resolution Leg164 Mass spectrometer VG SIRA Nicaraguan Rise North Atlantic Ocean Ocean Drilling Program ODP Sample code/label δ15N ammonium Dataset 2000 ftpangaea https://doi.org/10.1594/PANGAEA.804017 https://doi.org/10.2973/odp.proc.sr.164.213.2000 2023-01-20T08:59:57Z Ammonium (NH4+) concentration profiles in piston-core sediments of the Carolina Rise and Blake Ridge generally have linear concentration profiles within the sulfate reduction zone (Borowski, 1998). Deep Sea Drilling Project (DSDP) Site 533, located on the Blake Ridge, also displayed a linear ammonium concentration profile through the sulfate reduction zone and the profile linearity continues into the upper methanogenic zone to a depth of ~200 meters below seafloor (mbsf), where the first methane gas hydrates probably occur (Jenden and Gieskes, 1983, doi:10.2973/dsdp.proc.76.114.1983; Kvenvolden and Barnard, 1983, doi:10.2973/dsdp.proc.76.106.1983). Sediments from the Ocean Drilling Program (ODP) Leg 164 deep holes (Sites 994, 995, and 997) also exhibit linear ammonium profiles above the top of the gas hydrate zone (~200 mbsf) (Paull, Matsumoto, Wallace, et al., 1996, doi:10.2973/odp.proc.ir.164.1996). We hypothesized that a possible cause of linear ammonium profiles was diffusion of ammonium from a concentrated ammonium source at depth. We further reasoned that if this ammonium were produced by microbial fermentation reactions at depth, that a comparison of the nitrogen isotopic composition of sedimentary organic nitrogen and the nitrogen with pore-water ammonium would test this hypothesis. Convergence with depth of d15N values of the nitrogen source (sedimentary organic matter) and the nitrogen product (dissolved NH4+) would strongly suggest that ammonium was produced within a particular depth zone by microbial fermentation reactions. Here, we report d15N values of pore-water ammonium from selected interstitial water (IW) samples from Site 997, sampled during ODP Leg 164. Dataset North Atlantic PANGAEA - Data Publisher for Earth & Environmental Science Sira ENVELOPE(8.107,8.107,62.667,62.667) ENVELOPE(-75.468600,-75.468500,31.843300,31.843100) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
164-997A 164-997B DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Event label Joides Resolution Leg164 Mass spectrometer VG SIRA Nicaraguan Rise North Atlantic Ocean Ocean Drilling Program ODP Sample code/label δ15N ammonium |
spellingShingle |
164-997A 164-997B DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Event label Joides Resolution Leg164 Mass spectrometer VG SIRA Nicaraguan Rise North Atlantic Ocean Ocean Drilling Program ODP Sample code/label δ15N ammonium Borowski, Walter S Paull, Charles K (Table 1) Stable nitrogen isotopes of ammonium in interstitial waters from ODP Site 164-997 |
topic_facet |
164-997A 164-997B DEPTH sediment/rock DRILL Drilling/drill rig DSDP/ODP/IODP sample designation Event label Joides Resolution Leg164 Mass spectrometer VG SIRA Nicaraguan Rise North Atlantic Ocean Ocean Drilling Program ODP Sample code/label δ15N ammonium |
description |
Ammonium (NH4+) concentration profiles in piston-core sediments of the Carolina Rise and Blake Ridge generally have linear concentration profiles within the sulfate reduction zone (Borowski, 1998). Deep Sea Drilling Project (DSDP) Site 533, located on the Blake Ridge, also displayed a linear ammonium concentration profile through the sulfate reduction zone and the profile linearity continues into the upper methanogenic zone to a depth of ~200 meters below seafloor (mbsf), where the first methane gas hydrates probably occur (Jenden and Gieskes, 1983, doi:10.2973/dsdp.proc.76.114.1983; Kvenvolden and Barnard, 1983, doi:10.2973/dsdp.proc.76.106.1983). Sediments from the Ocean Drilling Program (ODP) Leg 164 deep holes (Sites 994, 995, and 997) also exhibit linear ammonium profiles above the top of the gas hydrate zone (~200 mbsf) (Paull, Matsumoto, Wallace, et al., 1996, doi:10.2973/odp.proc.ir.164.1996). We hypothesized that a possible cause of linear ammonium profiles was diffusion of ammonium from a concentrated ammonium source at depth. We further reasoned that if this ammonium were produced by microbial fermentation reactions at depth, that a comparison of the nitrogen isotopic composition of sedimentary organic nitrogen and the nitrogen with pore-water ammonium would test this hypothesis. Convergence with depth of d15N values of the nitrogen source (sedimentary organic matter) and the nitrogen product (dissolved NH4+) would strongly suggest that ammonium was produced within a particular depth zone by microbial fermentation reactions. Here, we report d15N values of pore-water ammonium from selected interstitial water (IW) samples from Site 997, sampled during ODP Leg 164. |
format |
Dataset |
author |
Borowski, Walter S Paull, Charles K |
author_facet |
Borowski, Walter S Paull, Charles K |
author_sort |
Borowski, Walter S |
title |
(Table 1) Stable nitrogen isotopes of ammonium in interstitial waters from ODP Site 164-997 |
title_short |
(Table 1) Stable nitrogen isotopes of ammonium in interstitial waters from ODP Site 164-997 |
title_full |
(Table 1) Stable nitrogen isotopes of ammonium in interstitial waters from ODP Site 164-997 |
title_fullStr |
(Table 1) Stable nitrogen isotopes of ammonium in interstitial waters from ODP Site 164-997 |
title_full_unstemmed |
(Table 1) Stable nitrogen isotopes of ammonium in interstitial waters from ODP Site 164-997 |
title_sort |
(table 1) stable nitrogen isotopes of ammonium in interstitial waters from odp site 164-997 |
publisher |
PANGAEA |
publishDate |
2000 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.804017 https://doi.org/10.1594/PANGAEA.804017 |
op_coverage |
MEDIAN LATITUDE: 31.843200 * MEDIAN LONGITUDE: -75.468550 * SOUTH-BOUND LATITUDE: 31.843100 * WEST-BOUND LONGITUDE: -75.468600 * NORTH-BOUND LATITUDE: 31.843300 * EAST-BOUND LONGITUDE: -75.468500 * DATE/TIME START: 1995-12-06T12:35:00 * DATE/TIME END: 1995-12-17T07:25:00 * MINIMUM DEPTH, sediment/rock: 16.80 m * MAXIMUM DEPTH, sediment/rock: 687.65 m |
long_lat |
ENVELOPE(8.107,8.107,62.667,62.667) ENVELOPE(-75.468600,-75.468500,31.843300,31.843100) |
geographic |
Sira |
geographic_facet |
Sira |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Supplement to: Borowski, Walter S; Paull, Charles K (2000): Data Report: Nitrogen isotopic composition of pore-water ammonium, Blake Ridge, Site 997. In: Paull, CK; Matsumoto, R; Wallace, PJ; Dillon, WP (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 164, 1-2, https://doi.org/10.2973/odp.proc.sr.164.213.2000 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.804017 https://doi.org/10.1594/PANGAEA.804017 |
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.804017 https://doi.org/10.2973/odp.proc.sr.164.213.2000 |
_version_ |
1766136340067385344 |