Basin-scale Arabian Sea denitrification reconstruction based on δ¹⁵N records, Arabian Sea Stack
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2026
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| _version_ | 1867172417999208448 |
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| author | Singh, Dharmendra Pratap |
| author_facet | Singh, Dharmendra Pratap |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | The new δ¹⁵N record of sediment core SSD004_GC11 is combined with published regional datasets to produce a basin-wide Arabian Sea denitrification stack. Spectral and cross-wavelet analyses reveal dominant orbital-scale variability, with stronger obliquity influence in the southern basin and precession dominance in northern records. Coherent variability between δ¹⁵N records and atmospheric N₂O concentrations highlights orbital forcing as a key driver of long-term nitrogen cycling and greenhouse gas variability. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_993904 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Basin-scale Arabian Sea denitrification reconstruction based on δ¹⁵N records, Arabian Sea Stack Singh, Dharmendra Pratap 117-722; 355-U1456; AGE; Arabian Sea; calculated, 1 sigma; CALYPSO; Calypso Corer; Calypso square corer; CASQ; CHAMAK; COMPCORE; Composite Core; d15N; Exp355; GC; GOA4; GOA6; Gravity corer; Gravity corer (Kiel type); Gulf of Oman; Indian Ocean; Joides Resolution; KAL; Kasten corer; KL; KL-74, AS-12; Leg117; M74/1b; M74/1b_960-1; Marion Dufresne (1972); Marion Dufresne (1995); MD04-2876; MD04-2879CQ; MD10; MD143; MD76-131; ME33-EAST; ME33-NAST; Meteor (1986); NIOP_905; NIOP-D2; NIOP-D2_455-1; NIOP-D2_464-1; Oman Margin; OSIRIS II; Pakistan continental margin; PAKOMIN; PC; Piston corer; Piston corer (BGR type); RC27; RC27-14; RC27-23; RC27-24; RC27-61; Robert Conrad; SEDCO; Sedimentary geochemistry; Sediment corer; Sindhu Sadhana; SK117_GC_08; SK126-GC39; SL; SL 167; SO42; SO42-74KL; SO90; SO90_111KL; Sonne; SS4018G; SSD004_GC11; Stack; Stacked; TN; Tyro; δ15N, bulk sediment; δ15N, standard deviation The new δ¹⁵N record of sediment core SSD004_GC11 is combined with published regional datasets to produce a basin-wide Arabian Sea denitrification stack. Spectral and cross-wavelet analyses reveal dominant orbital-scale variability, with stronger obliquity influence in the southern basin and precession dominance in northern records. Coherent variability between δ¹⁵N records and atmospheric N₂O concentrations highlights orbital forcing as a key driver of long-term nitrogen cycling and greenhouse gas variability. |
| title | Basin-scale Arabian Sea denitrification reconstruction based on δ¹⁵N records, Arabian Sea Stack |
| topic | 117-722; 355-U1456; AGE; Arabian Sea; calculated, 1 sigma; CALYPSO; Calypso Corer; Calypso square corer; CASQ; CHAMAK; COMPCORE; Composite Core; d15N; Exp355; GC; GOA4; GOA6; Gravity corer; Gravity corer (Kiel type); Gulf of Oman; Indian Ocean; Joides Resolution; KAL; Kasten corer; KL; KL-74, AS-12; Leg117; M74/1b; M74/1b_960-1; Marion Dufresne (1972); Marion Dufresne (1995); MD04-2876; MD04-2879CQ; MD10; MD143; MD76-131; ME33-EAST; ME33-NAST; Meteor (1986); NIOP_905; NIOP-D2; NIOP-D2_455-1; NIOP-D2_464-1; Oman Margin; OSIRIS II; Pakistan continental margin; PAKOMIN; PC; Piston corer; Piston corer (BGR type); RC27; RC27-14; RC27-23; RC27-24; RC27-61; Robert Conrad; SEDCO; Sedimentary geochemistry; Sediment corer; Sindhu Sadhana; SK117_GC_08; SK126-GC39; SL; SL 167; SO42; SO42-74KL; SO90; SO90_111KL; Sonne; SS4018G; SSD004_GC11; Stack; Stacked; TN; Tyro; δ15N, bulk sediment; δ15N, standard deviation |
| url | https://doi.org/10.1594/PANGAEA.993904 |