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Haggerty, Janet A; Fisher, J Berton (1988): Interstitial water chemistry of ODP Leg 103 sites. PANGAEA, https://doi.org/10.1594/PANGAEA.744003, Supplement to: Haggerty, JA; Fisher, JB (1988): Interstitial water studies of samples from the passive Galicia margin, Northeast Atlantic, Ocean Drilling Program Leg 103. In: Boillot, G; Winterer, EL; et al. (eds.), Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 103, 477-487, https://doi.org/10.2973/odp.proc.sr.103.154.1988

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Abstract:
Interstitial waters were squeezed from strata recovered at Sites 637-641 of ODP Leg 103 on the Galicia margin, along the northwestern Iberian continental margin in the northeast Atlantic. Chemical profiles of Site 638 show the most complexity, which appears to be related to an unconformity in the strata between Cretaceous and Neogene sediments and to rapid deposition of Cretaceous syn-rift sediments upon pre-rift strata. Analyses of waters from all of the Leg 103 sites show generally antithetical trends for calcium and magnesium; calcium increases with depth as magnesium decreases. No calcium-magnesium 'crossover' profiles are observed in these data. Data from Site 637 show an unusual pattern; calcium increases with increasing depth, but magnesium remains relatively constant. Sulfate is either stable or shows an overall decrease with depth, and boron profiles show some structure. At all but one site (Site 638), strontium profiles do not show marked depth structure. The structure of alkalinity and silica profiles is highly site dependent. Bromide profiles are, in general, constant. In nearly every case, observed bromide concentrations are near average seawater values. Relatively low concentrations of iron and manganese are common within the upper 10 m of the sediment sequence and typically are near detection limits at deeper depths
Project(s):
Coverage:
Median Latitude: 42.108205 * Median Longitude: -12.402543 * South-bound Latitude: 42.016700 * West-bound Longitude: -12.863300 * North-bound Latitude: 42.155000 * East-bound Longitude: -12.181700
Date/Time Start: 1985-04-28T18:00:00 * Date/Time End: 1985-06-15T13:30:00
Event(s):
103-637A * Latitude: 42.088300 * Longitude: -12.863300 * Date/Time Start: 1985-04-28T18:00:00 * Date/Time End: 1985-05-04T21:00:00 * Elevation: -5321.0 m * Penetration: 285.6 m * Recovery: 116.31 m * Location: North Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 30 cores; 285.6 m cored; 0 m drilled; 40.7 % recovery
103-638B * Latitude: 42.153300 * Longitude: -12.196700 * Date/Time Start: 1985-05-06T00:15:00 * Date/Time End: 1985-05-12T23:15:00 * Elevation: -4673.0 m * Penetration: 431.1 m * Recovery: 212.87 m * Location: North Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 45 cores; 431.1 m cored; 0 m drilled; 49.4 % recovery
103-638C * Latitude: 42.153300 * Longitude: -12.196700 * Date/Time Start: 1985-06-01T18:00:00 * Date/Time End: 1985-06-03T20:30:00 * Elevation: -4673.0 m * Penetration: 547.2 m * Recovery: 37.7 m * Location: North Atlantic Ocean * Campaign: Leg103 * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 14 cores; 135.2 m cored; 0 m drilled; 27.9 % recovery
Size:
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