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Li, Sanzhong; Geldmacher, Jörg; Hauff, Folkmar; Garbe-Schönberg, Carl-Dieter; Yu, Shan; Zhao, Shujuan; Rausch, Svenja (2015): (Table 1) Trace elements, element ratios, isotopic ratios, verage isotope values and calcite precipitaion temperture from different Holes of Site 324. PANGAEA, https://doi.org/10.1594/PANGAEA.855280, Supplement to: Li, S et al. (2014): Composition and timing of carbonate vein precipitation within the igneous basement of the Early Cretaceous Shatsky Rise, NW Pacific. Marine Geology, 357, 321-333, https://doi.org/10.1016/j.margeo.2014.09.046

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Abstract:
Numerous calcium carbonate veins were recovered from the igneous basement of the Early Cretaceous Shatsky Rise during Integrated Ocean Drilling Program (IODP) Expedition 324. The chemical (Sr/Ca, Mg/Ca) and isotopic (87Sr/86Sr, 143Nd/144Nd, delta18O, delta13C) compositions of these veins were determined to constrain the timing of vein formation. A dominant control by seawater chemistry on calcite composition is evident for most vein samples with variable contributions from the basaltic basement. Slightly elevated precipitation temperatures (as inferred from oxygen isotope ratios), indicative of hydrothermal vein formation, are only observed at Site U1350 in the central part of Shatsky Rise. The highest 87Sr/86Sr ratios (least basement influence) of vein samples at each drill site range from 0.70726 to 0.70755 and are believed to reflect the contemporaneous seawater composition during the time of calcite precipitation. In principle, age information can be deduced by correlating these ratios with the global seawater Sr isotope evolution. Since the Sr isotopic composition of seawater has fluctuated three times between the early and mid Cretaceous, no unambiguous precipitation ages can be constrained by this method and vein precipitation could have occurred at any time between ~ 80 and 140 Ma. However, based on combined chemical and isotopic data and correlations of vein composition with formation depth and inferred temperature, we argue for a rather early precipitation of the veins shortly after basement formation at each respective drill site.
Coverage:
Median Latitude: 34.899506 * Median Longitude: 158.992611 * South-bound Latitude: 32.507917 * West-bound Longitude: 158.458783 * North-bound Latitude: 36.115750 * East-bound Longitude: 159.284417
Minimum DEPTH, sediment/rock: m * Maximum DEPTH, sediment/rock: 147 m
Event(s):
324-U1347A * Latitude: 32.507917 * Longitude: 159.234633 * Elevation: -3450.0 m * Recovery: 116.1 m * Campaign: Exp324 (Shatsky Rise) * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 29 cores; 246.5 m cored; 47.1 % average recovery; 157.6 m (CSF-A) Igneous basement depth; 159.9 m Igneous basement cored; 64.2 % Average basement recovery
324-U1349A * Latitude: 36.115750 * Longitude: 158.458783 * Elevation: -3127.0 m * Recovery: 65.87 m * Campaign: Exp324 (Shatsky Rise) * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 16 cores; 134.4 m cored; 49 % average recovery; 165.1 m (CSF-A) Igneous basement depth; 85.3 m Igneous basement cored; 67.4 % Average basement recovery
324-U1350A * Latitude: 36.074850 * Longitude: 159.284417 * Elevation: -4056.0 m * Recovery: 75.19 m * Campaign: Exp324 (Shatsky Rise) * Basis: Joides Resolution * Device: Drilling/drill rig (DRILL) * Comment: 26 cores; 211.2 m cored; 35.6 % average recovery; 143.1 m (CSF-A) Igneous basement depth; 172.7 m Igneous basement cored; 43.19 % Average basement recovery
Comment:
Sediment depth is given in mbsf. Measurements of duplicate digests differ by less then 5% for most elements except Li, Sc, Rb, Ba and Pb. The analytical accuracy was < 0.03 per mil for d13C and < 0.06 per mil for d18O. All measurements were calibrated to Pee Dee Belemnite standard using NBS 19.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1Event labelEventLi, Sanzhong
2Sample code/labelSample labelLi, SanzhongODP sample designation
3DEPTH, sediment/rockDepthmLi, SanzhongGeocode
4Sample commentSample commentLi, Sanzhong
5LithiumLimg/kgLi, SanzhongICP-MS, Agilent 7500c
6ScandiumScmg/kgLi, SanzhongICP-MS, Agilent 7500c
7ManganeseMnmg/kgLi, SanzhongICP-MS, Agilent 7500c
8RubidiumRbmg/kgLi, SanzhongICP-MS, Agilent 7500c
9StrontiumSrmg/kgLi, SanzhongICP-MS, Agilent 7500c
10YttriumYmg/kgLi, SanzhongICP-MS, Agilent 7500c
11BariumBamg/kgLi, SanzhongICP-MS, Agilent 7500c
12LanthanumLamg/kgLi, SanzhongICP-MS, Agilent 7500c
13CeriumCemg/kgLi, SanzhongICP-MS, Agilent 7500c
14PraseodymiumPrmg/kgLi, SanzhongICP-MS, Agilent 7500c
15NeodymiumNdmg/kgLi, SanzhongICP-MS, Agilent 7500c
16SamariumSmmg/kgLi, SanzhongICP-MS, Agilent 7500c
17EuropiumEumg/kgLi, SanzhongICP-MS, Agilent 7500c
18GadoliniumGdmg/kgLi, SanzhongICP-MS, Agilent 7500c
19TerbiumTbmg/kgLi, SanzhongICP-MS, Agilent 7500c
20DysprosiumDymg/kgLi, SanzhongICP-MS, Agilent 7500c
21HolmiumHomg/kgLi, SanzhongICP-MS, Agilent 7500c
22ErbiumErmg/kgLi, SanzhongICP-MS, Agilent 7500c
23ThuliumTmmg/kgLi, SanzhongICP-MS, Agilent 7500c
24YtterbiumYbmg/kgLi, SanzhongICP-MS, Agilent 7500c
25LutetiumLumg/kgLi, SanzhongICP-MS, Agilent 7500c
26LeadPbmg/kgLi, SanzhongICP-MS, Agilent 7500c
27UraniumUmg/kgLi, SanzhongICP-MS, Agilent 7500c
28CeriumCemg/kgLi, SanzhongICP-MS, Agilent 7500c
29Magnesium/Calcium ratioMg/Cammol/molLi, SanzhongICP-OES, SPECTRO Ciros CCD
30Strontium/Calcium ratioSr/Cammol/molLi, SanzhongICP-OES, SPECTRO Ciros CCD
31Strontium 87/Strontium 8687Sr/86SrLi, SanzhongICP-OES, SPECTRO Ciros CCDmeasured at OUC (Ocean University of China)
32ReplicatesRepl#Li, SanzhongICP-OES, SPECTRO Ciros CCD
33Strontium 87/Strontium 8687Sr/86SrLi, SanzhongICP-OES, SPECTRO Ciros CCDmeasured at GEOMAR (Institute of Geosciences, University Kiel, Germany)
34ReplicatesRepl#Li, SanzhongICP-OES, SPECTRO Ciros CCD
35Neodymium 143/Neodymium 144143Nd/144NdLi, SanzhongICP-OES, SPECTRO Ciros CCD
36ReplicatesRepl#Li, SanzhongICP-OES, SPECTRO Ciros CCD
37δ13Cδ13C‰ PDBLi, SanzhongICP-OES, SPECTRO Ciros CCD
38δ18Oδ18OLi, SanzhongICP-OES, SPECTRO Ciros CCD
39Calcification temperatureCalc temp°CLi, SanzhongICP-OES, SPECTRO Ciros CCD
40Calcification temperatureCalc temp°CLi, SanzhongICP-OES, SPECTRO Ciros CCD
Size:
636 data points

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