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Coggon, Rosalind M; Teagle, Damon A H; Cooper, Matthew J; Hayes, Tina E F; Green, Darryl R H (2006): (Table T1) Geochemistry of calcium carbonate veins from ODP Holes 206-1256C and 206-1256D [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.775763, Supplement to: Coggon, RM et al. (2006): Data report: Compositions of calcium carbonate veins from superfast spreading rate crust, ODP Leg 206. In: Teagle, DAH; Wilson, DS; Acton, GD; Vanko, DA (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 206, 1-6, https://doi.org/10.2973/odp.proc.sr.206.002.2006

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Published: 2006 (exact date unknown) • DOI registered: 2012-03-08

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Abstract:
Drilling a complete deep crustal section has been a primary yet elusive goal since the inception of scientific ocean drilling. In situ ocean crustal sections would contribute enormously to our understanding of the formation and subsequent evolution of the ocean crust, in particular the interplay between magmatic, hydrothermal, and tectonic processes. Ocean Drilling Program (ODP) Leg 206 was the first of a multileg project to drill an in situ crustal section that penetrated the gabbroic rocks of the Cocos plate (6°44.2'N, 91°56.1'W), which formed ~15 m.y. ago on the East Pacific Rise during a period of superfast spreading (>200 mm/yr) (Wilson, Teagle, Acton, et al., 2003, doi:10.2973/odp.proc.ir.206.2003).
During Leg 206, the upper 500 m of basement was cored in Holes 1256C and 1256D with moderate to high recovery rates. The igneous rocks recovered are predominantly thin (10 cm to 3 m) basalt flows separated by chilled margins. There are also several massive flows (>3 m thick), although their abundance decreases with depth in Hole 1256D, as well as minor pillow basalts, hyaloclastites, and rare dikes. The lavas have been slightly (<10%) altered by low-temperature hydrothermal fluids, which resulted in pervasive dark gray background alteration and precipitation of saponite, pyrite, silica, celadonite, and calcium carbonate veins.
Here we present a geochemical analysis of the CaCO3 recovered from cores. The compositions of ridge flank fluids within superfast spreading crust will be determined from these data, following the approach of Hart et al. (1994, doi:10.1029/93JB02035), Yatabe et al. (2000, doi:10.2973/odp.proc.sr.168.003.2000), and Coggon et al. (2004, doi:10.1016/S0012-821X(03)00697-6).
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: 0.736180 * Median Longitude: -91.934330 * South-bound Latitude: 0.736050 * West-bound Longitude: -91.934350 * North-bound Latitude: 0.736310 * East-bound Longitude: -91.934310
Date/Time Start: 2002-11-17T06:30:00 * Date/Time End: 2002-11-23T03:45:00
Minimum DEPTH, sediment/rock: 255.4 m * Maximum DEPTH, sediment/rock: 659.3 m
Event(s):
206-1256C  * Latitude: 0.736310 * Longitude: -91.934310 * Date/Time Start: 2002-11-17T06:30:00 * Date/Time End: 2002-11-23T03:45:00 * Elevation: -3634.7 m * Penetration: 340.3 m * Recovery: 61.07 m * Location: North Pacific Ocean * Campaign: Leg206 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 14 cores; 120.2 m cored; 220.1 m drilled; 50.8 % recovery
206-1256D  * Latitude: 0.736050 * Longitude: -91.934350 * Date/Time: 2002-11-23T03:45:00 * Elevation: -3634.7 m * Penetration: 752 m * Recovery: 227.3 m * Location: North Pacific Ocean * Campaign: Leg206 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 73 cores; 475.9 m cored; 276.1 m drilled; 47.8 % recovery
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEvent
2 Sample code/labelSample labelCoggon, Rosalind MDSDP/ODP/IODP sample designation
3 DEPTH, sediment/rockDepth sedmGeocode – mbsf
4 Depth, relativeDepth relmCoggon, Rosalind Mwithin basement
5 MineralsMineralsCoggon, Rosalind M
6 δ13C, carbonateδ13C carb‰ PDBCoggon, Rosalind MMass spectrometer Europa Geo 20-20precision better than ±0.1 per mil
7 δ18O, carbonateδ18O carb‰ SMOWCoggon, Rosalind MMass spectrometer Europa Geo 20-20precision better than ±0.1 per mil
8 MagnesiumMg2+mg/kgCoggon, Rosalind MInductively coupled plasma atomic emission spectroscope (ICP-AES)
9 StrontiumSrmg/kgCoggon, Rosalind MInductively coupled plasma atomic emission spectroscope (ICP-AES)
10 IronFemg/kgCoggon, Rosalind MInductively coupled plasma atomic emission spectroscope (ICP-AES)
11 ManganeseMnmg/kgCoggon, Rosalind MInductively coupled plasma atomic emission spectroscope (ICP-AES)
12 Strontium-87/Strontium-86 ratio87Sr/86SrCoggon, Rosalind M
13 Strontium-87/Strontium-86 ratio, error87Sr/86Sr e±Coggon, Rosalind M2 sigma
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
395 data points

Data

Download dataset as tab-delimited text — use the following character encoding:

1 
Event		2 
Sample label		3 
Depth sed [m]		4 
Depth rel [m]		5 
Minerals		6 
δ13C carb [‰ PDB]		7 
δ18O carb [‰ SMOW]		8 
Mg2+ [mg/kg]		9 
Sr [mg/kg]		10 
Fe [mg/kg]		11 
Mn [mg/kg]		12 
87Sr/86Sr		13 
87Sr/86Sr e [±]
206-1256C 206-1256C-5R-3,14-18255.45.4aragonite0.5827.6642935201130150.7086380.000011
206-1256C206-1256C-5R-3,27-30255.65.6aragonite1.3726.452173230528100.7086320.000013
206-1256C206-1256C-6R-3,109-112260.810.8aragonite1.5826.8947352014050.7086230.000011
206-1256C206-1256C-6R-4,107-111262.112.1aragonite-calcite mixture0.6125.48459047111600253000.7085720.000011
206-1256C206-1256C-7R-3,50-55269.819.8calcite0.3225.17497014012500256000.7085660.000013
206-1256C206-1256C-8R-1,56-60276.126.1aragonite0.6627.28844210209120.7086580.000010
206-1256C206-1256C-8R-4,20-23279.829.8calcite0.4221.87117059210073900.7082160.000093
206-1256C206-1256C-8R-4,32-35279.929.9aragonite3.4730.7650865201210700.7086910.000010
206-1256C206-1256C-8R-4,64-67280.230.2aragonite3.2930.5254163401230510.7087010.000011
206-1256C206-1256C-8R-4,72-75280.330.3aragonite-calcite mixture2.5430.611250640025001240.7086840.000011
206-1256C206-1256C-8R-6,21-23281.731.7aragonite3.1131.503665760590790.7085530.000011
206-1256C206-1256C-13R-1,10-12322.172.1aragonite3.2328.921105140249360.7087190.000011
206-1256D 206-1256D-7R-1,46-49304.454.4calcite0.3622.9912404035108900
206-1256D206-1256D-7R-6,39-41311.161.1calcite-0.9322.6427208657406700
206-1256D206-1256D-8R-3,67-68316.266.2aragonite3.6129.454154070950860.7086140.000011
206-1256D206-1256D-8R-4,111-116317.467.4aragonite-calcite mixture1.9326.35186010504280202000.7084370.000011
206-1256D206-1256D-12R-5,76-81347.197.1calcite-0.3525.921970532890447000.7082300.000013
206-1256D206-1256D-12R-6,93-95348.898.8calcite1.0723.5980729191083100.7080860.000047
206-1256D206-1256D-12R-8,27-33350.8100.8aragonite-calcite mixture2.2928.43134047702350670.7086750.000011
206-1256D206-1256D-13R-1,82-85351.1101.1calcite0.0623.0815105317608340
206-1256D206-1256D-26R-5,104-105445.0195.0calcite0.3022.233380528490106000.7083410.000024
206-1256D206-1256D-27R-1,23-27445.6195.6calcite-1.3422.2731606310100111000.7082960.000014
206-1256D206-1256D-27R-1,29-32445.7195.7calcite-0.5722.0946507612800143000.7084460.000016
206-1256D206-1256D-27R-2,28-31447.1197.1calcite0.5322.29249060514067200.7083080.000011
206-1256D206-1256D-28R-1,121-123452.1202.1calcite-0.4422.044560657580132000.7084080.000018
206-1256D206-1256D-32R-1,98-99476.2226.2aragonite0.0022.111331160404520.7083650.000010
206-1256D206-1256D-32R-1,124-126476.4226.4calcite-3.1121.59223050756098900.7082860.000011
206-1256D206-1256D-32R-2,44-46477.1227.1aragonite-1.2321.77398759129011100.7082590.000011
206-1256D206-1256D-32R-4,2-4479.3229.3aragonite-calcite mixture-1.4921.602220398650063200.7082500.000011
206-1256D206-1256D-33R-3,15-17484.0234.0calcite0.0721.45527053187005660
206-1256D206-1256D-34R-1,0-3484.4234.4calcite-0.3421.352800621220074800.7082680.000013
206-1256D206-1256D-36R-1,42-45494.4244.4calcite-0.9922.02726010218300152000.7084900.000016
206-1256D206-1256D-38R-1,91-93505.2255.2aragonite-calcite mixture-0.3721.601540116025404800.7082950.000011
206-1256D206-1256D-41R-2,117-118527.2277.2calcite-1.8421.01215048670075700.7082690.000011
206-1256D206-1256D-41R-3,6-10527.5277.5aragonite-1.4321.3249511301290171
206-1256D206-1256D-42R-1,33-35529.7279.7calcite-2.2820.9720805173606170
206-1256D206-1256D-59R-1,27-31659.3409.3calcite0.8020.0295037174011600.7080430.000016