Mavromatis, Vasileios; Meister, Patrick; Oelkers, Eric H (2016): (Table 1) Magnesium isotope composition of analyzed unlithified sediments of ODP Hole 112-685A and 201-1230A from the Peru Margin [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.857296, In supplement to: Mavromatis, V et al. (2014): Using stable Mg isotopes to distinguish dolomite formation mechanisms: A case study from the Peru Margin. Chemical Geology, 385, 84-91, https://doi.org/10.1016/j.chemgeo.2014.07.019
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Project(s):
Ocean Drilling Program (ODP)
Coverage:
Median Latitude: -9.112775 * Median Longitude: -80.583500 * South-bound Latitude: -9.113000 * West-bound Longitude: -80.583500 * North-bound Latitude: -9.112550 * East-bound Longitude: -80.583500
Date/Time Start: 1986-11-22T13:50:00 * Date/Time End: 2002-03-16T22:35:00
Minimum DEPTH, sediment/rock: 6.5 m * Maximum DEPTH, sediment/rock: 459.1 m
Event(s):
112-685A * Latitude: -9.113000 * Longitude: -80.583500 * Date/Time Start: 1986-11-22T13:50:00 * Date/Time End: 1986-11-30T09:30:00 * Elevation: -5093.0 m * Penetration: 468.6 m * Recovery: 278.65 m * Location: South Pacific Ocean * Campaign: Leg112 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 51 core; 468.6 m cored; 0 m drilled; 59.5 % recovery
201-1230A * Latitude: -9.112550 * Longitude: -80.583500 * Date/Time Start: 2002-03-11T00:38:00 * Date/Time End: 2002-03-16T22:35:00 * Elevation: -5086.2 m * Penetration: 278.3 m * Recovery: 187.33 m * Location: South Pacific Ocean * Campaign: Leg201 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 39 cores; 277.3 m cored; 1 m drilled; 67.6 % recovery
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Mavromatis, Vasileios | |||
| 2 | Latitude of event | Latitude | Mavromatis, Vasileios | |||
| 3 | Longitude of event | Longitude | Mavromatis, Vasileios | |||
| 4 | Sample code/label | Sample label | Mavromatis, Vasileios | DSDP/ODP/IODP sample designation | ||
| 5 | DEPTH, sediment/rock | Depth sed | m | Mavromatis, Vasileios | Geocode – in meters below seafloor (mbsf) | |
| 6 | Description | Description | Mavromatis, Vasileios | |||
| 7 | Main Lithology | Main lith | Mavromatis, Vasileios | |||
| 8 | Traces | Traces | Mavromatis, Vasileios | MC-ICP-MS Thermo-Finnigan Neptune | ||
| 9 | δ25Mg | δ25Mg | ‰ | Mavromatis, Vasileios | MC-ICP-MS Thermo-Finnigan Neptune | |
| 10 | δ25Mg, standard deviation | δ25Mg std dev | ± | Mavromatis, Vasileios | MC-ICP-MS Thermo-Finnigan Neptune | 2 sigma |
| 11 | δ26Mg | δ26Mg | ‰ | Mavromatis, Vasileios | MC-ICP-MS Thermo-Finnigan Neptune | |
| 12 | δ26Mg, standard deviation | δ26Mg std dev | ± | Mavromatis, Vasileios | MC-ICP-MS Thermo-Finnigan Neptune | 2 sigma |
| 13 | Replicates | Repl | # | Mavromatis, Vasileios | ||
| 14 | Comment | Comment | Mavromatis, Vasileios |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
112 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Sample label | 5 Depth sed [m] | 6 Description | 7 Main lith | 8 Traces | 9 δ25Mg [‰] | 10 δ25Mg std dev [±] | 11 δ26Mg [‰] | 12 δ26Mg std dev [±] | 13 Repl [#] | 14 Comment |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 112-685A | -9.1130 | -80.5835 | 112-685A-44X-1,142-146 | 394.0 | Unlithified sediment | 0.03 | 0.07 | 0.08 | 0.09 | 3 | |||
| 112-685A | -9.1130 | -80.5835 | 112-685A-50X-CC,30-32 | 450.9 | Semi-unlithified mud | -0.01 | 0.01 | -0.03 | 0.07 | 3 | |||
| 201-1230A | -9.1126 | -80.5835 | 201-1230A-4H-5,70-75 | 30.6 | Unlithified sediment | -0.17 | 0.04 | -0.32 | 0.04 | 3 | |||
| 201-1230A | -9.1126 | -80.5835 | 201-1230A-22H-3,70-75 | 172.0 | Unlithified sediment | -0.16 | 0.02 | -0.30 | 0.02 | 3 | |||
| 201-1230A | -9.1126 | -80.5835 | 201-1230A-37X-1,65-70 | 258.3 | Unlithified sediment | -0.03 | 0.02 | -0.03 | 0.03 | 3 | |||
| 112-685A | -9.1130 | -80.5835 | 112-685A-2H-2,45-60 | 6.5 | Nodule | Dolomite, Quartz | Plagioclase | -1.82 | 0.06 | -3.46 | 0.06 | 3 | Type I |
| 112-685A | -9.1130 | -80.5835 | 112-685A-51X-CC,1-3 | 459.1 | Nodule | Dolomite | Quartz | -1.48 | 0.04 | -2.70 | 0.01 | 3 | Type II |
| 201-1230A | -9.1126 | -80.5835 | 201-1230A-33X-1,46-49 | 234.9 | Nodule | Dolomite | Quartz, calcite | -1.49 | 0.01 | -2.86 | 0.03 | 3 | Type II |
| 201-1230A | -9.1126 | -80.5835 | 201-1230A-33X-1,46-49 | 234.9 | -1.58 | 0.04 | -3.03 | 0.08 | 3 | Type II, Leached | |||
| 201-1230A | -9.1126 | -80.5835 | 201-1230A-30X-1,0-5 | 226.3 | Nodule | Dolomite | Quartz | -1.40 | 0.03 | -2.67 | 0.09 | 3 | Type II, Leached |
| 201-1230A | -9.1126 | -80.5835 | 201-1230A-30X-CC,22-25 | 228.0 | Nodule | Dolomite | Quartz | -1.32 | 0.02 | -2.54 | 0.01 | 3 | Type II, Leached |
| 201-1230A | -9.1126 | -80.5835 | 201-1230A-31X-1,0-19 | 229.6 | Dolomite layer, top | Dolomite | Quartz | -1.35 | 0.02 | -2.62 | 0.02 | 3 | Type II |
| 201-1230A | -9.1126 | -80.5835 | 201-1230A-31X-1,0-19 | 229.6 | Dolomite layer, bottom | Dolomite | Quartz | -1.36 | 0.03 | -2.61 | 0.03 | 3 | Type II, Leached |