Li, Long; Bebout, Gray E; Idleman, Bruce D (2007): (Table 1) Rock description and nitrogen concentrations and isotopic compositions of altered oceanic crust samples from ODP Hole 129-801B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.711132, In supplement to: Li, L et al. (2007): Nitrogen concentration and delta 15N of altered oceanic crust obtained on ODP Legs 129 and 185: Insights into alteration-related nitrogen enrichment and the nitrogen subduction budget. Geochimica et Cosmochimica Acta, 71(9), 2344-2360, https://doi.org/10.1016/j.gca.2007.02.001
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Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 18.642000 * Longitude: 156.359700
Date/Time Start: 1989-12-09T17:00:00 * Date/Time End: 1989-12-17T01:15:00
Minimum DEPTH, sediment/rock: 483.26 m * Maximum DEPTH, sediment/rock: 493.52 m
Event(s):
129-801B * Latitude: 18.642000 * Longitude: 156.359700 * Date/Time Start: 1989-12-09T17:00:00 * Date/Time End: 1989-12-17T01:15:00 * Elevation: -5685.0 m * Penetration: 511.2 m * Recovery: 59.17 m * Location: North Pacific Ocean * Campaign: Leg129 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 44 cores; 317.2 m cored; 0 m drilled; 18.7 % recovery
Comment:
The basement at Site 801 is divided into 4 intervals (the alkaline basalt sills and 3 MORB sections) according to the geochemical characterization of more than 100 communal samples (Plank et al., 2000; http://www-odp.tamu.edu/publications/185_IR/185ir.htm). For each interval, one composite was made for submarine extrusives (FLO) and clastic rocks (VCL) by combing proportional communal samples. FLO and VCL are then combined into the MIX composite in a ratio of 30-70%. The SUPER composite was made for the entire MORB interval by combing the 3 MORB composites. The SED composite was made for the intercalated sediments in the upper 230 m of the basement (mostly in Sequences I, III, and IV, see descriptions by Plank et al. (2000); http://www-odp.tamu.edu/publications/185_IR/185ir.htm; Alt (2003); doi:10.1029/2002GC000400).
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 2 | Sample code/label | Sample label | Li, Long | DSDP/ODP/IODP sample designation | ||
| 3 | Sample comment | Sample comment | Li, Long | |||
| 4 | Lithologic unit/sequence | Unit | Li, Long | |||
| 5 | Description | Description | Li, Long | |||
| 6 | Nitrogen, total | TN | mg/kg | Li, Long | ||
| 7 | δ15N | δ15N | ‰ air | Li, Long | Mass spectrometer Finnigan MAT 252 | air |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
27 data points
Data
| 1 Depth sed [m] | 2 Sample label | 3 Sample comment | 4 Unit | 5 Description | 6 TN [mg/kg] | 7 δ15N [‰ air] |
|---|---|---|---|---|---|---|
| 483.26 | 129-801B-41R-1,26-30 | I. Alkalic basalts | Slight to moderate alteration, a majority altered to green clay, some fe stains around opaques | 7.8 | 0.7 | |
| 487.00 | 129-801B-TAB FLO | Composite | 3.8 | -7.9 | ||
| 487.00 | 129-801B-TAB VCL | Composite | 6.0 | -2.0 | ||
| 487.00 | 129-801B-TAB MIX | Composite | 5.0 | -2.5 | ||
| 492.42 | 129-801B-43R-1,22-27 | I. Alkalic basalts | Slight alteration, some green clays replacing non-pyroxene matrix, calcite-green clay veins present | 9.5 | 0.2 | |
| 493.52 | 129-801B-43R-1,132-135 | I. Alkalic basalts | Minimum alteration | 2.8 | -3.0 |