Schumann, Dieter (1983): (Table 1) Mineralogy of DSDP Leg 65 sediments [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.817953, Supplement to: Schumann, D (1983): X-ray mineralogy of sediments recovered during DSDP Leg 65. In: Lewis, BTR; Robinson, P; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 65, 391-397, https://doi.org/10.2973/dsdp.proc.65.113.1983
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Abstract:
During Leg 65, four sites were drilled near the mouth of the Gulf of California where high sedimentation rates made it possible to sample young oceanic crust near the ridge crest. The oldest sediments cored were upper Pliocene siltstones (Site 483); the samples at the other sites (482, 484, and 485) were all Quaternary in age. A series of 80 sediment samples, most of them hemipelagic clays, were examined by semiquantitative X-ray diffraction and Carbonate Bomb techniques to determine their mineralogy and carbonate contents. The results of this study may be used to determine their provenance and diagenesis.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 22.865985 * Median Longitude: -108.214723 * South-bound Latitude: 22.748700 * West-bound Longitude: -108.748300 * North-bound Latitude: 23.188700 * East-bound Longitude: -107.903500
Date/Time Start: 1979-01-24T00:00:00 * Date/Time End: 1979-03-05T00:00:00
Minimum DEPTH, sediment/rock: 0.22 m * Maximum DEPTH, sediment/rock: 313.74 m
Event(s):
65-482 * Latitude: 22.789700 * Longitude: -107.993800 * Date/Time: 1979-01-24T00:00:00 * Elevation: -2998.0 m * Penetration: 4 m * Recovery: 3.9 m * Location: North Pacific/Gulf of California/CONT RISE * Campaign: Leg65 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 1 cores; 4 m cored; 0 m drilled; 98.5 % recovery
65-482A * Latitude: 22.789700 * Longitude: -107.993300 * Date/Time: 1979-01-24T00:00:00 * Elevation: -2998.0 m * Penetration: 44 m * Recovery: 18.7 m * Location: North Pacific/Gulf of California/CONT RISE * Campaign: Leg65 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 3 cores; 28.5 m cored; 0 m drilled; 65.7 % recovery
65-482B * Latitude: 22.789700 * Longitude: -107.993300 * Date/Time: 1979-01-24T00:00:00 * Elevation: -2998.0 m * Penetration: 229 m * Recovery: 99.8 m * Location: North Pacific/Gulf of California/CONT RISE * Campaign: Leg65 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 24 cores; 184.5 m cored; 0 m drilled; 54.1 % recovery
Comment:
Sediment depth is given in mbsf. <1 = minor, ?0 = questionable presence.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Elevation of event | Elevation | m | |||
| 5 | Sample code/label | Sample label | Schumann, Dieter | DSDP/ODP/IODP sample designation | ||
| 6 | Sample ID | Sample ID | Schumann, Dieter | |||
| 7 | DEPTH, sediment/rock | Depth sed | m | Geocode | ||
| 8 | Clay minerals | Clay min | % | Schumann, Dieter | X-ray diffraction (XRD) | + Amorphous material; Bulk mineralogy = 100% |
| 9 | Quartz | Qz | % | Schumann, Dieter | X-ray diffraction (XRD) | Bulk mineralogy = 100% |
| 10 | Feldspar | Fsp | % | Schumann, Dieter | X-ray diffraction (XRD) | Bulk mineralogy = 100% |
| 11 | Carbonates | Carb | % | Schumann, Dieter | Carbonate bomb (Müller & Gastner, 1971) | Bulk mineralogy = 100% |
| 12 | Clinoptilolite | Cpt | % | Schumann, Dieter | X-ray diffraction (XRD) | Bulk mineralogy = 100% |
| 13 | Pyrite, FeS2 | Py | % | Schumann, Dieter | X-ray diffraction (XRD) | Bulk mineralogy = 100% |
| 14 | Smectite | Sme | % | Schumann, Dieter | X-ray diffraction (XRD) | Clay mineralogy = 100% |
| 15 | Illite | Ill | % | Schumann, Dieter | X-ray diffraction (XRD) | Clay mineralogy = 100% |
| 16 | Chlorite | Chl | % | Schumann, Dieter | X-ray diffraction (XRD) | Clay mineralogy = 100% |
| 17 | Kaolinite | Kln | % | Schumann, Dieter | X-ray diffraction (XRD) | Clay mineralogy = 100% |
| 18 | Chlorite+Kaolinite | Chl+Kln | % | Schumann, Dieter | X-ray diffraction (XRD) | Clay mineralogy = 100%; Not resolved (small amounts only) |
| 19 | Clinoptilolite | Cpt | % | Schumann, Dieter | X-ray diffraction (XRD) | Clay mineralogy = 100% |
| 20 | Palygorskite | Plg | % | Schumann, Dieter | X-ray diffraction (XRD) | Clay mineralogy = 100%; Most <2 µm samples contains quartz |
| 21 | Barite | Brt | % | Schumann, Dieter | X-ray diffraction (XRD) | Clay mineralogy = 100%; Most <2 µm samples contains quartz |
| 22 | Talc | Tlc | % | Schumann, Dieter | X-ray diffraction (XRD) | Clay mineralogy = 100%; Most <2 µm samples contains quartz |
| 23 | Comment | Comment | Schumann, Dieter | Clay mineralogy = 100% |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
1329 data points