Beiersdorf, Helmut; Rösch, Heinrich (1983): (Table 1) Mineralogical composition of sediments from DSDP Sites 69-504 and 69-505 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.816252, Supplement to: Beiersdorf, H; Rösch, H (1983): Mineralogy of sediments encountered during Deep Sea Drilling Project Leg 69 (Costa Rica Rift, Panama Basin), as determined by x-ray diffraction. In: Cann, JR; Langseth, MG; Honnorez, J; Von Herzen, RP; White, SM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 69, 385-393, https://doi.org/10.2973/dsdp.proc.69.115.1983
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Abstract:
We discuss the provenance of minerals detected by X-ray-diffraction analyses of sediments of Sites 504 and 505 of Deep Sea Drilling Project Leg 69. These are X-ray-amorphous material, opal-CT, calcite, quartz, feldspar, apatite, smectite, illite, kaolinite, magnetite, maghemite, pyrite, marcasite, barite, sepiolite, and clinoptilolite. Authigenic marcasite and clinoptilolite together with opal-CT are restricted to Site 504, indicating the special diagenetic conditions related to relatively high sediment temperatures at this site. Marcasite formation is likely dependent on the relatively low pH values of <7.1 found in interstitial waters of Site 504 sediments below 50 meters sub-bottom. Clinoptilolite evidently was formed by diagenetic alteration of rhyolitic volcanic glass or smectite plus biogenic silica within the chalk-limestone-chert sequence of Site 504, where opal-CT also reflects a high degree of silica dissolution and reprecipitation. This was a consequence of high temperatures (50-55 °C) at the base of the sediment column.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 1.398400 * Median Longitude: -83.746225 * South-bound Latitude: 1.226300 * West-bound Longitude: -83.790000 * North-bound Latitude: 1.913300 * East-bound Longitude: -83.730200
Date/Time Start: 1979-09-20T00:00:00 * Date/Time End: 1979-10-07T00:00:00
Minimum Elevation: -3537.0 m * Maximum Elevation: -3458.0 m
Event(s):
69-504 * Latitude: 1.226300 * Longitude: -83.732200 * Date/Time: 1979-09-20T00:00:00 * Elevation: -3460.0 m * Penetration: 237 m * Recovery: 10 m * Campaign: Leg69 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL)
69-504A * Latitude: 1.226800 * Longitude: -83.732500 * Date/Time: 1979-09-24T00:00:00 * Elevation: -3458.0 m * Penetration: 277 m * Recovery: 207 m * Campaign: Leg69 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL)
69-504B * Latitude: 1.227200 * Longitude: -83.730200 * Date/Time: 1979-10-07T00:00:00 * Elevation: -3460.0 m * Penetration: 489 m * Recovery: 262 m * Campaign: Leg69 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL)
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 | Beiersdorf, Helmut | DSDP/ODP/IODP sample designation | ||
| 6 | Lithologic unit/sequence | Unit | Beiersdorf, Helmut | |||
| 7 | Size fraction < 0.002 mm, clay | <2 µm | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | CaCO3 free |
| 8 | Size fraction 0.020-0.002 mm | 20-2 µm | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | CaCO3 free |
| 9 | Size fraction > 0.020 mm | >20 µm | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | CaCO3 free |
| 10 | Calcium carbonate | CaCO3 | % | Beiersdorf, Helmut | Volumetry | |
| 11 | Amorphics | Amorphics | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm; amorphous scatter |
| 12 | Amorphics | Amorphics | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm; amorphous scatter |
| 13 | Amorphics | Amorphics | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm; amorphous scatter |
| 14 | Smectite | Sme | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 15 | Smectite | Sme | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 16 | Smectite | Sme | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 17 | Kaolinite | Kln | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 18 | Kaolinite | Kln | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 19 | Kaolinite | Kln | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 20 | Illite | Ill | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm, may contain muscovite |
| 21 | Illite | Ill | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm, may contain muscovite |
| 22 | Illite | Ill | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm, may contain muscovite |
| 23 | Quartz | Qz | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 24 | Quartz | Qz | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 25 | Quartz | Qz | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 26 | Feldspar | Fsp | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 27 | Feldspar | Fsp | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 28 | Feldspar | Fsp | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 29 | Apatite | Ap | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 30 | Apatite | Ap | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 31 | Apatite | Ap | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 32 | Magnetite | Fe3O4 | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 33 | Magnetite | Fe3O4 | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 34 | Magnetite | Fe3O4 | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 35 | Maghemite | Mgh | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 36 | Maghemite | Mgh | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 37 | Maghemite | Mgh | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 38 | Pyrite, FeS2 | Py | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 39 | Pyrite, FeS2 | Py | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 40 | Pyrite, FeS2 | Py | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 41 | Marcasite | Mrc | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 42 | Marcasite | Mrc | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 43 | Marcasite | Mrc | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 44 | Barite | Brt | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 45 | Barite | Brt | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 46 | Barite | Brt | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 47 | Sepiolite | Sep | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 48 | Sepiolite | Sep | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 49 | Sepiolite | Sep | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 50 | Opal-CT | Opal-CT | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 51 | Opal-CT | Opal-CT | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 52 | Opal-CT | Opal-CT | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 53 | Clinoptilolite | Cpt | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 54 | Clinoptilolite | Cpt | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 55 | Clinoptilolite | Cpt | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 56 | Kaolinite | Kln | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm; kaolinite-sepiolite |
| 57 | Siderite | Sd | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | <2 µm |
| 58 | Amphibole | Amp | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 59 | Amphibole | Amp | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 60 | Dolomite | Dol | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | 2-20 µm |
| 61 | Dolomite | Dol | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 62 | Goethite | Gth | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
| 63 | Talc | Tlc | % | Beiersdorf, Helmut | X-ray diffraction (XRD) | >20 µm |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
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