Kelts, Kerry; Niemitz, Jeffrey W (1982): (Table 1) Minerals of bulk sediment at DSDP Holes 64-480 and 64-481 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.819100, Supplement to: Kelts, K; Niemitz, JW (1982): Preliminary sedimentology of late Quaternary diatomaceous muds from Deep Sea Drilling Project Site 480, Guaymas Basin Slope, Gulf of California. In: Curray, JR; Moore, DG; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 64, 1191-1210, https://doi.org/10.2973/dsdp.proc.64.159.1982
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Abstract:
This paper provides a brief, descriptive, sedimentological background for the chapters on hydraulic piston core Site 480 in this symposium, and supplements data given in the site chapter for Sites 479-480 (this volume, Pt. 1). Sediments are composed primarily of planktonic diatoms, with minor numbers of silicoflagellates, radiolarians, and varying amounts of both benthic and planktonic foraminifers, along with a large terrigenous component of olive brown, silty clay. The section contains meter-thick intervals of finely laminated facies alternating with nonlaminated zones. A few paleoenvironmental events are documented within the generally uniform sequence by sporadic occurrences of thin turbidites, phosphatic concretions, fish debris concentrations, an ash layer, and a thin layer of diagenetic dolomite. The distribution of nonlaminated and laminated zones is attributed to fluctuations of bottom-water oxygen content caused by variations in circulation, fertility, and productivity. Homogeneous sections are interpreted as coinciding with cooler climatic periods, whereas laminated sections seem to correspond to upwelling conditions during drier periods.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 27.577350 * Median Longitude: -111.581700 * South-bound Latitude: 27.253000 * West-bound Longitude: -111.655700 * North-bound Latitude: 27.901700 * East-bound Longitude: -111.507700
Date/Time Start: 1978-12-31T00:00:00 * Date/Time End: 1979-01-03T00:00:00
Minimum Elevation: -1998.0 m * Maximum Elevation: -655.0 m
Event(s):
64-480 * Latitude: 27.901700 * Longitude: -111.655700 * Date/Time: 1978-12-31T00:00:00 * Elevation: -655.0 m * Penetration: 152.1 m * Recovery: 117.3 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 30 cores; 144 m cored; 4.8 m drilled; 81.5 % recovery
64-481 * Latitude: 27.253000 * Longitude: -111.507700 * Date/Time: 1979-01-03T00:00:00 * Elevation: -1998.0 m * Penetration: 52.3 m * Recovery: 33.2 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 10 cores; 48 m cored; 4.8 m drilled; 69.2 % recovery
Comment:
Empty cells mean data not available.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Sample code/label | Sample label | Kelts, Kerry | DSDP/ODP/IODP sample designation | ||
| 3 | Comment | Comment | Kelts, Kerry | |||
| 4 | Quartz (peak height) | Qz peak height | Kelts, Kerry | X-ray diffraction (XRD) | mm | |
| 5 | Calcite (peak height) | Cal peak height | Kelts, Kerry | X-ray diffraction (XRD) | mm | |
| 6 | Plagioclase (peak height) | Pl peak height | Kelts, Kerry | X-ray diffraction (XRD) | mm | |
| 7 | Kalifeldspar (peak height) | Kfs peak height | Kelts, Kerry | X-ray diffraction (XRD) | mm | |
| 8 | Illite (peak height) | Ill peak height | Kelts, Kerry | X-ray diffraction (XRD) | mm; <1 = trace, #0 = present | |
| 9 | Chlorite (peak height) | Chl peak height | Kelts, Kerry | X-ray diffraction (XRD) | mm; #0 = present | |
| 10 | Smectite (peak height) | Sme peak height | Kelts, Kerry | X-ray diffraction (XRD) | mm; <1 = trace, #0 = present | |
| 11 | Clay minerals | Clay min | Kelts, Kerry | X-ray diffraction (XRD) | Minor | |
| 12 | Pyrite (peak height) | Py peak height | Kelts, Kerry | X-ray diffraction (XRD) | mm; #0 = present | |
| 13 | Height | Height | Kelts, Kerry | X-ray diffraction (XRD) | Other peak height | |
| 14 | Silica, amorphous | ASi | Kelts, Kerry | X-ray diffraction (XRD) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
102 data points
Data
| 1 Event | 2 Sample label | 3 Comment | 4 Qz peak height | 5 Cal peak height | 6 Pl peak height | 7 Kfs peak height | 8 Ill peak height | 9 Chl peak height | 10 Sme peak height | 11 Clay min | 12 Py peak height | 13 Height | 14 ASi |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 64-480 | 64-480-4-CC | Homogeneous | 210 | 80 | 50 | 15 | <1 | #0 | #0 | Broad | 6 | + | |
| 64-480 | 64-480-8-CC | 215 | 75 | 5 | #0 | <1 | Broad | + + | |||||
| 64-480 | 64-480-10-CC | 101 | 50 | 15 | 8 | #0 | #0 | #0 | 10 | Dolomite (2.90Å) 21 mm | + + | ||
| 64-480 | 64-480-12-CC | Brown, sandy | 220 | 112 | 122 | 12 | #0 | Amphibole, zeolite (clinoptilolite) trace | |||||
| 64-480 | 64-480-14-CC | 220 | 105 | 42 | 35 | #0 | #0 | Broad | Dolomite 25 mm | + + | |||
| 64-480 | 64-480-18-CC | 82 | 15 | 18 | 12 | #0 | #0 | 14 | + + + + | ||||
| 64-480 | 64-480-20-CC | 120 | 25 | 13 | 20 | #0 | #0 | Broad | Mg-CC trace (2.93 mm, 2.99 mm) | + + | |||
| 64-480 | 64-480-22-CC | 133 | 35 | 25 | #0 | #0 | #0 | Broad | + + + | ||||
| 64-480 | 64-480-26-CC | 220 | 40 | 34 | 12 | #0 | 12 | #0 | Mg-CC trace (2.95 mm) | + + | |||
| 64-480 | 64-480-30-CC | 183 | 29 | 20 | 35 | Broad | Mg-CC (2.98 Å), trace 12 mm, trace glauconite(?) | ||||||
| 64-481 | 64-481-8-3,1-3 | 52 | 20 | 65 | |||||||||
| 64-481 | 64-481-8-3,9-10 | >230 | 2 | 25 |