Perfit, Michael R; Saunders, Andrew D; Fornari, Daniel J (1982): (Table 1) Brief petrographic descriptions of analyzed samples at DSDP Leg 64 Holes [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.818447, In supplement to: Perfit, MR et al. (1982): Phase chemistry, fractional crystallization, and magma mixing in basalts from the Gulf of California, Deep Sea Drilling Project Leg 64. In: Curray, JR; Moore, DG; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 64, 649-666, https://doi.org/10.2973/dsdp.proc.64.114.1982
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Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Median Latitude: 25.035725 * Median Longitude: -110.236325 * South-bound Latitude: 22.959300 * West-bound Longitude: -111.507500 * North-bound Latitude: 27.096800 * East-bound Longitude: -108.978000
Date/Time Start: 1978-12-02T00:00:00 * Date/Time End: 1978-12-24T00:00:00
Minimum Elevation: -3022.0 m * Maximum Elevation: -1889.0 m
Event(s):
64-474A * Latitude: 22.959300 * Longitude: -108.978000 * Date/Time: 1978-12-02T00:00:00 * Elevation: -3022.0 m * Penetration: 626 m * Recovery: 290.1 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 49 cores; 453 m cored; 9.5 m drilled; 64 % recovery
64-475B * Latitude: 23.056000 * Longitude: -109.059500 * Date/Time: 1978-12-10T00:00:00 * Elevation: -2593.0 m * Penetration: 96 m * Recovery: 10.4 m * Location: North Pacific/Gulf of California/SLOPE * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 4 cores; 29.5 m cored; 0 m drilled; 35.2 % recovery
64-477 * Latitude: 27.030800 * Longitude: -111.400300 * Date/Time: 1978-12-18T00:00:00 * Elevation: -2003.0 m * Penetration: 191 m * Recovery: 50.6 m * Location: North Pacific/Gulf of California/BASIN * Campaign: Leg64 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 21 cores; 172 m cored; 19 m drilled; 29.4 % recovery
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 | Perfit, Michael R | DSDP/ODP/IODP sample designation | ||
| 6 | Interval comments | Interval comm | Perfit, Michael R | Petrographic data were used from core intervals other than those of the probed section, the level (in cm) | ||
| 7 | Description | Description | Perfit, Michael R | The petrographic descriptions are generalized and based on observations made from our own probed sections and thin sections prepared during the cruise |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
24 data points
Data
| 1 Event | 2 Latitude | 3 Longitude | 4 Elevation [m] | 5 Sample label | 6 Interval comm | 7 Description |
|---|---|---|---|---|---|---|
| 64-474A | 22.9593 | -108.9780 | -3022 | 64-474A-40-2,38-40 | 38 | Olivine-rich dolerite: No primary phenocrysts, but sample contains as much as 30% pseudomorphs of olivine (0.3-3.0 mm) |
| 64-474A | 22.9593 | -108.9780 | -3022 | 64-474A-42-2,20-23 | Dolerite: equigranular with some altered olivine phenocrysts and moderate alteration; minor phenocrysts of plagioclase and spinel with interstitial clinopyroxene | |
| 64-474A | 22.9593 | -108.9780 | -3022 | 64-474A-45-4,7-9 | 10 | Dolerite: subophitic to hyalophitic, containing laths of plagioclase (0.5-2.0 mm) surrounding altered olivine and fresh clinopyroxene phenocrysts (0.25-1.0 mm) in a matrix of plagioclase, clinopyroxene, and glass with abundant titanomagnetite grains |
| 64-474A | 22.9593 | -108.9780 | -3022 | 64-474A-46-3,80-82 | Basalt: porphyritic with large plagioclase megacrysts (as long as 1 cm) set in a fine matrix of plagioclase olivine, clinopyroxene, and fine opaques | |
| 64-474A | 22.9593 | -108.9780 | -3022 | 64-474A-49-3,146-149 | Pillow basalt: plagioclase phyric, megacryst-rich, with megacrysts as long as 1.5 in some sections; microphenocrysts of Plagioclase (10%), olivine (5%), and spinel (occasionally clinopyroxene) in an aphanitic matrix with quench textures | |
| 64-475B | 23.0560 | -109.0595 | -2593 | 64-475B-2-1,0-9 | 14 | Olivine basalt: porphyritic with a quenched, variolitic and intersertal texture; anhedral to subhedral olivine phenocrysts (0.2-2.0 mm) (10%); no plagioclase phenocrysts; skeletal, elongate olivine microlites (-5%) and |
| 64-477 | 27.0308 | -111.4003 | -2003 | 64-477-13-2,145-146 | 85 | Plagioclase-phyric dolerite: subophitic to intergranular with plagioclase phenocrysts (as long as 4 mm) (15%) surrounded by smaller plagioclase laths enclosing or partially enclosing anhedral to subhedral grains of |
| 64-478 | 27.0968 | -111.5075 | -1889 | 64-478-42-2,82-83 | 85 | Dolerite: contains large (1-4 mm) clinopyroxene phenocrysts ophitically enclosing smaller Plagioclase (1 mm) laths. Matrix is composed of plagioclase (25%), anhedral, clinopyroxene, olivine and iron-titanium oxides (-20%) |
| 64-478 | 27.0968 | -111.5075 | -1889 | 64-478-51-3,52-53 | 48 and 111 | Dolerite with gabbro xenoliths: inequigranular ophitic, with large clinopyroxene (1-6 mm) enclosing plagioclase (0.5-1.5 mm) laths and olivine microphenocrysts; approximately 50% plagioclase, 30% clinopyroxene, 10% olivine, 5% iron-titanium oxides |