Sinton, Christopher W; Sigurdsson, Haraldur; Duncan, Robert A (2000): Major element oxides and 40Ar/39Ar plateau and isochron ages of ODP Hole 165-1001A [dataset publication series]. PANGAEA, https://doi.org/10.1594/PANGAEA.803423, Supplement to: Sinton, CW et al. (2000): Geochronology and petrology of the igneous basement at the Lower Nicaraguan Rise, Site 1001. In: Leckie, RM; Sigurdsson, H; Acton, GD; Draper, G (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 165, 1-4, https://doi.org/10.2973/odp.proc.sr.165.029.2000
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Abstract:
40Ar-39Ar incremental heating experiments and electron microprobe analyses were performed on basaltic rocks recovered from Site 1001 during Ocean Drilling Program Leg 165. The lower Nicaraguan Rise, on which Site 1001 lies, appears to be part of a larger Caribbean oceanic plateau that makes up the core of the Caribbean plate. Our results indicate an eruption age of 81 ± 1 Ma. A single flow-rim glass is tholeiitic and almost identical to the shipboard X-ray fluorescence analyses of the whole rock. The slightly porphyritic basalts have at least two populations of plagioclase, groundmass, and glomerocrystic plagioclase laths that appear to be in equilibrium with the surrounding melt and corroded tabular phenocrysts that have a higher An content (An84-86).
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: 15.757100 * Longitude: -74.910500
Date/Time Start: 1996-02-07T02:45:00 * Date/Time End: 1996-02-12T19:30:00
Event(s):
165-1001A * Latitude: 15.757100 * Longitude: -74.910500 * Date/Time Start: 1996-02-07T02:45:00 * Date/Time End: 1996-02-12T19:30:00 * Elevation: -3260.0 m * Penetration: 522.8 m * Recovery: 286.24 m * Location: Caribbean Sea * Campaign: Leg165 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 56 cores; 522.8 m cored; 0 m drilled; 54.8 % recovery
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2 datasets
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Datasets listed in this publication series
- Sinton, CW; Sigurdsson, H; Duncan, RA (2000): (Table 2) Argon plateau and isochron ages of ODP Hole 165-1001A. https://doi.org/10.1594/PANGAEA.803422
- Sinton, CW; Sigurdsson, H; Duncan, RA (2000): (Table 1) Major element oxides of ODP Hole 165-1001A basalt glass and feldspars. https://doi.org/10.1594/PANGAEA.803420