Holm, Paul Martin (2002): (Table T1) Geochemical composition of gabbroic rocks from ODP Hole 176-735B [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.787387, Supplement to: Holm, PM (2002): Data report: On the composition of the lower ocean crust-major and trace element analyses of gabbroic rocks from Hole 735B, 500-1500 mbsf. In: Natland, JH; Dick, HJB; Miller, DJ; Von Herzen, RP (eds.) Proceedings of the Ocean Drilling Program, Scientific Results, College Station, TX (Ocean Drilling Program), 176, 1-13, https://doi.org/10.2973/odp.proc.sr.176.020.2002
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Elemental data for 89 whole-rock samples from Hole 735B, 500-1500 meters below seafloor (Ocean Drilling Program Leg 176), are presented. The samples represent the rock types recovered. The data set is compared to shipboard analyses. The index Na/(Na + Al) is used to monitor magmatic evolution. Oxide-rich rocks are enriched in the albite component and are thus derived from relatively evolved melts. Not all evolved magmas precipitated Fe-Ti oxide. The geochemistry of most rocks is largely controlled by the proportion of cumulus clinopyroxene and plagioclase. The primitive magmas had Zr/Nb < 60, Sr = 0.100 ppm, and Sc = 0.35 ppm. All oxide-rich rocks are found to be mixtures of primitive and evolved mineral parageneses, and this supports the concept that Fe-Ti oxide-rich magmas percolated through olivine gabbros.
Project(s):
Ocean Drilling Program (ODP)
Coverage:
Latitude: -32.723210 * Longitude: 57.266010
Date/Time Start: 1997-10-24T13:45:00 * Date/Time End: 1997-12-01T19:00:00
Minimum DEPTH, sediment/rock: 517.62 m * Maximum DEPTH, sediment/rock: 1490.16 m
Event(s):
176-735B * Latitude: -32.723210 * Longitude: 57.266010 * Date/Time Start: 1997-10-24T13:45:00 * Date/Time End: 1997-12-01T19:00:00 * Elevation: -720.6 m * Penetration: 1508 m * Recovery: 865.99 m * Location: Indian Ocean * Campaign: Leg176 * Basis: Joides Resolution * Method/Device: Drilling/drill rig (DRILL) * Comment: 122 cores; 1003.2 m cored; 504.8 m drilled; 86.3 % recovery
Comment:
Sediment depth is given in mbsf. More geochemical data on Hole 176-735B can be found in Tables 1-2 of Holm et al. (2002, doi:10.1016/S0009-2541(01)00364-3) dataset: doi:10.1594/PANGAEA.705251.
Parameter(s):
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
2423 data points
Download Data
View dataset as HTML (shows only first 2000 rows)