Thompson, Geoffrey; Humphris, Susan E; Schilling, Jean-Guy (1983): (Table 1) Basalt geochemsitry at DSDP Hole 72-516F [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.811425, Supplement to: Thompson, G et al. (1983): Petrology and geochemistry of basaltic rocks from Rio Grande Rise, South Atlantic: Deep Sea Drilling Project Leg 72, Hole 516F. In: Barker, PF; Carlson, RL; Johnson, DA; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 72, 457-466, https://doi.org/10.2973/dsdp.proc.72.115.1983
Always quote citation above when using data! You can download the citation in several formats below.
Abstract:
Basalts from Hole 516F, DSDP Leg 72 on the Rio Grande Rise are tholeiitic in character but differ from normal mid-ocean ridge basalts in the South Atlantic in higher concentrations of incompatible elements such as Ti, K, V, Sr, Ba, Zr, Nb, and light rare-earth elements and in lower concentrations of Mg, Cr, and Ni. They contrast with previously reported basalts from the Rio Grande Rise, which were highly alkalic in character. The Rio Grande Rise basalts from Hole 516F (age 84.5 Ma) are generally similar to basalts from the eastern end of the Walvis Ridge (80-100 Ma). It is suggested that they either originated, like the Walvis Ridge, from a mantle hot spot that is different from the present-day hot spot (Tristan da Cunha) and that has changed composition with time, or from a spreading center that was shallow and chemically influenced by the adjacent hot spot, similar to the present-day Mid-Atlantic Ridge near the Azores and Tristan da Cunha.
Project(s):
Deep Sea Drilling Project (DSDP)
Coverage:
Latitude: -30.276500 * Longitude: -35.285000
Date/Time Start: 1980-03-11T00:00:00 * Date/Time End: 1980-03-11T00:00:00
Minimum Elevation: -1313.0 m * Maximum Elevation: -1313.0 m
Event(s):
72-516F * Latitude: -30.276500 * Longitude: -35.285000 * Date/Time: 1980-03-11T00:00:00 * Elevation: -1313.0 m * Penetration: 1270.6 m * Recovery: 690.1 m * Location: South Atlantic/CONT RISE * Campaign: Leg72 * Basis: Glomar Challenger * Method/Device: Drilling/drill rig (DRILL) * Comment: 127 cores; 1092.5 m cored; 9 m drilled; 63.2 % recovery
Comment:
Blanks indicate "not analyzed."
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample code/label | Sample label | Thompson, Geoffrey | DSDP/ODP/IODP sample designation | ||
| 2 | Silicon dioxide | SiO2 | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a volatile-free basis after ignition at 1000°C |
| 3 | Titanium dioxide | TiO2 | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a volatile-free basis after ignition at 1000°C |
| 4 | Aluminium oxide | Al2O3 | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a volatile-free basis after ignition at 1000°C |
| 5 | Iron oxide, FeO | FeO | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | Total iron; on a volatile-free basis after ignition at 1000°C |
| 6 | Manganese oxide | MnO | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a volatile-free basis after ignition at 1000°C |
| 7 | Magnesium oxide | MgO | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a volatile-free basis after ignition at 1000°C |
| 8 | Calcium oxide | CaO | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a volatile-free basis after ignition at 1000°C |
| 9 | Sodium oxide | Na2O | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a volatile-free basis after ignition at 1000°C |
| 10 | Potassium oxide | K2O | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a volatile-free basis after ignition at 1000°C |
| 11 | Phosphorus pentoxide | P2O5 | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a volatile-free basis after ignition at 1000°C |
| 12 | Total | Total | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a volatile-free basis after ignition at 1000°C |
| 13 | Iron oxide, FeO | FeO | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 14 | Iron oxide, Fe2O3 | Fe2O3 | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 15 | Water in rock | H2O | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | H2O+, structural part, similar to LOI ; On a dried (110°C) basis |
| 16 | Water in rock | H2O | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | H2O-, hydration part |
| 17 | Carbon dioxide | CO2 | % | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 18 | Rubidium | Rb | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 19 | Scandium | Sc | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 20 | Vanadium | V | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 21 | Chromium | Cr | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 22 | Cobalt | Co | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 23 | Nickel | Ni | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 24 | Copper | Cu | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 25 | Zinc | Zn | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 26 | Strontium | Sr | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 27 | Barium | Ba | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 28 | Yttrium | Y | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 29 | Zirconium | Zr | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 30 | Niobium | Nb | mg/kg | Thompson, Geoffrey | X-ray fluorescence (XRF) | On a dried (110°C) basis |
| 31 | Lanthanum | La | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 32 | Cerium | Ce | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 33 | Neodymium | Nd | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 34 | Samarium | Sm | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 35 | Europium | Eu | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 36 | Gadolinium | Gd | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 37 | Terbium | Tb | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 38 | Dysprosium | Dy | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 39 | Thulium | Tm | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 40 | Ytterbium | Yb | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 41 | Lutetium | Lu | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 42 | Cobalt | Co | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 43 | Chromium | Cr | mg/kg | Thompson, Geoffrey | Element analysis, neutron activation (NAA) | On a dried (110°C) basis |
| 44 | Sodium oxide | Na2O | % | Thompson, Geoffrey | Element analysis, neutron activation (NAA) |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
511 data points