Geochemistry and minerals at DSDP Hole 76-534A
| Cobertura |
LATITUDE: 28.343300 * LONGITUDE: -75.381700 * DATE/TIME START: 1980-10-21T00:00:00 * DATE/TIME END: 1980-10-21T00:00:00 |
|---|---|
| Data(s) |
09/04/1983
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| Resumo |
Leg 76 sampled 31.5 m of basaltic basement at Deep Sea Drilling Project Hole 534A in the Blake-Bahama Basin. The basalts represent a short section of mineralogically uniform, sparsely plagioclase-phyric pillow flows, composed mainly of plagioclase, augitic clinopyroxene, iron-titanium oxides with variable amounts of alteration products (smectite ± carbonate ± quartz). Their major element chemistry is typical of mid-ocean ridge tholeiites and has normative compositions of olivine tholeiites. Mg/(Mg + Fe**2+) ratios range from 0.58 to 0.60, which suggests that these basalts are evolved compared to primitive mantle melts. |
| Formato |
application/zip, 3 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.809961 doi:10.1594/PANGAEA.809961 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Logothetis, John (1983): Petrography, mineralogy, and geochemistry of basalts from Hole 534A, Leg 76. In: Sheridan, RE; Gradstein, FM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 76, 713-717, doi:10.2973/dsdp.proc.76.134.1983 |
| Palavras-Chave | #-; 76-534A; Ab; Al(IV); Al(VI); Al2O3; Albite; Aluminium (IV); Aluminium (VI); Aluminium oxide; An; Anorthite; Ap; Apatite; Ca; Calcium; Calcium oxide; Calculated based on oxygen number; CaO; Carbon dioxide; Chr; Chromite; Chromium; Chromium(III) oxide; CIPW Norm; CO2; Cr; Cr2O3; Deep Sea Drilling Project; Di; Diopside; DRILL; Drilling/drill rig; DSDP; Electron microprobe; En; Enstatite; Fe; Fe2O3; Fe3O4; FeO; Ferrosilite; Fs; Glomar Challenger; H2O; Hyp; Hypersthene; ID; Identification; Ilm; Ilmenite; Iron 2+ and 3+; Iron oxide, Fe2O3; Iron oxide, FeO; K; K2O; Leg76; Lithology; Lithology/composition/facies; Magnesium; Magnesium oxide; Magnetite; Manganese; Manganese oxide; Mg; MgO; Minerals; Mn; MnO; Na; Na2O; Nickel oxide; NiO; North Atlantic/BASIN; ODP sample designation; Ol; Olivine; Or; Orthoclase; P2O5; Phosphorus oxide; Piece; Potassium; Potassium oxide; Quartz; Qz; Sample code/label; Si; Silicon; Silicon dioxide; SiO2; Sodium; Sodium oxide; Ti; TiO2; Titanium; Titanium oxide; Total; V2O5; Vanadium oxide; Water in rock; Wo; Wollastonite |
| Tipo |
Dataset |
