Major- and trace-element chemistry of DSDP Leg 70 Holes basalts and their alteration products
| Cobertura |
MEDIAN LATITUDE: 0.714563 * MEDIAN LONGITUDE: -44.620250 * SOUTH-BOUND LATITUDE: 0.000000 * WEST-BOUND LONGITUDE: -86.410000 * NORTH-BOUND LATITUDE: 1.613200 * EAST-BOUND LONGITUDE: 0.000000 * DATE/TIME START: 1979-11-20T00:00:00 * DATE/TIME END: 1979-11-29T00:00:00 |
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| Data(s) |
18/07/1983
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| Resumo |
Major and trace element compositions of basalts from the lower part of Hole 504B indicate their cogenetic nature. The cored sequence of interlayered pillow lavas and massive lava flows was produced by eruption of lavas, slightly variable in composition. Plagioclase and olivine crystallization in a shallow magma chamber, followed by small-scale fractionation at higher levels, is responsible for these variations. Except in highly fractured zones within the basement, there are systematic variations in the style and degree of rock alteration with depth. Trace element characteristics of altered rocks and secondary minerals indicate that progressive changes in sea water composition occurred as it reacted with basaltic crust. |
| Formato |
application/zip, 4 datasets |
| Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.816959 doi:10.1594/PANGAEA.816959 |
| Idioma(s) |
en |
| Publicador |
PANGAEA |
| Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
| Fonte |
Supplement to: Sharas'kin, Anatoly Ya; Migdisov, Areg A; Rostschina, I A; Miklishanski, Albert Z (1983): Major- and trace-element chemistry of Hole 504B basalts and their alteration products (Costa Rica Rift, Deep Sea Drilling Project Leg 70). In: Cann, JR; Langseth, MG; Honnorez, J; Von Herzen, RP; White, SM; et al. (eds.), Initial Reports of the Deep Sea Drilling Project (U.S. Govt. Printing Office), 69, 775-789, doi:10.2973/dsdp.proc.69.151.1983 |
| Palavras-Chave | ## = total iron; +; 70-504B; 70-507B; 70-510; Ag; Al2O3; Aluminium oxide; Antimony; Au; Cadmium; Caesium; Calcium oxide; CaO; Cd; Ce; Cerium; Chromium; Co; Cobalt; Copper; Cr; Cs; Cu; Deep Sea Drilling Project; Description; DRILL; Drilling/drill rig; DSDP; Eu; Europium; Event; Fe2O3; FeO; Glomar Challenger; Gold; H2O; Hafnium; Hf; Iron oxide, Fe2O3; Iron oxide, FeO; K2O; La; Lanthanum; Leg69; Leg70; Li; Lithium; Lu; Lutetium; Magnesium oxide; Manganese oxide; MgO; MnO; Na2O; Nd; Neodymium; North Pacific; North Pacific/MOUND; ODP sample designation; P2O5; Phosphorus oxide; Piece; Potassium oxide; Samarium; Sample; Sample code/label; Sample ID; Sb; Se; see reference(s); Selenium; Silicon dioxide; Silver; SiO2; Sm; Sodium oxide; Ta; Tantalum; Tb; Terbium; Th; Thorium; Thulium; TiO2; Titanium oxide; Tm; Total; V; Vanadium; Water in rock; Yb; Ytterbium; Zinc; Zn |
| Tipo |
Dataset |
