Major and trace element content of the 17 lithostratigraphic units recovered during DSDP Leg 49 (Table 1) ...

• Main Authors: Tarney, J, Saunders, Andrew D, Bougault, Henri, Joron, Jean Louis, Treuil, M, Cann, Joe R
• Format: Dataset
• Language: English
• Published: PANGAEA 1979
• Subjects: Event label; Latitude of event; Longitude of event; Elevation of event; Sample code/label; Sample code/label 2; Silicon dioxide; Titanium dioxide; Aluminium oxide; Iron oxide, Fe2O3; Iron oxide, FeO; Manganese oxide; Magnesium oxide; Calcium oxide; Sodium oxide; Potassium oxide; Phosphorus pentoxide; Water in rock; Carbon dioxide; Magnesium number; Scandium; Vanadium; Chromium; Cobalt; Nickel; Rubidium; Strontium; Yttrium; Zirconium; Niobium; Caesium; Lanthanum; Cerium; Neodymium; Samarium; Europium; Gadolinium; Terbium; Thulium; Ytterbium; Lutetium; Hafnium; Tantalum; Thorium; Uranium; Drilling/drill rig; DSDP/ODP/IODP sample designation; X-ray fluorescence XRF; Instrumental neutron activation analysis INAA Reimann et al., 1998; Leg49; Mid-Atlantic Ridge; Reykjanes; Iceland; North Atlantic
• Online Access: https://dx.doi.org/10.1594/pangaea.710759; https://doi.pangaea.de/10.1594/PANGAEA.710759

IPOD Leg 49 recovered basalts from 9 holes at 7 sites along 3 transects across the Mid-Atlantic Ridge: 63°N (Reykjanes), 45°N and 36°N (FAMOUS area). This has provided further information on the nature of mantle heterogeneity in the North Atlantic by enabling studies to be made of the variation of basalt composition with depth and with time near critical areas (Iceland and the Azores) where deep mantle plumes are thought to exist. Over 150 samples have been analysed for up to 40 major and trace elements and the results used to place constraints on the petrogenesis of the erupted basalts and hence on the geochemical nature of their source regions. It is apparent that few of the recovered basalts have the geochemical characteristics of typical "depleted" midocean ridge basalts (MORB). An unusually wide range of basalt compositions may be erupted at a single site: the range of rare earth patterns within the short section cored at Site 413, for instance, encompasses the total variation of REE patterns previously ... : Trace elements were analysed by several investigators. Further relevant data see Tarney et al. (1979) data sets: doi:10.1594/PANGAEA.710816 ...