Major and trace element composition in the Central Indian Ocean Basin ferrobasalts (Table 2, 3)
Cobertura |
MEDIAN LATITUDE: -12.069990 * MEDIAN LONGITUDE: 77.296670 * SOUTH-BOUND LATITUDE: -13.333300 * WEST-BOUND LONGITUDE: 76.500000 * NORTH-BOUND LATITUDE: -11.000000 * EAST-BOUND LONGITUDE: 78.000000 * MINIMUM DEPTH, sediment/rock: 0 m * MAXIMUM DEPTH, sediment/rock: 0 m |
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Data(s) |
30/11/2007
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Resumo |
We report the occurrence of ferrobasalts recovered from the Central Indian Ocean Basin crust generated at the Southeast Indian Ridge during a phase of moderate to fast spreading accretion (~110-190 mm/yr, full rate).The rocks are rich in plagioclase, FeO* (13/19 %), and TiO2 (2.27/2.76 %), poor in olivine and MgO (3.44/6.20%), and associated with topographic highs and increased amplitude magnetic anomalies corresponding to chrons A25 and A24. We suggest that secon dary eruptions from ancient N-MORB magma, which may have been trapped at a shallow depth in a horizon of neutral buoyancy, could have produced the ferrobasalts. |
Formato |
text/tab-separated-values, 174 data points |
Identificador |
https://doi.pangaea.de/10.1594/PANGAEA.670932 doi:10.1594/PANGAEA.670932 |
Idioma(s) |
en |
Publicador |
PANGAEA |
Direitos |
CC-BY: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted |
Fonte |
Supplement to: Iyer, SD; Mukhopadhyay, R; Popko, DC (1999): Ferrobasalts from the Central Indian Ocean Basin. Geo-Marine Letters, 18(4), 297-304, doi:10.1007/s003670050083 |
Palavras-Chave | #Aluminium oxide; Barium; Calcium oxide; Chromium; CIOB; Cobalt; Copper; Depth, bathymetric; DEPTH, sediment/rock; Dredge; DRG; Indian Ocean; Iron oxide, FeO; LATITUDE; Lithology/composition/facies; LONGITUDE; Magnesium oxide; Manganese oxide; Nickel; Phosphorus oxide; Potassium oxide; Sample code/label; Sample comment; Silicon dioxide; Sodium oxide; Titanium oxide; Vanadium; Yttrium; Zinc; Zirconium |
Tipo |
Dataset |