Geochronology, geochemistry and tectonic implications of Xiongshan diabasic dike swarm, northern Fujian

Geochronology, geochemistry and tectonic implications of Xiongshan diabasic dike swarm, northern Fujian

Sm/Nd isotopic age determination showed that Xiongshan dike swarm was at 585.7 Ma±30 Ma. The trace element geochemistry and Sr/Nd/Pb isotope geochemistry studies indicate that the dike swarm was products of back-arc basin spreading ridge and the magma originated from the depleted mantle region which...

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Veröffentlicht in:Science China. Earth sciences 1997-08, Vol.40 (4), p.411-417
1. Verfasser: 任胜利 李继亮 周新华 孙敏
Format: Artikel
Sprache:eng
Schlagworte:
Age determination
back-arc
basin
Chronology
dike
Fijian
Geochemistry
Geochronology
Geochronometry
Geology
Isotopes
Lava
Liquids
Magma
northern
Paleozoic
petrochemistry
Rock intrusions
Sinian-early
Subduction
Subduction (geology)
swarm
Tectonics
Trace elements
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Zusammenfassung:Sm/Nd isotopic age determination showed that Xiongshan dike swarm was at 585.7 Ma±30 Ma. The trace element geochemistry and Sr/Nd/Pb isotope geochemistry studies indicate that the dike swarm was products of back-arc basin spreading ridge and the magma originated from the depleted mantle region which was metasomatized by LTLE-rich liquids/melts derived from subduction slab.
ISSN:1674-7313
1006-9313
1869-1897
1862-2801
DOI:10.1007/BF02877573