Magmatism of the Shatsky Rise

Author(s): Kashintsev, G. L.
Author Affiliation(s): Primary:
Russian Academy of Sciences, Shirshov Institute of Oceanography, Moscow, Russian Federation
Volume Title: Oceanology
Source: Oceanology, 42(4), p.557-566. Publisher: MAIK Nauka/Interperiodica, Birmingham, AL, United States. ISSN: 0001-4370 CODEN: ONLGAE
Note: In English. 40 refs.; illus., incl. 4 tables
Summary: The magmatic rocks of the Shatsky Rise form two groups of rocks replacing one another in time. The earlier ferrotholeiites enriched in potassium compose large massifs. Trachybasalts form seamounts and neotectonic-ridges. The composition of the volcanites indicates that two sources of magmatism took part in their formation: a depleted source characteristic of the basalts of mid-ocean ridges and a "plume" source participating in the formation of oceanic plateaus.
Year of Publication: 2002
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
ODP Ocean Drilling Program
Key Words: 05 Petrology, Igneous and Metamorphic; Absolute age; Alkali basalts; Alkaline earth metals; Ar/Ar; Basalts; Chemical composition; Concentration; Cretaceous; Crust; DSDP Site 305; DSDP Site 306; DSDP Site 47; DSDP Site 49; DSDP Site 577; Deep Sea Drilling Project; Deep seismic sounding; Ferruginous composition; Genesis; Geochemistry; IPOD; Igneous rocks; Isotope ratios; Isotopes; Jurassic; Lead; Leg 132; Leg 32; Leg 6; Leg 86; Lower Cretaceous; Magmatism; Magnetic properties; Mesozoic; Metals; Mid-ocean ridges; Nd-144/Nd-143; Neodymium; Neotectonics; North Pacific; Northwest Pacific; ODP Site 810; Ocean Drilling Program; Ocean floors; Oceanic crust; Pacific Ocean; Pb-207/Pb-204; Petrography; Plumes; Potassic composition; Radioactive isotopes; Rare earths; Seamounts; Shatsky Rise; Sr-87/Sr-86; Stable isotopes; Strontium; Tectonics; Tholeiite; Trachybasalts; Volcanic rocks; West Pacific
Coordinates: N310326 N322524 E1575045 E1345630
N200000 N410000 E1800000 E1540000
N322121 N435538 E1641633 E1513743
Record ID: 2003000306
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