Published October 1997 | Version v1
Journal article Metadata-only

Isotopic composition of late neogene K-Na alkaline basalts of eastern Kamchatka: indicators of the heterogeneity of the Mantle magma sources

Creators

  • 1. Inst. vulkanicheskoj geologii i geokhimii DVO RAN, Petropavlovsk-Kamchatskij (Russian Federation)
  • 2. Inst. geokhimii i analiticheskoj khimii im. V.I. Vernadskogo RAN, Moscow (Russian Federation)
  • 3. Kornel'skij universitet, Itaka (United States)

Description

Isotopic composition of Sr, O, Nd, and Pb was determined in K-Na alkaline gabbroids and basaltoids that formed in eastern Kamchatka during Middle Miocene (gabbroids of the sub volcanic complex) and Late Miocene (basaltoids of the volcanic complex) time, before the origin of the Eastern Kamchatka Volcanic Belt. Isotopic data provide further evidence that the sources of the late Cenozoic volcanics of the within-plate and island-arc geochemical types were different

Additional details

Additional titles

Original title (Russian)
Изотопный состав поздненеогеновых К-На-щелочных базальтоидов Восточной Камчатки: отражение гетерогенности Мантийного источника магм

Publishing Information

Journal Title
Geokhimiya
Journal Issue
no.10
Journal Page Range
p. 1005-1018
ISSN
0016-7525
CODEN
GEOKAQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
30019589
Subject category
S58: GEOSCIENCES;
Descriptors DEI
BASALT; GEOCHEMISTRY; ISOTOPE RATIO; KAMCHATKA; LEAD ISOTOPES; MAGMA; NATURAL OCCURRENCE; NEODYMIUM ISOTOPES; OXYGEN 18; STRONTIUM 86; STRONTIUM 87
Descriptors DEC
ALKALINE EARTH ISOTOPES; BETA DECAY RADIOISOTOPES; CHEMISTRY; EASTERN EUROPE; ELECTRON CAPTURE RADIOISOTOPES; EUROPE; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HOURS LIVING RADIOISOTOPES; IGNEOUS ROCKS; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; LIGHT NUCLEI; NUCLEI; OXYGEN ISOTOPES; RADIOISOTOPES; ROCKS; RUSSIAN FEDERATION; STABLE ISOTOPES; STRONTIUM ISOTOPES

Optional Information

Notes
31 refs., 4 tabs., 11 figs.