Published October 2005 | Version v1
Journal article Metadata-only

Okhotsk-Chukotskii volcanic belt: revision of age based on new 40Ar/39Ar and U-Pb isotopic data

Creators

  • 1. Dal'nevostochnyj Geologicheskij Inst. DVO RAN, Vladivostok (Russian Federation)
  • 2. Severo-Vostochnyj Kompleksnyj Nauchno-Issledovatel'skij Inst. DVO RAN, Magadan (Russian Federation)

Description

For refining the formation age of magmatic complexes of the Okhotsk-Chukotskii volcanic belt the U-Pb dating of zircons from rhyolite samples, previously studied by the methods of Ar-Ar, K-Ar and Rb-Sr dating, was conducted. It is shown that the results of dating for the same rhyolite samples provided by different methods are in a satisfactory agreement: 85 ± 0.5 mln. years (U-Pb), 81-84 mln. years (Ar-Ar), 86 ± 3 mln. years (K-Ar)

Abstract (Russian)

С целью уточнения возраста формирования магматических комплексов Охотско-Чукотского вулканогенного пояса проведено U-Pb-датирование цирконов из образцов риолита, ранее исследованных методами Ar-Ar, K-Ar и Rb-Sr-датирования. Показано, что результаты датирования одних и тех же образцов риолитов разными методами удовлетворительно сходятся: 85 ± 0.5 млн. лет (U-Pb), 81-84 млн. лет (Ar-Ar), 86 ± 3 млн. лет (K-Ar)

Additional details

Additional titles

Original title (Russian)
Охоцко-Чукоцкий вулканогенный пояс: ревизия возраста на основе новых

Publishing Information

Journal Title
Doklady Akademii Nauk - Rossijskaya Akademiya Nauk
Journal Volume
404
Journal Issue
5
Journal Page Range
p. 654-658
ISSN
0869-5652
CODEN
DAKNEQ

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
38038522
Subject category
S58: GEOSCIENCES;
Descriptors DEI
ARGON ISOTOPES; ISOTOPE DATING; LEAD ISOTOPES; POTASSIUM ISOTOPES; RHYOLITES; RUBIDIUM ISOTOPES; SIBERIA; STRONTIUM ISOTOPES; URANIUM ISOTOPES; ZIRCON
Descriptors DEC
AGE ESTIMATION; ALKALINE EARTH ISOTOPES; ASIA; EASTERN EUROPE; EUROPE; IGNEOUS ROCKS; ISOTOPES; MINERALS; ROCKS; RUSSIAN FEDERATION; SILICATE MINERALS; VOLCANIC ROCKS

Optional Information

Notes
14 refs., 2 figs., 1 tab.