Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
A New Pt-190-He-4 method of native platinum age determination. / Shukolyukov, Yu. A.; Yakubovich, O. V.; Gorokhovskii, B. M.; Korneev, S. I.; Cherkashin, I. A.
в: Doklady Earth Sciences, Том 441, № 1, 11.2011, стр. 1579-1582.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - A New Pt-190-He-4 method of native platinum age determination
AU - Shukolyukov, Yu. A.
AU - Yakubovich, O. V.
AU - Gorokhovskii, B. M.
AU - Korneev, S. I.
AU - Cherkashin, I. A.
PY - 2011/11
Y1 - 2011/11
N2 - A new method of determining the age of native platinum based on alpha-radioactivity of one of its natural isotopes Pt-190 is proposed. Due to a special form of occurrence of radiogenic helium in the crystal lattice of native metals as a helium cluster-bubbles, the stability of Pt-190-He-4 of the isotope system is extremely high in the natural environment. To check the efficiency of the proposed Pt-190-He-4 method of isotope geochronology, six independent mineral aggregates of native platinum from chromite-bearing dunites of the southern part of platinum-bearing zonal Galmoenan dunite-cllinopyroxenite-gabbro plutonic complex (Koryak-Kamchatka belt, Russia) were analyzed. The age calculated by the tangent of the Pt-190-He-4 isochrone slope angle equals 69.5 +/- 4.9 mln years. The obtained age value coincides with the results of isotope datings, which were made previously by different methods of isotope geochronology.
AB - A new method of determining the age of native platinum based on alpha-radioactivity of one of its natural isotopes Pt-190 is proposed. Due to a special form of occurrence of radiogenic helium in the crystal lattice of native metals as a helium cluster-bubbles, the stability of Pt-190-He-4 of the isotope system is extremely high in the natural environment. To check the efficiency of the proposed Pt-190-He-4 method of isotope geochronology, six independent mineral aggregates of native platinum from chromite-bearing dunites of the southern part of platinum-bearing zonal Galmoenan dunite-cllinopyroxenite-gabbro plutonic complex (Koryak-Kamchatka belt, Russia) were analyzed. The age calculated by the tangent of the Pt-190-He-4 isochrone slope angle equals 69.5 +/- 4.9 mln years. The obtained age value coincides with the results of isotope datings, which were made previously by different methods of isotope geochronology.
KW - ISOTOPE
KW - SYSTEM
U2 - 10.1134/S1028334X11110304
DO - 10.1134/S1028334X11110304
M3 - статья
VL - 441
SP - 1579
EP - 1582
JO - Doklady Earth Sciences
JF - Doklady Earth Sciences
SN - 1028-334X
IS - 1
ER -
ID: 14719595