OSMIUM ISOTOPES IN THE AEROSOLS OF THE MANTLE VOLCANO MAUNA-LOA

被引：25
|
作者：
KRAHENBUHL, U
GEISSBUHLER, M
BUHLER, F
EBERHARDT, P
FINNEGAN, DL
机构：
[1] Laboratorium für Radiochemie, University of Bern, CH-3000 Bern 9
[2] Physikalisches Institut, University of Bern, CH-3012 Bern
[3] Los Alamos National Laboratory, Los Alamos, NM 87545
来源：
EARTH AND PLANETARY SCIENCE LETTERS | 1992年 / 110卷 / 1-4期
关键词：
D O I：
10.1016/0012-821X(92)90041-S
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
Aerosols and reactive gases from the spring 1984 eruption of Mauna Loa Volcano on Hawaii were collected and analyzed for osmium and its isotopic composition. The measured Os-187/Os-186 ratio of 1.14 +/- 0.03 is close to the ratio in matter with solar system Re/Os abundance. This result shows that the aerosols from Mauna Loa originated in the mantle and that their composition was not or only slightly influenced by their contact with the crust.
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页码：95 / 98
页数：4
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