Traces of heavy and superheavy cosmic nuclei in olivins of extraterrestial origin
- 1. Bylgarska Akademiya na Naukite, Sofia. Inst. za Yadrena Izsledvaniya i Yadrena Energetika
- 2. Joint Inst. for Nuclear Research, Dubna (USSR)
Description
The paths of traces of WH nuclei from cosmic rays have been measured in olivines from the meteorites Maryalakhti, Eagle Stein, Liposki khutor with radiation ages 175, 45 and 220 million years respectively. 3 cm3 olivines of these meteorites have been examined and more than 500 traces of nuclei with Z(>=)90 have been found measured including 3 traces 1.5-1.8 times longer than the traces created by the uranium and thorium nuclei. These traces may be left by nuclei with Z(>=)110. The crystals were chosen from localizations situated at 2-7 cm, 8-9 cm and 10-12 cm from the outside atmospheric surface of the meteorite. The abundancy of the Z(>=)50 nuclei in gigantic cosmic rays, averaged for a period of (<=) 200 millions of years has been compared with the distribution of the elements in the substances from the Solar system. A new value has been found for the hypothetical superheavy elements Z(>=)110 in galactic cosmic rays. It is 1.4 x 10 -9 from that of the iron group nuclei. (authors)
Additional details
Additional titles
- Original title (Russian)
- Следы тяжелых и сверхтяжелых космических ядер в оливинах внеземного происхождения
Publishing Information
- Journal Title
- Bulg. J. Phys.
- Journal Volume
- 9
- Journal Issue
- 3
- Series
- Bulg. J. Phys.
- Journal Page Range
- 246-259
- ISSN
- 0323-9217
INIS
- Country of Publication
- Bulgaria
- Country of Input or Organization
- Bulgaria
- INIS RN
- 15004563
- Subject category
- S79: ASTROPHYSICS, COSMOLOGY AND ASTRONOMY;
- Resource subtype / Literary indicator
- Numerical Data
- Descriptors DEI
- ANNEALING; COSMIC RADIATION; ELEMENT ABUNDANCE; EXPERIMENTAL DATA; HEAVY NUCLEI; METEORITES; OLIVINE; TRACE AMOUNTS; TRANS 104 ELEMENTS
- Descriptors DEC
- ALKALINE EARTH METAL COMPOUNDS; DATA; ELEMENTS; HEAT TREATMENTS; INFORMATION; IONIZING RADIATIONS; IRON COMPOUNDS; IRON SILICATES; MAGNESIUM COMPOUNDS; MAGNESIUM SILICATES; MINERALS; NUCLEI; NUMERICAL DATA; OXYGEN COMPOUNDS; QUANTITY RATIO; RADIATIONS; SILICATES; SILICON COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; TRANSPLUTONIUM ELEMENTS; TRANSURANIUM ELEMENTS