Published April 8, 1983
| Version v1
Journal article
Strontium isotope fractionation in the Kiglapait intrusion
Description
The initial ratio of strontium-87 to strontium-86 rises systematically from 0.70395 to 0.70662 over the upper 10 percent of the Kiglapait layered intrusion. This ratio is strongly correlated with potassium and rubidium. Contamination, exchange, and magma mixing fail to account for the increase, which is ascribed to the imperfect retention of radiogenic strontium-87 in feldspar-like structural units of the melt inherited from the magma source. These accidents in chemical discrimination persist most readily in anhydrous melts. 1 figure, 1 table
Additional details
Publishing Information
- Journal Title
- Science (Washington, D.C.)
- Journal Volume
- 220
- Series
- Science (Washington, D.C.).
- Journal Page Range
- 193-195
- ISSN
- 0036-8075
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 14791898
- Subject category
- S58: GEOSCIENCES;
- Descriptors DEI
- FELDSPARS; IGNEOUS ROCKS; ISOTOPE RATIO; NATURAL RADIOACTIVITY; NEWFOUNDLAND; POTASSIUM; RUBIDIUM 87; SEPARATION PROCESSES; STRONTIUM 86; STRONTIUM 87
- Descriptors DEC
- ALKALI METALS; BETA DECAY RADIOISOTOPES; BETA-MINUS DECAY RADIOISOTOPES; CANADA; DEVELOPED COUNTRIES; ELECTRON CAPTURE RADIOISOTOPES; ELEMENTS; EVEN-EVEN NUCLEI; EVEN-ODD NUCLEI; HOURS LIVING RADIOISOTOPES; INTERMEDIATE MASS NUCLEI; ISOMERIC TRANSITION ISOTOPES; ISOTOPES; METALS; MINERALS; NORTH AMERICA; NUCLEI; ODD-EVEN NUCLEI; RADIOACTIVITY; RADIOISOTOPES; ROCKS; RUBIDIUM ISOTOPES; STABLE ISOTOPES; STRONTIUM ISOTOPES; YEARS LIVING RADIOISOTOPES