We report on the measurement of the iron-57 Mossbauer spectra for volcanic rock taken from Cheju island. M. W. Lee/l/has extensively studied the composition of lava samples from Cheju island based on chemical analysis. We find that the volcanic rock o...
We report on the measurement of the iron-57 Mossbauer spectra for volcanic rock taken from Cheju island. M. W. Lee/l/has extensively studied the composition of lava samples from Cheju island based on chemical analysis. We find that the volcanic rock of Cheju island is composed of four principal minerals.
The quadrupole doublets observed and the temperature dependence of the recoilless fraction. taken between 77 to 297K. are used as signatures of the chemical form. and we report the variations in the geochemistry for samples taken from different portions of the island.