Primordial Pb, radiogenic Pb and lunar soil maturation.
Abstract
Pb-204 is directly correlated with the reduced Fe measured by ferromagnetic resonance. A similar correlation has been noted for hydrolyzable carbon (Pillinger et al., 1974). An enrichment of these elements appears to have occurred during soil maturation. In contrast to Pb-204, radiogenic Pb is reported to be lost during soil maturation (Church et al., 1976). Radiogenic Pb is present in mineral grains and may be lost by solar wind sputtering (or volatilization) and not resupplied. Pb-204 coating grain surfaces acts as a reservoir to provide the Pb-204 being extracted in the reduced Fe formation process. Venting or some other volatile release mechanism may replenish the surface-related Pb-204.
- Publication:
-
Lunar and Planetary Science Conference Proceedings
- Pub Date:
- 1978
- Bibcode:
- 1978LPSC....9.2215R
- Keywords:
-
- Lead Isotopes;
- Lunar Evolution;
- Lunar Soil;
- Minerals;
- Radiogenic Materials;
- Granular Materials;
- Lead (Metal);
- Lunar Composition;
- Statistical Correlation;
- Trace Elements;
- 14047;
- 14049;
- 14163;
- 14259;
- 15031;
- 15101;
- 15505;
- 63501;
- 64501;
- 67460;
- 64801;
- 71501;
- 73141;
- 74220;
- 75080;
- 76241;
- AGGLUTINATES;
- LEAD;
- FERROMAGNETIC RESONANCE;
- SAMPLES;
- LUNAR;
- SOLAR WIND;
- SOIL MATURITY;
- MATURITY INDEX;
- RADIOISOTOPES;
- IRON;
- Lunar and Planetary Exploration; Moon;
- Moon:Local Properties