Primordial Pb, radiogenic Pb and lunar soil maturity

Conference · Sun Jan 01 00:00:00 EST 1978

OSTI ID:6683882

Reed, Jr, G W; Jovanovic, S

The soil maturity index I/sub s//FeO does not apply to either /sup 204/Pb/sub r/ or C/sub hyd/; both are directly correlated with the submicron Fe/sup 0/(I/sub s/) content. They act as an index of soil maturity which is independent of soil composition. In contrast to primordial Pb, radiogenic Pb is lost during soil maturation. Radiogenic Pb is present in mineral grains and may be lost by solar wind sputtering (or volatilization) and not resupplied. /sup 204/Pb coating grain surfaces acts as a reservoir to provide the /sup 204/Pb being extracted in the Fe/sup 0/ formation process. Venting or some other volatile source may replenish the surface /sup 204/Pb. 1 figure.

• Research Organization: Argonne National Lab., IL (USA)
• DOE Contract Number: W-31-109-ENG-38
• OSTI ID: 6683882
• Report Number(s): CONF-780314-7; TRN: 78-016536
• Resource Relation: Conference: 9. lunar science conference, Houston, TX, USA, Mar 1978
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
LUNAR MATERIALS
CHEMICAL COMPOSITION
MATURATION
LEAD 204
SOLAR WIND
SPUTTERING
ALPHA DECAY RADIOISOTOPES
EVEN-EVEN NUCLEI
HEAVY NUCLEI
HOURS LIVING RADIOISOTOPES
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
LEAD ISOTOPES
NUCLEI
RADIOISOTOPES
SOLAR ACTIVITY
YEARS LIVING RADIOISOTOPES
640107* - Astrophysics & Cosmology- Planetary Phenomena