Engineering topics

Black, L. P.

Publications and source records attributed to Black, L. P..

4 records

NASA NTRS1985

Dating Archean zircon by ion microprobe: New light on an old problem

Ion microprobe analysis of zircons from three sites (Watersmeet Dome in northern Michigan, Mount Sones in eastern Antarctica, and Mount Narryer in western Australia) is discussed. Implications of the results to Archean geochronology and early Earth crust composition are addressed.

Williams, I. S.↗

NASA NTRS1971

Lead isotopes and volatile transfer in the lunar soil

Lead isotopes volatile transfer in Apollo 11 and 12 lunar soil samples, discussing lunar age estimates

Black, L. P.↗

NASA NTRS1970

Mass-spectrometry

Mass spectrometric analyses of meteoritic and lunar samples containing lead and thallium

Black, L. P.↗

NASA NTRS1970

Lead and thallium isotopes in Mare Tranquillitatis surface material

Lead and thallium isotopic compositions of Apollo 11 fines compared with meteorites and earth for lunar surface age determination

Black, L. P.↗