Clayton, Donald W.2018-12-182018-12-181977Morgan, John Adrian. "Cosmic ray muon production of isotopic anomalies in the Earth's crust." (1977) Master’s Thesis, Rice University. <a href="https://hdl.handle.net/1911/104102">https://hdl.handle.net/1911/104102</a>.https://hdl.handle.net/1911/104102The recent discovery of naturally occurring radioactive niobium isotopes, of atomic weight 92 and 94, in commercially prepared niobium admits an explanation in terms of production by the capture of cosmic ray muons by terrestrial molybdenum, and encourages the examination of (u-,xn) mechanisms for their possible role in the origin of other trace isotopic effects.107 ppengCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.ThesisRICE1729reformatted digitalThesis Sp. Sci. 1977 Morgan