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Petrogenesis of lunar rocks: rb-sr constraints and lack of h2o
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Gancarz, A. J. Albee, A. L. |
| Copyright Year | 1977 |
| Description | Rb and Sr isotopic data and other chemical data indicate major lunar differentiation at about 4.6 AE (AE = 10 to the 9th power years) and very limited subsequent differentiation. The constraints of limited differentiation after 4.6 AE and the apparent lack of H2O on the moon, when applied to the derivation and petrogenesis of lunar samples, suggest the following: (1) soil samples, breccias, metaclastic rocks, and feldspathic basalts represent mixtures of repeatedly modified clastic material, which was utimately derived from materials formed during the 4.6 AE differentiation; and (2) mare basalts crystallized from melts which formed by partial melting, and which developed without equilibrium between the melt and crystalline residuum. |
| File Size | 821406 |
| Page Count | 10 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19780004987 |
| Archival Resource Key | ark:/13960/t1gj49081 |
| Language | English |
| Publisher Date | 1977-01-01 |
| Access Restriction | Open |
| Subject Keyword | Astrophysics Strontium Lunar Evolution Petrology Lunar Geology Lunar Crust Selenology Rubidium Lunar Rocks Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Article |
