The case for at least three mare basalt magmas at the Luna 24 landing site.
Abstract
Petrographic and electron microprobe studies have been carried out for 1230 particles from the Luna 24 drill core. At least three mare basalts were distinguished on the basis of major and minor element chemical compositions of pyroxenes. Mg-rich monomineralic particles of olivine and pyroxene defined one major type. The other two magmas were identified by the Ti/(Ti + Cr) ratio at constant Fe/(Fe + Mg) ratio in pyroxenes derived from polymineralic igneous lithic fragments. Whole rock chemical analyses for V and Cr also provided evidence for these distinct magmas.
- Publication:
-
Mare Crisium: The view from Luna 24
- Pub Date:
- 1978
- Bibcode:
- 1978mcvl.conf..419N
- Keywords:
-
- Basalt;
- Lunar Landing Sites;
- Lunik Lunar Probes;
- Magma;
- Mineralogy;
- Petrology;
- Breccia;
- Lunar Rocks;
- Olivine;
- Pyroxenes;
- 24077;
- 47;
- 24109;
- 42;
- 24149;
- 51;
- 24174;
- 53;
- 24182;
- 49;
- 24210;
- 45;
- LUNA 24;
- MARE BASALTS;
- MONOMINERALIC PARTICLES;
- MAGMAS;
- PYROXENES;
- CHEMISTRY;
- GEOTHEMOMETRY;
- CORE TUBE SAMPLES;
- MAGNESIUM;
- Lunar and Planetary Exploration; Moon;
- Moon:Basalts