Experimentally reproduced textures and mineral chemistries of high-titanium mare basalts.
Abstract
Many of the textures, morphologies, and mineral chemistries of the high-titanium mare basalts have been experimentally duplicated using single-stage cooling histories. Lunar high-titanium mare basalts are modeled in a 1 m thick gravitationally differentiating flow based on cooling rates, thermal models, and modal olivine contents. The low-pressure equilibrium phase relations of a synthetic high-titanium basalt composition were investigated as a function of oxygen fugacity, and petrographic criteria are developed for the recognition of phenocrysts which were present in the liquid at the time of eruption.
- Publication:
-
Lunar and Planetary Science Conference Proceedings
- Pub Date:
- 1975
- Bibcode:
- 1975LPSC....6..997U
- Keywords:
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- Basalt;
- Chemical Composition;
- Lunar Maria;
- Microstructure;
- Minerals;
- Titanium;
- Crystallization;
- Magma;
- Olivine;
- Petrology;
- Phase Diagrams;
- Pyroxenes;
- Textures;
- Lunar and Planetary Exploration