New varieties of rocks such as " rhyodycite, alkal-olivine basalt, mugearite and ankaramite " are reported.
3.
The lavas from Guide are mostly alkalic basalt, hawaiite, mugearite with some pyroclastic flows near the top of the summit.
4.
Analysis of a " Jake M " ), after a NASA engineer, determined that the martian rock was very similar to terrestrial mugearite.
5.
The mineral content and elemental abundance indicates " Jake M " rock may be a mugearite, a sodium rich oligoclase-bearing basaltic trachyandesite.
6.
"' Gumdrop Seamount "'is a small seamount ( alkalic basalt, hawaiite, and mugearite; however, their ages have yet to be determined.
7.
A } } long lava flow, ranging from basalt to mugearite, issued from the base of the cone and travelled in a north-trending U-shaped valley on the eastern flank of The Black Tusk.
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