1. Bytownite is also only found in gabbros, whereas labradorite is found in gabbros, basalts, and anorthosites

2. These rocks occur as small dikes or isolated veins within cumulus gabbros.

3. Rocks of the Batholith range from undersaturated gabbros through to felsic granites, but …

4. According to the scientists, the biggest process active on Earth is the intrusion of gabbros.

5. The granophyres and less weathered acidic rocks are moderately strong while the gabbros are the weakest materials.

6. ¶To enhance the ability to distinguish tholeiitic from alkalic magma parentages by mineral compositions, I determined trace-element abundances in plagioclase separated from xenolithic gabbros of Mauna Kea volcano. These gabbros have origins in tholeiitic and alkalic magmas of the Hamakua postshield stage of Mauna Kea volcanism.

7. Compositional layering and mineral orientations marked by spinel clusters in the dunites and by acicular amphiboles in the marginal gabbros are parallel to the contacts.

8. Augite is an important rock-forming mineral in many igneous rocks, especially in gabbros and basalts, and is also found in some hydrothermal metamorphic rocks

9. Whereas most of the complex consists of salic rocks (syenites, nepheline syenites and alkali granites) a spectrum of intermediate rock types (monzonites, monzodiorites and alkali diorites) grades to alkali gabbros.

10. Augite, the most common pyroxene mineral (a silicate of calcium, magnesium, iron, titanium, and aluminum). It occurs chiefly as thick, tabular crystals in basalts, gabbros, andesites, and various other dark-coloured igneous rocks