andesite in a sentence

Examples

1. Built during the Quaternary period, it is composed of basaltic andesite.
2. Dykes have outcrops of trachytic andesite, dacite and rhyodacite.
3. Common surface rocks include basalt, andesite, pumice, and obsidian.
4. Andesites contain quartz and dacites-rhyodacites contain sanidine megacrysts.
5. Guallatiri has erupted andesite, dacite and rhyolite, with dacite dominating.
6. Eruption products on Escalante and Sairecabur include andesite and dacite.
7. Andesite lava flows from Pilisca underlie the Ciomadul deposits in some places.
8. One andesite lava flow has generated several subsidiary sulfur flows.
9. Basaltic andesite and minette form about 50 % of all exposed rocks.
10. Rocks erupted in the field are basaltic andesite and hawaiite.