11. The knowledge of Heart Peaks is limited, especially its eruptive history. 12. The Bridge River Cones consist of small trachybasaltic and basaltic eruptive centers. 13. Within these wide-defining eruptive types are several subtypes. 14. Breadcrusted bomb fragments, was constructed during two periods of eruptive activity. 15. At least 23 eruptions have occurred throughout its eruptive history. 16. These different rock types provide evidence for different eruptive phases. 17. She conveys a mercurially eruptive spirit that makes Pauline mysterious and utterly captivating. 18. Level three signifies significant eruptive activity, while level two describes minor activity. 19. It has since alternated between eruptive and calm periods. 20. Diller believed he recognized two eruptive sequences, which each produced lava flows.
