Sentence examples for mostly of volcanic from inspiring English sources

The country's abundant hot springs are mostly of volcanic origin.

A total of 29 tephra horizons are observed within the cover sediments (3 horizons in Unit I and 26 horizons in Unit II), with the tephra layers in Unit II being composed mostly of volcanic glass (Expedition 334 Scientists 2012).

The Philippine archipelago consists of more than 7,000 islands, mostly of volcanic origin, with a well known geological and plate tectonic history [ 1].

Sediments composed mostly or entirely of volcanic ash are commonly found adjacent to the island arcs and marginal trenches.

The exploration of the fauna associated with seamounts, underwater mountains of mostly volcanic origin, began over 50 years ago, after their initial discovery in the 1940s [1].

Of volcanic origin, Réunion consists mostly of rugged mountains in an advanced state of dissection by short torrential rivers.

Primary pores and fractures are mostly controlled by original eruption states, namely lithology of volcanic rocks.

The island has been mostly uninhabited since 1981, when its population was evacuated because of volcanic eruptions.

During one eruption, a magma composed mostly of sodium carbonate issued from a volcanic vent that had been erupting alkali basalts.

The houses of the old town of Clermont are mostly built of dark volcanic rock, as is the 13th-century cathedral.

Ash from eruptions of volcanic explosivity index 3 (VEI 3) and smaller pose mostly local hazards while eruptions of VEI ≥ 4 could disrupt trade, travel, and daily life in large parts of the region.