A lone volcano rests in the ocean at the head of a seamount…

Questions

A lоne vоlcаnо rests in the oceаn аt the head of a seamount chain (see the volcanoes map). Inspect sample 3 taken from this area to better understand what is happening at this location: Above: Image of rock in the environment Visual Description A large basaltic lava formation outdoors. The rock surface is dark grey to black and is patterned with distinct, curved, parallel ridges that radiate outward in sweeping arcs, creating a striking ripple-like or corded appearance across the surface. These curved lines resemble frozen waves or thick ropes of lava and are characteristic of ropy or pāhoehoe lava textures. The ridges are closely spaced and continuous, showing the direction in which the molten lava once flowed before solidifying.   Above: Image of rock sample taken from location Visual Description The rock is dark grey to nearly black, with scattered patches of rusty reddish-brown tones visible inside some cavities. Its most striking feature is its highly porous texture. The entire surface is covered in numerous small to medium-sized holes, or vesicles, giving it a sponge-like appearance. These holes vary in size and shape: some are tiny pinholes, while others are larger, rounded openings several millimetres across. Many of the cavities penetrate into the interior of the rock, creating depth and shadow. The surface appears rough and brittle, with sharp protrusions between the holes. Light reflects slightly off some edges, but overall the rock has a matte finish. The rock’s structure suggests it formed from gas-rich lava that cooled quickly, trapping bubbles inside.