Cape Verde volcanic archipelago - Ponta das Salinas and Sao Vicente organs.

Fogo Island has other volcanic landscapes than caldera and Pico do Fogo .

On the north coast of the island, the black sand beach of Ponta das Salinas is one of the most beautiful . A succession of creeks bordering basalt cliffs sculpted by wind and sea erosion. It dug a bridge in a basalt flow .
The place is popular for fishermen who shelter their boats. Protected from currents, Ponta das Salinas also has a natural pool where swimming is safe.
A cemetery is perched on the cliff overlooking the surf.

  Fogo - Ponta das Salinas , creeks lined with basalt cliffs - photo © Carole and Frederic Hardy 2013.

                                                Photo © Carole and Frederic Hardy 2013.

Fogo - Ponta das Salinas, an arch that gave its name to the place - photo © Carole and Frederic Hardy 2013.

            Fogo - basalt cliff with prismation - photo © Carole and Frederic Hardy 2013.

Sao Vicente has vertical dykes with a characteristic horizontal prismation.

After complete solidification , the lava flow continues to cool . This results in thermal shrinkage,  a reduction in volume and the genesis of fracture. These fractures start with the edges of the mass of lava to progress towards his heart .
The prisms formed end up perpendicular to the top and the base of the flow, with the possibility of heterogeneity .

In dykes against, by the cooling rate identical on both sides of the vein makes the prismation homogeneous with formation of continuous prisms through the dyke.

              Sao Vicente - basaltic dyke and prismation - photo © Carole and Frederic Hardy 2013.