Nosy-Be, Madagascar

Nosy-Be Volcano

Volcano Type: Cinder cones
Volcano Status: Holocene
Last Known Eruption: Unknown
Summit Elevation: 214 m    702 feet
Latitude: 13.32°S *   13°19’0″S
Longitude: 48.48°E   48°29’0″E

Nosy-Be island off the NW coast of Madagascar contains very recent basaltic lava flows from well-preserved cinder cones. Many large crater lakes are found in the central part of the island. Nosy-Be volcanics, which are dominantly of low-silica foiditic compositions, overlie Mesozoic limestones and other sedimentary rocks. Two periods of activity occurred at Nosy-Be. Initial eruptions of fluid lava flows from the western side of the massif were followed by the construction of numerous strombolian cinder cones on the western plain. Little is known about the age of the volcanic field, and the only K-Ar dates are Tertiary in age, but the Nosy-Be volcanics were mapped as recent.

Nosy-Be, Madagascar (Bettina Neuefeind)

Nosy-Be, Madagascar (Bettina Neuefeind)

Nosy-Be, Madagascar (Bettina Neuefeind)

Nosy-Be, Madagascar (Bettina Neuefeind)

Sunset in Nosy-Be (Bettina Neuefeind)

Sunset in Nosy-Be (Bettina Neuefeind)

Area in Nosy-Be (Bettina Neuefeind)

Area in Nosy-Be (Bettina Neuefeind)

Shore (Bettina Neuefeind)

Shore (Bettina Neuefeind)

Puddle of mud (Bettina Neuefeind)

Puddle of mud (Bettina Neuefeind)

Originally posted 2010-10-19 04:26:11.