A complex pattern of hundres of erosion gullies characterize the morphology of the outer slopes of t...
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Sand-filled valley radiate from the cone of Benbow crater. (Photo: Tom Pfeiffer)
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Erosion valley at the feet of Benbow crater leading into the flat caldera. (Photo: Tom Pfeiffer)
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The smoking crater of Benbow seen from the air. (Photo: Tom Pfeiffer)
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Ambrym's volcanic gas plume rich in bluish SO2 drifting eastwards. (Photo: Tom Pfeiffer)
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View of the southern part of the caldera with a young lava flow (1988) visible by its brownish color...
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Vertical view on a section of Marum crater (Photo: Tom Pfeiffer)
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The complex Marum crater with its active lava pond (left) and the main crater Mbwelesu (right) as we...
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Clear view onto the lava lake inside Marum's west crater. (Photo: Tom Pfeiffer)
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The lava lake in Marum's west crater, and smoking Niri Mbwelesu crater containing another active ven...
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The complex of Marum crater and its surrounding pit craters: Mbwelesu (l), Marum's west pit with the...
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Oblique aerial view onto the complex of Marum crater and strongly degassing Niri Mbwelesu. (Photo: T...
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View onto Marum's lava lake. (Photo: Tom Pfeiffer)
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The lava lake in Marum's west crater. (Photo: Tom Pfeiffer)
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The bizarre inner steep crater walls of Marum, recording the history of lava fountaining and lava la...
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Aerial view of Marum crater from the north. Niri Mbwelesu crater left and the crater with the lava l...
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