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Warm spring water seeps out from the volcanic sand near sea level and creates a bizarre miniature landscape of canyons and stream valleys. (Photo: Tom Pfeiffer)
File: vanuatu_g15380.jpg | 1453 Hits Copyright: Tom Pfeiffer / www.volcano-photo.com --- Image found in Vanuatu May 2009: colors ... and in: Photo of the Day
Erosion by rain creates a myriad of small terraces in the ash layers. (Photo: Tom Pfeiffer)
File: ambrym_i0281a.jpg | 159 Hits Copyright: Tom Pfeiffer / www.volcano-photo.com
Walls of active craters are always very unstable. Debris has already deposited on the one-day old snow on the lower terrace inside the crater. (c)
File: est_e31469.jpg | 2676 Hits
--- Image found in Excursion on Etna - climbing the summit craters (Oct. 07)
Erosion gullies and white, hydrothermally altered rocks (Polyvotis crater of Nisyros volcano, Greece) (c)
File: nisyros_d23041.jpg | 3309 Hits
--- Image found in Nisyros March 2008: the volcano ... and in: Photo of the Day
Vulkane Italiens - order online 88 pages, brilliant color photos, German language - this beautifully illustrated guidebook is a perfect introduction and companion for all interested in Italy's rich and varied volcanic areas.
Volcano Special expedition Special tour to see the ongoing eruption of Shivleuch volcano. Max 6 participants, 5 nights on location, accompanied by our team and local volcanologists. Sign up deadline Sun 24 Feb 2019!
Pearl of the Aegean Santorini is one of the most beautiful islands in the world, famous for its breathtaking sea-filled caldera and picturesque villages. Discover its fascinating natural and cultural history on a relaxed walking study tour with us.