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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 | 1451 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 | 3306 Hits
--- Image found in Nisyros March 2008: the volcano ... and in: Photo of the Day
Walking & Study tours VolcanoDiscovery's signature tours for small groups: Discover volcanoes and volcanic areas from close with an expert in their field! These tours have a broad mix of activities and interests from photography, walking, study travel, nature & culture.
Glossary of geologic terms A growing list of often illustrated explanations and definitions of geological terms and keywords, with focus on volcanology and seismology.
Photo Expeditions & Photography Tours We offer you a fine selection of photo tours to exceptional places guided by experienced photographers. These tours are ideal if you are interested in learning or improving photography or, if you are an experienced photographer yourself, to get to the best locations at the best times.