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Sujet
A group of 6 tent rocks at at the Kasha-Katuwe Tent Rocks National Monument
Légende
The Kasha-Katuwe Tent Rocks National Monument is a remarkable outdoor laboratory, offering an opportunity to observe, study, and experience the geologic processes that shape natural landscapes. The national monument, on the Pajarito Plateau in north-central New Mexico, includes a national recreation trail (see “Activities” below) and ranges from 5,570 feet to 6,760 feet above sea level. The cone-shaped tent rock formations are the products of volcanic eruptions that occurred 6 to 7 million years ago and left pumice, ash and tuff deposits over 1,000 feet thick. Tremendous explosions from the Jemez volcanic field spewed pyroclasts (rock fragments), while searing hot gases blasted down slopes in an incandescent avalanche called a “pyroclastic flow.” In close inspections of the arroyos, visitors will discover small, rounded, translucent obsidian (volcanic glass) fragments created by rapid cooling.
Info+
Photographe : Daniel Bayliss
Date
2007
Crédit
Photo12/Alamy/Daniel Bayliss
Notre référence
LMY20T04_B2W2X4
Utilisation
uniquement en France
Model release
Non
Property release
Non
Licence
Droits gérés
Format disponible
49,3Mo (1,8Mo) / 42,9cm x 28,8cm / 5072 x 3396 (300dpi)