Tuff and lava rock, Tuff Canyon; Big Bend National Park, TX. Tuff consists of volcanic ash with silica a major component. The tuff, which is Oligocene in age (the Oligocene occurred 24-34 million years ago), lies on top of the older Bee Mountain Basalt (erupted 34-30 million years ago. Tuff can be in the form of a friable ash as in the foreground or solidified into rock-like material as seen in the background. The cactus is the blind pear, Opuntia rufida.
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Details
Creative#:
TOP22265676
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
No
Right to Privacy:
No
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