Ocotilla (Fouquieria splendens) and volcanic tuff,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. Ocotillos produce ephemeral leaves several times a year after desert rains,but always blooms in the spring | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Nature's Images, |
Bildgröße: | 4096 px × 2742 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
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