![](https://nthumb.tpgimages.com/mid2_ocom_img/c2NpZW5jZV9waG90bw==/4/2008041620/top_20080416202053_1469.jpg/TOP03207664.jpg)
Obsidian dome, eastern California. This pyroclastic material formed when slow-moving, silica-rich lava cooled rapidly. It was extruded around 550 years ago. The material is well- preserved because of the arid climate of the region.
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Details
Creative#:
TOP03207664
Source:
達志影像
Authorization Type:
RM
Release Information:
須由TPG 完整授權
Model Release:
N/A
Property Release:
N/A
Right to Privacy:
No
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