Pacific Ring of Fire Expedition. The vertical column in the center of the image, called a dike, rises from below sea level to the pinnacle at the top of the ridge. Interlaid massive lavas (darker horizontal bands) and ash-rich lava units (reddish) are also exposed on the islets of Maug.
Photo Category: Ocean exploration
Photo Location: Mariana Arc region, Western Pacific Ocean
Photo Date: 2004 April
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| Added On | 16th October 2015 |
| Viewed | 10 viewed |