Shiprock
Radiometric age determinations of the minette establish that these volcanic rocks solidified about 27 million years ago. Shiprock is in the northeastern part of the Navajo Volcanic Field - a field that includes intrusions and flows of minette and other unusual igneous rocks that formed about 25 million years ago.
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Shiprock, New Mexico
Navajo Nation
Dec 2016
Shiprock
Radiometric age determinations of the minette establish that these volcanic rocks solidified about 27 million years ago. Shiprock is in the northeastern part of the Navajo Volcanic Field - a field that includes intrusions and flows of minette and other unusual igneous rocks that formed about 25 million years ago.
Follow on Instagram @dpsager
Shiprock, New Mexico
Navajo Nation
Dec 2016