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agglomerate


agglomerate, Kootznahoo Formation, Southeastern Alaska
Agglomerate, Kootznahoo Formation, Southeastern Alaska. Credit: USGS
A coarse volcanic rock made up of both rounded and angular fragments of lava in a matrix of smaller, often ashy, particles. It thus combines the characteristics of conglomerates and breccias.


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   • GEOLOGY AND PLANETARY SCIENCE


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