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Cet album fait partie des albums

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↪ Metamorphic petrology of Pennsylvania
↪ Metamorphic rocks in Pennsylvania
↪ Metamorphic rocks in the United States by state by geochronology
↪ Metamorphism in Pennsylvania by geochronology
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Cet album photos contient les sous-albums suivants :

↪ Cambrian metamorphic rocks in Pennsylvania
↪ Devonian metamorphic rocks in Pennsylvania
↪ Mesozoic metamorphic rocks in Pennsylvania
↪ Neoproterozoic metamorphic rocks in Pennsylvania
↪ Ordovician metamorphic rocks in Pennsylvania
↪ Paleozoic metamorphic rocks in Pennsylvania
↪ Phanerozoic metamorphic rocks in Pennsylvania
↪ Precambrian metamorphic rocks in Pennsylvania
↪ Proterozoic metamorphic rocks in Pennsylvania
↪ Silurian metamorphic rocks in Pennsylvania