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Keywords
- chemical composition
- Cortlandt Complex
- gabbros
- Geochemistry
- Hudson River
- igneous rocks
- iron ores
- major elements
- metal ores
- metallogeny
- mineral composition
- mineral deposits, genesis
- mineral exploration
- New York
- norite
- Ordovician
- Paleozoic
- Peekskill New York
- petrography
- plutonic rocks
- textures
- United States
- Upper Ordovician
- Westchester County New York