Browse Items (22 total)

Collection: (BKM) Belknap Mountains Ring Complex -- White Mountains, New Hampshire

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brecciated

contains clots of black spheroids

coarse grained, porphyritic

fine grained

abundant dark xenoliths

porphyritic, pink, coarse grained

contact with wall rock is sharp and with very thin, chilled margin

coarse grained

coarse grained, with large tabular slabs of float

banded, pink to gray color, sharp contact, some hydrothermal alteration has ocurred

fine grained trap with abundant fragments of brecciated syenite

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