Browse Items (35 total)

  • Collection: (BB) Boulder Batholith Suite -- Montana

intrusive

massive, tabular, sharp-edged blocks

ignimbrite layer in a welded tuff

from large sill

basic

medium grained, medium gray w/ pinkish tint

BB.pdf

iron-stained

possibly crystal tuff

pre-batholith volcanic

Output Formats

atom, dcmes-xml, json, omeka-xml, rss2