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Pacific NW Geologic Mapping Project

Geologic maps of the North Cascades

TKwb-1. Disrupted sandstone, greenstone, and light-colored dikes in argillite matrix, rocks of western mélange belt (TKwb), South Fork Stillaguamish River [SRsw]. This photo is figure 14 in the accompanying report (sheet 2).
Other photos that show unit TKwb:

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Photo Indices: Captions (Additional photos home) | Map | Young rocks and deposits | Older rocks west | Older rocks east