Environmental Engineering Reference
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FIGURE 15 Isolated dune-patch deposits. Early Cambrian Lake Louise Formation, Gog Group,
southern Rocky Mountains, Canada. (A) Compound cross-stratified sandstone encased within inter-
calated mudstone and sandstone. (B) Cross-section view of intercalated thin-bedded sandstone and
mudstone containing relatively deep Rusophycus isp. ( Ru ), local Planolites montanus ( Pl )and Palaeo-
phycus isp. ( Pa ) . (C) Bedding-plane view(base) of Trichophycus venosus ( Tr ). (D)Bedding-plane view
(base) of Cruziana isp. ( Cr ), Rusophycus isp. ( Ru )and Phycodes isp. ( Ph ). (E) Deep Rusophycus isp.
( Ru ) at the soles of sandstone beds.
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