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Iron concretions (Bfcc) in a Douglas fir soil on Vancouver Island

Blocky structure in the Bt of the profile in slide #140; n.b. the ped, the pores and the argillaceous coating on the ped

Crumb structure of Ah in profile of slide #140, at Dunlap Observatory at Richmond Hill woodlot.

This section same as slide #201, but with xNicol; other was in ordinary light.

Thin section (x200) in Bt showing neo cutans

Thin section (x200) showing calcareous nodule in a ferro-argillaceous matrix; black areas are voids

Thin section same as #198, but with different light; dark areas are pores.

Thin section (x200) showing neo-cutan in a channel; white areas are pores.

Thin section in the Aej showing plasmic fabric

Thin section (x200) showing secondary carbonate deposition in the C of slide #140