| 31. | The drier the argillite becomes, the more danger there is of flaking or cracking during the carving process.
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| 32. | The fault separated graphitic phyllite in the east from metasiltstone, argillite, quartz sandstone conglomerate on the west.
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| 33. | The two units meet as a saddle between the twin peaks of meta-argillite / phyllite and granite.
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| 34. | The North Siberian Lowland is formed by marine and ice-laid deposits, underlaid with sandstones and argillites.
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| 35. | Propylite-like degradation as well as veins contained inside of rock that has been heavily degraded to argillite.
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| 36. | The beds of puddingstone are complexly interbedded with layers of massive diamictite and laminated and graded argillite and sandstone.
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| 37. | To the north, east and south is a complex of Pennsylvanian age argillite, chert, diabase and greywacke.
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| 38. | Bourl�mont is mainly composed of red sandstone, but there is also a presence of argillite, quartzite and shale.
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| 39. | The Brookline Member of the Roxbury Conglomerate is the classic cobble conglomerate beds interbedded with beds of argillite and sandstone.
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| 40. | These very early argillite pieces depict traditional Haida images normally seen on totem poles, masks, rattles and spoon handles.
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