Peat fabric and structure.

The results of various index tests and standard and scanning electron microscope examinations of Sphagnum and sedge peats form the basis for an investigation of peat fabric and structure.The volumetric and gravimetric relationships of a moderately humified Sphagnum peat are examined in detail, and phase diagrams are constructed for two Sphagnum peats with different degrees of humification. Tentative phase diagrams for a sedge peat are also presented.A brief examination is made of existing classification systems and of some aspects of the formation of peats.