Microfabric Analyses of Till
Microfabric analyses of a till, whereby the orientation of small fragments having directional properties is determined by means of a microscope, is a useful method of ascertaining the direction of movement of the ice that deposited the till. The method consists of obtaining an oriented sample of till, thin sectioning the sample in a horizontal and one or more vertical sections, and measuring the orientation of the elongated fragments in the horizontal plane and the inclination of the axes of the fragments in the vertical planes. The method is rapid, can be used to give additional detail where required, and gives results which are as reliable as those given by macrofabric studies done in the field.