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...n the likelihood of shale smear continuity. Based on their observations of abrasion smears in a lithified sequence, they define the shale smear factor (SSF) as ...orresponding effect on the calculated SSF). SSF thus models the profile of abrasion-type smears. From a study of 80 faults (excluding composite smears), Lindsa

...tance-tapering of shear-type smears, whereas method (c) models the form of abrasion smears. ...y et al.<ref name=Lindsay /> recognized three types of shale smear: shear, abrasion, and injection.

...well bore. Cuttings are liberated promptly into the mud with a minimum of abrasion by the bit. Consequently, the cuttings have sharp edges and look fresh; the

...ell-sorted and well-rounded rocks in which the allochems underwent intense abrasion.

...ic material before it is buried. This can include biodegradation, physical abrasion, and chemical changes related to Eh and pH in the water column and in sedim

...ain minerals such as quartz, feldspar and mica produced as a result of the abrasion action of the wind. These can get dissolved in the blood stream causing dam