This blog focuses upon stylolites which are structures that either form during burial or by later tectonic movements and have a serrated appearance on rock surfaces.
A variety of recent and old structures can be found on the karst limestone blocks of the Natih Formation, Oman. These include solution enhanced joints, Rillenkarren and tension gashes.
Veins are useful indicators of the sense of shear - here we look at some calcite veins in limestone in Oman which have a sigmoidal geometry in places and indicate a sinistral sense of shear.