ABSTRACT
All the rock properties are determined by primary depositional characteristics or secondary diagenetic changes. These characteristics are determined by various data and tools. Among these tools, CT scan images are very useful because they can be prepared with low cost and in reasonable time. Also, despite many other tests, CT is a non-destructive method. In this chapter, many sedimentological and diagenetic features are shown in CT images. These include, but are not limited to, various carbonate rock textures from mudstone to grainstone, different types of carbonate lithologies, types of pores, allochems (e.g., bioclasts, intraclasts, microbial fragments), bioturbations, various types of clasts (including pebbles, rip-up clasts and brecciation) and some special features such as clotted fabrics, change in facies, impregnation, replacement and load structures. The original photo is seen along with a traced duplicate, the Fullbore Formation MicroImager (FMI), whole core and close-up photos as well as thin section image. Therefore, the reader can compare the effect of the features in all available proxies. A brief description of images is presented. Definition of the feature is also given.
