An example of mechanically formed sedimentary rock is? by Sunday | Dec 28 | Geography JAMB | 0 comments A. chalk B. dolomite C. coal D. conglomerate Correct Answer: Option D – conglomerate Users Also Read These:Marble is a metamorphic rock formed from?Which of the following pairs of rock examples are…A basin where rock layers have been folded and in…Shale is a fire-textured sedimentary rock formed…Gneiss is a metamorphic rock formed from?