About 75% of the rock outcroppings on continents are sedimentary rocks. Detrital sedimentary rocks are those for which the material has been transported as solid particles. The particles themselves may have derived from either physical weathering or chemical weathering. Sedimentation means settling from a fluid, either water or air.
An anesthesiologist is a medical doctor who keeps a patient comfortable, safe and pain-free during surgery by administering local or general anesthetic.
A cardiac anesthesiologist is a doctor (MD) who has completed four years of college, four years of medical school, at least four years of graduate-level medical training (a year of internship and three years in an anesthesiology residency program), and at least one year of a cardiac anesthesia fellowship program.