A shear zone is a zone of strong deformation (with a high strain rate) surrounded by rocks with a lower state of finite strain. It is characterised by a length to width ratio of more than 5:1.
The degree for becoming a chiropractor is called a Doctor of Chiropractic, and is abbreviated D.C. In addition to physiciansâ¦ and academics with a doctoral degree, it is customary to address as Doctor such health practitioners as veterinarians, optometrists, and chiropractors.
They are not medical doctors, however for insurance purposes, some states consider chiropractors health care providers, some do not. A PT (Physical Therapist) is also not a medical doctor and cannot prescribe medication.