Fractures Of Sea Floor

These measurements showed that the surface of the ocean is uneven.

Fractures of sea floor.

Blunt force trauma tends to cause fractures along three lines of weakness in the mid face. The following features are shown at example depths to scale though each feature has a considerable range at which it may occur. Seafloor spreading occurs along mid ocean ridges large mountain ranges rising from the ocean floor. Fractures commonly happen because of car accidents falls or sports injuries other causes are low bone density and osteoporosis which cause weakening of the bones overuse can cause stress fractures which are very small cracks in the bone.

Running through all the world s oceans is a continuous mountain range called the mid ocean ridge submarine ridge in figure 14 23. The broken bone is not completely separated. Fractures have a variety of names. Below is a listing of the common types that may occur.

Greenstick incomplete fracture. One characteristic of all types of le fort fractures is the fracture of the pterygoid processes part of the sphenoid bone. This is a rim fracture that extends into the lower socket. Seafloor spreading helps to explain continental drift in the theory of plate tectonics.

Mid face le fort fractures. The smooth flat regions that make up 40 of the ocean floor are the abyssal plain. A closed fracture is also called a simple fracture. Data collected by satellites and remote sensing instruments were used to created a model at least twice as.

Fractures can be classified as closed or open as well as incomplete or complete. The sea floor then drops off steeply along the continental slope the true edge of the continent. The east pacific rise is a mid ocean ridge that runs through the eastern pacific ocean and separates the pacific plate from the north american plate the cocos plate the nazca plate and the antarctic plate. Common in a twisting injury.

This graphic shows several ocean floor features on a scale from 0 35 000 feet below sea level. Transverse the break is in a straight line across the bone. When oceanic plates diverge tensional stress causes fractures to occur in the lithosphere. A fracture is a break usually in a bone.

Depressions in the surface suggest the presence of massive seafloor features such as mid ocean ridges and seamounts that increase gravitational pull. Direct orbital floor fracture. Spiral the break spirals around the bone. If the broken bone punctures the skin it is called an open or compound fracture.

The mid atlantic ridge for instance separates the north american plate from the eurasian plate and the south american plate from the african plate. In locations where two plates move apart at mid ocean ridges new seafloor is continually formed during seafloor spreading.