In the centre of a pumice-covered plateau from loon to 2000 ft. In 1886 there was a serious volcanic eruption in the outlying island of Nivafoou, and at the same time Falcon Reef, normally awash at high water, discharged sufficient scoriae and pumice to form a new island 50 ft.
The superior facet, also called the superior articular process, is a pair of facet joints between pairs of vertebrae. A facet joint is what holds two vertebrae together and each vertebra contains two pairs, an upper-facing superior facet pair and a lower-facing inferior facet pair.
Facet Arthritis. (also called arthrosis, or degeneration) The facet joints are in the back of the spine, about a half inch from the bump that you can feel in the middle of your back (the spinous process). These joints are indicated in the picture on the right by the asterisk on the photograph of the spine model (*).