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.
The articular processes or zygapophyses (Greek Î¶ÏÎ³Î¿Î½ =  yoke  (because it links two vertebrae) + Î±ÏÎ¿ = away + ÏÏÏÎ¹Ï =  process ) of a vertebra, are projections of the vertebra that serve the purpose of fitting with an adjacent vertebra. The actual region of contact is called the articular facet. Articular processes spring from the junctions of the pedicles and laminae, laminÃ¦ and there are two right and, left and two superior and. inferior