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 compound of articular processes of vertebrae called dugootrostchatym compound (articulatio zygapophysialis). The joint is flat, formed articular surfaces of the upper articular processes of one vertebra and articular surfaces of the lower articular processes of another-the overlying-vertebra.