Seongsan Ilchulbong

Jeju Seongsan Iceland

, Also called Seongsan Sunrise Peak Ilchulbong, is a 182 m high, volcanically formed land survey in the eastern part of the South Korean island of Jeju.

It has a crater depression whose bottom is at 90 meters above sea level and has a diameter of about 600 m. Together with Mount Hallasan and the Geomunoreum lava caves, involves the collection since 2007 as a World Heritage Site Jeju Volcanic Island and Lava Tubes UNESCO.

Formation

The information on the origination date of Seongsan Ilchulbong are different and vary from a period of 5000 years ago to 120,000 years ago. But it is certain that it grew out of a hydro- magmatic eruption, the magma has come in with the sea or ground water in contact. The resulting water vapor released has smashed the surrounding rock and blasted a crater into the rock. Around the Crater Wall has then deposited material ejected host rock.

Classification

Due to the hydro- magmatic explosion of Seongsan Ilchulbong can be called tuff. During the eruption of the volcanic material was wet and sticky by the coming in contact with him water. This resulted in numerous deposits that are characteristic of the wet nature of a tuff cone.

Ecosystem

Seongsan Ilchulbong can be divided into four areas: the crater interior, the north- western slope lying outside the crater, the stone cliffs on the outer crater wall and the sand dunes on the coast. Each area has a different vegetation.

A Flora of China reeds and Artemisia princeps, also called Japanese mugwort and Japanese arrow bamboo covers the inner part of the crater. The slope north-west lying covered with Japanese black pine and evergreen shrubs such as Orixa japonica or the Ivy Hedera kind rhombea. The stone cliffs are covered with ivy and star jasmine and the sand dunes are covered with cogon and a flora of Vitex and beach winds, a widespread plant genus in the sea.