울산 세죽유적 일대에서 확인되는 해수면 상승흔적과 그 성격에 대하여

Abstract

This study has examined that the signs of rising sea levels and those aspects after the last ice age represented by the Late Paleolithic era, while passing through a rapid process of global warming to the current level in the beginning through the relics of Ulsan Sejuk and nearby Hwang Seong-Dong. Ulsan Sejuk relics could be called much attention because it consisted of the relics in the early Neolithic period mostly, as well as located below sea level, unlike the height of the point with 18tannin removal facilities which were directly related to sea level and checked the shape of a belt along the coast. However, the order of the story in Sejuk relics was leaving a lot of review about the order of the story and those aspects of it because redeposited pattern was confirmed and up as disturbance. Recently a research of the remains Hwang Seong-Dong A and B branches, located near Sejuk relics, was able to identify the aspect of that time more specifically through the layers were compared to each other in sequence. At first, as a result of analyzing pottery from three places including Sejuk remains could be distinguished in chronological order between the ages of six stages,seasonally all the steps corresponded to the initial stages or the early stages. The second half of Sejuk remains, two and three steps corresponded to the end groups of Earthenware Bowl with Raised Pattern and have checked some common features with the early stage of Hwang Seong-Dong A and B branches, steps 4 and 5 appeared only at the branches focusing on Earthenware Bowl with Pinched and Young Seon-Dong type Earthenware Bowl with Press Taking Pattern, the last six steps as the late stages of Earthenware Bowl with Press Taking Pattern was identified only Hwang Seong-Dong branch B. This attempt was based on the analysis of the layers, Neolithic cultural layers were compared to the height and the order shown in the drawing for each report on the basis of the current sea level. As a result, the timing of sea level rising affecting Sejuk remains has largely confirmed, the first was by 5,700 BP that sea levels was to reach the point about -50cm at that time, the second was the step Ⅶ layer of Hwang Seong-Dong point B that it was checked to reach the point about -20cm at that time, that period was estimated between 5,100 BP. Therefore, the tannin removal facilities of Sejuk remains had formed this 2nd sea level rising period and could be viewed as representing the sea level of that time. The cultural changes of this period were identified that Earthenware Bowl with Raised Pattern of the early stages declined before and after the 1st sea level rising period, converted to the aspects of new Earthenware Bowl with Pinched and Young Seon-Dong type Earthenware Bowl with Press Taking Pattern. In this 2nd sea level rising period the tradition of Earthenware Bowl with Raised Pattern had completely destroyed and then Young Seon-Dong type Earthenware Bowl with Press Taking Pattern had made up the center of that period. Through this, not only the nature of the layers of remains and artifacts excavated at the shell mound of the coastal areas could be more clearly, but the chronological order of Neolithic culture, appeared on the West Coast shell mound site with extreme tidal difference, could be explained the reason not exceeding BP 5,700.