Magnetostratigraphic Study for Lower Gyeongsang Super Group

庆尚南道下超群磁性地层研究

• 批准号: 07044306
• 负责人: NISHIMURA Susumu
• 金额: --
• 依托单位: KYOTO UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for International Scientific Research.
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 无数据
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07044306/
• 关键词: Gyeongsang; Magnetostratiqraphy; Joint Research; Paleomagnetism; Polar Wander Path; Korean Peninsula; cretaceous; Tertiary

The cooperative research project-between Kyoto and Yonsei Universities on "Magnetostratigraphic Study for the Lower Gyeongsang Super Group in Goryeong-Uiryeong Area" was carried out in 1996 as the Oversea Scientific Research Project (Join Research) of Japan No. 07044306 financially supported by the Ministry of Education/Science, Sports and Culture of Japan and KOSEF in Korea.The Gyeongsang Basin is a part of non-marine sedimentary basin in East Asia which formed during the Cretaceous and Neogene. The basin, being exposed between the Gyeongsang basin and Hida-Sangun-Yamaguchi area in Japan, has been noticed by the both the Japanese and Korean geologists. Although a number of investigations, there are debeates on such as the times of deposition. This magnetostratigraphic study has been carried out in Gyeongsang Supergroup.Field examination and collection of paleomagnetic samples were made in Southern part of Korea from February 29 to March 19, 1996, in cooperative work with the collaborators of Japanese and Korean scientists, as follows :Jinju Area (Cretaceous) : 52 sites (about 260 rock samples)Goryeong Area (Cretaceous) : 56 sites (about 280 rock samples)Pohang Area (Tertiary) : 40 sites (about 400 rock samples)The laboratory and summarizing works will be done in Kyoto and Yonsei Universities.Detailed and careful rock magnetic and paleomagnetic studies may give the ages and the pole position of the sampling sites. And then, it is clear that the times of deposition, stratigraphic correlations among different sub-basins of Gyeongsang basin and polar wander path of Cretaceous and Tertiary periods for the Southern part of Korean Peninsula, in close association with that for Southwest Japan.The study may enable us to determine the time of deposition and correlate among formations included in each basins. The results will provide the foundermental informations on the time of formations, paleomagnetic polar wander path in East Asia.

京都大学和延世大学之间的合作研究项目“高灵-宜宁地区庆尚下游超群的磁性地层研究”是1996年在日本教育/科学、体育和文化部和韩国KOSEF的资助下进行的日本海外科学研究项目（联合研究）第07044306号。 是东亚非海相沉积盆地的一部分，形成于白垩纪和新近纪。该盆地暴露在日本庆尚盆地和飞驒山口山口地区之间，受到了日本和韩国地质学家的关注。尽管进行了多次调查，但在作证时间等问题上仍存在争议。这项磁地层学研究是在庆尚超群进行的。 1996年2月29日至3月19日，与日本和韩国科学家的合作者在韩国南部进行了现场检查和古地磁样品采集，具体如下： 晋州地区（白垩纪）：52个地点（约260个岩石样本） 高灵地区（白垩纪）： 56个地点（约280个岩石样本）浦项地区（第三级）：40个地点（约400个岩石样本）实验室和总结工作将在京都大学和延世大学进行。详细而仔细的岩石磁力和古地磁研究可以给出采样点的年龄和极位置。由此可见，庆尚盆地不同次盆地的沉积时代、地层对比以及朝鲜半岛南部白垩纪和第三纪的极地漂移路径与日本西南部的沉积时代密切相关。这项研究可以使我们确定沉积时代以及各盆地所含地层之间的相互关系。研究结果将为东亚古地磁极漂移路径的形成时间提供基础信息。