@article{oai:niigata-u.repo.nii.ac.jp:00028211,
 author = {高浜, 信行},
 journal = {新潟大学積雪地域災害研究センター研究年報, 新潟大学積雪地域災害研究センター研究年報},
 month = {Nov},
 note = {Valley of the Aburuma river, located at the eastern margin of the Niigata Cenozoic sedimentary basin, was tectonically active area from the Pliocene to the late Pleistocene. The Aburuma river represents the border between the Uonuma hills (the Niigata Cenozoic sedimentary basin) on the west and the Echigo mountains on the east being composed mainly of pre Tertiary basement rocks. The border is called the “Shibata-Koide tectonic Iine”. The mass movement deposits are widely distributed along the west side of the Aburuma river. In this paper, the author intends to describe the stratigraphy of the mass movement deposits and to discuss the development of the mass movement in relation to the late Quaternary geohistry of this area. Results of the research are summarized as follows: 1. As the mass movement deposits of the pre middle Pleistocene has been overburdend in the Strata, they have no influence to later mass movements. On the contrary, the mass movement deposits ranging from the middle Pleistocene to the Recent has been exposed on the surface of the hills and mountain slopes, and their main part is closely connected to modern mass movement hazards. 2. The mass movement deposits from the middle Pleistocene should be divided into two groups by an event. It was remarkable change in the geomorphic development that the 「Aburuma gawa graben」had existed during the age of post terrace I stage-pre terrace II stage. The「Aburuma gawa graben」with estimated throw of 150-200 meters, would be formed as a relative depression zone along the location of the present Aburuma river accompanied with upheaval of the Uonuma hills, and the Aburuma river is controlled by this「graben」. 3. The oldest mass movement deposits exposed now are called mass movement deposits A, which is distributed at the top and/or upper part of the Uonuma hills, and has little connection with later mass movements. The mass movement deposits A would be formed with regional upheaval of this area at later stage in the middle Pleistocene before appearance of the「Aburuma gawa graben」. 4. The primary mass movement that have close relation with modern mass movement, had occurred accompanied with formation of the「Aburuma gawa graben」, which caused steep, unstable slopes and disturbed bed rocks on the west side of the Aburuma river. The primary mass movement is represented by the mass movement deposits B, which is covered by “Red loam bed”, and to be correlative to the terrace gravel II. 5. It was the secondary mass movement that the mass movement deposits B was moved by the descending erosion of the base level of the Aburuma river. This time was the growth and expansion stage of the mass movement. The secondary mass movement is recorded in the mass movement deposits C, which is covered by “Brown loam bed, and is correlative to the terrace gravel III inferred to had been formed at the Wurm glacial stage. 6. Recent mass movements have been occurring along tributaries in the mass movement area. They are small scale and are those of relatively stable stage in the development of the mass movement. Recent mass movement is recorded in the mass movement deposits D without loam bed, and is correlative to the terrace gravel IV, which may be of the Holocene. 7. From the facts above stated, it can be recognized that the mass movement along the west side of the Aburuma river has been developed in close relation to the late Quaternary geohistory.},
 pages = {31--45},
 title = {新潟堆積盆地東縁部・破間川西岸地域のマスムーブメント発達史と構造運動},
 volume = {3},
 year = {1981}
}