북동태평양 한국 심해저 연구지역 망간단괴의 지역적 분포와 퇴적환경

• Published in: Ocean and polar research Vol. 25; no. 3; pp. 257 - 267
• Main Authors: 지상범, 강정극, 오재경, 손승규, 박정기, Chi, Sang-Bum, Kang, Jung-Keuk, Oh, Jae-Kyung, Son, Seung-Kyu, Park, Cheong-Kee
• Format: Journal Article
• Language: Korean
• Published: 한국해양과학기술원 01.09.2003
• Subjects: 해양학
• ISSN: 1598-141X; 2234-7313

Deep-sea bottom photographs acquired in the Clarion-Clipperton fracture zone of the northeast equatorial Pacific were analyzed to reveal the controlling processes for the spatial variation of manganese nodule. The results show that regional-scale occurrence variations of manganese nodule are mainly controlled by primary productivity of surface water, sedimentation rate, and water depth (or carbonate compensation depth). As a result, the diagenetic accretion on nodules increases toward southwest while hydrogenetic accretion increases toward northeast. Considering the northwestward movement of Pacific Plate, this regional-scale variation of manganese nodule occurrence seems to be affected by oceanic environment during the active growth period (Oligocene-Miocene) of Pacific Plate.