Study on the Holocene sea-level change and coastal evolution in the Cook Islands, south Pacific

我们在调查沿海平原和珊瑚礁的地貌和沉积物的基础上，研究了库克群岛拉罗通加、艾图塔基和曼盖亚群岛构成沿海平原的各种地貌的出现、冰后海岸地貌与末次间冰期、全新世海岸发展的关系和海平面变化。在本研究重点关注的拉罗通加，海平面在5,000-6,000年前达到现在的海平面后，沿海平原普遍出现在约4,000-5,000年前。

We examined the occurrences of various landforms constituting coastal plains, the relation of postglacial coastal landforms to those of the last interglacial, Holocene coastal developments and sea-level changes in Rarotonga, Aitutaki and Mangaia islands, Cook Islands, on the basis of the investigation of landforms and sediments of coastal plains and coral reefs. In Rarotonga focused in this study, after sea level attained present sea level c. 5,000-6,000 years ago, coastal plains have generally emerged since c. 4,000-5,000 years ago.