研究沿海地区全新世沉积特征与形成年代,进行地层划分与对比,恢复沉积环境及演变历史,对探讨海岸线变迁、海平面变化与地壳运动等理论问题,有重要意义。以往,海南岛沿岸全新世沉积与地层的研究比较薄弱,主要涉及珊瑚礁、沿岸砂堤等。近年来,作者等在海南岛进行第四纪地质调查中,研究了沿岸地区的海滩岩、珊 Studying the depositional characteristics and forming age of the Holocene in the coastal area, stratigraphic division and contrast, restoration of sedimentary environment and evolutionary history are of great significance to theoretical issues such as coastline change, sea level change and crustal movement. In the past, the research on the sediments and strata of the Holocene along the coast of Hainan Island was relatively weak, mainly involving coral reefs and sand banks along the coast. In recent years, the authors conducted a Quaternary geological survey in Hainan Island to study the beach rocks and rocks in the coastal areas