Geomorphology of the Cook Islands, tropical South Pacific Ocean

We use the 2021 GEBCO grid to interpret the seabed geomorphology within the Cook Islands and adjacent areas. A complex geological history dating back to 125 Ma is manifested in a range of geoforms. These include abyssal plains, plateaux, volcanic and tectonic rises, seamount-knolls and chains and troughs, as well as fault zones. A Main Map at 1:3,000,000 scale is presented with example cross-sections, with 1:10,000,000 scale inset maps of bathymetry, mineral occurrences (the Cook Islands has a major polymetallic nodule resource), feature names and regional setting. We expect these map products to be of value to stakeholders interested in exploration and mineral resource assessment, marine habitat management, and the general make-up of this small island large ocean country.

本数据集采用2021版国际海床地形网格（GEBCO Grid），对库克群岛及其邻近海域的海底地貌开展解译工作。该区域的复杂地质历史可追溯至125 Ma，由此塑造了多样的海底地貌类型，包括深海平原、海底高原、火山与构造隆起、海山-海丘及海山链、海槽与断裂带。本成果包含一幅比例尺为1:300万的主图，附带示例剖面图；另附有4幅比例尺为1:1000万的附图，分别展示水深数据、矿产产出情况（库克群岛蕴藏大型多金属结核资源）、地貌特征名称及区域背景。我们期望上述地图产品可为关注海洋勘探与矿产资源评估、海洋生境管理，以及这座小岛屿大洋国家整体概况的利益相关方提供参考价值。