Abstract. Remnants of the Caribbean Large Igneous Plateau (CLIP) are found as thicker than normal oceanic crust in the Caribbean Sea, that formed during rapid pulses of magmatic activity at ~ 91–88 Ma and ~ 76 Ma. Strong geochemical evidence supports the hypothesis that the CLIP formed due to melting of the plume head of the Galápagos hotspot, which interacted with the Farallon (Proto-Caribbean) plate in the east Pacific. Considering the plate tectonics theory, it is expected that the lithospheric portion of the plume-related material migrated within the Proto-Caribbean plate, in a north–north-eastward direction, developing the present-day Caribbean plate. In this research, we used 3D lithospheric-scale, data-integrative models of the current Caribbean plate setting to reveal, for the first time, the presence of positive density anomalies in the uppermost lithospheric mantle. These models are based on the integration of up-to-date geophysical datasets, from the Earth’s surface down to 200 km depth, which are validated using high-resolution free-air gravity measurements. Based on the gravity residuals (modelled minus observed gravity), we derive density heterogeneities both in the crystalline crust and the uppermost oceanic mantle (

中文翻译：

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3D数据集成模型揭示了加勒比大火成高原的保留羽状流

摘要。加勒比大火成高原的残留物（CLIP）比加勒比海的正常洋壳厚，这是在大约91-88 Ma和〜76 Ma的岩浆活动快速脉动期间形成的。有力的地球化学证据支持这一假设，即CLIP是由于加拉帕戈斯热点的羽状喷头融化而形成的，该热点与东太平洋的Farallon（原始加勒比海）板块相互作用。考虑到板块构造学说，预计羽状相关物质的岩石圈部分在北加勒比-东北方向上在原加勒比板块内迁移，形成了今天的加勒比板块。在这项研究中，我们使用了当前加勒比海板块环境的3D岩石圈尺度数据集成模型，首次揭示了 在最上层岩石圈地幔中存在正密度异常。这些模型基于从地球表面到200 km深度的最新地球物理数据集的集成，这些数据已使用高分辨率的自由空气重力测量进行了验证。根据重力残差（模型减去观测到的重力），我们得出了结晶壳和最上层海洋地幔的密度异质性（