Raw data from a wide-angle seismic survey in the Grenada Basin

the main objectives of the garanti cruise (geodynamical conditions for aves ridge and the lesser antilles arc splitting) concern the geodynamic conditions that prevail during the splitting between the north-south-trending aves ridge, an extinct volcanic arc back of the lesser antilles, and the present volcanic arc sitting on the atlantic edge of the caribbean plate. modalities of the stretching are poorly constrained and thus controversial. during the 2017 garanti cruise, three combined wide-angle and reflection seismic profiles, together with gravity and magnetic data, were acquired in the lesser antilles backarc. the resulting velocity models show the sedimentary and crustal structures along aves ridge, the grenada basin and the modern arc.

本数据集的主要目标在于探究加兰特巡航（aves岭与 Lesser Antilles 弧的分裂地质动力学条件）期间，南北走向的aves岭、位于 Lesser Antilles 后方的已灭绝火山弧以及目前位于加勒比板块大西洋边缘的活火山弧之间的地质动力学条件。拉伸模式的约束条件有限，因此存在争议。在2017年的加兰特巡航中，通过获取三个结合了宽角和反射地震剖面，以及重力与磁力数据，对 Lesser Antilles 后弧区域进行了研究。所得速度模型揭示了aves岭、格林纳达盆地以及现代弧的沉积层和地壳结构。