Abstract Submarine geomorphic features on the active margin along the Mexican Pacific coast are the result of subduction process. We analyze bathymetric data and present an overview of the continental slope geomorphology in the Guerrero seismic gap. For the first time we identify and describe submarine landforms in this area, including small-scale forearc basins, trench basin segmentation, narrow accretionary wedge and seamounts. We propose that the presence and formation of forearc basins are related to seamount subduction as well as the origin of higher relief above subducted seamounts. Here, forearc basins and trench sediments are sourced from submarine canyons. Notably, the thickness of sediments along the trench changes due to the presence of seamounts. Some parts of the trench seem to contain little sedimentary fill, which may increase friction along these segments of the subduction zone.

中文翻译：

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墨西哥格雷罗活动边缘的海底形态：可能的地震影响

摘要 墨西哥太平洋沿岸活动边缘的海底地貌特征是俯冲作用的结果。我们分析了测深数据并概述了格雷罗地震间隙中的大陆坡地貌。我们首次识别和描述了该地区的海底地貌，包括小尺度前弧盆地、海沟盆地分割、狭窄的增生楔和海山。我们认为弧前盆地的存在和形成与海山俯冲以及俯冲海山上方高地势的起源有关。在这里，弧前盆地和海沟沉积物来自海底峡谷。值得注意的是，由于海山的存在，沿海沟的沉积物厚度发生了变化。海沟的某些部分似乎几乎没有沉积物填充物，