The effects of ssc ( small - scale sub - lithospheric convection ) on seafloor topography are investigated by formulating a 2d thermal convection model that is parallel to plate motion 摘要根据建立的垂直于大洋中脊的二维热对流有限元数值模型,采用常粘性以及与温度相关的粘性两种粘性结构对小尺度地幔对流对海底地形的影响进行了重新研究。