“…Seafloor, hosting global lithosphere‐hydrosphere‐atmosphere interactions, forms at mid‐ocean ridges (MORs) and covers roughly 70% of the Earth's surface [ Showman and Dowling , ]. The Pacific seafloor occupies approximately 50% of the world's ocean basins [e.g., Longhurst , ] and is marked by numerous intraplate volcanic features such as large oceanic plateaus [e.g., Coffin and Eldholm , ], seamounts [e.g., Menard , ; Heezen et al ., ], and deep‐sea sills/flows [e.g., Larson and Schlanger , ; Schlanger and Moherly , ]. Volcanic activity and crustal emplacement mechanisms, including seamounts at on and off‐axis regions of MORs have been extensively studied [e.g., Hess , ; Vine , ; Haymon et al ., , ; Carbotte and Macdonald , ; Hooft et al ., ; Fornari et al ., ; Curewitz and Karson , ; Chadwick and Embley , ]; however, the origin and implications of plate scale intraplate volcanism leaves much to be studied because of its great extent [cf.…”