East Pacific Rise and Westward Drift of North America

Ridge subduction and porphyry copper-gold mineralization: An overview

“…An ocean ridge can be subducted into the mantle when it intersects a trench [18], as was first discovered 4 decades ago during studies on orogenic processes in the western America [19]. It is now known that ridge subduction is a common phenomenon along the circum-Pacific subduction zones [20][21][22][23][24], and may have occurred several times since the late Mesozoic [25][26][27][28][29].…”

Patagonian broken foreland and related synorogenic rifting: The origin of the Chubut Group Basin

“…The deformational effects produced by collisions of mid ocean ridges have been recognized for a long time (Palmer, 1968). In most cases, subduction of mid-ocean ridges is associated with overriding plate extension enhanced by the development of slab windows (Thorkelson, 1996).…”

Petrology, geochemistry, and tectonic significance of Mesozoic shoshonitic volcanic rocks, Luzong volcanic basin, eastern China

“…Oceanic ridge subduction is the combination setting of subduction zone and ocean floor expansion (Thorkelson 1996), and was first identified during orogenic research in the western USA (Palmer 1968). Previous studies show that about 125 million years ago, the Pacific plate subducted to the SW direction, while the Izanagi plate subducted to the N and NW direction even faster (Maruyama et al 1997;Sun et al 2007).…”