Abstract
The southern end of the Shackleton Fracture Zone is subducted below the South Shetland forearc, while the basal detachment of the forearc continues eastward of the Shackleton ridge as a thrust fault. The western boundary between the Antarctic/Scotia plates is located at the eastern margin of the Shackleton ridge, where an elongated depositional basin and a morphological trough delineates the contact. The boundary of the Antarctic/Scotia plates and the South Shetland forearc form a triple junction at the intersection of the Shackleton Fracture Zone with the trench, between these two plates, and an independent South Shetland block.
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Aldaya, F., Maldonado, A. Tectonics of the triple junction at the southern end of the Shackleton Fracture Zone (Antarctic Peninsula). Geo-Marine Letters 16, 279–286 (1996). https://doi.org/10.1007/BF01245558
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DOI: https://doi.org/10.1007/BF01245558