The processes of underthrusting and underplating in the geologic record: structural diversity between the Franciscan Complex (California), the Kodiak Complex (Alaska) and the Internal Ligurian Units (Italy)

• Published in: Geological journal (Chichester, England) Vol. 44; no. 2; pp. 126 - 152
• Main Authors: Meneghini, F., Marroni, M., Moore, J.C., Pandolfi, L., Rowe, C.D.
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 01.03.2009
• Subjects: Franciscan Complex; hydrofracture; Kodiak Complex; Ligurian Units; mélange; sediment thickness; subduction; underplating

Existing studies on active subduction margins have documented the wide diversity in structural style between accretionary prisms, both in space and time. Together with physical boundary conditions of the margins, the thickness of sedimentary successions carried by the lower plate seems to play a key...