Syn‐Subduction Strike‐Slip Faults Shape an Accretionary Orogen and its Provenance Signatures: Insights From Sikhote‐Alin in NE Asia During the Late Jurassic to Early Cretaceous

A significant tectonic process was identified in the Central Sikhote-Alin region, where syn-subduction strike-slip faults played a crucial role in shaping sedimentary provenance signatures during the Late Jurassic to Early Cretaceous. The study reveals that sediments west of the Central Sikhote-Alin Fault primarily originated from the adjacent Central Asian Orogenic Belt, while those to the east were sourced from the distant Korean Peninsula. This juxtaposition was driven by lateral displacements along the fault rather than local source region changes, highlighting the importance of depocenter movement in interpreting provenance records. The research utilized detrital zircon U-Pb geochronology and compiled geochronological data to demonstrate how strike-slip faults can transport sedimentary basins over long distances, thereby altering regional paleogeographic reconstructions along oblique convergent margins.

Liu, K., Xiao, W., Wilde, S. A., Zhang, J., Alexandrov, I., Kasatkin, S. A., & Ge, M. (2021). Syn‐Subduction Strike‐Slip Faults Shape an Accretionary Orogen and its Provenance Signatures: Insights From Sikhote‐Alin in NE Asia During the Late Jurassic to Early Cretaceous. Tectonics, 40(7). Portico. https://doi.org/10.1029/2020tc006541