G3

New Paper in G-cubed

Pauline Cornard´s sediment provenance analyses reveal new insights into tectono-stratigraphic evolution of the Nankai Accrestionary Primes, now published as new paper in G-cubed

The study documents similar petrographic signature between accreted materials of the inner Nankai accretionary prism and submarine fans of the Shikoku Basin.  The results are in agreement with the hypothesis of very oblique subduction or strike-slip motion between the northern Shikoku Basin and mainland Honshu from ∼12.2 to 9.2 Ma. Furthermore, results document incorporation of the Kyushu Fan into the inner accretionary prism implying changes in décollement location between ∼6 and ∼2 Ma, likely related to changes in physical properties of hemipelagic intervals

 

Read the paper here

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