Fig. 6: A 200 Ma record of magmatism and crustal cooling for the north central to northern Andes inferred from detrital zircon U-Pb and U-Th/He from the Amazon Fan, including continental records of the timing of coarse-grained clastic sedimentation to Andean retroarc foreland basins (Horton38; see main text for discussion), and initiation of widespread Andean plateau uplift (Sundell et al.17). | Nature Communications

Fig. 6: A 200 Ma record of magmatism and crustal cooling for the north central to northern Andes inferred from detrital zircon U-Pb and U-Th/He from the Amazon Fan, including continental records of the timing of coarse-grained clastic sedimentation to Andean retroarc foreland basins (Horton38; see main text for discussion), and initiation of widespread Andean plateau uplift (Sundell et al.17).

From: Cycles of Andean mountain building archived in the Amazon Fan

Fig. 6

Top green curve shows whole rock neodymium values used to interpret central Andean arc magmatic magmatism, including lulls, since ~175 Ma (modified from DeCelles et al.3). Unfilled red curve is the KDE of U-Pb detrital zircon (DZ) ages from the Amazon Fan (Mason et al.7) with interpreted phases of high magmatic flux since 200 Ma. Blue filled curve and histogram are DZ U-Th/He cooling ages (AHe) from the Amazon Fan, with interpreted phases of rapid or widespread crustal cooling.

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