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. 2015 Mar 10;112(12):3624–3629. doi: 10.1073/pnas.1501137112

Fig. 4.

Fig. 4.

Untuned (depth) wavelet spectra of the LITH data of high-latitude Haojiagou and Badaowan formations of Rhaetian to Sinemurian age (Late Triassic–Early Jurassic, Junggar Basin) with strong power in the obliquity band (∼40 ky) and low power in the climatic precession (∼20 ky) band compared with the low-latitude Lockatong Formation of Norian (depth rank, Late Triassic, Newark Basin) (from ref. 28). Spectra are lined up along the frequency modulations (in thickness) of the 405-ky cycle. Similar continuous data for the Rhaetian–Sinemurian of eastern North America are not available. Lower and upper green arrows for the Junggar Basin indicate the end-Triassic extinction (201.6 Ma) and the Hettangian–Sinemurian boundary (199.7 Ma), respectively (Figs. S3 and S4).