Cyclostratigraphy of Lower Triassic terrestrial successions in the Junggar Basin, northwestern China

The astrochronology for the Early Triassic has been constructed from well-preserved marine successions; however, astronomical analyses of terrestrial strata have continued to be rare and problematic. Physical logs (natural gamma ray logging data) from two wells in the Junggar Basin, northwestern China cover the entire Lower Triassic terrestrial Baikouquan Formation and have been shown to be a powerful tool in cycle analysis. Therefore, these...