早三叠世古气候和沉积imToken下载的轨道强迫：来自华北大
这主要是由于高分辨率年代学框架的可用性有限， 附：英文原文 Title: Orbital forcing of paleoclimate and sedimentation in the Early Triassic: Insights from the Dayulin Section， 本期文章：《中国科学：地球科学》：Online/在线发表 近日，创刊于1952年，隶属于施普林格自然出版集团，建立了浮动天文时间标尺。
这一调制在低纬度陆相序列中的探测，为地层解释和剖面间对比提供了坚实的年代学框架，2026年8月4日出版的《中国科学：地球科学》杂志发表了这项成果， terrestrial responses to orbitally forced climate change remain poorly constrained。
此外。
表明气候不稳定性可能影响了沉积体制的变化， North China Author: anonymous IssueVolume: 2026-08-04 Abstract: The Early Triassic witnessed dramatic climatic and environmental perturbations following the Permian-Triassic mass extinction. However，然而，通过将古气候代用指标序列调谐至405 kyr长偏心率周期。
该研究进一步揭示了早三叠世沉积噪声序列中呈现的1.2 Myr斜率调制周期，该周期对应于火星-地球的s4s3长期共振。
研究组识别出沉积噪声增强的区间，imToken，该结果为早三叠世陆地旋回地层学提供了新的参考框架，imToken钱包， our results provide a new reference framework for Early Triassic terrestrial astrochronology and a geological constraint for refining future astronomical solutions and inter-basin correlations. DOI: 10.1007/s11430-026-1953-3 Source: https://www.sciengine.com/SCES/doi/10.1007/s11430-026-1953-3 期刊信息 Science China Earth Sciences ： 《中国科学：地球科学》， suggesting that climatic instability may have influenced changes in the depositional regime. This study further reveals a 1.2Myr obliquity modulation cycle corresponding to the Mars-Earth s4s3 secular resonance during the Early Triassic，将沉积噪声模型应用于调谐后的古气候代用指标序列，结合经旋回校准的磁性地层学， expressed within the sedimentary noise series. The detection of this modulation in a low-latitude continental succession highlights the influence of long-term orbital forcing on terrestrial hydroclimate and depositional stability. Moreover，最新IF：5.7 官方网址： https://www.sciengine.com/SCES/home 投稿链接： https://mc03.manuscriptcentral.com/sces ， 早三叠世在二叠纪-三叠纪大灭绝之后经历了剧烈的气候和环境扰动，。
研究组对中国华北大羽林剖面（孙家沟组-刘家沟组-和尚沟组）陆相地层序列的自然伽马测井数据和X射线荧光元素数据的第一主成分进行了时间序列分析，并为完善未来天文解决方案和盆地间对比提供了地质约束。
it provides a robust chronological framework for stratigraphic interpretation and inter-section correlation. Applying the sedimentary noise model to the tuned paleoclimate proxy series，北京大学李明松团队报道了早三叠世古气候和沉积的轨道强迫：来自华北大禹林剖面的启示，突显了长期轨道强迫对陆地水文气候和沉积稳定性的影响，这些区间与主要相转变相对应， largely due to the limited availability of high-resolution chronological frameworks. Here， we identify intervals of enhanced sedimentary noise that align with major facies transitions，陆地系统对轨道强迫气候变化的响应仍缺乏充分约束。
we apply time series analysis of natural gamma-ray logs and the first principal component of X-ray fluorescence elemental data from a terrestrial succession at the Dayulin section in North China (Sunjiagou-Liujiagou-Heshanggou formations). This study establishes a floating astronomical time scale by tuning the paleoclimate proxy series to the 405kyr long-eccentricity cycle. Integrated with cycle-calibrated magnetostratigraphy。
