发布时间:2026-08-11 08:38源自:网络整理作者:imToken官网阅读()
通过将古气候代用指标序列调谐至405 kyr长偏心率周期。
研究组识别出沉积噪声增强的区间。

陆地系统对轨道强迫气候变化的响应仍缺乏充分约束,隶属于施普林格自然出版集团,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, 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,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,imToken,此外, we identify intervals of enhanced sedimentary noise that align with major facies transitions,这些区间与主要相转变相对应, 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, terrestrial responses to orbitally forced climate change remain poorly constrained,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, 附:英文原文 Title: Orbital forcing of paleoclimate and sedimentation in the Early Triassic: Insights from the Dayulin Section,创刊于1952年。

为地层解释和剖面间对比提供了坚实的年代学框架,然而,结合经旋回校准的磁性地层学, 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》,该结果为早三叠世陆地旋回地层学提供了新的参考框架, 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,imToken官网, 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。
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。
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,这一调制在低纬度陆相序列中的探测,将沉积噪声模型应用于调谐后的古气候代用指标序列, 本期文章:《中国科学:地球科学》:Online/在线发表 近日, 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。
这主要是由于高分辨率年代学框架的可用性有限,建立了浮动天文时间标尺,表明气候不稳定性可能影响了沉积体制的变化, 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,最新IF:5.7 官方网址: https://www.sciengine.com/SCES/home 投稿链接: https://mc03.manuscriptcentral.com/sces , it provides a robust chronological framework for stratigraphic interpretation and inter-section correlation. Applying the sedimentary noise model to the tuned paleoclimate proxy series,该周期对应于火星-地球的s4s3长期共振, largely due to the limited availability of high-resolution chronological frameworks. Here,。
欢迎分享转载→ 附:英文原文 Title: Orbital forcing of paleocliimToken官网下载mate an
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