Orogenic crustal thickening leads to increased continental elevation and runoff into the oceans, but there are fundamental uncertainties in the temporal patterns of thickening through Earth history. U‐Pb age and trace element data in detrital zircons from Antarctica are consistent with recent global analyses suggesting two dominant peaks in average crustal thickness from ~2.6 to 2.0 Ga and ~0.8 to 0.5 Ga. Shifts in marine carbonate ⁸⁷Sr/⁸⁶Sr ratios show two primary peaks that post‐date these crustal thickness peaks, suggesting significant weathering and erosion of global continental relief. Both episodes correlate well with zircon trace element and isotope proxies indicating enhanced crustal and fluid input into subduction zone magmas. Increased crustal thickness correlates with increased passive margin abundance and overlaps with snowball Earth glaciations and atmospheric oxygenation, suggesting a causal link between continental rift‐drift phases and major transitions in Earth's atmospheric and oceanic evolution.

中文翻译：

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地壳厚度，裂谷漂移以及与关键全球事件的潜在联系

造山带地壳增厚导致大陆升高和向海洋的径流增加，但是在整个地球历史上增稠的时间模式存在根本不确定性。南极碎屑锆石的U-Pb年龄和微量元素数据与最近的全球分析一致，表明平均地壳厚度有两个显着峰，分别为〜2.6至2.0 Ga和〜0.8至0.5 Ga。海洋碳酸盐的转变⁸⁷ Sr / ⁸⁶Sr比值显示出两个早于这些地壳厚度峰值的主要峰值，表明全球大陆陆块的风化和侵蚀作用明显。这两个事件都与锆石的微量元素和同位素近似相关，表明向俯冲带岩浆中的地壳和流体输入增加。地壳厚度的增加与被动边缘裕度的增加相关，并与雪球地球的冰川和大气的氧合作用重叠，这表明大陆裂谷漂移阶段与地球的大气和海洋演化的主要转变之间存在因果关系。