Supporting Information for Far-foreland basement uplift also influences the formation of fold-and-thrust belts

This document serves as the supplementary material for a manuscript intended for submission to a specialized journal. The study employs analog tectonic modeling to evaluate the potential structural influence of a far-foreland basement uplift situated hundreds of kilometers from the orogen. It contains
 One text describing how the scaling between our model and its prototype was calculated.
 Five figures including:
Figure S1. Raw photos corresponding to Figure 3 in the main text;
Figure S2. Raw photos showing two en echelon boundaries of the modeled broom-like deformation belt;
Figure S3. Nine cross-sections at the end of the modeling, with their locations indicated in a map-view photo;
Figure S4. Comparative experiment A1, in which the investigated far-foreland basement uplift has two vertical frontal edges;
Figure S5. Comparative experiment A2, in which the investigated far-foreland basement uplift has two gently dipping frontal edges;
 One table listing the properties of the used materials and their natural counterparts, as well as the resulting scale ratios.
 One animation (Movie S1) showing the full evolution of the presented model in the main text.
Additional details 1: In the experiment presented in the main text, a two-segment far-foreland basement uplift was set up, with one segment having a vertical frontal edge and the other a gently dipping frontal edge (dip angle: 30°). In this supplementary file, two additional comparative experiments A1 and A2, with different frontal geometries of the far-foreland basement uplift are presented. A brief comparison of these two experiments with the geological prototype is provided in the corresponding figure captions.
Additional details 2: The total shortening of the simulation experiment presented in the main text is 245 mm. For clarity and conciseness, Figure 3 in the main text only shows the situation up to a shortening of 216 mm. In this supplementary material, representative images of the subsequent evolution of the experimental model are additionally presented as Figures S2 and S3.

本文件为投稿至专业期刊的研究稿件的补充材料。本研究采用类比构造模拟实验(analog tectonic modeling)，评估距造山带(orogen)数百公里的远前陆基底隆起(far-foreland basement uplift)对构造的潜在影响。本补充材料包含以下内容：
1. 一篇阐述本实验与自然原型间尺度换算方法的文本；
2. 五组附图，具体如下：
图S1：对应正文中图3的原始照片；
图S2：展示模拟帚状变形带的两条雁列(En echelon)边界的原始照片；
图S3：模拟实验结束时的9条剖面，其位置已在俯视照片中标注；
图S4：对比实验A1，该实验中所研究的远前陆基底隆起具有两个垂直前缘边界；
图S5：对比实验A2，该实验中所研究的远前陆基底隆起具有两个缓倾前缘边界；
3. 一张表格，列述所用实验材料及其天然对应物的物性参数，以及相应的尺度比；
4. 一段动画（影片S1，Movie S1），展示正文中所呈现模型的完整演化过程。

附加说明1：正文中的模拟实验设置了两段式远前陆基底隆起，其中一段具有垂直前缘边界，另一段具有30°倾角的缓倾前缘边界。本补充材料额外呈现了两组对比实验A1与A2，二者的远前陆基底隆起前缘几何形态存在差异，对应附图的图注中已简要阐述了这两组实验与地质原型的对比情况。
附加说明2：正文中的模拟实验总缩短量为245 mm。为保证内容清晰简洁，正文中的图3仅展示了缩短量达216 mm时的实验状态。本补充材料额外呈现了该实验模型后续演化阶段的代表性图像，即图S2与图S3。