Oligocene – Miocene contraction on the northeastern Tibetan Plateau: Insights From the evolution of intermontane basins in the West Qinling Belt

Text S1 Demagnetization and tests
Text S2 Anisotropy of magnetic susceptibility (AMS) analyses
Text S3 Detrital Zircons U-Pb Ages test
Figures S1 Orthogonal (Zijderveld) vector plots of the representative thermal demagnetization behaviors of specimens from the Anhua section.
Figures S2 Equal-area plots of accepted ChRMs (185 sites) from the Anhua section in (a) geographic and (b) tilt-corrected coordinates.
Figures S3 AMS data. (a) Equal-area, lower-hemisphere projection of anisotropy of the maximum (blue squares), medium (green triangles) and minimum (pink circles) susceptibility axes in stratigraphic coordinates. (b) PJ–T (corrected degrees of anisotropy vs. shape parameter). (c) Flinn diagram.
Table S1. Main characteristics and interpretations of major sedimentary facies in this study.
Table S2. Fossils were discovered along the West Qinling Belt.
Table S3. Zircon U-Pb geochronological analyses.
Table S4. Quantitative comparison of age distributions for the Anhua basin (Z1&Z2; Z3&Z4).

文本S1 退磁与测试
文本S2 磁化率各向异性（Anisotropy of Magnetic Susceptibility，简称AMS）分析
文本S3 碎屑锆石U-Pb年代学测试
附图S1 安化剖面样品代表性热退磁行为的正交（齐杰弗尔德（Zijderveld））矢量图
附图S2 安化剖面185个采样点的合格特征剩磁（Characteristic Remanent Magnetization，ChRMs）的等面积投影图：(a) 地理坐标系下，(b) 倾斜校正坐标系下
附图S3 磁化率各向异性数据：(a) 地层坐标系下最大（蓝色方块）、中间（绿色三角）与最小（粉色圆形）磁化率轴各向异性的等面积下半球投影图；(b) PJ-T图（校正各向异性度与形状参数）；(c) 弗林图解
附表S1 本研究主要沉积相的基本特征与解释
附表S2 西秦岭带发现的化石
附表S3 锆石U-Pb年代学分析
附表S4 安化盆地（Z1与Z2；Z3与Z4）年龄分布的定量对比