ds01.csv

Data Set S1. AMS data. AMS measurements were carried out using a 3D rotator AGICO MFK-1CS Kappabridge operating at 976 Hz with an applied field strength of 716 A/m. Specimens with group (Subunit A: G1=lapill + ash; G2 = bombs; G3= ash dominated. Subunit B; G4 = Lapilli dominated samples from site B2; G5 = matrix supported block collected from site B3; G6 = lapilli dominated, framework supported block collected from Site 3. Km = Bulk Susceptibility, K1 = Kmax Axis (most anisotropic), K2 = Kint axis (intermediate), K3 = Kmin axis (weakest axis of anisotropy). L = Lineation, F = Foliation, P = total anisotropy, T = shape. KnDec = Declination of axis Kn, KnInc = Kn axis inclination. F = test for anisotropy on Kmax, F12 test for anisotropy Kint, F23 test for anisotropy on Kmin. <3.5 is a failed test of anisotropy; samples with two or more failed axes are excluded. E12, E23, E13 = error for Kmax, Kint and Kmin axes of declination/inclination, respectively.

数据集S1。磁化率各向异性（Anisotropy of Magnetic Susceptibility，AMS）数据。
本次AMS测试采用搭载3D旋转器的AGICO MFK-1CS型Kappabridge磁化率仪完成，测试运行频率为976 Hz，外加场强为716 A/m。
试验标本按组别划分如下：亚单元A包含G1（火山砾+火山灰）、G2（火山弹）、G3（以火山灰为主的样品）；亚单元B包含G4（采自点位B2的以火山砾为主的样品）、G5（采自点位B3的基质支撑块体）、G6（采自点位3的以火山砾为主、骨架支撑的块体）。
各参数定义如下：
Km为体积磁化率（Bulk Susceptibility）；K1为Kmax轴（各向异性最强轴）；K2为Kint轴（各向异性中等轴）；K3为Kmin轴（各向异性最弱轴）。
L代表线理（Lineation），F代表面理（Foliation），P代表总各向异性度（total anisotropy），T代表形状参数（shape）。
KnDec为Kn轴的偏角（Declination of axis Kn），KnInc为Kn轴的倾角（Kn axis inclination）。
F为针对Kmax轴的各向异性检验，F12为针对Kint轴的各向异性检验，F23为针对Kmin轴的各向异性检验。各向异性检验不合格阈值为<3.5；存在2个及以上不合格轴的样品将被剔除。
E12、E23、E13分别为Kmax、Kint与Kmin轴的偏角/倾角误差。