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. 2023 Sep 12;13:15058. doi: 10.1038/s41598-023-42313-9

Table 2.

DPCA Eigenvector values for finding out gossan, argillic, propylitic, and phyllic alterations.

Eigenvector (gossan) B1 B2 B3 B4
DPCA 1 0.365789 0.501891 0.540033 0.568039
DPCA 2 0.322277 0.377719 0.290905 − 0.81783
DPCA 3 − 0.68629 − 0.15485 0.704771 − 0.09127
DPCA 4 0.539766 − 0.76253 0.356422 − 0.0127
Eigenvector (argillic) B1 B4 B5 B7
DPCA 1 − 0.25245 − 0.6244 − 0.54216 − 0.50245
DPCA 2 − 0.95873 0.077145 0.245439 0.120989
DPCA 3 − 0.12802 0.716462 − 0.67946 − 0.09287
DPCA 4 − 0.02671 − 0.30142 − 0.42913 0.851049
Eigenvector(propylitic) B1 B4 B5 B8
DPCA 1 0.257148 0.624428 0.538465 0.504005
DPCA 2 0.950893 − 0.12255 − 0.28247 − 0.03154
DPCA 3 0.154596 0.091752 0.57012 − 0.80165
DPCA 4 0.076013 − 0.76593 0.552476 0.319906
Eigenvector (phyllic) B1 B4 B6 B7
DPCA 1 − 0.2584 − 0.62873 − 0.53045 − 0.50651
DPCA 2 − 0.96173 0.102701 0.209226 0.14404
DPCA 3 − 0.08985 0.635997 − 0.76433 0.056838
DPCA 4 0.015033 − 0.4355 − 0.30107 0.848213