Table 5 Eigenvector statistics of selected ASTER bands 4, 6, 7 and 9 for kaolinite.

From: Gold exploration in the Gabal Abu Karahish area, Central Eastern Desert, Egypt: an integrated geological perspective

Eigenvector

B4↑

B6↓

B7↑

B9↓

Stdev

Eigenvalue

Eigen%

PC 1

0.9624

-0.18021

0.189971

-0.07225

0.080356

0.006967

97.8

PC 2

-0.18756

-0.14708

0.924177

0.298472

0.016923

0.000079

1.1

PC 3

-0.10212

-0.92265

-0.25499

0.270689

0.017982

0.000067

0.9

PC 4

-0.16787

-0.30758

0.211639

-0.91237

0.007529

0.00001

0.2

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