Table 9 Eigenvector statistics of selected ASTER bands 2, 3, 4 and 9 for iron oxides.

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

Eigenvector

B2↑

B3↓

B4↑

B9↓

Stdev

Eigenvalue

Eigen%

PC 1

0.963953

0.090142

-0.24649

0.043718

0.083281

0.007461

95.2

PC 2

0.013996

0.918021

0.395329

0.027491

0.018285

0.000318

4.1

PC 3

-0.25766

0.38613

-0.88159

-0.08547

0.023085

0.000038

0.5

PC 4

-0.06487

0.003844

-0.07582

0.995001

0.005696

0.000018

0.2

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