128 Figure 7 - Top-weighted sPCA loading maps from the Case 1 ranking. The dominant components highlight the spatial modes most strongly expressed by the reference deposit and emphasized in the similarity comparison. PC2 and PC3 have the highest absolute deposit scores (Figure ), indicating that these components capture spatial patterns expressed strongly by the deposit, whereas PC1 explains the greatest overall regional variance but is less strongly expressed in the deposit itself. The reconstruction progression further shows that the highest-weighted modes are also the modes that rebuild the observed deposit signal. In this sense, the deposit-based weights are not only ranking coefficients, but also quantify the relative importance of each spatial mode in reconstructing the deposit signature. When the top 250 prediction windows were mapped across the demonstration area (Error! Reference source not found.), several windows coincided with k nown mineral occurrences, including deposits 5,8, and 11, even though these deposits were not used as reference inputs. Figure 2 - Regional map of the demonstration area showing the top 250 sliding windows identified by the depositweighted similarity analysis for Case 1. Colored rectangles indicate windows whose TMI spatial patterns most closely resemble the reference Paulo Afonso deposit signature.
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