Using EVT for Geological Anomaly Design and Its Application in Identifying Anomalies in Mining Areas

Table 2

The ADF test of Cu and Au.

Elements	ADT (-statistic)	Test critical values			Probability
		1% level	5% level	10% level
Cu	−33.93498	−2.565127	−1.940847	−1.616685	0
Au	−13.19081	−2.565127	−1.940847	−1.616685	0