(S (S (BASENP (NNP Goldfields)) (VP (VBZ is) (VP (VBN considered) (NP (NP (BASENP (NN one)) (PP (IN of) (NP (NP (DT the) (NP (ADJP (ADVP (RBR more)) (ADJP (RB geologically) (JJ stable))) (NNS regions))) (PP (IN of) (BASENP (NNP Australia)))))) (COMMA ,) (PP (IN in) (NP (BASENP (NN comparison)) (PP (TO to) (NP (NP (BASENP (DT the) (JJ southwest) (NN corner)) (PP (IN of) (BASENP (DT the) (NN state)))) (COMMA ,) (SBAR (WHNP (WDT which)) (S (VP (VBZ is) (NP (BASENP (DT an) (JJ active) (NN zone)) (PP (IN at) (NP (BASENP (DT the) (NN edge)) (PP (IN of) (BASENP (DT the) (NNP Yilgarn) (NN block))))))))))))))))) (PERIOD .))