These models are constructed primarily from empirical observations of known mineral deposits and from theories of ore-forming processes. The explorer uses the models to identify those geological features that are critical to the formation of the mineralization being modeled, and then tries to select areas for exploration that exhibit as many of the critical features as possible.
8. It can be inferred from the passage that the efficiency of model-based gold exploration depends on which of the following?
I. The closeness of the match between the geological features identified by the model as critical and the actual geological features of a given area
II. The degree to which the model chosen relies on empirical observation of known mineral deposits rather than on theories of ore-forming processes
III. The degree to which the model chosen is based on an accurate description of the events leading to mineralization (是对ore-forming process的解释)
(A) I only
(B) II only
(C) I and II only
(D) I and III only(D)ffice ffice" />
(E) I, II and III
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