Va. Code Ann. § 45.2-108

The State Geologist shall exercise those powers and perform those duties, in relation to mineral resources, geology, and geophysical matters, that are conferred or imposed upon the Director by the provisions of this title, including powers and duties delegated to him by the Director. The State Geologist may also exercise and perform such other powers and duties as are lawfully delegated to him and such powers and duties as are conferred or imposed upon him by law.