Characteristics of geology and mineral resources of the Hoành Sơn area
Võ Quang Hồng
Outstanding structures in the Hoành Sơn area consist of Mesozoic grabens developed upon the transformed Paleozoic folded basement. In these structures, gold mineralization includes two types, namely: quartz-gold-polymetallic sulphide (with the amount of sulphide ~20%) and quartz-gold - sulphide-poor (with the amount of sulphide ~3%) types. The gold mineralization is closely controlled by graben structures, especially anticlines in grabens, Middle Triassic volcanic-subvolcanic-hypabyssal structures in grabens and NW-SE trending fault and fissure systems.
Người biên tập: Trần Đình Sâm.