Carbonnaceous bed is one of the major interfering factors in geophysical exploration, especially in electrical exploration. Aimed at finding an effective method to distinguish carbon anomalies from orecaused anomalies, the authors employed such integrated geophysical exploration methods as highaccuracy ground magnetic survey, timedomain induced polarization method (TDIP) and controlled source audiofrequency magnetotellurics (CSAMT) in search for ore deposits in Beishan area, Gansu Province, and attained remarkable achievements. The technique was successfully used to upgrade a leadzinc ore spot to a potential mediumsize polymetallic deposit. An integrated application of several geophysical methods can avoid such disadvantages in utilizing only one method as limitation and interpretation ambiguity. Such an integration has full advantages of all the geophysical methods, and can effectively distinguish orecaused anomalies from hidden anomalies related to carbonaceous covering bed. The results obtained by the authors are of great guiding significance for oreprospecting work in Beishan area of Gansu Province.
谢志峰, 张翔. 炭质地层覆盖区综合物探方法寻找隐伏矿床[J]. 物探与化探, 2010, 34(4): 448-453.
XIE Zhi-Feng, ZHANG Xiang. THE APPLICATION OF INTEGRATED GEOPHYSICAL METHODS#br#
TO THE PROSPECTING FOR CONCEALED ORE DEPOSITS #br#
IN CARBONACEOUS BED COVERING AREAS. Geophysical and Geochemical Exploration, 2010, 34(4): 448-453.