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Effect and Prospect of Basic Geological Survey Based on Airborne Gravimetry in China
Author(s) -
Wenyong LI,
Jianxin ZHOU,
Shengqing XIONG,
Zhihong GUO,
Wenfen LU,
Jianchun XU,
Yanxu LIU
Publication year - 2012
Publication title -
acta geologica sinica ‐ english edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.444
H-Index - 61
eISSN - 1755-6724
pISSN - 1000-9515
DOI - 10.1111/j.1755-6724.2012.00609.x
Subject(s) - geology , gravimetry , bouguer anomaly , submarine pipeline , terrain , inversion (geology) , prospecting , gravimeter , geological survey , tectonics , geologic map , gravity anomaly , seismology , geomorphology , geophysics , mining engineering , paleontology , geography , cartography , geotechnical engineering , oil field , casing , reservoir modeling
The airborne gravimetry was an important leap and innovation in the world's history of geophysical exploration. China's first test of the airborne gravity geological survey in the onshore‐offshore transitional area of the western and southern part of the Bohai Sea was successful and effective in geology. Based on the airborne gravity data, and combining previous ground gravity, seismic and drilling data etc., we carried out the geological interpretation by forward and inverse methods. The result shows that the airborne Bouguer gravity anomaly was clear, the fracture interpretation was reliable, and the inversion depth of the main geological interfaces was relatively accurate. This airborne gravity geological survey not only filled the exploring gaps in the onshore‐offshore transitional area, and realized the geological and tectonic junction between the sea and the land, but also discovered four local gravity anomalies, 11 fractures and three sags or subsags, and so on. The good geological effect of airborne gravimetry not restricted by terrain condition shows that it can be served as a new geophysical method in the exploration of complex terrain physiognomy area such as mountain, jungle, desert, marsh, onshore‐offshore transitional area and so on, and has an extensive application prospect in China in the future.