In the past,the occurrence of lamprophyre has been found in Dongwenhe area in Yi'nan county,and diamond particles and diamond indicator minerals have been obtained.However,the distribution and occurrence characteristics of lamprophyre are difficult to be ascertained by surface geological survey be-cause of the extensive coverage of Quaternary system in this area.In this paper,based on the differences of physical properties between rocks and ores,target areas based on the characteristics of gravity and magnet-ic fields have been optimized.Through comprehensive geophysical exploration,geophysical anomalies have been circled.Selecting some anomalies for verification,distribution and deep characteristics of lamprophyre in this area have been basically learned.According to regional geological and geophysical characteristics combined with the verification results,the diamond prospecting prospect in Dongwenhe area in Yi'nan county has been analyzed.It will play an important role in guiding the diamond prospecting in this area.
关键词
地球物理特征/钾镁煌斑岩/金刚石/沂南东汶河
Key words
Geophysical characteristics/lamproite/diamond/Dongwenhe river in Yi'nan county
万方数据