堪察加属库里尔—堪察加岛弧,具有很好的油气远景,但勘探程度很差;不久前实际上还没有中生代地层深部构造的资料,而中生代地层正是油气勘探的目标。用重力异常估计新生代沉积厚度的主要困难在于没有标准资料(地壳测深、深井、地震 Kamchatka is a Courier-Kamchatka arc with good hydrocarbon prospects but poor exploration; in fact, there is virtually no data on the deep tectonics of the Mesozoic stratigraphy, which was the target of exploration for oil and gas. The major difficulty in estimating Cenozoic sediment thickness using gravity anomalies is the absence of standard data (crustal soundings, deep wells, earthquakes