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主要通过对晚古生代及中生代地层的岩石组合、岩相及构造特征的分析，认为浙西北地区直到早三叠世仍为一倾向东南的被动大陆边缘，中三叠世到白垩纪主要发育前陆磨拉石沉积；板块碰撞始于早三叠世晚期，逆冲推覆构造和冲褶席为浙西北地区的主要构造形式，推覆方向自南东向北西。浙西北地区残存的晚古生代地层中油气显示比较普遍（龙潭组显示最好），表明该区有一定油气勘探前景。该区晚古生代海相地层中的3套生储盖组合相互配套，其中油源岩在早、中侏罗世进入成熟阶段，现达成熟─高成熟或过成熟阶段；下三叠统有油源岩和储集岩，缺乏连续盖层。浙西北地区油气勘探的难题是聚集和保存条件，需要进一步研究其推覆构造及区域性滑脱面，并研究被陆相断陷沉积覆盖的海相地层潜山带的分布。
Mainly through the Late Paleozoic and Mesozoic rock assemblage, lithofacies and structural characteristics of the analysis, that the Northwest Zhejiang until the Early Triassic is still a passive southeast margin of the passive continental margin, the Middle Triassic to Cretaceous main foreland Molasse. The plate collision began in the late Early Triassic. The thrust nappe structure and the padded mat were the main tectonic forms in the northwestern Zhejiang Province, and the thrusting direction was from south to east to northwest. The remnant of Late Paleozoic strata in northwestern Zhejiang show more common hydrocarbon (Longtan Formation shows the best), indicating that there is some prospect of oil and gas exploration in this area. In the Late Paleozoic marine strata, three reservoir-caprock assemblages are matched with each other, in which the source rocks entered the mature stage in the early Jurassic and are now mature-mature or mature stage. The Lower Triassic oil Source rocks and reservoir rocks, lack of continuous capping. The challenge of oil and gas exploration in northwestern Zhejiang is to accumulate and preserve the conditions, and further study of its nappe structure and regional slip surface and the distribution of buried strata in marine strata covered by continental facies faulted sediments should be studied.