大量的钻孔资料表明,浙江西北部长兴、湖州等地,地质层体结构相当复杂,古生代和中生代地质构造特征与邻区苏南、皖南明显一致,是中生代以来推覆构造强烈活动区。 A large number of borehole data indicate that the structures of geological layers in Changxing and Huzhou areas in northwestern Zhejiang are quite complicated. The Paleozoic and Mesozoic tectonic features are obviously consistent with those in the neighboring areas of southern Jiangsu and southern Anhui, and are strong nappe activity areas since the Mesozoic.