浙东新昌中生代火山杂岩与火山-沉积岩系特征及其地貌  

On Volcanic Complex of Mesozoic Era and Volcanic-sedimentary Rock Landform in Xinchang County

作　　者：徐祝余 

机构地区：[1]浙江省新昌县地理学会,浙江新昌312580 [2]新昌县知新中学,浙江新昌312580

出　　处：《绍兴文理学院学报》2014年第7期8-12,26,共6页Journal of Shaoxing University

摘　　要：新昌地处我国东南部,特殊的地理位置使其很好地记录了白垩纪发生在我国东南沿海地区的地质演化过程,尤其是保存了当时地质环境下形成的复合火山杂岩与火山-沉积岩系等地质记录,是我国东南沿海地区该时期地质活动的全息档案馆,同时也是复合型丹霞地貌的代表,在我国地学领域有极高的科学研究价值.在新昌出露的复合火山杂岩包括复合岩体、复合岩墙、复合岩流、岩石包体等,主要出露在儒岙、镜岭、拔茅等地.火山-沉积岩系主要属于红色砂砾岩与凝灰岩的组合,分别发育了不同的地貌,主要分布在穿岩—南岩地貌区、潜溪地貌区、大佛寺解开岩—罗汉洞地貌区等.Located in the southeast of China, Xinchang county has recorded the whole process of the geological evolution, especially volcanic complex and volcanic -sedimentary rock, which happened in southeastern China＇s coastland during the Cretaceous Period owing to its special situation. The geological records of sedimentary rocks are an archive of geological activities in the coastal area in that period. Meanwhile, it stands for the composite Danxia landform worthy of scientific research. The volcanic complex includes composite rock, composite dike, composite rock flow, and xenoliths etc. which appear in Ru＇ao, Jingling and Bamao. Volcanic - sedimentary rock, composed of verrucano and tuff, mainly appears in Chuan Rock Landform district, Qianxi Landform district and Dafou Temple and Luohan Hole Landform district.

关 键 词：火山杂岩 火山-沉积岩系 地貌 新昌 

分 类 号：P583[天文地球—岩石学] P931.2[天文地球—地质学]