琼北地区第四纪火山地质遗迹类型与地学意义  

Characteristics and Geological Significance of Quaternary Volcanic Geoheritages in Northern Hainan Island

作　　者：段政[1] 张翔[1] 周翠 余明刚[1] 褚平利[1] 洪文涛[1] DUAN Zheng;ZHANG Xiang;ZHOU Cui;YU Ming-gang;CHU Ping-li;HONG Wen-tao(Nanjing Geological Center,China Geological Survey,Nanjing,Jiangsu 210016;School of Earth Sciences,East China University of Technology,Nanchang,Jiangxi 330013)

机构地区：[1]中国地质调查局南京地质调查中心,江苏南京210016 [2]东华理工大学地球科学学院,江西南昌330013

出　　处：《地球学报》2021年第1期111-123,共13页Acta Geoscientica Sinica

基　　金：中国地质调查局地质调查项目(编号:DD20190603,DD20179384);中国地质调查局南京地质调查中心科研发展基金项目(编号:2019012);国家重点研发专项项目(编号:2016YFC0600203)联合资助。

摘　　要：琼北火山群是雷琼火山群的重要组成部分,也是探索我国东南沿海新生代以来构造演化以及玄武质岩浆活动过程的重要窗口。该区第四纪火山主要沿NW向的长流—仙沟断裂集中分布。研究区内火山地质遗迹类型丰富且典型,火山机构完整、保存程度高,火山喷发方式多样。本文在地质遗迹调查与评价基础上,将该区火山地质遗迹及相关资源分为6个大类、4个类、14个亚类及39个小类,并将之与我国典型的新生代火山地质遗迹进行对比分析,突出其火山地质及相关资源方面的优势,重点指出琼北地区第四纪火山的地学研究意义。Northern Hainan volcanoes constitute an important segment of Leizhou–Hainan volcanoes,and serve as a significant window to explore the tectonic evolution and basaltic magmatism process since Cenozoic in Southeastern coastal area of China.The volcanoes in the study area are mainly concentrated along the regional NE–trending Changliu–Xiangou Fault.There are abundant and typical types of volcanic geoheritages,especially for their integrated volcanic edifices with high degree of preservation and multiple volcanic eruption.In this paper,based on the geological survey and evaluation of the geoheritages,the authors divided the volcanic geoheritages and related resources into 6 categories,4 types,14 subtypes and 39 kinds.Additionally,the authors compared the characteristics and values with features of the typical Cenozoic volcanic geoheritages in China,highlighting their advantages in geoheritages and related resources,and emphasizing the geological significance of Quaternary volcanoes in northern Hainan Island.

关 键 词：火山地质遗迹 分类 对比分析 第四纪 琼北火山群 

分 类 号：P534.63[天文地球—第四纪地质学] P317[天文地球—古生物学与地层学]