[1]王存智,朱清波,杨祝良,等.香港世界地质公园碎斑熔岩柱状节理构造特征[J].资源调查与环境,2015,36(04):252-260.
　WANG Cun-zhi,ZHU Qing-bo,YANG Zhu-liang,et al.. Journal of the Geological Society, 1997, 154: 1039-1052[J].Resources Survey and Environment,2015,36(04):252-260.
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香港世界地质公园碎斑熔岩柱状节理构造特征()
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《资源调查与环境》[ISSN:2096-1871/CN:32-1865/P]

卷:
36
期数:
2015年04期
页码:
252-260
栏目:
基础地质
出版日期:
2015-12-15

文章信息/Info

Title:
. Journal of the Geological Society, 1997, 154: 1039-1052
作者:
王存智; 朱清波; 杨祝良; 沈加林; 姜 杨; 靳国栋; 周效华; 时 磊
(中国地质调查局南京地质调查中心,南京210016)
Author(s):
WANG Cun-zhi;  ZHU Qing-bo;  YANG Zhu-liang;  SHEN Jia-lin;  JIANG Yang;  JIN Guo-dong;  ZHOU Xiao-hua;  SHI Lei
(Nanjing Center, China Geological Survey, Nanjing 210016, China)
关键词:
柱状节理; 流纹质碎斑熔岩; 粮船湾组; 世界地质公园
Keywords:
columnar joint;  rhyolitic porphyroclastic lava;  High Island formation;  Sai Kung; Hong Kong lobal geopark
分类号:
P542.36
摘要:
在香港世界地质公园西贡火山岩园区，白垩纪粮船湾组流纹质碎斑熔普遍发育完整的柱状节理，构成世界上面积最大的石柱群。在详细野外观察与测量基础上，了粮船湾组石柱群柱状节理构造特征，探讨了成因。石柱截面形态以六边形为主，少量五边形及不规则状，直径以13m为主；完整的单个石柱高一般2030m；石柱整体向NW和SW陡倾。粮船湾组火山岩非全部发育柱状节理，按发育程度可分为极发育、一般发育和不发育三种类型通过统计大量原生柱面产状，各个方向的柱面均有发育，其无序性符合冷凝收缩成因模式后期次生构造及海蚀作用对原生柱状节理有一定程度的。
Abstract:
The columnars of High Island Formation are the largest rhyolitic porphyroclastic lava columns in the Sai Kung volcanic rock regions, Hong Kong global geopark. On the basis of field investigation and measurement, the authors pursue the structural features and origin of these primitive columnar joints. It shows that not all the porphyroclastic lavas of High Island Formation occurred columnar joints, the columnar joints can be divided into three types, i.e., well-developed, sub-developed (destructed by secondary joints) and undeveloped. The sections of the volcanic columns are mainly hexagonal in shape, and partly pentagon and irregular. Their diameters are 1～3 meters and the heights are generally 20～30 meters. Most of them dip steeply towards the NW-trending and SW-trending. Occurring measurements of primitive columnar joints show theyhave various directions in cylinder, which conforms to the contraction-condensation model. Secondary joints and marine abrasion destroyed morphologies of columnar joints

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备注/Memo

备注/Memo:
基金项目：西贡地区火山岩石柱群和基性岩墙研究（项目编号：AFCD/SQ/223/2/C）、亚洲滨太平洋中新生代火山岩带地质特征及其与太平洋东岸火山岩带对比研究（项目编号：1212011120134）资助。第一收稿日期：2015-01-12 改回日期：2015-03-30基金项目：西贡地区火山岩石柱群和基性岩墙研究（项目编号：AFCD/SQ/223/2/C）、亚洲滨太平洋中新生代火山岩带地质特征及其与太平洋东岸火山岩带对比研究（项目编号：1212011120134）资助。第一作者简介：王存智，1983年生，男，助理研究员，
更新日期/Last Update: 2015-12-30