香港世界地质公园碎斑熔岩柱状节理构造特征

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。     

Geological Society of Africa

History and objectives,The ambitious and forward-looking decision to establish a pan-African geological society was taken during the course of a conference on African geology held in Ibadan, Nigeria in 1970. A Steering Committee was convened at that meeting under the Chairmanship of Professor Russell Black of the Department of Geology, Haile Selassie University, Addis Ababa, and the provisional constitution drafted by his Committee was approved at a second conference on African geology in Addis Ababa in 1973. Thus was the Geological Society of Africa (GSA.t) born. Its first President was Professor M O Owawoye (Nigeria) and Dr S M E1 Rabba (Sudan) became its first Secretary General.     

北京地质学会

北京地质学会(Geological Societyof Beijing)成立于1936 年3 月27 日,原名中国地质学会北平分会。学会由北京地区地质界具有一定水平和经验的地质科技工作者自愿联合发起成立,是经北京市民政局核准注册的北京地区地质科学学术性的社团组织。著名地质学家李四光先生是我会的创始人之一。     

Geological Society of India Bangalore

Announcements

Geological Society of India Bangalore     

The Black Country Geological Society

Britain has been noted for its local geological societies since the great amateur geology boom of the 19th century. Many such societies (old, new or re-formed) still exist. But what is their role in the 1980s? We asked Paul Shilston to describe the history and current activities of The Black Country Geological Society, of which he is Honorary Secretary.     

中国地质学会公布第二批地质文化村（镇）评定结果

根据《地质文化村（镇）建设工作指南（试行）》《地质文化村（镇）评审授牌和监督管理办法（试行）》和《地质文化村（镇）星级评定标准（试行）》等有关规定,中国地质学会组织了第二批地质文化村（镇）评定工作,经公示和复议,决定授予浙江省湖州市红里山山水平原地质文化村等8个村（镇）三星级地质文化村（镇）,授予天津市蓟州区常州砂岩峰林地貌地质文化村等16个村（镇）挂牌筹建地质文化村（镇）。     

中国地质学会印发地学科普研学基地（营地）评选授牌和监督管理办法（试行）通知

为了贯彻落实《全民科学素质行动计划纲要（2021—2035）》,普及地球科学知识,顺利开展地学科普研学基地（营地）的推荐与评选,中国地质学会秘书局制定了《中国地质学会地学科普研学基地（营地）评选授牌和监督管理办法 (试行)》,并经过中国地质学会第40届理事会第三十七次常务理事会议（通讯）审批通过,现予以印发,请遵照执行。