华南地质与矿产
華南地質與礦產
화남지질여광산
GEOLOGY AND MINERAL RESOURCES OF SOUTH CHINA
2012年
1期
27-34
,共8页
韧性剪切带型金矿%构造控矿特征%找矿标志%找矿方向%九岭-清水韧性剪切带%湘东北地区
韌性剪切帶型金礦%構造控礦特徵%找礦標誌%找礦方嚮%九嶺-清水韌性剪切帶%湘東北地區
인성전절대형금광%구조공광특정%조광표지%조광방향%구령-청수인성전절대%상동북지구
ductile shear zone-type gold deposits%ore-controlling structure characteristics%prospecting direction%prospecting criteria%Jiuling-Qingshui ductile shear zone%northeast Hunan province
九岭-清水韧性剪切带是湘东北三条区域规模的韧性剪切带之一,黄金洞、万古等金矿床就处于该剪切带上,是典型的受韧性剪切带控制的矿床。武陵-雪峰期的韧性剪切变形不仅形成了导矿通道和容矿空间,也促使冷家溪群含金建造成矿物质的活化迁移;加里东-燕山期形成的NE向深大断裂和伴随的大规模岩浆活动,导致成矿热液再次活化转移并沉淀成矿。韧性剪切构造为金成矿创造了空间条件,而且还通过力学-化学耦合机制参与活化转移成矿各个环节。本文总结了该类矿床的控矿特征和找矿标志,指出了该地区的找矿方向。
九嶺-清水韌性剪切帶是湘東北三條區域規模的韌性剪切帶之一,黃金洞、萬古等金礦床就處于該剪切帶上,是典型的受韌性剪切帶控製的礦床。武陵-雪峰期的韌性剪切變形不僅形成瞭導礦通道和容礦空間,也促使冷傢溪群含金建造成礦物質的活化遷移;加裏東-燕山期形成的NE嚮深大斷裂和伴隨的大規模巖漿活動,導緻成礦熱液再次活化轉移併沉澱成礦。韌性剪切構造為金成礦創造瞭空間條件,而且還通過力學-化學耦閤機製參與活化轉移成礦各箇環節。本文總結瞭該類礦床的控礦特徵和找礦標誌,指齣瞭該地區的找礦方嚮。
구령-청수인성전절대시상동북삼조구역규모적인성전절대지일,황금동、만고등금광상취처우해전절대상,시전형적수인성전절대공제적광상。무릉-설봉기적인성전절변형불부형성료도광통도화용광공간,야촉사랭가계군함금건조성광물질적활화천이;가리동-연산기형성적NE향심대단렬화반수적대규모암장활동,도치성광열액재차활화전이병침정성광。인성전절구조위금성광창조료공간조건,이차환통과역학-화학우합궤제삼여활화전이성광각개배절。본문총결료해류광상적공광특정화조광표지,지출료해지구적조광방향。
Jiuling-Qingshui ductile shear zone which is located at northeastern Hunan province is a famous gold mineralization-controlling structure,and Huangjindong,Wangu etc.gold deposits are formed in this region.The ductile shear deformation in Wuling-Xuefeng movement not is only build the ore-transmitting channel and ore-bearing spatial,but also activization the gold in Lengjiaxi Group.The NE-trending discordogenic fault and large scale magmatic activities in Caledonian-Yanshanian are vital for the reactivization of ore-forming hydrothermal fluid and sedimentary of ore minerals.Ductile shear structures are not only creating space for the gold mineralization,but also involved in all aspects of remobilization mineralization by mechanical-chemical coupling mechanisms.The ore-controlling characteristics and prospecting criteria for ductile shear-type deposits are summarized here,and prospecting direction of Jiuling-Qingshui area are also provided.