资源导刊·地球科技版
資源導刊·地毬科技版
자원도간·지구과기판
RESOURCES GUIDE·EARTH SCIENCE AND TECHNOLOGY
2014年
11期
30-31
,共2页
赋矿%断裂%构造%成矿条件
賦礦%斷裂%構造%成礦條件
부광%단렬%구조%성광조건
Hosting ore%Fracture%Structure%Metallogenic projection
通过对槐树坪金矿区 F29赋矿断裂构造性质的综合分析,本文认为 F29断裂属于浅部层次的断裂构造,总体上显示张性-张扭性断裂构造特征,有利于成矿物质的沉淀聚集,但延伸程度有限,延深小于1000 m。F29赋矿断裂构造带内金矿化较好,其形态不规则,具张性断裂特征,带内可见大量角砾岩、擦痕、断层泥,呈现出多期次构造活动的特点。该构造带内矿化阶段划分为三个阶段,最后一个阶段晚期的张性构造活动为 Au 矿化的主要成矿阶段。F29断裂构造力学性质表明,该断裂构造经历过多期构造应力场变化,伴随构造应力场变化出现张扭-压扭交替式构造运动,具复合性断裂构造性质。
通過對槐樹坪金礦區 F29賦礦斷裂構造性質的綜閤分析,本文認為 F29斷裂屬于淺部層次的斷裂構造,總體上顯示張性-張扭性斷裂構造特徵,有利于成礦物質的沉澱聚集,但延伸程度有限,延深小于1000 m。F29賦礦斷裂構造帶內金礦化較好,其形態不規則,具張性斷裂特徵,帶內可見大量角礫巖、抆痕、斷層泥,呈現齣多期次構造活動的特點。該構造帶內礦化階段劃分為三箇階段,最後一箇階段晚期的張性構造活動為 Au 礦化的主要成礦階段。F29斷裂構造力學性質錶明,該斷裂構造經歷過多期構造應力場變化,伴隨構造應力場變化齣現張扭-壓扭交替式構造運動,具複閤性斷裂構造性質。
통과대괴수평금광구 F29부광단렬구조성질적종합분석,본문인위 F29단렬속우천부층차적단렬구조,총체상현시장성-장뉴성단렬구조특정,유리우성광물질적침정취집,단연신정도유한,연심소우1000 m。F29부광단렬구조대내금광화교호,기형태불규칙,구장성단렬특정,대내가견대량각력암、찰흔、단층니,정현출다기차구조활동적특점。해구조대내광화계단화분위삼개계단,최후일개계단만기적장성구조활동위 Au 광화적주요성광계단。F29단렬구조역학성질표명,해단렬구조경력과다기구조응력장변화,반수구조응력장변화출현장뉴-압뉴교체식구조운동,구복합성단렬구조성질。
By?analyzing?its?properties,?F29?fracture?structure?is?the?shallow?level?fracture?structure,?and?shows?the?character?of?transtensional-compression?and?torsion?fracture?structure.?This?is?good?for?precipitation-accumulation?of?metallogenic?materials,?but?its?extendible?extent?may?be?limit,?and?the?extendible?extent?is?possibly?less?than?1000?meters.?Au?mineralization?of?fracture?structure?zone?of?F29?hosting?ore?is?good.?The?fracture?structure?zone?is?irregular?shape,?and?its?activity?has?the?feature?of?tensional?fracture.?There?are?a?lo?of?breccias,?scratches,?and?fault?gouge?to?show?the?character?of?multistage?structure?movement.?The?mineralization?stage?of?the?structure?zone?is?divided?into?three?stages.?The?last?stage?is?late?tensional?structure?movement,?and?this?is?the?main?metallogenic?stage.?The?mechanical?properties?of?F29?fracture?structure?show?it?suffers?several?change?of?multistage?structure?stress?field,?accompanying?altering?transtensional-compression?and?torsion?structure?movement,?and?has?the?complex?fracture?structure?properties.