河南科学
河南科學
하남과학
HENAN SCIENCE
2014年
9期
1758-1762
,共5页
锑矿床%地质特征%矿床成因%找矿前景%班子沟
銻礦床%地質特徵%礦床成因%找礦前景%班子溝
제광상%지질특정%광상성인%조광전경%반자구
antimony deposit%geological characteristics%ore deposit genesis%ore prospecting%Banzigou
班子沟锑矿床地处华北地台和扬子地台两大构造单元的过渡地带,北秦岭褶皱带东段,区域构造线呈NNW-SEE 。其赋矿围岩为古元古界秦岭群(Pt1Q)雁岭沟组(Pt1y):主要岩性为白云大理岩、黑云斜长片岩、斜长角闪片岩、云母石英片岩等;本区秦岭群地层属Sb高背景区,微量元素分析结果表明,岩石中Sb、Pb、As等金属元素富集,为矿源层(矿源岩)。区域上在双槐树-五里川一带Sb、Pb、As为高丰度值密集异常富集区,该区已查明锑矿床十余处。班子沟矿区位于锑异常富集区中部,目前所探明的矿石类型主要为角砾状矿石、浸染状矿石、脉状-网脉状矿石,通过进一步勘查可望发现大型块状等类型矿床,找矿前景广阔。
班子溝銻礦床地處華北地檯和颺子地檯兩大構造單元的過渡地帶,北秦嶺褶皺帶東段,區域構造線呈NNW-SEE 。其賦礦圍巖為古元古界秦嶺群(Pt1Q)雁嶺溝組(Pt1y):主要巖性為白雲大理巖、黑雲斜長片巖、斜長角閃片巖、雲母石英片巖等;本區秦嶺群地層屬Sb高揹景區,微量元素分析結果錶明,巖石中Sb、Pb、As等金屬元素富集,為礦源層(礦源巖)。區域上在雙槐樹-五裏川一帶Sb、Pb、As為高豐度值密集異常富集區,該區已查明銻礦床十餘處。班子溝礦區位于銻異常富集區中部,目前所探明的礦石類型主要為角礫狀礦石、浸染狀礦石、脈狀-網脈狀礦石,通過進一步勘查可望髮現大型塊狀等類型礦床,找礦前景廣闊。
반자구제광상지처화북지태화양자지태량대구조단원적과도지대,북진령습추대동단,구역구조선정NNW-SEE 。기부광위암위고원고계진령군(Pt1Q)안령구조(Pt1y):주요암성위백운대리암、흑운사장편암、사장각섬편암、운모석영편암등;본구진령군지층속Sb고배경구,미량원소분석결과표명,암석중Sb、Pb、As등금속원소부집,위광원층(광원암)。구역상재쌍괴수-오리천일대Sb、Pb、As위고봉도치밀집이상부집구,해구이사명제광상십여처。반자구광구위우제이상부집구중부,목전소탐명적광석류형주요위각력상광석、침염상광석、맥상-망맥상광석,통과진일보감사가망발현대형괴상등류형광상,조광전경엄활。
The Banzigou antimony deposit is located in the two tectonic units’stransition zone of the North China platform and the Yangzi platform,in the east of North Qinling fold belt,tectonic line presents NNW-SEE. The ore rock is Guyuan ancient Qinlingqun(Pt1Q)Yanlinggou group(Pt1y):the main lithology of dolomitic marble,dark clouds flash schist and plagioclase schist,long oblique angle of mica quartz schist,etc.;The Qinlingqun strata in this area belongs to Sb high background,microelement analysis results indicate that the rocks in the enrichment of metallic elements such As,Sb,Pb,As,which is for the source bed(source rock). In the area of Shuanghuaishu-Wulichuan, Sb,Pb,As is rich as intensive high abundance ratios value anomaly,and the area has identified the antimony deposit more than 10 places. The antimony deposit of Banzigou is located in the middle of antimony anomalies enrichment region. As far as now,the ore types verified are mainly breccia,disseminated ore,ore vein-net vein ore. Through further exploration,the area is expected to find large block rich ore and other types of ore,and has a vast ore prospecting.