南岭地区燕山期花岗岩可分为壳源重熔及其分异型（C型）、壳幔混合及其分异型（H型）和铝质A型花岗岩三大类。原生锡矿（包括云英岩型、变花岗岩型、矽卡岩型、石英脉型、破碎带蚀变岩型和斑岩型六个主要类型）与H型和铝质A型花岗岩关系密切。本区矿床（点）主要沿古板块结合带、大型隆起区与坳陷区结合部、深大断裂（带）等三个部位分布，具体分布在一带（NE向锡田—骑田岭—九嶷山—花山、姑婆山钨锡多金属成矿带）和六区（康家湾—大义山锡多金属成矿集中区、都庞岭锡多金属成矿集中区、粤北赣南锡多金属成矿集中区、湘东赣西锡钨多金属成矿集中区、丹池锡铅锌多金属成矿集中区、九万大山锡多金属成矿集中区）。南岭地区从晋宁期到燕山晚期均有与花岗岩有关的锡矿床（点）形成，其中，燕山期150~160 Ma为南岭成岩成矿高峰期。提出南岭成矿带作为找矿重点的11个找矿远景区，具体找矿工作应围绕以下几个方向展开：（1）老矿山的深部及外围找矿；（2）深入岩基找矿；（3）隐伏花岗岩分布区找矿；（4）区域性不同方向构造带交汇地带找矿；（5）寒武系与泥盆系不整合面附近有望找到破碎带蚀变岩型（底砾岩型）钨锡矿；（6）远离花岗岩岩体破碎带蚀变岩型钨锡矿的寻找。%Yanshanian granitoids in Nanling Range can be subdivided into three genetic categories: crust remelting type (C-type), crust-mantle derived magmatic mixing type (H-type) and aluminous A-type granites in this paper. The later two types are closely related with primary tin deposits which can be subdivided into greisen, altered granite, skarn, quartz vein, altered fracture zone and porphyry type. Deposits and occurrences in this area are dominantly distributed along the ancient plate suture, juncture of large-scale uplift and sag and deep faults and mainly gather in one metallogenic belt and six metallogenetic areas. One belt is NE-trending Xitian-Qitianling-Jiuyishan-Huashan-Guposhan Sn-W polymetallic belt and six Sn (and/or W) polymetallic areas are Kangjiawan-Dayishan regions, Dupangling, northern Guangdong-southern Jiangxi,eastern Hunan-western Jiangxi, Nandan-Hechi, Jiuwandashan respectively. Former geochronological researches show that granite-related mineralization in this area took place from Greenvillian to late Yanshanlian with a peak of 150~160Ma. Based on regional metallogenic characteristics in Nanling Range, 11 prospecting targets are chosen for further exploration. A key attention should be paid to the following aspects in future ore exploration: (1) deep and periphery of old mines; (2) prospecting into batholith; (3) prospecting in concealed granite distribution area; (4) exploration in convergence zones of regional faults in different directions; (5) searching for altered fracture zone-type (bottomed conglomerate-type) Sn-W deposit along unconformity between Cambrian and Devonian and (6) altered fracture zone-type Sn-W deposit away from the granitic rock.
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