刚果(金)加丹加省遥感地质解译与矿产勘查战略选区

为研究刚果(金)加丹加省内成矿特征和矿床分布规律,以Landsat ETM+为主要信息源,分析了加丹加省遥感影像特征,对其地层、岩体、构造等进行了遥感地质解译,将研究区划分出西部桑多阿—卡尼亚玛构造稳定区、中部北东向构造带影像区、东北部普韦托—卡莱米影像区、东南部卢菲利前陆影像区和南部卢菲利弧形构造带影像区等5个构造影像单元。分析总结了每个构造影像区的主要构造类型、成矿特征、控矿要素及各构造影像区区域应力特征,建立了加丹加省区域构造格架,厘定了各影像区内控岩、控矿大断裂,基本查明了研究区成矿地质背景。在此基础上,结合相关地质矿产资料,筛选出莫坎博铜矿预测区、穆梅纳铅锌矿预测区、Mobambi铜钴矿床预测区、勘苏祁铜钴矿床预测区、Mudinga铜银矿床预测区、Kavabala铜矿预测区及昆圭铜矿预测区等7处有利成矿地段。

Remote sensing geological interpretation and target area delimitation of mineral exploration in Katanga Province,Congo (DRC)

In order to study the metallogenic characteristics and the distribution rule of deposit in Katanga of Congo (DＲC)，the authors analyzed the characteristics of remote sensing images by means of ETM + data as the main information source，and interpreted strata，rock mass and structures in this area． Five tectonic image units were divided，including the Sandoa- Kaniama stable area in the west，image unit of NE tectonic zone in the middle， Pweto - - Kalemie image unit in the northeast，image units of Lufilian foreland in the southeast and Lufilian arcuate tectonic belt in the south． Through analyzing and summaring main structural types，metallogenic characteristics， ore-controlling factors and regional stress state in each image unit，the regional tectonic framework in Katanga Prov- ince was recognized． The major faults which control rocks and ores were distinguished，and mineralization geolog- ical background in the studied area was basically identified． On this basis，combining with relevant data of geology and mineral resources，the authors delimitated 7 target areas of mineral exploration，including Mokambo Cu ore predicting area，Mumena Pb- - Zn ore predicting area，Kansuki Cu- - Co ore predicting area，Mudinga Cu- - Ag ore pre- dicting area，Kavabala and Kungui Cu ore predicting areas．