1∶50 000 Mineral Geological Map Database of the Bazang Map-sheet, Gansu

The 1∶50 000 mineral geological map database of the Bazang Map-sheet(I48E013009), Gansu was compiled under the guidance of the Guide for Compiling Maps ofMineral Geological Survey Results (draft for discussion) and the three-in-one ore prospectingprediction geological model. The collected data include the previous 1∶50 000 regionalgeological survey primitive data maps, mineral investigation reports, scientific researchreports, academic papers, and gathered data in the 1∶50 000 specific mapping. Data recordsinclude 811 entries on attitude, 102 on geological boundary, 5 on isotopic age, 2 on fossil, 21on mineral information, 22 on mineralization alteration, 86 on fault, 111 on fold, and 65 onformation. The map face is a combination of the master map and corner maps to give a full,objective presentation of the regional geological boundaries, rock formations, eras, faults, foldaxial traces, joints, cleavages, wrinkle lineations, mullion structures, fault plane striations,mineralization alterations, mineral information, and the metallogenic geology of typicaldeposits, covering the Caledonian storm deposits and fold deformations, Early Carboniferousferruginous nodules, and a series of new discoveries and new understandings. In the attributesof the “formation-structure” layer, ore-bearing formations and mineralization alterations areemphasized. In the “fault” layer and “fold” structure layer, ore-forming structures areemphasized. The database provides basic data for the investigation and research of regionalmetallogenesis as well as engineering geology and environmental geology, and can beretrieved by users whenever so needed. The data volume of the Bazang Map-sheet isapproximately 90.2 MB for the MapGIS spatial database and 2.51 MB for the Access database.甘肃巴幅（I48E013009）1∶5万矿产地质图数据库，依据《矿产地质调查成果图件编制指南（讨论稿）》及“三位一体”找矿预测地质模型编制完成。本次归集的数据涵盖既往1∶5万区域地质调查原始数据图件、矿产勘查报告、科研报告、学术论文，以及该1∶5万专项填图所采集的专项数据。数据记录包含：产状数据811条、地质界线数据102条、同位素年龄数据5条、化石数据2条、矿产信息21条、矿化蚀变数据22条、断层数据86条、褶皱数据111条、地层数据65条。该图件由主图与接图表组合而成，可全面、客观地展示区域地质界线、岩石地层、地质年代、断层、褶皱轴迹、节理、劈理、皱纹线理、窗棂构造、断层面擦痕、矿化蚀变、矿产信息，以及典型矿床的成矿地质特征，涵盖加里东期风暴沉积与褶皱变形、早石炭世铁质结核等一系列新发现与新认知。在“地层-构造”图层属性中，重点突出含矿地层与矿化蚀变信息；在“断层”图层与“褶皱构造”图层属性中，重点突出成矿构造信息。本数据库可为区域成矿作用调查研究、工程地质与环境地质工作提供基础支撑数据，支持用户按需检索调用。该图幅的空间数据量：MapGIS空间数据库约90.2 MB，Access数据库约2.51 MB。