裏表紙 Locality of the Geological survey area Photo; landscape in the survey area Eastern K58 area East of J59 area K59 area Contents Chapter 1 Introduction ..........................................................................................................1 1.1 Background of the Project...........................................................................................1 1.2 Objectives of the Project .............................................................................................1 1.3 Survey area of the Project...........................................................................................2 1.4 Tasks of the Project.....................................................................................................3 1.5 Schedule of the Project ...............................................................................................4 1.6 Framework of implementation of the Project ...............................................................5 1.6.1 Structure of JICA Project Team.............................................................................5 1.6.2 Counterpart Organization .....................................................................................7 1.7 Works in Madagascar..................................................................................................9 1.7.1 Outline ..................................................................................................................9 1.7.2 Workshop ...........................................................................................................12 1.7.3 Technology Transfer Seminar .............................................................................12 1.7.4 Participation in Mining INDABA ..........................................................................13 1.7.5 Participation in PDAC .........................................................................................14 1.8 Modification of the initial Plan....................................................................................14 Chapter 2 Works in Japan ..................................................................................................16 2.1 Overview ...................................................................................................................16 2.2 First-stage Works in Japan........................................................................................16 2.3 Second-stage Works in Japan...................................................................................17 2.4 Third-stage Works in Japan.......................................................................................17 2.5 Fourth-stage Works in Japan ....................................................................................17 2.6 Fifth-stage Works in Japan........................................................................................17 2.7 Other activities in Japan............................................................................................18 2.7.1 Technical support committee ..............................................................................18 2.7.2 Scientific Seminar...............................................................................................19 2.7.3 Collaborative research with AIST........................................................................19 2.7.4 Others.................................................................................................................20 Chapter 3 Progress of the Works in Madagascar ...............................................................21 3.1 Overview ...................................................................................................................21 3.2 First-stage Works in Madagascar..............................................................................21 3.3 Second-stage Works in Madagascar.........................................................................24 3.4 Third-stage Works in Madagascar.............................................................................26 3.5 Fourth-stage Works in Madagascar: Part 1...............................................................28 3.6 Fourth-stage Works in Madagascar: Part 2...............................................................30 3.7 Fifth-stage Works in Madagascar..............................................................................31 3.8 Sixth-stage Works in Madagasca ..............................................................................34 3.9 Seventh-stage Works in Madagascar........................................................................38 i 3.10 Eighth-stage Works in Madagascar: Part 1 .............................................................41 3.11 Eighth-stage Works in Madagascar: Part 2 .............................................................43 Chapter 4 Basic information on the mineral resources and mining industry .......................45 4.1 The State’s policy on mining industry ........................................................................45 4.2 Project of the World Bank..........................................................................................46 4.3. Natural resources.....................................................................................................49 4.4. Projects of the exploitation of resources...................................................................55 4.5 The laws and regulations relative to the mining industry...........................................58 4.5.1 Revised points of the mining code......................................................................58 4.5.2 Mining license.....................................................................................................59 4.5.3 The Law on the Large-Scale Mining Investments (LGIM)...................................61 4.6 Problems ...................................................................................................................62 4.6.1 Problems in the development of mining industry ................................................62 4.6.2 Problem of environment......................................................................................62 Chapter 5 Geological survey...............................................................................................64 5.1 Summary...................................................................................................................64 5.2 Survey method ..........................................................................................................64 5.2.1 Geologic survey..................................................................................................64 5.2.2 Creation of the geological map ...........................................................................67 5.2.3 Laboratory test....................................................................................................67 5.3 Outline of the information on geology and mineral resources in the zone of geological survey .............................................................................................................................71 5.4 Geology of the study zone.........................................................................................72 5.5 Geological structure of the study zone .....................................................................83 5.6 Mineral resources in the study zone..........................................................................87 Chapter 6 Geochemical survey...........................................................................................91 6.1 Overview ...................................................................................................................91 6.2 Method of the survey.................................................................................................91 6.2.1 Selection of sampling site ...................................................................................91 6.2.2 Collection of samples..........................................................................................91 6.2.3 Chemical analysis...............................................................................................91 6.2.4 Statistical analysis...............................................................................................92 6.2.5 Creation of geochemical maps ...........................................................................94 6.2.6 Creation of cumulative frequency diagrams and histograms ..............................94 6.2.7 Consideration of geochemical features...............................................................94 6.2.8 Extraction of geochemical anomalies .................................................................95 6.3 Statistical analysis of assay results ...........................................................................95 6.3.1 Calculation of basic statistics..............................................................................95 6.3.2 Multi variant statistical analysis...........................................................................95 6.4 Geochemical features in the survey area................................................................101 ii 6.5 Geochemical anomalies in the survey area.............................................................109 6.5.1 Extraction method of geochemical anomalies ..................................................109 6.5.2 Distribution of geochemical