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_223rd edition, _aT-10 M.Sc. |
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| 100 |
_aAung Thura. _963315 |
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| 245 |
_aGeology and geochemical investigation of lead mineralization,north of Heho, Kalaw township, Shan State (South) / _cAung Thura. |
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| 264 |
_aYangon; _bUniversity of Yangon, _c2015. |
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| 300 |
_a(xii), 104 pages: _bfigures, tables, _c30 cm. |
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| 500 | _aInclueds list of figures, list of tables, summary, conclusion, appendices | ||
| 502 |
_aABSTRACT ___ The study area is located in the Kalaw Township, south-eastern part of Pindaya Range, southern part of Bawsaing Range, eastern part of Aungban and north of Heho, especially near the Heho, Shan State (South). It is situated between Latitude N 20 43' 00" to 20 49' 00" and Longitude E 96 47' 00" to 96 50' 14" , covering one-inch topographic map sheep 93D/13 and 93D/14. The study area, it total cover is about 21 square miles (53.76 sq. km). The structure of Bawsaing Range is highly complicated by faults i.e. overturning thrusting and normal faulting. It is a double plunging anticline, plunging south as well as north. The study area is moderately elevated, hilly terrian to flat plain region. The study area is trending north-south in direction and mainly upper Paleozonic rocks are exposed. A wide range of lithology and age ranging from Upper Cambrian to Ordovician, with local presence of clastic sediments. The mineralization is characterized by host rock alteration. There are various types of alterations near the copper ore mine of Lathar-Taung area. They are; (1) Dolomitisation, (2) Silicification, (3) Sericitisation, (4) Kaolinisation and (5) Limonitisation. Mineralization hostedin carbonate sedimentary rocks at the study area. Carbonate hosted ore consist largely of galena associated with copper, pyrite,chalcopyrite and limonite were formed the major ore minerals. Galena mineralization is strongly associated with silt-patches limestone and ooidsparite limestone by thin-section.Galena is recongnized by the presence of traingular pits, along the cleavage direction and which found secondary origin in the microscope. Analysis rock samples by AAS methods, silver content in galena is relatively high and good positive correlation (+0.382) which is epithermal deposit character. At the study area, ores are found as recrystallization, replacement and fracture filling textures. So this deposit type is stratabound deposit, fracture filling deposit (epigenetic system). Copper sulphides are found as vein type within silicified zone. Copper carbonates are formed accessary of galena ore in the study area, where show that ore mineralization result of hydrothermal activity. _bM.Sc. _cUniversity of Yangon, _d2015 |
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| 504 | _aIncludes references. | ||
| 505 |
_aCONTENTS _
ABSTRACT
ACKNOWLEDGEMENTS
CONTENTS
LIST OF FIGURES
LIST OF TABLES
CHAPTER-I : INTRODUCTION
1.1 Location, Size and Accessibility
1.2 Topography and Vegetation
1.3 Drainage Pattern
1.4 Climate
1.5 Previous Work
1.6 Purpose of Work
1.7 Methods of Investigation
1.7.1 Field Methods
1.7.2 Laboratory Methods
CHAPTER-II : REGIONAL GEOLOGIC SETTING
2.1 Tectonic Setting of the Study Area
2.2 Regional Geologic Setting of the Bawsaing Range
2.3 Stratigraphy of the Bawsaing Range
2.4 Geologic Setting of the Study Area
2.5 Stratigraphy of the Study Area
2.6 Structure of the Study Area
2.6.1 Faults
2.6.2 Folds
2.6.3 Bedding
2.6.4 Joints
CHAPTER-III : GEOLOGY OF THE STUDY AREA
3.1 General Statement
3.2 Rock Sequence of the Study Area
3.2.1 Molohein Group
3.2.1.1 Myet-Ye Formation
3.2.2 Pindaya Group
3.2.2.1 Lokepyin Formation
3.2.2.2 Wunbye Formation
3.3 Geological History
CHAPTER-IV : PETROLOGICAL STUDY
4.1 Introduction
4.2 Dolomitic Limestone
4.3 Silicified Dolomitic Limestone
4.4 Oolitic Limestone
4.5 Sandsstone
4.6 Mudstone
4.7 Depositonal Environment
CHAPTER-V : GEOCHEMICAL INVESTIGATION OF STUDY AREA
5.1 General Statement
5.2 Interpretation of Geochemical Data
5.2.1 Arsenic (As)
5.2.2 Silver (Ag)
5.2.3 Copper (Cu)
5.2.4 Lead (Pb)
5.2.5 Zinc (Zn)
5.2.6 Iron (Fe) \
5.3 Correlation Coefficients
5.4 Cluster Analysis
5.5 Regression Analysis
CHAPTER-VI : MINERALIZATION AND ALTERATION
6.1 Introduction
6.2 Host Rocks
6.3 Ore Minerals
6.3.1 Galena
6.3.2 Copper
6.3.3 Pyrite
6.3.4 Chalcopyrite
6.4 Ore Textures and Ore Deposits
6.5 Paragenesis Sequence
6.6 Alteration
6.6.1 Kaolinisation
6.6.2 Limonitisation
6.6.3 Dolomitisation
6.6.4 Silicification
6.6.5 Sericitisation
6.7 Copper Old Mine Adit of Lathar-Taung
6.8 Small Local Lead Mine of Taungbat-Taung
CHAPTER-VII SUMMARY AND CONCLUSIONS
REFERENCES
APPENDICES _rAung Thura. _tGeology and geochemical investigation of lead mineralization,north of Heho, Kalaw township, Shan State (South) / |
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_aGeology _xLead Mineralization. _zHeho _zKalaw Township _zShan State (South) _963316 |
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_2ddc _cREF |
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_c46187 _d46187 |
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