Research List

No.	Researcher	Title	Abstract	Year
1821	Mya Moe Khaing	PETROGENESIS OF METASEDIMENTARY ROCKS IN BILIN AND ITS ENVIEONS, BILIN TOWNSHIP, MON STATE	According to field and petrological characters, the metasedimentary rocks of the study area consist of slate, phyllite intercalated with quartz mica schist and quartzite. The mineral assemblages of the Bilin area had been subjected to two types of metamorphism; regional metamorphism reinforced by local contact metamorphism. Regional metamorphism of pelitic rocks gave rise to the formation of slate and phyllite intercalated quartz mica schist. Generally, the grade of metamorphism increases gradually towards the west. The regional metamorphism was superimposed by contact metamorphism by the emplacement of igneous intrusion especially biotite granite and diorite intrusion. Furthermore, the presences of spotted phyllites are the indication of the existence of contact metamorphism. The grain size becomes coarser with increasing in grade of metamorphism such as in slate, phyllite and schist. According to the mineral assemblages, the regional metamorphism of the study area had taken place within the �Greenschist facies�. Greenschist facies results from low temperature and pressure condition and the formation of some minerals indicate a temperature of approximately 250?C to 400?C and depth of about 2kb to 4kb. The metamorphic rocks of the study area belong to the Mergui Group. The metamorphism of the study area probably took place Post Carboniferous in age.	2021
1822	Thidar Win	SERPENTINIZATION IN THE MWETAUNG OPHIOLITE, TIDDIM TOWNSHIP, CHIN STATE	The study area is bounded by the latitude 23� 22' to 23� 30' N and the longitude 94� 00' to 94� 03' E, in one inch topographic map 84-I/3. It is located about 17 miles (27 km) NW of Kalemyo, Sagaing Region and Tiddim Township of Northern Chin Hills. In this area, Mwetaung Hill lies prominently on the eastern flank of the northern Chin Hills. It conspicuosly high hill protruding from the alluvial plain is wholly built up of ultramafic rocks tectonically bounded by the highly folded Pane Chaung Group to the west. The most ultramafic rocks of the study area are completely serpentinized. Serpentinization is a widespread process in ophiolitic mantle. In study area serpentinites or serpentinized ultramafic rocks are classified into three typesof serpentinites: massive serpentinite, sheared serpentinite and cross-fibre serpentinite, based on their physical appearances and microscopic study.into type 1, type 5 and type 8. Degree of serpentinization for the study area is early to advanced stage. Serpentinite textures such as mesh texture, ribbon texture and bladed mat are found. Magnetite is present in minor amounts in all types of the rocks. Their nature and textures are important for the determination of the degree of serpentinization. Serpentinites derived from ophiolite peridotites is probably equilibrated at low temperature below about 500�C. The time of serpentinization in the study area is Early Cretaceous because it is related to the time of emplacement of the ultramafic body.	2021
1823	Aung Myo Zaw	GEOPHYSICAL APPORACH TO THE DETERMINATION OF LOCAL SITE EFFECT IN DAGON TWONSHIP, YANGOM REGION FOR SEISMIC HAZARD	Determination of local Site effect had carried out at 43 sites in Dagon Township, Yangon, Myanmar. Yangon area is located in moderate to high seismic prone area and high damage can be expected because the soil conditions in the city vary from alluvial soil to soft rock. The potential damage effects can be estimated on the basic of local soil effects. To determine the local soil conditions and its effects, analysis of the ratio of horizontal to vertical (H/V) spectra of microtremor was performed. The microtremor measurements were conducted by the SMAR-6A3P seismograph with LS-8800 data logger and GPS time composition at 200 Hz sampling rate. Finally, sediment thickness, shear wave velocity structures and potential soil amplification were determined. The potential frequency is ranging from 1.25Hz to 2.65Hz and the amplitude is ranging from 0.2 to 3.8. The potential soil thickness is ranging from 52 m to 106 m and average shear wave velocity of upper 30m depth, Vs 30 , is ranging from 200 m-1 to 540 m-1 in general. Microtremors analysis show that southeastern and northwestern part of the Dagon Township is covered by thick and soft sediments (low frequency and high peak amplitude) while the central part of the Dagon Township is generally covered by thin and soft sediments (high frequency and high peak amplitude). These results can be used for urban seismic hazard assessments and risk mitigations in future.	2021
1824	Paing Soe	HEAVY MINERALS ANALYSIS OF THE SHWEZETAW-PADAN COAL MINE AREA, MAGWAY REGION	The Late Eocene coal-bearing Yaw Formation and Early Oligocene Shwezetaw Formation are exposed in the western part of the Salin sub-basin, Magway Region, records part of the forearc basin. At least twelve heavy mineral species are identified from the sandstones of Yaw and Shwezetaw formations. High maturity index of the middle part of the Shwezetaw Formation may indicate that these heavy minerals came from a long way or there was abundance of stable minerals in source area. Well-rounded grains of zircon, garnet, tourmaline, and rutile are derived from the pre-existing metasedimentary rocks and euhedral crystals were probably derived from acid igneous rocks. Rutile is widespread accessory mineral in metamorphic rocks and it is less significant in igneous rocks. Kyanite, sillimanite, staurolite and garnet were derived from high grade metamorphic rocks. The association of augite and magnetite may indicate basic igneous source. The most sediment in the Shwezetaw-Padan coal mine area were probably derived from recycled orogen including foreland uplift or subduction complex (Western Ranges), Central Igneous Line and mixed magmatic arc (Salingyi Uplift).	2021
1825	Aung Ye Ko	GEOCHEMICAL CHARACTERISTICS OF GOLD MINERALIZATION AT TAUNG NI GOLD PROSPECT, MADAYA TOWNSHIP, MANDALAY REGION, MYANMAR	Taung Ni gold prospect area is situated in Madaya Township, Mandalay Region, Myanmar. The host rocks, quartzite and phyllite were metamorphosed under greenschist facies conditions. Gold mineralization is mainly hosted by quartzite of Chaungmagyi Group which is deformed, jointed, brecciated and interbedded with phyllite. In its area, gold-bearing sulphide quartz veins and auriferous deformed/ remobilized quartz veins are found. In these two types of veins systems, Pearson statistical analyses confirm a significant correlation between SiO2 and other major oxides as most strongly negative correlation indicates that the both quartz veins bearing gold are of hydrothermal origin. The Co and Ni contents in pyrite show Co>Ni and the average ratio for Co/Ni is 2.698. The gold fineness shows two ranges: (1) high fineness (826.2 - 881.3) and (2) low fineness (771 - 795). In sulphide bearing quartz vein (Early Stage), homogenization temperature can be measured and it ranges from 340�C to 403�C and melting temperature ranging from -1.7 to -2.0, salinity NaCl equiv. wt.% range from 3.01 to 3.53. In deformed quartz vein (Later Stage), the range of melting temperature is from -1.3 �C to -1.6 �C and salinity NaCl equiv. wt. % is from 2.31 to 2.83. Homogenization temperature is 320�C to 396�C.	2021
1826	Myo Min Tun	ZEOLITES IN AMYGDALOIDAL BASALTS FROM TONNGE AREA, TIGYAING TOWNSHIP, SAGAING REGION, MYANMAR	Tonnge basaltic field is situated 100 km north of Mandalay in Tigyaing Township, Sagaing Region of Myanmar. It is regarded as an intraplate Quaternary basaltic field and located to the north of wellknown Singu-Kabwet basaltic lava field of Central Myanmar. In this study, zeolites filling in the amygdales of the olivine basalts from Tonnge area have been reported and studied by field observation, transmitted light microscopy and X-ray diffraction analysis. The zeolite group minerals are identified as natrolite, phillipsite, mordenite, laumontite, analcime, and epistilbite. Non-zeolite mineral phases in the amygdaloidal infillings are recognized as smectite, quartz (as amorphous silica), and carbonates. Zeolites and associated minerals are interpreted to be developed possibly as a consequence of late-stage hydrothermal circulation. Moderately to weakly alkaline hydrothermal solutions are responsible for the formation of zeolites in the basalts. Due to the occurrence of different zeolite minerals, it can be deduced that a change in fluid composition occurred as temperature dropped during their formation.	2021
1827	Zar Ni Swe	ECONOMIC GEOLOGY OF THE HOPANG AREA, �WA� SELFADMINISTERED DIVISION IN THE NORTHERN SHAN STATE, MYANMAR	The investigated area is situated in Hopang Township, �Wa� Self-Administered Division in northern Shan State, Myanmar. This area is mainly composed of various lithologic units ranging in age from Precambrian to Mesozoic. Precambrian units are mostly metasedimentary rocks and Paleozoic to Mesozoic units are carbonate and clastic sedimentary rocks. A number of known lead-zinc mines within the Shan Plateau lie in a broad NE-SW orientated belt extending from the Shan Scarp in the west up to the Chinese border in the east. Hopang area is economically important because the sizeable Pb-Zn-Cu mineral deposits are well developed at Hpalin mine. The carbonate-hosted PbZn-Cu veins are observed as fissure filling and cavity filling types occurred along the northeastsouthwest striking fault. The major ore minerals such as pyrite, chalcopyrite, sphalerite and galena are associated with the lesser amount of azurite, malachite, chalcocite, bornite, arsenopyrite, chrysocolla and laurionite. Limestone, dolomite and porphyritic biotite granite are mostly abundant and they are used for industrial materials, construction materials and decorative stone.	2021
1828	Tun Tun Min	GEOCHEMICAL INVESTIGATION OF CHROMITITES IN ULTRAMAFIC ROCKS OF TAUNG-PI-LA AREA, KALAY TOWNSHIP, SAGAING REGION	Taung-Pi-La Area is situated about 3.84 miles (6.22 kilometers) west of Kalemyo, Sagaing Region. The principal rock types of the Taung-Pi-La Area include harzburgite, dunite and serpentinites which are formed during Late Jurassic to Early Cretaceous. Exposures of pyroxenite were observed in the research area. Seven chromitites occurred in the Taung-Pi-La ultramafic rocks. Chromitite are massive, nodular and disseminate types displaying pull-apart, cataclastic, net and clot textures. Among the chromite grains, the interstitital silicate of olivine, orthopyroxene and serpentine are found. X-ray diffraction (XRD) of chromitites of the Taung-Pi-La Area shows magnesiochromite (MgCr2O4) type. Chromitite composition is characterized by Cr2O3 ranging from 27.10 to 59.43 wt.%, Al2O3 from 7.36 to 26.60 wt.%, MgO 8.27 to 26.80 wt.%, and FeO ranges from 4.37 to 14.66 wt.%. The maximum Fe2O3 content is 2.45 wt% and TiO2 is always below 0.18 wt%, as typical for podiform chromitites and ophiolitic chromitites. The high-Cr chromitites are typically hosted in highly depleted harzburgites. In the TiO2 vs. Cr2O3, Mg#[Mg/(Mg+Fe2+)] versus Cr#[Cr/(Cr+Al)] and TiO2 vs. Fe2+/Mg diagrams, most of the chromitites belongs to the podiform chromitites. The trivalent ion plot (Cr-Al-Fe3+) and Al2O3 vs Cr2O3 of chromitite compositions show that chromitites are derived from mantle source. According to the TiO2and Al2O3 diagram, chromitites of the Taung-Pi-La Area are formed in the supra-subduction zone (SSZ).	2021
1829	Kyaw Khaing	GEOCHEMICAL ANALYSIS OF SANDSTONE OF PAUNGGYI FORMATION IN THE AKYIBAN AREA, TILIN TOWNSHIP, MAGWAY REGION	The present study mainly focuses on the Geochemistry of Clastic sedimentary rock mainly on the sandstones of Paleocene. Paunggyi Formation exposed in the northernmost part of the Minbu Basin, Tilin, Magway region. The study attempts to constrain their source rocks, palaeo-weathering and tectonic setting of the provenance. The study area mainly consists of Tertiary Clastic Sedimentary rocks. Selected samples from the research area were analyzed using X-ray Fluoresence (XRF) for major oxides and some trace elements to know the chemical composition of sandstone and to classify the sandstone. Lithologically, the Paunggyi Formation is mainly composed of buff to grey, medium bedded sandstone, compact to friable thick bedded to massive gritty sandstone and conglomerate. By the XRF analysis, sandstones of the Paunggyi Formation fell within the litharenite zone. The analysis also points out that most of the sandstones are Fe-sand composition. By the discriminant diagram the Paunggyi sandstones samples indicating the mafic igneous and intermediate igneous provenances. Moreover, sandstones of the Paunggyi Formation were deposited in the active continental margin shifted to the downward of the oceanic island arc field. Additionally, the average CIA and CIW values of Paunggyi sandstones indicate very low degree of chemical weathering might have taken place in the source area.	2021
1830	May Thu Aung	PETROLOGY AND PETROGENESIS OF METAMORPHIC ROCKS IN ZA YAT KWIN AREA, THABEIKKYIN TOWNSHIP, MANDALAY REGION	The study area is situated in southern part of Thabeikkyin Township, Mandalay Regions. The study area is located in UTM map No 2296 01. The study area falls within the Mogok Metamorphic Belt, mainly composed of metamorphic rocks and igneous rock. The study area comprises gneiss, marble and garnet � diopside - calc � silicate rock. In gneiss unit includes biotite - gneiss and marble units includes graphite marble, phlogopite � diopside marble and grossularite - diopside marble. Garnet � diopside - calc � silicate rock is composed of calcite, quartz, feldspar (orthoclase, plagioclase), diopside, sphene, garnet, zircon and opaque minerals. Most of the calcite twin bands are giving tapering twin and its showing first order to upper higher order. These calcite twins are gradationally change small to large twins and change the colour because of due to the effect of deformation. According to the mineral assemblages, regional metamorphism (amphibolites facies) is recognized in the study area. The grade of the metamorphism in the study area is medium to high grade metamorphism.	2021

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