ASEAN Minerals Information

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ASEAN Minerals Information

Geology and Resources of Khanong Deposit Regional Geology

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Abstract

The Sepon project area is situated near the eastern margin of the intra-continental Khorat Basin and on the western flank of the Anamite Range fold belt, as shown in Figure 1. It lies within the Troungson geological region covering a broad spectrum of rocks ranging in age from Upper Proterozoic to Jurassic. Further to the southeast in Vietnam lies the Archean basement of the Khontoum Massif. Error! Reference source not found. Shows the Geology of the Sepon mineral district.

The regional geology of the project area is dominated by an Upper Palaeozoic sedimentary belt of arkosic and feldspathic sandstone, variably calcareous and carbonaceous siltstone, shale and limestone which is variably dolomitized and locally marbleized. There are lesser volcanic rocks, typically comprised of agglomerate, conglomerate, tuffaceous sandstone, and rare coherent volcanics. The belt is cut by plutonic to sub-volcanic bodies of granite, monzodiorite, granodiorite, quartz porphyry, rhyodacite porphyry (RDP) and andesite porphyry. The intrusive rocks are preferentially emplaced along either E- or NW- trending well­ developed structures.

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Environmental Friendly Quarry Design for Khammouane Cement Project

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Introduction

Khammouane Cement Co., Ltd (KCL) has conducted business in tune of sustainable development. KCL encourages innovation in products, services, work processes, and business models to create higher value for the customer in Lao PDR. KCL was established in 2014 as a Joint Venture Company to produce cement, main building material for infrastructure projects that contributes to the progress of the country.

KCL's business policy has always emphasized our responsibility to our stakeholders and has helped KCL to propel business growth and acceptance from all stakeholders. KCL business policy are aligned with internationally recognized principles of Corporate Governance. In addition to operational excellence, KCL carries out its social and environmental activities in accordance with the guidelines of the World Business Council for Sustainable Development (WBCSD)

The environmental is the utmost important issue in business operation due to the concerns raised by the society-locally, nationally and internationally. In order to conduct business successfully, KCL has established an environmental management system be efficiently manage environmental operation, covering all impacts caused by production processes, toward sustainable environmental conservation. This paper is focus only quarry design for Environmental friendly Quarry for Khammouane Cement Project.

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Current Status of Potash Development in Thong Mang, Vientiane Basin, Lao PDR

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I. INTRODUCTION

Thong Mang Potash Mine is the first mining area which Sino-Lao has selected to operate as pilot project.

Thong Mang potash mine with a mining area of 41.25 square Kilometres is Located at Ban Thong Mang, Xaythani district, Vientiane Capital, Lao PDR. (see Figure 1. Location of Sino-Lao Potash Mining Ltd.'s Mining Areas)

The initial mining area is 1.0 square kilometers. The project is pilot production installation and the products are potassium chloride for industrial use and by-product of magnesium chloride. The production scale of the product is fixed as 50,000 t/y of KCL, and 10,000 t/y of by-product MgCL2.6H20.

The objective of this pilot project is to obtain the optimum mining and processing technical parameters and to accumulate experience and make conditions for the subsequent large scale development and construction. The construction and operation of this project will verify the reliability and advanced nature of the mining and processing technologies selected for the potash resources in Vientiane plain.

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Chanthaburi - Trat Corundum Deposits, Eastern Thailand

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Abstract

The corundum deposits of Thailand are found in the northern, northeastern, eastern and west-central parts of the country. In the eastern part, rubies and sapphires are found at many localities in Chanthaburi and Trat provinces. Most of corundums are found in alluvial, colluviums and residual soil associated with alkaline basalt. Chanthaburi - Trat Corundum deposits can be classified by varieties of corundum into four geographical zones. The first zone is located in the western area of Chanthaburi province. The second zone is situated between Chanthaburi and Trat provinces. The Third zone is in Bo Rai District, Trat Province and the fourth zone is located in the eastern area of Pong Nam Ron District, Chanthaburi province.

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Seasonal Variation of the Stable Isotope Fingerprints in daily precipitations and Mekong River

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Abstract

Stable isotopes are a very powerful means in hydrological study of water cycle. In contrast, lack of isotope reference database in SE Asia, only long-term monthly database of IAEA's Global Network of Isotopes in Precipitation (GNIP), make inapplicable interpretation on very dynamic, seasonal control of local hydrological systems. In Thailand, high frequency stable isotope database in water is on-going developed by advantage of using advanced technology instruments base on laser absorption spectroscopy. In this study, 24 months sampling of daily precipitation in 2 rain stations (in Nakorn Panom and Nang Khai) and weekly run-off in Mekong River and the distributaries were collected for δ2H/δ18O measurement during 2012-2015.

The results provide new perspective of temporal variation and seasonal offset of stable isotopes in the local precipitation near Thailand and Lao PDR. boundaries that can be compared to the local meteoric water line (LMWL) of Bangkok (GNIP 4845500) and Luang Phrabang (GNIP 489300).

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