Pada saat ini PT. Berkat Esa Mining merencanakan akan melakukan investasi proyek di bidang pertambangan batu mangan yang ditargetkan beroperasi pada tahun 2018 ini. Perhitungan biaya investasi adalah meliputi  dana yang dikeluarkan oleh  PT. Berkat Esa Mining sebagai akibat realisasi kegiatan dalam biaya konstruksi infrastruktur baru, pembelian atau pengadaan peralatan, dan lain-lain sampai kegiatan proyek penambangan batu mangan tersebut siap dilakukan. Kriteria penilaian finansial merupakan alat bantu bagi manajemen untuk membandingkan dan memilih alternatif investasi yang akan dilakukan. Ada beberapa macam kriteria penilaian finansial yang dianggap baku, yang mana diantaranya memperhitungkan konsep ekuivalen seperti Net Present Value (NPV), Internal Rate of Return (IRR). Sedangkan kriteria penilaian yang tidak memperhitungkan konsep ekuivalen yang digunakan adalah metode periode pengembalian (Payback Period). Berdasarkan analisis aliran kas dan analisis sensitifitas yang telah dilakukan, besarnya nilai IRR yang lebih besar dari discounted factor yang menunjukkan bahwa kegiatan penambangan ini dapat mendapatkan keuntungan sebesar 104,35 %  dari margin biaya keseluruhan kegiatan penambangan. Selain itu, nilai Payback period sebesar 1 tahun 2 bulan juga menunjukkan bahwa kegiatan penambangan ini, modalnya akan kembali pada tahun kedua kegiatan penambangan.Â
Kegiatan penambangan secara umum dapat membawa dampak positif dan negatif pada aspek sosial ekonomi masyarakat setempat, terutama di daerah yang terkena dampak di mana kegiatan penambangan terjadi. Penelitian ini bertujuan untuk mengetahui jumlah dampak ekonomi dari penambangan batu kapur yang dilakukan oleh perusahaan asing Cina yang berlokasi di desa Maruni, Distrik Manokwari Selatan, Wilayah Manokwari, Papua Barat, pada masyarakat setempat. Juga merupakan subjek yang menarik, dampak sosial dari penambangan batu kapur di daerah tersebut harus diperhatikan, karena masyarakat setempat melakukan kegiatan penambangan sebagai bahan utama untuk semen yang diproduksi oleh perusahaan. Metode penelitian yang digunakan oleh peneliti adalah penelitian survei purposive sampling dengan sampel yang dianggap sebagai perwakilan dari masing-masing desa yang terletak di daerah penambangan batu kapur di desa Maruni - Kabupaten Manokwari Selatan. Hasil penelitian disajikan dalam bentuk deskriptif kualitatif. Variabel terukur meliputi pendapatan lokal sebelum dan sesudah kehadiran perusahaan tambang batu kapur di daerah desa Maruni - Kabupaten Manokwari Selatan, tingkat partisipasi tenaga kerja, analisis dampak ekonomi lokal dan bagaimana masyarakat di daerah desa Maruni - Kabupaten Manokwari Selatan memandang situasi.
The application of the Arc SDM program on remote sensing for gold minerals ini an area can be implemented by proving the compatibility of the result of the interpretation of satellite image with conditions in the study area. Remote sensing method is able to detect potential locations with mineral deposits occurrence that has certain characteristics that can affect a certain aspect of exploration activities, namely time efficiency. Remote sensing is an art and technique for obtaining information on an object, area or data analysis phenomenon acquired with a device without having to have direct contact with the object, area or phenomenon studied. In remote sensing, exploration activities play an important role in terms of isolating the potential of seed sediment based on remote sensing models. The use of remote sensing method can reduce exploration costs because it only focuses on detailed surface area of research that have more potential for the existence of minerals. By using this remote sensing method, we can determine specific area to explore, researching in detail in the shortest time possible. Mapping method for the mineralization geological exploration activities in the intended gold-bearing areas can utilize remote sensing data in the form of Landsat ETM satellite images. This method is expected to be able to produce accurate, valid and up-to-date data that makes it possible to create geological interpretation maps in a relatively short time (Rapid Mapping).
The measureable magnetic field intensity variation is then interpreted in the form of the distribution of the magnetic material below the surface, then used as the basis for the prediction of possible geological conditions observed. The iron ore deposits in the survei area are generally interpreted as a form of sediment that fills the rock cavities, especially in limestone cavities. This occurs due to the geological structure that gives space for the placement of mineralization of ore deposits in the side rock zone. The value of this magnetic anomaly is located in the west, the eastern, and also in the north part. Keywords: Geomagnet Method, Iron Ore, Magnetic Properties, Magnetic Value, Magnetic Anomaly Value.
Study is learning scientific study. A Pareto chart is a diagram consisting of a bar graph and a line graph that illustrates a comparison of each type of problem data with its overall causes. Gross Regional Domestic Product (PDRB) is the total gross added value arising from all economic sectors in a particular area. Which is usually a Pareto Diagram made to describe the PDRB of a particular area which aims to help make regional policies or planning, evaluate development results, provide information that can describe the regional economic performance. In terms of the topic of this pareto diagram study, the author takes the exposure of rock mining in Manokwari Regency. The mining of these rocks is a source of income in the Manokwari Regency area which can support the economy in the Manokwari Regency area. Where mining activity or mining activity is a process or activity of taking material that can be extracted from the earth to the utilization of minerals, both for the benefit of the company, the surrounding community, as well as local and central government.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.