Hasil Pencarian  ::  Simpan CSV :: Kembali

Hasil Pencarian

Ditemukan 3 dokumen yang sesuai dengan query
cover
Pradianti Gavrilia
"ABSTRAK
Kegiatan pertambangan rakyat yang disebut oleh masyarakat Bangka dengan Tambang Inkonvensional (TI), semakin marak hampir mencakup ke segala aspek ekosistem alam baik darat maupun laut yang mana tidak memiliki izin dalam proses kegiatan penambangan. Dengan semakin maraknya kegiatan pertambangan TI dikabupaten Bangka Selatan maka Pemerintah Daerah Kabupaten Bangka Selatan membentuk Tim Terpadu PETI dalam rangka upaya penanggulangan masalah penertiban serta penghentian segala bentuk pertambangan tanpa izin. Pembentukan Tim Terpadu PETI ini berdasarkan Keputusan Bupati Bangka Selatan No.188.45/67A/SAT POL PP/2014 tentang Pembentukan Tim Terpadu Penanggulangan Pertambangan tanpa Izin yang mana mengacu pada Perda No 4 Tahun 2011 Tentang Pertambangan Mineral.
Fokus penelitian ini adalah pada implementasi kebijakan tersebut. Penelitian ini menggunakan metode kualitatif. Hasil penelitian menunjukkan bahwa implementasi kebijakan penanganan tambang timah inkonvensional (TI) mengalami berbagai permasalahan berupa keterbatasan Keterkaitan standar dan tujuan, sumberdaya, komunikasi antar organisasi dan aktivitas implementasi, karakteristik badan pelaksana, kondisi sosial, ekonomi dan politik serta disposisi pelaksana sangat mempengaruhi implementasi kebijakan. Ketidakjelasan dalam pelaksanaan standar dan tujuan, masih kurangnya dukungan sumberdaya kebijakan baik itu kurangnya sumberdaya manusia, sumberdaya dana, sumberdaya fasilitas dan sumberdaya informasi, serta aspek diluar organisasi seperti kondisi sosial, ekonomi memberikan hambatan dalam proses pelaksanaan implementasi kebijakan dan pencapaian keluaran implementasi kebijakan.

ABSTRACT
Artisanal mining activities called by the Islands community with Unconventional Mine (TI), the more bloom almost cover all aspects of natural ecosystems to both land and sea which are not authorized in the process of mining activities. With the rise of mining activities, the IT dikabupaten South Bangka Regency Government of South Bangka Integrated Team illegal formed in an effort to curb the problem prevention and cessation of all forms of mining without permission. Integrated Team illegal formation is based on Decree of the Regent South Bangka No.188.45 / 67A / SAT POL PP / 2014 on the Establishment of an Integrated Response Team Mining without a license which refers to Bylaw No. 4 of 2011 on Mineral.
This research focus is on the implementation of the policy. This study uses a qualitative method. The results showed that the implementation of policies to deal with unconventional tin mine (TI) experienced a variety of problems such as limitations of standard linkage and objectives, resources, communication between the organization and implementation activities, the implementing body characteristics, social, economic and political as well as the disposition executive influence policy implementation. The lack of clarity in the implementation of standards and goals, still a lack of resources support good policies that lack of human resources, financial resources, resources, facilities and information resources, as well as aspects of outside organizations such as social conditions, economic provide obstacles in the implementation process of policy implementation and the attainment of policy implementation"
2015
T43898
UI - Tesis Membership  Universitas Indonesia Library
cover
Rifqi Aditya
"ABSTRAK
Pulau Bangka termasuk sebagai salah satu Tin Islands, umumnya berupa endapan timah sekunder. Bagaimanapun endapan timah sekunder terus berkurang, sehingga diperlukan eksplorasi lebih lanjut terkait endapan timah primer. Tujuan dari penelitian ini adalah untuk membuat model mineralisasi endapan timah primer di Pulau Bangka. Metode penelitian yang digunakan antara lain analisis petrografi, mineragrafi, XRD (X-Ray Diffraction), dan XRF (X-Ray Fluorescence).
Sampel batuan yang diuji terdiri dari granit, meta-sandstone, sandstone dengan beberapa batuan yang sudah mengalami alterasi dengan jenis alterasi seperti turmalinisasi, silisifikasi, greisen, kaolinisasi, dan oksidasi. Hasil analisis petrografi dan mineragrafi menunjukkan keberadaan mineral yang mendukung keterdapatan endapan timah primer seperti kasiterit, turmalin, topas, serisit, pirit dan sfalerit. Hasil analisis XRF menunjukkan data terkait nilai kadar unsur timah (Sn) yang dapat diklasifikasikan menjadi dua kelas yaitu very high grade (> 800 ppm), dan low grade (100-200 ppm). Analisis XRD perlu dilakukan untuk mengetahui tipe dan intensitas alterasi yang terjadi di daerah penelitian. Hasil yang diharapkan dari penelitian ini adalah hasil analisis dari tiap metode yang dilakukan memberikan informasi yang mendukung terkait proses mineralisasi timah primer di Pulau Bangka.

ABSTRACT
Bangka Island is important tin producer in Indonesia, mostly from the secondary tin deposits. However the secondary tin deposit is depleting, causing further exploration shifted to the primary tin mineral. The purpose of this study is to make a mineralisation model of primary tin deposit in Bangka Island. Methods that implemented in this study are petrography analysis, mineragraphy analysis, XRD (X-Ray Diffraction), and XRF (X-Ray Fluorescence) analysis. The studied rock samples that consisted of granite, meta-sandstone, and sandstone. Some of the rocks have experienced alterations such as tourmalinisation, silicification, greisen, kaolinisation, and oxidation. The petrography and mineragraphy analysis show the presence of minerals that indicate the primary tin deposits, such as cassiterite, tourmalin, topaz, sericite, pyrite and sphalerite. XRF analysis shows data about the value of Sn elements so that they can be classified into two classes, very high grade (> 800 ppm), and low grade (100-200 ppm). XRD analysis necessary to do to determine the type and intensity of alterations that occur in the study area. The results of each analyses will provide supporting information regarding primary tin mineralisation process in Bangka Island.
"
2019
S-Pdf
UI - Skripsi Membership  Universitas Indonesia Library
cover
Disa Kurnia Dewi
"Aktivitas pertambangan timah sudah dilakukan sejak tahun 1976 oleh PT Timah Tbk sehingga semakin sedikit sumber timah yang diketahui. Penelitian ini bertujuan untuk menentukan karakteristik mineralisasi timah primer di Parit Tiga, Kabupaten Bangka Barat, Kepulauan Bangka Belitung. Metode yang digunakan pada penelitian ini, yaitu XRD, XRF, Petrografi, dan Mineragrafi. Berdasarkan hasil analisis yang telah dilakukan, daerah penelitian terdiri atas dua satuan geomorfologi yang meliputi Satuan Perbukitan Vulkanik dan Satuan Tailing Antropogenik. Berdasarkan hasil interpretasi persebaran litologi di daerah penelitian, maka daerah penelitian memiliki dua satuan batuan, antara lain Satuan Granit Klabat Berbutir Halus dan Satuan Granit Klabat Berbutir Sedang-Kasar. Lalu, struktur yang berkembang di daerah penelitian adalah Sesar Mendatar Mengiri Turun dan sheeted vein/veinlet. Kemudian, alterasi yang berkembang di daerah penelitian terdiri dari empat fasies, yaitu Alterasi Kuarsa + Turmalin (104.2 ppm), Alterasi Kuarsa + Halosit + Klorit + Pirofilit (56.5 ppm), Alterasi Kuarsa + Illite (52.4 pm), dan Alterasi Kuarsa + Kaolinit + Klorit + Dickite (19.5 ppm). Endapan bijih yang ditemukan di daerah penelitian, yaitu kasiterit, hematit, dan pirit. Tipe endapan timah di daerah penelitian adalah greisen dan berada pada kontak antara batuan silikat dan batuan granit. Mineralisasi timah primer di daerah penelitian berkaitan dengan sesar, urat-urat, dan alterasi.

Tin mining activities have been carried out since 1976 by PT Timah Tbk so that fewer sources of tin are known. This study aims to determine the characteristics of primary tin mineralization in Parit Tiga, West Bangka Regency, Bangka Belitung Islands. The methods which I used in this study are XRD, XRF, Petrography, and Mineragraphy. Based on the results of the analysis that had been done, the study area consists of two geomorphological units which include the Volcanic Hills Unit and the Anthropogenic Tailings Unit. Based on the interpretation of lithology distribution in the study area, there are two rock units, which are the Fine-Grained Granite Klabat Unit and the Medium-Coarse Grained Granite Klabat Unit. Then, the structure developed in the study area is a Left Normal Slip Fault and sheeted vein/veinlet. Then, alterations developed in the study area consist of four facies, which are Quartz + Tourmaline Alteration (104.2 ppm), Quartz + Halloysite + Chlorite + Pyrophillic Alteration (56.5 ppm), Quartz + Illite Alteration (52.4 pm), and Quartz + Kaolinite + Chlorite + Dickite Alteration (19.5 ppm). The type of primary tin mineralization in the study area is the filling of sheeted veins in tourmaline and quartz minerals. Ore deposits that were found in the study area consisted of cassiterite, hematite, and pyrite. The type of deposit in the study area was greisen and located in contact between silicate rocks and granite rocks. Primary tin mineralization in the study area was related to fracture, veins, and alteration."
Depok: Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Indonesia, 2020
S-pdf
UI - Skripsi Membership  Universitas Indonesia Library