Skripsi Geologi Dan Karakteristik Batubara Formasi Muara Enim Daerah Ulak Lebar Dan Sekitarnya, Kecamatan Merapi Barat, Lahat, Sumatera Selatan

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Skripsi Geologi Dan Karakteristik Batubara Formasi Muara Enim Daerah Ulak Lebar Dan Sekitarnya, Kecamatan Merapi Barat, Lahat, Sumatera Selatan SKRIPSI GEOLOGI DAN KARAKTERISTIK BATUBARA FORMASI MUARA ENIM DAERAH ULAK LEBAR DAN SEKITARNYA, KECAMATAN MERAPI BARAT, LAHAT, SUMATERA SELATAN Oleh: Mutia Armilia Rahmawati 03071281320004 PROGRAM STUDI TEKNIK GEOLOGI FAKULTAS TEKNIK, UNIVERSITAS SRIWIJAYA 2018 SKRIPSI GEOLOGI DAN KARAKTERISTIK BATUBARA FORMASI MUARA ENIM DAERAH ULAK LEBAR DAN SEKITARNYA, KECAMATAN MERAPI BARAT, LAHAT, SUMATERA SELATAN Disusun Sebagai Salah Satu Syarat Untuk Mendapatkan Gelar Sarjana Teknik Pada Program Studi Teknik Geologi Universitas Sriwijaya Oleh: Mutia Armilia Rahmawati NIM. 03071281320004 PROGRAM STUDI TEKNIK GEOLOGI FAKULTAS TEKNIK, UNIVERSITAS SRIWIJAYA 2018 i HALAMAN PENGESAHAN 1. Judul Penelitian : Geologi dan Karakteristik Batubara Formasi Muara Enim Daerah Ulak Lebar dan Sekitarnya, Kecamatan Merapi Barat, Lahat, Sumatera Selatan 2. Biodata Peneliti : a. Nama Lengkap : Mutia Armilia Rahmawati b. Jenis Kelamin : Perempuan c. NIM : 03071281320004 d. Alamat Rumah : Jl. Rawas 4 No. 486 Kel. Lebung Gajah Kec. Sematang Borang Palembang e. Telepon/hp/faks/email : 082380810087/[email protected] 3. Nama Penguji I : Dr. Budhi Kuswan Susilo, S.T., M.T. ( ) 4. Nama Penguji II : Falisa, S.T., M.T. ( ) 5. Nama Penguji III : Elisabet Dwi Mayasari S.T., M.T. ( ) 6. Jangka Waktu Penelitian : ± 10 bulan a. Persetujuan lapangan : 26 Desember 2016 b. Sidang Sarjana : 2 Maret 2018 7. Pendanaan : a. Sumber dana : Mandiri b. Besar dana : Rp 4.875.000 Indralaya, 29 Maret 2018 Menyetujui, Pembimbing Peneliti, Idarwati, S.T., M.T Mutia Armilia Rahmawati 198306262014042001 03071281320004 Menyetujui, Ketua Program Studi Teknik Geologi, Dr. Ir. Endang Wiwik Dyah Hastuti, M.sc 195902051988032002 ii HALAMAN PERNYATAAN INTEGRITAS Yang bertanda tangan di bawah ini: Nama : Mutia Armilia Rahmawati NIM : 03071281320004 Judul : Geologi dan Karakteristik Batubara Formasi Muara Enim Daerah Ulak Lebar dan Sekitarnya, Kecamatan Merapi Barat, Lahat, Sumatera Selatan Menyatakan dengan sebenar-benarnya bahwa sepanjang pengetahuan saya di dalam naskah skripsi ini tidak terdapat karya ilmiah yang pernah diajukan oleh pihak lain untuk mendapatkan karya atau pendapat yang pernah ditulis atau diterbitkan oleh orang lain, kecuali yang secara tertulis diikuti dalam naskah ini dan disebut dalam sumber kutipan dan daftar pustaka. Apabila ternyata di dalam naskah skripsi ini dapaat dibuktikan terdapat unsur- unsur jiplakan, saya bersedia skripsi ini digugurkan dan gelar akademik yang telah saya peroleh (S1) dibatalkan, serta diproses sesuai dengan peraturan yang berlaku (UU No. 20 Tahun 2003 Pasal 25 Ayat 2 dan Pasal 70) Palembang, 29 Maret 2018 Mutia Armilia Rahmawati NIM. 03071281320004 iii HALAMAN PERSETUJUAN PUBLIKASI Yang bertanda tangan di bawah ini: Nama : Mutia Armilia Rahmawati NIM : 03071281320004 Judul : Geologi dan Karakteristik Batubara Formasi Muara Enim Daerah Ulak Lebar dan Sekitarnya, Kecamatan Merapi Barat, Lahat, Sumatera Selatan Memberikan izin kepada Pembimbing dan Universitas Sriwijaya untuk mempublikasikan hasil penelitian saya untuk kepentingan akademik apabila dalam waktu 1 (satu) tahun tidak mempublikasikan karya penelitian saya. Dalam kasus ini saya setuju untuk menempatkan Pembimbing sebagai penulis korespondensi (corresponding author). Palembang, 29 Maret 2018 Mutia Armilia Rahmawati NIM. 03071281320004 iv UCAPAN TERIMA KASIH Assalamualaikum warrahmatullahi wabarakatuh, Melalui kesempatan ini saya selaku penulis ingin memanjatkan puji syukur kehadirat Allah terutama atas nikmat umur dan kesehatan yang diberikan-Nya sehingga penulis dapat menyelesaikan laporan Tugas Akhir (TA) sebagai syarat dalam memperoleh kelulusan pendidikan Strata 1 (S1) Program Studi Teknik Geologi Universitas Sriwijaya. Penulis juga menghaturkan terim kasih yang sebesar-besarnya kepada orang-orang yang terlibat baik secara langsung maupun tidak langsung dalam membantu, membimbing dan memberikan dukungan kepada penulis, yaitu : Atas segala upaya dan proses yang dilalui hingga laporan akhir ini mencapai tahap finalisasi, pada halaman ini secara khusus saya persembahkan untuk semua pihak yang terlibat. Mungkin banyak pihak yang tidak dapat saya sebutkan satu per satu, hanya saja hal ini tidak mengurangi rasa hormat saya selaku penulis. Adapun laporan ini saya persembahkan secara khusus kepada : 1. Kedua orang tua saya tercinta, mama Yulia Susilawati dan papa Nasrul Amri yang selalu memberikan dukungan baik secara moril maupun materil. 2. Adik saya, Karina, yang senantiasa menjadi wadah bagi keluh-kesah saya. 3. Dosen pembimbing tugas akhir (TA) Idarwati S. T., M. T. dan dosen pembimbing akademik Prof. Ir. Edy Sutriyono, M.Sc., Ph.D. yang telah mencurahkan waktu, ilmu, pikiran dan masukan-masukan kepada penulis sejak awal perkuliahan. 4. Staff dosen dan karyawan PSTG Unsri, teman-teman HMTG serta seluruh mahasiswa/i PSTG Unsri Angkatan 2013-2017 5. Rekan pemetaan saya selama di lapangan Alan Tri Yoga, Anggela Dwi Clara dan Ferdy. 6. Sahabatku Etra Marleta Oktapiani, Meilinda Anggraini dan Anggela Dwi Clara. 7. Rekan-rekan sesama bimbingan Bu Idar serta teman-teman seangkatan Geologi 13. 8. Pihak-pihak lain yang turut membantu dalam penyelesaian tugas akhir. Penulis menyadari bahwa dalam penyusunan laporan ini masih terdapat kekurangan dan jauh dari kata sempurna, semata-mata dikarenakan terbatasnya pengetahuan yang dimiliki. Penulis berharap bahwa tulisan ini dapat menjadi suatu hal yang berguna. Semoga skripsi ini dapat memberikan wawasan dan informasi yang bermanfaat bagi pembaca. v GEOLOGI DAN KARAKTERISTIK BATUBARA FORMASI MUARA ENIM DAERAH ULAK LEBAR DAN SEKITARNYA, KECAMATAN MERAPI BARAT, LAHAT SUMATERA SELATAN Mutia Armilia Rahmawati 03071281320004 SARI Penelitian dilakukan di Daerah Ulak Lebar dan sekitarnya, Kabupaten Lahat, Sumatera Selatan dan mengangkat judul Studi Geologi dan Karakteristik Batubara Formasi Muara Enim Daerah Ulak Lebar dan Sekitarnya, Kecamatan Merapi Barat, Lahat, Sumatera Selatan. Secara geologi, daerah penelitian disusun oleh tiga formasi yaitu Formasi Air Benakat, Formasi Muara Enim dan Formasi Kasai. Formasi Muara Enim merupakan formasi pembawa batubara di Cekungan Sumatera Selatan. Studi khusus yang dilakukan bertujuan mengetahui karakteristik batubara di daerah penelitian dilihat dari sifat megaskopis dan mikroskopisnya, serta mengetahui perkembangan dan karakteristik cleat pada lapisan batubara. Secara fisik, batubara di lokasi penelitian berwarna hitam kecokelatan, dengan gores cokelat, kilap kusam, brittle, pecahan cubical dan memiliki berat yang relatif ringan. Pengamatan atribut cleat dilakukan di tiga stasiun pengamatan yaitu LP 2A, LP 2B dan LP 67, hasil yang diperoleh menunjukkan arah tegasan utama cleat relatif berorientasi NW – SE. Kehadiran cleat pada batubara menjadi tolak ukur tingkat kematangan batubara, cleat yang berkembang baik pada suatu lapisan batubara menandakan bahwa batubara tersebut belum mengalami tingkat kematangan yang tinggi. Mineral-mineral yang mengisi bukaan cleat turut mempengaruhi nilai kualitas batubara, karena mempengaruhi peningkatan kandungan mineral matter sehingga mengurangi nilai kalori batubara. Hal ini didukung pula melalui uji petrografi pada satu sampel batubara yang menunjukkan bahwa batubara di lokasi penelitian tergolong batubara peringkat rendah (sub-bituminous). Kata Kunci : Geologi, Batubara, Formasi Muara Enim, Cleat vi GEOLOGY AND THE COAL CHARACTERISTICS OF MUARA ENIM FORMATION IN ULAK LEBAR AREA AND SURROUNDINGS, WESTERN MERAPI DISTRICT, LAHAT, SOUTH SUMATRA Mutia Armilia Rahmawati 03071281320004 ABSTRACT The research conducted in Ulak Lebar and surrounding areas, Lahat regency, South Sumatra with the title of Geological Study and The Coal Characteristics of Muara Enim Foration in Ulak Lebar Area, Western Merapi Districts, Lahat Regency, South Sumatra. Geologically, the research area is consists of three formations, such as Airbenakat Formation, Muara Enim Formation and Kasai Formation. Muara Enim Formation is known as the main coal-bearing formation in South Sumatra Basin. The main focus of the study aimed to to determine the characteristics of coal based on its physical and microscopic features, and also to know the cleat development at the coal seam in the research area. Physically, the coal is brownish black to black colored, with brown strike, dull luster, brittle, conchoidal fractures and has a relatively light weight. Cleat attributes observations were performed in three observation stations, namely LP 2A, LP 2B and LP 67, the results obtained indicating that the maximum stress level is NW-SE oriented. The presence of cleats is one of the factors in determining the coal maturity level, well- developed cleat on a coal seam indicating that the coal has not experienced high levels of maturity. The mineral that fills cleat openings is also affecting the coal quality value, as it affects the increase in mineral matter content, thereby reducing the calorific value of coal. Thus, supported also by the petrographic analysis on one coal sample showing that the coal in the research area was classified as low rank coal (sub-bituminous). Keywords : Geology, Coal, Muara Enim Formation, Cleats vii DAFTAR ISI HALAMAN JUDUL ........................................................................................................i HALAMAN PENGESAHAN.......................................................................................... ii HALAMAN PERNYATAAN INTEGRITAS .............................................................. iii HALAMAN PERNYATAAN PERSETUJUAN PUBLIKASI ..................................
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