Estimasi Sumberdaya Batubara Blok D dan Blok E di Wilayah Konsesi Iup PT. Andhika Yoga Pratama, Kecamatan Pauh, Kabupaten Sarolangun, Provinsi Jambi

Abstract

Coal is one of the extractive energy in indonesia to very large potentials, Sumatra is known as one of area which has potential resources of coal. The location area PT Andhika Yoga Pratama at Taman Bandung Village, Subdistrict Pauh, District Sarolangun, Province of Jambi. As the efforts to estimate the deposit of resources in contained in mining permit area (area Ijin Usaha Penambangan), the company should conduct an exploration process. Which consist of outcrop monitoring (outcrop descriptions, strike and dip measurements) and conducted mapping under surface with monitoring cutting from the the result of drill process. Data obtained is an the outcrop data and data of drill result. Research was commenced with generated histogram graph based on the thickness of coal, so it could from general overview of the thickness in research area. Based on correlation among drill points, there are 4 coal seam with condition of geometry straight with slope 5,1⁰ to the South west, average of thickness seam A is 15,38 m, seam B 6,02 m, C is 1,15 m, and seam D 3,92 m, resperctively. There is also dwindling of thickness towards the Northwest and splitzing of seam B to the Northwest. This is could be assumed has moderate geological condition. Based on SNI 5015-2011 the distance of drilling point ≤ 500 m is counted as indicated resource classification. Volume calculated for measured resources is 46.189.441,45 m³, mean while indicated resource is 13.893.930,34 m³.

 

Batubara merupakan salah satu bahan galian energi yang terdapat di Indonesia dengan potensi yang sangat besar, keterdapatan tersebut salah satunya di Sumatera. Lokasi IUP PT Andhika Yoga Pratama terletak di  Desa Taman Bandung, Kecamatan Pauh, Kabupaten Sarolangun, Provinsi Jambi. Dalam upaya mengetahui besaran jumlah sumberdaya yang terkandung didalam wilayah Izin Usaha Penambangan, maka suatu perusahaan harus melakukan kegiatan eksplorasi, yang meliputi pengamatan singkapan (deskripsi singkapan, pengukuran strike dan dip) serta melakukan pemetaan bawah permukaan dengan mengamati cutting hasil dari kegiatan pengeboran. Penelitian ini diawali dengan membuat grafik histogram dari ketebalan batubara sehingga mendapatkan gambaran secara umum kondisi ketebalan di daerah penelitian. Dari korelasi antar titik pengeboran, diketahui kemenerusan 4 seam batubara dengan kemiringan 5,1⁰ ke arah Baratdaya, ketebalan rata-rata seam A 15,38 mr, seam B rata-rata 6,02 m, seam C rata-rata 1,15 m, dan seam D rata-rata 3,92 meter, serta adanya penipisan kearah Baratlaut, dan adanya percabangan untuk seam B.Kondisi tersebut termasuk geologi moderat. Dengan jarak titik pengeboran ≤ 500 m maka berdasarkan SNI 5015-2011 termasuk sumberdaya tertunjuk. Perhitungan sumberdaya dilakukan dengan menggunakan metode daerah pengaruh. Volume yang didapat untuk sumberdaya terukur sebesar 46.189.441,45 m³, sedangkan untuk sumberdaya tertunjuk sebesar 13.893.930,34 m³.