DARMAWAN, YOGI (2024) GEOLOGI DAN PERHITUNGAN SUMBERDAYA BATUBARA SEAM “A, B, C” FORMASI TANJUNG MENGGUNAKAN METODE CIRCULAR USGS (1983) PADA DESA KATANJUNG, KECAMATAN KAPUAS HULU, KABUPATEN KAPUAS, PROVINSI KALIMANTAN TENGAH. Other thesis, UPN Veteran Yogyakarta.
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Abstract
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SARI
Penelitian secara administratif berada di Desa Katanjung, Kecamatan Kapuas Hulu,
Kabupaten Kapuas, Provinsi Kalimantan Tengah, Indonesia. Berdasarkan fisiografi
regional lokasi penelitian berada di Cekungan Barito dengan koordinat (Sistem
koordinat UTM zona 49S) X1Y1 = 824450, 9900950 dan X2Y2 = 827150, 9902550.
Tujuan dari penelitian ini untuk mengetahui keadaan geologi daerah penelitian dan
menghitung sumberdaya batubara seam A, B, dan C. Metode penelitian yang
digunakan adalah pemetaan geologi (data permukaan) dan perhitungan sumberdaya
batubara menggunakan Metode Circular USGS (1983). Pola pengaliran yang
berkembang adalah subdendritik. Geomorfologi pada Daerah Katanjung dibagi
menjadi 4 bentuklahan asal dan 6 bentuklahan. Bentuklahan asal denudasional
dengan bentuklahan dataran nyaris (peneplain) (D1), bentuklahan asal fluvial
dengan bentuklahan tubuh sungai (F1), bentuklahan asal struktural dengan
bentuklahan perbukitan struktural bergelombang kuat (S1), perbukitan struktural
bergelombang lemah (S2), lereng struktural (S3), dan bentuklahan asal vulkanik
dengan bentuklahan bukit intrusi (V1). Stratigrafi daerah penelitian jika diurutkan
dari tua ke muda adalah satuan batupasir Tanjung, satuan batulempung Tanjung,
satuan intrusi andesit, dan satuan endapan alluvial. Lingkungan pengendapan dari
satuan batulempung dan batupasir Tanjung adalah Delta Plain. Struktur geologi
pada Daerah Katanjung adalah sesar naik, sesar turun, sesar mendatar, kekar dan
cleat. yang memiliki tegasan utama berarah timurlaut - baratdaya yang berpengaruh
membentuk 2 arah kedudukan batuan, yaitu dengan orientasi baratdaya - timurlaut
dan baratlaut - tenggara. Berdasarkan aspek sedimen dan tektonik (SNI-5015,
2011), Daerah Katanjung termasuk kategori kondisi geologi kompleks. Pada
pemetaan geologi didapatkan ketebalan lapisan batubara yang telah dikoreksi
dengan kemiringan (dip) adalah seam A 0.284 m, seam B 1.216 m, seam C Barat
2.105 m, dan seam C Timur 1.133 m. Perhitungan sumberdaya batubara dengan
metode Circular USGS (1983) dengan nilai densitas batubara 1,25 ton / m3 maka
didapatkan tonase sumberdaya batubara adalah terukur 295.803,301 ton, tertunjuk
1.052.239,863 ton, dan tereka 3.009.257,731 ton.
Kata kunci : Batubara, Geologi, Formasi Tanjung, Metode Circular USGS,
Sumberdaya.
vii
ABSTRACT
The research is administratively located in Katanjung Village, Kapuas Hulu
District, Kapuas Regency, Central Kalimantan Province, Indonesia. Based on
regional physiography the research location is in the Barito Basin with coordinates
(UTM coordinate system zone 49S) X1Y1 = 824450, 9900950 and X2Y2 = 827150,
9902550. The purpose of this study is to determine the geology of the study area
and calculate the coal resources of seam A, B and C. The research method used is
geological mapping (surface data) and calculation of coal resources using the
USGS Circular Method (1983). The flow pattern that develops is subdendritic.
Geomorphology in the Katanjung Area is divided into 4 original landforms and 6
landforms. Denudational origin landforms with almost plain(peneplain) landforms
(D1), fluvial origin landforms with river body landforms (F1), structural origin
landforms with strong undulating structural hills (S1), weak undulating structural
hills (S2), structural slopes (S3), and volcanic origin landforms with intrusion hill
landforms (V1). The stratigraphy of the study area when sorted from old to young
is the Tanjung sandstone unit, Tanjung mudstone unit, andesite intrusion unit, and
alluvial deposits unit. The depositional environment of the Tanjung mudstone and
sandstone unit is Delta Plain. Geological structures in the Katanjung area are
reverse faults, normal faults, strike-slip faults, fractures, and cleats. which have a
main northeast - southwest direction that has an effect on forming 2 directions of
rock position, namely with a southwest - northeast and northwest - southeast
orientation. Based on sedimentary and tectonic aspects (SNI-5015, 2011), the
Katanjung area is categorized as a complex geological condition. In the geological
mapping, the thickness of the coal seam that has been corrected withdip is seam A
0,284 m, seam B 1,216 m, seam C West 2,105 m, and seam C East 1,133 m.
Calculation of coal resources using the USGS Circular method (1983) with a coal
density value of 1.25tons/m3, the tonnage of coal resources obtained is measured
295,803,301 tons, indicated 1,052,239,863 tons, and inferred 3,009,257,731 tons.
Keywords : Coal, Geology, Resource, Tanjung Formation, USGS Circular Method.
| Item Type: | Thesis (Other) |
|---|---|
| Uncontrolled Keywords: | Coal, Geology, Resource, Tanjung Formation, USGS Circular Method. |
| Subjects: | Q Science > QE Geology |
| Divisions: | Faculty of Engineering, Science and Mathematics > School of Engineering Sciences |
| Depositing User: | Eko Yuli |
| Date Deposited: | 20 May 2024 07:11 |
| Last Modified: | 20 May 2024 07:11 |
| URI: | http://eprints.upnyk.ac.id/id/eprint/39479 |
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