PEMERIAN BATUBARA
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WARNA
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Bk
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Black
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Hitam
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Br bk
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Brownish Black
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Hitam Kecoklatan
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Bk br
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Brackish Brown
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Coklat kehitaman
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Br
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Brown
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Coklat
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D
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Dark
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Gelap
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L
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Light
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Cerah
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M
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Mottled
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Bintik-bintik
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KILAP
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B
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Bright
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Cemerlang
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D
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Dull
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Kusam
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Coal B
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Coal>90% bright
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Batubara cemerlang
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Coal Bd
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Coal 60-90% bright
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Batubara agak cemerlang
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Coal BD
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Coal 40-60& bright
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Perselingan cemerlang-kusam
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Coal Db
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Coal 10-40% bright
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Batubara agak kusam
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Coal D
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Coal 1-10% bright
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Batubara kusam
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GORES
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Bk
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Black
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Hitam
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Br bk
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Brownish black
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Hitam kecoklatan
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Bk br
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Blackish brown
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Coklat kehitaman
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Br
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Brown
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Coklat
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KEKERASAN
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Very Soft
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Sample dapat dipecahkan oleh tangan tanpa
kesulitan, mudah terurai oleh air atau angin
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Soft
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Sample dapat dipotong dengan pisau
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Moderately soft
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Sample tergores oleh pisau, sulit dipecahkan dgn tangan
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Moderately hard
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Sample tidak dapat digores oleh pisau
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Hard
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Sample pecah oleh satu kali pukulan palu
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Very hard
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Sample pecah oleh beberapa kali pukulan palu,
sample sangat sulit dipisahkan, tidak terurai oleh air dan angin
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KETAHANAN TERHADAP
PUKULAN
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Moderately weak
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Contoh batuan dapat ditekuk dengan tangan/palu
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Moderately strong
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Contoh batuan dapat ditekuk sekitar 5 mm oleh
pukulan palu
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Strong
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Satu pukulan palu cukup untuk memecahkan sample
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Very strong
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Contoh batuan pecah oleh beberapa kali pukulan
palu
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Friable
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Dapat diremukan dengan genggaman tangan
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Brittle
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Contoh batuan bergaris tengah 5 cm dapat
dipatahkan dengan tangan tetapi tidak dapat diremukan oleh genggaman tangan
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Tough
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Contoh batuan bergaris tengah 5 cm tidak dapat
dipatahkan dengan tangan
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PECAHAN
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Une
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Uneven
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Tidak beraturan
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E
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Even
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Beraturan
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Cub
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Cubical
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Kubus
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Sht
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Sheet
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Lembaran
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PEMILAHAN (SORTING)
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V.p.Srtd
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Very poorly sorted
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psrtd
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Poorly sorted
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msrtd
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Moderately sorted
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wsrtd
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Well sorted
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vwsrtd
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Very well sorted
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CLEAT
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Att
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Attitude
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Kedudukan bidang cleat
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Spc
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Spacing cleat
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Kisaran jarak antar cleat
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>>
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Dominan
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Jarak dominan
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End cleat
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Face Cleat
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TEBAL
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Gct
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Gross coal thickness
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Tebal batubara termasuk parting
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Nct
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Net coal thicknees
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Tebal batubara bersih
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PENGOTOR
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Res
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Resin
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Resin/amber/damar
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Pyrt
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Pyrite
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Pirit
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Ss-Clst
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Sandstone/claystone
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Batupasir/Batulempung
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Qrtz
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Quartz
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Kuarsa
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Pel
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Pelledtoidal
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Pellet/butir/pil
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UKURAN BUTIR
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Bld
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Boulder
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Cbl
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Couble
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Pbl
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Pebble
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Gran
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Granule
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Vcg
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Very coarse grained
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Cg
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Coarse grained
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Mg
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Medium grained
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Fg
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Fine grained
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Vfg
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Very fine grained
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Combination
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Kombinasi
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Vfg to mg
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Very fine grained to medium grained
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UKURAN BESAR BUTIR
MENURUT WENWORTH
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Pebble
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> 4mm
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Granule
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2-4 mm
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Pasir sangat kasar
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1-2mm
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Pasir kasar
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0,5-1 mm
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Pasir menengah
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0,25-0,5 mm
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Pasir halus
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0,125-0,25mm
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Pasir sangat halus
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0,0625-0,125 mm
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Lanau
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0,039-0,0625 mm
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Lempung
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< 0,039 mm
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STRUKTUR SEDIMEN
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Bioturbatted
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Burrows
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Coarse up wards
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Compation structures
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C in C
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Cone in cone structures
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X – bed
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Crossbedding
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Fining upward
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Flaser bedding
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Flute cast
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Grad bedding
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Irreg. Bed
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Irregular bedding
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Load cast
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Lent bed
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Lenthicular bedding
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Mass bedding
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Massive bedding
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Micro faulting
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Tidal flat bedding
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Symmetrical ripple marks
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KLASIFIKASI
KEDUDUKAN
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Kontak
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Erosi
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Tegas
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Beransur
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Intrusi
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KEDUDUKAN
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Flat
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Rata/hampir rata
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0-2 %
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Slope
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Landai
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3-7 %
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Aslant
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Miring
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8-13 %
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Middle steep
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Curam menengah
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14-20 %
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Steep
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Curam
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24-55 %
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Abrupt
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Sangat curam
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55-140 %
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Very abrupt
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Amat sangat curam
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> 140 %
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BATUBARAAN
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Coaly Clyst
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Coaly Claystone
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Batulempung batubaraan
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Coaly Mdst
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Coaly Mudstone
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Batulumpur batubaraan
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Coaly Shst
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Coaly Shalestone
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Batuserpih batubaraan
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Coaly Stst
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Coaly Siltstone
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Batulanau batubaraan
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Coaly Ss
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Coaly Sandstone
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Batupasir batubaraan
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KARBONAN
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Carb Clyst
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Carbonaceous Claystones
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Batulempung karbonan
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Carb Mdst
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Carbonaceous Mudstone
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Batulumpur karbonan
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Carb Sh
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Carbonaceous Shale
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Batuserpih karbonan
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Carb Slstq
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Carbonaceous Siltstone
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Batulanau karbonan
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Carb Ss
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Carbonaceous Sandstone
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Batupasir karbonan
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LITOLOGI BATUAN
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Coal
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Coal
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Batubara
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Gani
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Ganister
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Ganister
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Resn
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Resin
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Damar/getah
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Sico
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Silica Coal
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Batubara mengandung Silica
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Seat
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Seat earth
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Batuan mengandung akar tumbuhan (tempat
tumbuh-tumbuhan)
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Tons
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Tonstein
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Sisipan batulempung pada batubara
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Alvm
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Alluvium
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Clyst
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Claystone
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Ssst
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Sandstone
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Slst
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Siltsone
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Tuff
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Tuff
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Brec
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Breccias
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Cblcgl
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Cobble conglomerate
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Cgl
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Conglomerate
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Igns
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Igneous rock
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Igt
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Ignimbrite
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Lmst
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Limestone
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Mdst
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Mudstone
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Nocr
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Non coring
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Tanpa inti bor
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Core loss
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Core loss
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Flt breccias
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Falut breccias
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Gran cong
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Granule conglomerate
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Gravel
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Laterite
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Marl
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Sh
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Shale
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Silt
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Soil
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MINERAL
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Ccqz
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Crystal Quartz
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Chrt
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Chert
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Clct
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Kalsit
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Calc
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Calcite
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Carb
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Carbonate
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Chl
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Chlorite
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Py
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Pyrite
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Flsr
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Feldspar
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Gani
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Ganister
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Glau
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Glaouconite
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Gyps
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Gypsum
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Mic
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Mica
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Mika
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Pyrt
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Pyrite
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Pirit
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Qrtz
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Quartz
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Kuarsa
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Matrix
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Matrix
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Olig
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Oligomict
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Pel
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Peletoidal
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Polymict
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Polymict
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Qtz.fels
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Quarts felspartic
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Qtz. Lith
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Quarts lithic
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Qtz. Os
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Quartzose
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Chl
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Chlorite
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STRUKTUR SEDIMEN
YANG BERASOSIASI DENGAN BATUBARA
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Nod
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Nodule
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Gran
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Granular
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Lat
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Lateritic
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Lith
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Lithic
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Lens
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Lenses
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Mat
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Matrix
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Mar
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Marly
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Bands
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Bands
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Calc
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Calcareous
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Carb
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Carbonaceous
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Cmt
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Cement
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Clay band
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Clay band
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Coal bands
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Coal bands
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Coal Spars
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Coal spars
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Coal Streaks
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Coal streaks
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Coaly
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Coaly
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Fe
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Ferruginous
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Mic
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Micacues
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Muddy
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Muddy
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Olig
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Oligomict
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Pebbly
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Pebbly
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Pel
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Pelletoidal
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Polimict
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Polimict
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Qtz.fels
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Quarts felspartic
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Qtz. Lith
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Quarts lithic
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Qtz. Os
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Quartzose
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Resinous
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Resinous
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Rooted
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Rooted
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Sst.strks
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Sandstone streaks
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Sandy
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Sandy
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Sh.strks
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Shale streaks
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S
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Slightly
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Silty
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Silty
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Cleat veneer
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Disseminated
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Joint in fill
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Laminar
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Lenses
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Staining
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Veins
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KONDISI INTI BOR
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Solid core
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Solid core
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Inti bor padat
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S.brkn core
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Slightly broken core
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Inti bor sedikit rapuh
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Brkn core
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Broken core
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Inti bor rapuh
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Frag.core
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Fragmented core
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Inti bor terbagi-bagi
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DERAJAT KELIMPAHAN
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Abnt
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Abundant
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Berlimpah
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Com
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Common
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Biasa
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Spse
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Sparse
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Jarang/tipis
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Rare
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Rare
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Langka
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ORIENTASI
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VH ang
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Veryhigh angle (>45)
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H. ang
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High angle (30-45)
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M. ang
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Moderate angle (20-30)
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L. ang
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Low angle (10-20)
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Vl.ang
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Very low angle (0-10)
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BIDANG
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Bed plane
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Bedding plane fracture
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Cleats
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Cleats
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Frac
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Fractures
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Joints
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Joints
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Faults
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Faults
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KEBUNDARAAN (ROUNDNESS)
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V ang
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Very angular
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Ang
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Angular
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Sub. Ang
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Sub Angular
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Sub. Rnd
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Sub rounded
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Rnd
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Rounded
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DERAJAT PELAPUKAN
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Fr
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Fresh
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Segar
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Sw
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Slightly weathered
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Warna segar & tekstur sebagian
berubah/ternodai
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MW
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Moderately weathered
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Ternodai diseluruh batuan
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PELAPUKAN
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Segar
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Batuan tidak menunjukan adanya pelapukan,
perubahan warna pada permukaan rekahan sedikit sekali
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Agak lapuk
|
Terjadi perubahan warna yang menunjukan
pelapukan, warna segar dan tekstur masih tampak tapi belum diperlunak secara
nyata
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Lapuk sedang
|
Warna asli sudah tidak dapat dikenali dan batuan
tampak lunak
|
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Lapuk
|
Beberapa material batuan terkomposisi dan atau
terdisentegrasi menjadi tanah.batuan yang berubah warna atau lunak terdapat
sebagai inti batu dalam tanah
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Sangat lapuk
|
Seluruh material menjadi tanah, tapi tekstur asli
masih tampak
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PERLAPISAN
|
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V.thk bed
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Very thickly bedded >1m
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Thk bed
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thickly bedded 30-100cm
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Med. Bed
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Medium bedded 10-30cm
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Thin bed
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Thinly bedded 3-10cm
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V. thin bed
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Very thinly bedded 1-3cm
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Lam
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Laminated 3mm-10mm
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Thin lam
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Thinly laminated <3mm
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TANAH PENUTUP
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Very shallow
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Tidak ada/sangat tipis
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0-10cm
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Shallow
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Tipis
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11-25cm
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Moderately shallow
|
Tipis sedang
|
26-50cm
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Moderately deep
|
Dalam sedang
|
51-75cm
|
Deep
|
Dalam
|
76-100cm
|
Very deep
|
Sangat dalam
|
101-150cm
|
Exceptionally deep
|
Luar biasa dalam
|
>150cm
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Artikel Tentang Dunia Geologi, Eksplorasi, Energi, dan Sumberdaya Alam
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