LANGKAH KERJA SISTEM INFORMASI GEOGRAFI EKSPLORASI BATUBARA 1. Buat Folder “Bunut” dan tambahkan sub folder Raster, Mi Daerah Prospek, Mi Blok Prospek, Mi Blok Target, Shp, Rkw, Txt. 2. Registrasi peta raster. Open Progam MapInfo -> File -> Open Table -> “SIG Eksplorasi Batubara” -> Raster” -> File of type “ Raster” -> File name “Kapuas_Geologi Raster” -> Open -> Register. X Y X1 113.0 Y1 -1.75 X2 115.25 Y2 -0.25
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LANGKAH KERJA
SISTEM INFORMASI GEOGRAFI EKSPLORASI BATUBARA
1. Buat Folder “Bunut” dan tambahkan sub folder Raster, Mi Daerah Prospek, Mi
Blok Prospek, Mi Blok Target, Shp, Rkw, Txt.
2. Registrasi peta raster.
Open Progam MapInfo -> File -> Open Table -> “SIG Eksplorasi Batubara” ->
Raster” -> File of type “ Raster” -> File name “Kapuas_Geologi Raster” -> Open ->
Register.
X Y
X1 113.0 Y1 -1.75
X2 115.25 Y2 -0.25
3. Buat area daerah prospek.
File -> New table -> Add to Curent Mapper -> Create
Maka akan tampil jendela “New Table Structure” pada Field Information ->
Name “Id”, Type “Interger”, Projection: Category “Longitude / Latitude”,
Category Member “Longitude / Latitude (WGS 84) -> Create.
Akan tampil jendela “Create New Table”, isi File name “Area Daerah Prospek”,
Save as Type “MapIinfo (*.tab) -> Save
Kemudian pilih “Rectangle” buat area dengan koordinat sebagai berikut:
4. Digitasi batas geologi regional.
File -> New table -> Add to Curent Mapper -> Create
Pada jendela “New Table Structure” Field Information -> Name “Id”, Type
“Interger” -> Add field -> Name “Simbol”, Type “Character”, Width “30”,
Projection: Category “Longitude / Latitude”, Category Member “Longitude /
Latitude (WGS 84) -> Create.
X Y
X1 113.583333 Y1 -1.333334
X2 114.416666 Y2 -0.750000
pada jendela “Create New Table”, isi File name “Kapuas_Geologi”, Save as Type
“MapIinfo (*.tab) -> Save
5. Digitasi struktur geologi regional.
File -> New table -> Add to Curent Mapper -> Create
Pada jendela “New Table Structure” Field Information -> Name “Id”, Type
“Interger” -> Add field -> Name “Jenis Struktur”, Type “Character”, Width “50”,
Projection: Category “Longitude / Latitude”, Category Member “Longitude /
Latitude (WGS 84) -> Create.
Pada jendela “Create New Table”, isi File name “Kapuas_Jenis Struktur”, Save as
Type “MapIinfo (*.tab) -> Save.
6. Plot data LP batubara.
File -> Open Table -> “SIG Eksplorasi Batubara” -> XLS ->File of Type : “Microsoft
Excel (*xls)” -> File Name : “LP. Batubara” -> Prefered View : “Current Mapper” ->
Open.
Pilih menu Tabel -> Create Point.
Pada Jendela Create Point -> Create Point for Table “LP_Batubara” -> Get X
Coordinates from Column “LONG” -> Get Y Coordinates from Column “LAT” -
> OK.
File -> Save Copy As -> “LP_Batubara” -> Save As -> Mi Daerah Prospek ->
“LP_Batubara” -> Save.
File _> Close Table -> LP_Batubara -> Close.
File -> Open Table -> Mi Daerah Prospek -> File name : “Kapuas_LP Batubara”
-> File of type : MapInfo (*.tab) -> Prefered View : “Current Mapper” -> Open
7. Plot data LP litologi
File -> Open Table -> “SIG Eksplorasi Batubara” -> XLS -> File of Type :
“Microsoft Excel (*xls)” -> File name : “LP. Litologi” -> Prefered View : “Current
Mapper” -> Open.
Pilih menu Tabel -> Create Point.
Pada Jendela Create Point -> Create Point for Table “LP_Litologi” -> Get X
Coordinates from Column “LONG” -> Get Y Coordinates from Column “LAT”
-> OK.
File -> Save Copy As -> “LP_Litologi” -> Save As -> Mi Daerah Prospek ->
“Kapuas_LP Litologi” -> Save.
File _> Close Table -> LP_Litologi -> Close.
File -> Open Table -> Mi Daerah Prospek -> File name : “Kapuas_LP Litologi” -
> File of type : MapInfo (*.tab) -> Prefered View : “Current Mapper” -> Open
8. Tampilkan kontur SRTM.
Open data dari Folder “SIG Eksplorasi Batubara” -> Mi Daerah Prospek -> File name
: “Kapuas_Kontur SRTM” -> File of type : “MapInfo (*.tab) -> Prefered View :
“Current Mapper” -> Open.
File -> Save Copy As -> “Kapuas_kontur SRTM” -> Save As -> Mi Daerah
Prospek -> “Kapuas_kontur SRTM” -> Save.
File _> Close Table -> Kapuas_kontur SRTM -> Close.
File -> Open Table -> Mi Daerah Prospek -> File name : “Kapuas_kontur
SRTM” -> File of type : MapInfo (*.tab) -> Prefered View : “Current Mapper” ->
Open
9. Tampilkan sungai
Open data dari Folder “SIG Eksplorasi Batubara” -> Mi RBI 250000 Gabung -> File
name : “Sungai” -> File of type : “MapInfo (*.tab) -> Prefered View : “Current
Mapper” -> Open.
File -> Save Copy As -> “Sungai” -> Save As -> Mi Daerah Prospek ->
“Kapuas_Sungai” -> Save.
File _> Close Table -> Sungai -> Close.
File -> Open Table -> Mi Daerah Prospek -> File name : “Kapuas_Sungai” ->
File of type : MapInfo (*.tab) -> Prefered View : “Current Mapper” -> Open.
10. Buat grid area daerah prospek
Klik pada menu bar Discover -> Map Grid maka akan muncul dialog Discover Map
Grid, Isikan Grid spacing Pilih Grid Style , OK
11. Tampilkan blok prospek.
File -> Open Table-> Mi Daerah Prospek -> File name : “Kapuas_Blok Prospek” -> File
of type : MapInfo (*.tab) -> Prefered View : “Current Mapper” -> Open.
File -> Save Copy As -> “Kapuas_Blok Prospek” -> Save As -> Mi Daerah Prospek -
> “Kapuas_Blok Prospek” -> Save.
File _> Close Table -> Kapuas_Blok Prospek -> Close.
File -> Open Table -> Mi Daerah Prospek -> File name : “Kapuas_Sungai” -> File of
type : MapInfo (*.tab) -> Prefered View : “Current Mapper” -> Open
12. File -> New table -> Add to Curent Mapper -> Create
Pada Jendela “New Table Structure” pada Field Information -> Name “Id”, Type
“Interger”, Projection: Category “Longitude / Latitude”, Category Member
“Longitude / Latitude (WGS 84) -> Create.
Pada jendela “Create New Table”, isi File name “Frame layout_Daerah Prospek”,
Save as Type “MapIinfo (*.tab) -> Save.
13. File -> New table -> Add to Curent Mapper -> Create
Pada Jendela “New Table Structure” pada Field Information -> Name :“Id”, Type
“Interger”, Projection: Category “Longitude / Latitude”, Category Member
“Longitude / Latitude (WGS 84) -> Create.
Pada jendela “Create New Table”, isi File name “Judul Peta Daerah Prospek”,
Save as Type “MapIinfo (*.tab) -> Save.
14. Tampilkan layer peta topografi, interpretasi trace bedding, interpretasi lipatan dan
interpretasi sesar.
15. Tampilkan layer Kapuas_Blok Rospek, Kapuas_LP Litologi, Kapuas_LP
Batubara dan Kapuas_Kontur SRTM.
Kemudian copy semua layer dan simpan di Folder “Mi Blok Prospek”.
16. File -> New table -> Add to Curent Mapper -> Create
Pada Jendela “New Table Structure” pada Field Information -> Name : “Id”, Type
“Interger”, Projection: Category “Longitude / Latitude”, Category Member
“Longitude / Latitude (WGS 84) -> Create.
Pada jendela “Create New Table”, isi File name : “Area Blok Prospek”, Save as
Type “MapIinfo (*.tab) -> Save.
17. Buat grid koordinat untuk area blok prospek.
18. Buat peta strike/dip digital di Rockworks.
• Open Rockworks > Single User
• File > New > Both (New Data & File)
• Muncul jendela Template Wizard > Pilih Blank > OK
• Copy data dari Excel
• paste ke Rockworks
• Ubah Template dengan cara Klik Kanan pada mouse isikan No, X, Y, Strike, Dip, Tebal, Litologi, Kalori, > OK
• Klik simbol Strike & Dip Map muncul jendela Create & Strike Dip Map
• Isikan Data Columns, rubah simbol & Label Dimension > OK
19. Save As
20. Kemudian ekspor ke format dxf
• File > Eksport > DXF
21. Impor peta strike dip format dxf di Mapinfo. Tampilkan peta strike dip dalam
format tab di Map Window
• Table > Import,
Muncul jendela import file , pilih strike dip files of type DXF > Open
muncul jendela DXF Import Information > rubah proyeksinya isikan koordinat
pada set transformasi sesuai koordinat kapling
Tampilkan layer Bunut_Strike Dip
22. Mendeliniasi batas litologi
Buat layer baru “Bunut_Sebaran litologi”, klik simbol polygon
23. Buffer LP batubara dengan jarak 400 meter.
Klik Table -> Querry -> Buffer objects from table : “Bunut_LP_Batubara”, store result in
table : “<New> -> Next>
Pada jendela “Create New Table”, isi File name : “Bunut_Buffer 400m”, Save as Type
“MapIinfo (*.tab) -> Save.
Akan muncul jendela Buffer Object -> Value : 400 -> Unit
Akan muncul jendela Buffer Object -> Value : “400”-> Unit : “meters” -> Smoothness :
”100” -> Next>
8. Buat poligon sebaran batubara dengan mengikuti trend trace bedding dan
memperhatikan pola struktur lipatan, sesar dan pola kontur (hukum V), dengan
memperhitungkan faktor kemiringan dip lapisan batubara, mengacu pada SNI radius
sumberdaya infered 400 meter dari singkapan.
9. Analisis Query, tentukan lokasi dengan kualitas batubara > 5500 kcal, tentukan lokasi
dengan tebal batubara > 0,5 meter.
• Query > Select >
• Select record from_Table : …..
• That Satisfy > Kalori > 5500 > And Tebal > 0.5 > OK
10. Buat area/poligon blok target (3 blok target)
11. Hitung luas dan tentukan Control point blok prospek.
12. Mengekstrak data lapangan di Excel.
13. Layout Peta Potensi Sebaran Batubara daerah penyelidikan dilengkapi dengan peta
indeks lokasi.
24.
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