002-fisiografi wilayah indonesia yang memperlihatkan distribusi dari benua
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Fisiografi IndonesiaTRANSCRIPT
TECTONIC EVOLUTION AND DEVELOPMENT IN INDONESIA
INDONESIA IN THE GLOBAL TECTONIC POSITION
Saull (1986) pointed out that no global tectonic model should ever be considered definitive,
because geological and geophysical observations are nearly always open to alternative
explanations.
INDONESIA POSITION GLOBAL PLATE-TECTONICS
PLATE TECTONICS THEORY (1960)
1. Spreading center 2. Transform fault 3Subduction zone
PLATE TECTONIC SETTINGN OF INDONESIAN REGION
PAC
AUS
ERASIA
• THE MOST ACTIVE TECTONIC REGION
• INTERACTION THREE MAJOR PLATES
• COMPLEX TECTONIC HISTORY
• INVOLVING NUMEROUS MICRO-PLATES
BATHYMETRY AND TOPOGRAPHY
FISIOGRAFI WILAYAH INDONESIA YANG MEMPERLIHATKAN DISTRIBUSI DARI BENUA DAN
SAMUDRA
SEISMOTECTONIC MAP OF INDONESIA
Crustal motions from GPS study (Bock et al, 2004) & TECTONICS of INDONESIA
India-Australian Plate
Eurasian Plate
Pacific Plate
5-6 cm/yr
12 cm/yr
GRAVITY MAP
BPMIGAS-LAPI ITB 2008
BPMIGAS-LAPI ITB 2008
BPMIGAS-LAPI ITB 2008
BPMIGAS-LAPI ITB 2008
EXISTING BASIN DISTRIBUTION MAP
• 60 POTENTIAL TERTIARY BASIN (IAGI – BPPKA)• CONCEPT OF BASIN CLASSIFICATION
• NEWLY DISCOVERED BASIN
BPMIGAS-LAPI ITB 2008
BPMIGAS-LAPI ITB 2008
BASIN TYPE OF INDONESIA AND SOUTHEAST ASIA
Benjamin Clements & Robert Hall (2007)
BPMIGAS-LAPI ITB 2008
BPMIGAS-LAPI ITB 2008
PRIVATE AND CONFIDENTIAL 23
PETA CEKUNGAN 86 INDONESIA (BPMIGAS 2008)
Sumur
BPMIGAS-LAPI ITB 2008
PRIVATE AND CONFIDENTIAL 25BPMIGAS-LAPI ITB 2008
PRIVATE AND CONFIDENTIAL 26BPMIGAS-LAPI ITB 2008
PRIVATE AND CONFIDENTIAL 27BPMIGAS-LAPI ITB 2008
PRIVATE AND CONFIDENTIAL 28BPMIGAS-LAPI ITB 2008
PRIVATE AND CONFIDENTIAL 29BPMIGAS-LAPI ITB 2008
PRIVATE AND CONFIDENTIAL 30BPMIGAS-LAPI ITB 2008
PRIVATE AND CONFIDENTIAL 31BPMIGAS-LAPI ITB 2008
TERTIARY BASIN DISTRIBUTION MAP AND THEIR PETROLEUM OCCURENCES
(Pertamina / UNOCAL, 1997)
PUBLISHED SEDIMENT THICKNESS MAP
• GENERATE ISOPACH MAP
INONESIA PLATE TECTONIC MAP AND TECTONIC EVOLUTION
Katili, 1980
THE PLATE-TECTONIC CONFIGURATION OF INDONESIA AND SURROUNDINGS (KATILI 1980)
0 400 km
TECTONICS AND STRUCTURES OF INDONESIA (SIMANDJUNTAK & BARBER 1996)
CONTINENTAL CRUST
TRANSITIONALCRUST
OCEANIC CRUST
SUTURE
CONTINENTAL CRUST
CONTINENTAL CRUST
TRANSITIONALCRUST
OCEANIC CRUST
SUTURE
CONTINENTAL CRUST
PETA TEKTONIK
MAP SHOWING VARIOUS TIMING OF MAJOR TECTONIC ACTIVITIES IN DIFFERENT AREAS OF SOUTHEAST ASIA AFTER SCHEREUS (1996)
Late Cretaceous to early Eocene (100-56 Ma)Regional metamorphism generated by subduction and evolution of the Meratus arc. Deformation, uplift, erosion and cooling occurred in the Paleocene Eocene (50-40 Ma) Indian plate collides with Eurasian coupled with change in relative plate motions of the Pacific plate. This gives rise to dextral wrenching of the southern margin of the Sunda craton.
Mid Oligocene (34-30 Ma) South China Sea rifting and accretion in northern Kalimantan. The New Guinea margin of the Australian plate collides with several arc complexes.
Mid Miocene (17-10 Ma) South China Sea rifting ceases with the collision of continental derived Gondwana fragments (northern Australia/Western Papua) against the eastern Sunda margin.
Late Miocene (7-5 Ma)Northwest Australia collides with the Sunda craton with development of the Sunda trench and Indonesian arc.
TECTONIC MAP OF INDONESIA
PETA TEKTONIK
BPMIGAS-LAPI ITB (2008)
MOST RECENT TECTONIC MAP (2008)
METCALFE, 2009;
10 Ma
36 Ma
55 Ma
71 Ma
60 70 80 90
40
30
20
10
30
20
0
10
DRIFT OF THE INDIANSUB-PLATE
STRU13
HAINAN
MACCLESFIELD B A N K
REEDBANK
LUZON
ACCRETED CRUST
OCEANIC CRUSTMINDORO
PALAW
AN
THINNED CONTINENTAL CRUST
S A B A H
SULU BASIN
SULAWESI BASIN
C H I N A
CONTINENTAL CRUST
11
8
Magnetic Anomaly
5e5d
8
Magnetic stripes
PACIFIC
BASIN
S e a m o u n t s
SOUTH CHINA SEA BASIN
500 km
TAIWAN
I N D O -C H I N A
MAJOR TERTIARY PLATE TECTONIC MOTIONS
1. EXTRUSION OF INDOSINIA THROUGH COLLISION OF INDIAN SUBPLATE WITH EURASIA2. OPENING OF SOUTH-CHINA SEA BASIN3. PACIFIC PLATE PUSHING WEST
1
2
2
2
2
1-2
SUNDA TRENCH
C H I N A
INDIA
SOUTH CHINA SEA BASIN
MALAY BASIN
3
11
PHILIPPINE PLATE
AUSTRALIA - INDIAN OCEAN
PLATE
ALTYN FAULT
ANDAMAN BASIN
EXTRUSION TECTONICS
P. TAPPONNIER et al. 1982.
TEK9a
SC
IC
Su
Me
SC SOUTH CHINA
ICINDOCHINA
MeMENTAWEI
SuSUNDALAND
BASIN AGES OF SUNDA LAND CORE
Benjamin Clements & Robert Hall (2007)
(VARIOUS SOURCES
MAJOR STRUCTURES OF INDONESIAN REGIONS
PEMBAHAGIAN FISIOGRAFI
BATHYMETRY AND TOPOGRAPHY
SUNDALAND
AUSTRALIA
TECTONIC ELEMENTS • SUNDALAND (WESTERN PART)• AUSTRALIA (EASTERN PART)• PACIFIC OCEANIC CRUST
PLATE TECTONIC SETTING OF INDONESIAN REGION
PACIFIC
WESTERN INDONESIA EASTERN INDONESIA
200
M
GUNTORO 1996
NEW PROPOSED INDONESIAN TECTONIC REGIONS
• 4 (FOUR) INDONESIAN TECTONIC REGIONS• SUNDA • BANDA• PACIFIC
• AUSTRALIAN
KERANGKA TEKTONIK
BPMIGAS-LAPI ITB (2008)
PETA TEKTONIK
BPMIGAS-LAPI ITB (2008)
PETA BATAS CEKUNGAN
BPMIGAS-LAPI ITB (2008)
• 83 BASIN • 23 NEWLY RECOGNIZED BASIN
PETA TEKTONIK DAN CEKUNGAN
BPMIGAS-LAPI ITB (2008)
TECTONIC REGIONS
PAC
AUS
ERASIA
INDO-AUS
SUNDALAND
1
2 3
4
Western Indonesia
Eastern Indonesia
Central Indonesia
TECTONIC ELEMENTS (FREE AIR GRAVITY)
ERUESIA PLATE AND FRAGMENT DOCKING
R. Hall and Sevastjanova, I., 2012
BASEMENT COMPOSITION
PALEOZOIC – MESOZOIC TECTONIC RECONSTRUCTION
CENOZOIC TECTONIC RECONSTRUCTION
HALL (1996)
Tectonics configuration of Indonesian archipelago located in the three major plates. Tectonically Indonesian in divided into western Indonesian (of asian affinities), and eastern Indonesia of Australian affinities
Regional Tectonics
Plate reconstruction of Indonesian region showing in
the Mesozoic Kalimantan, East Java and SW Sulawesi is
part of a single microcontinent which then break apart to the present
position. The East Sulawesi is still far away and was part of
Australian Plate.
(Robert Hall, 1996)
Regional Tectonics
(Robert Hall, 1996)
Plate recontruction from 30 – 15 Ma showing the sequence
movement of East Sulawesi to collide with West Sulawesi.
Regional Tectonics
(Robert Hall, 1996)
Plate reconstruction from 10 and 5 Ma showing the event of Banggai Sula collison and timing of the ophilite emplacement to
north of east Sulawesi
Regional Tectonics
Howes (2000)
Howes (2000)
Howes (2000)
Howes (2000)
Howes (2000)
GO TO EAST &GO DEEPER
PRIVATE AND CONFIDENTIAL 75
CADANGAN MIGAS NASIONALSTATUS 01-01-2012
821.44
554.43
402.17
598.53
66.06
969.65
20.23
48.513,685.95
OIL REMAINING RESERVE (MMSTB)PROVEN (P1) = 3,741.33POTENTIAL (P2+P3) = 3,666.90TOTAL (3P) = 7,408.23
GAS REMAINING RESERVE (TSCF)PROVEN (P1) = 103.35POTENTIAL (P2+P3) = 47.35TOTAL (3P) = 150.70
9.28
16.03
2.985.26
50.27
16.652.57 24.14
15.217.48
Oil and Gas Reserve (3P)
108.49
125.29
7.08
1.23
PRIVATE AND CONFIDENTIAL 76
CEKUNGAN MIGAS INDONESIA
Kawasan Barat Indonesia Kawasan Timur Indonesia
• Sumatera, Jawa, Kalimantan Papua, Ceram, Sulawesi Lengan Barat Sulawesi, Bali-NTB Maluku, NTT• Tersier – Kwarter Paleozoikum – Kwarter• Paparan Sunda Paparan Sahul (Northern
Australian Basin• Extensional – Transform Extensional-Compressional-
Transform• Back Arc Basin – Passive Margin Passive – Active Margin• Darat – Laut dangkal Darat – Laut dalam• Matured – Fully Matured Less Matured – Virgin • Infrastruktur Cukup Terbatas• Program EOR – Stratigraphic Trap Program Eksplorasi
Regional Tectonic Framework of Western Indonesia
Koesoemadinata & Pulunggono (1971)
Katili (1981)
North Sumatra Basin
South Sumatra Basin
Central Sumatra Basin
Sedimentary basins of Sumatra Schlumberger (1986)
Samuel & Gultom, 1984
Tectonic setting of Sumatra Darman and Sidi (2000)
From Tectonic to EconomicTectonic
Basin History
Petroleum System
Resources
Economic
Natural Resources Extraction Anatomy
EngineeringScience
Economy NaturalResources
SocialPolitics
The foundation of resources extraction is science. The knowledge of how, where, how much of the natural resources resides at a place.
EngineeringScience
Economy NaturalResources
SocialPolitics
Economic Resources Petroleum System Basin History Tectonic
•
KESIMPULAN TEKTONIK DAN BASIN
• Tektonik lempeng sebagai dasar klasifikasi dan penyebaran cekungan sedimentasi Indonesia (modifikasi klasifikasi dari Dickinson, 1974; Koesoemadinata, 1978).
• Batas lempeng, jenis kerak dan interaksi lempeng secara langsung mengontrol penyebaran cekungan dan juga tingkat kematangan hidrokarbon.
• Cekungan Indonesia dipetakan sebagai cekungan sedimentasi dengan penekanan khusus pada keberadaan hidrokarbon.
• Interpretasi tektonik dilakukan dengan mengacu pada model regional dari rekonstruksi tektonik Asia Tenggara (misalnya MetCalf, 1996); Hall, 2000).
• Kerak bumi diklasifikasikan sebagai (modifikasi Kingston, 1988): 1. Kerak kontinen (Continental crust)2. Rafted remnants3. Active orogens4. Sub continental crust5. Oceanic crust
• Indonesian Tectonic region:
- Sunda Tectonic Region- Central Region (micro-plate dominated)- Australian Region- Pacific Region
• Penarikan batas dan klasifikasi cekungan didasarkan pada: 1. Tektonik lempeng yang mengontrol pembentukan cekungan2. Mekanisme penurunan kerak dan jenis kerak (Basement)3. Struktur geologi dari batuan dasar cekungan (Basement Configuration)4. Evolusi dari basin termasuk struktur dan lingkungan pengendapan (Poly
History Basin)5. Keberadaan hidrokarbon (petroleum system; shows etc.)6. Nilai ekonomis cekungan (portofolio basin; leads and prospect) • Klasifikasi Cekungan Indonesia yang baru menghasilkan 83 cekungan dengan penambahan 23 cekungan baru (proposed); 16 produced, 9 with shows, 45 frontier.
KESIMPULAN TEKTONIK DAN BASIN