p1 Geologi Struktur Pendahuluan

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Geologi Struktur(Pendahuluan)

Oleh :Irvani

Universitas Bangka Belitung Jurusan Teknik Pertambangan

SKS, Penilaian & Kehadiran :

Banyaknya SKS = 2 SKS (Teori) & 1 SKS (Praktikum)

Penilaian :- Absensi 10%- Tugas 20%- Teori (UTS & UAS) 70%

Kehadiran min. 80% dari 14x perkualiahan


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Referensi :• Van Der Pluijm, B. A. and Marshak, S. 2004. Earth Structure. 2nd Edition. W. W.

Norton & Company, Inc., USA.• Rowland, S.M., Duebendorfer, E.M. and Schiefelbein, I.M. 2007. Structural Analysis

and Synthesis : A Laboratory Course in Structural Geology. 3th Edition. Blacwell Publishing Ltd. Voctoria, Australia.

• Bates, R.L. and Jackson, J.A., 1987. Glossary Geology. 3th Edition. American Geological Institute Elexandria, Virginia.

• Davis, G.H. 1984. Structural Geology of Rocks and Regions. John Wiley & Sons, New York.

• Ragan, D.M. 2009. Structural Geology : An Introduction to Geometrical Techniques. 4th Edition. Cambridge University Press, New York.

• Twiss R.J. And Moores, E.M. 2007. Structural Geology. 2nd Edition. W.H. Freeman and Company, USA.

• Ramsey J. and Huber, M. 1983. The Techniques of Modern Structural Geology : Strain Analysis. Vol. 1. Academic Press, Inc., London.

• Ramsey J. and Huber, M. 1987. The Techniques of Modern Structural Geology : Fold and Fractures. Vol. 2. Academic Press, Inc., London.

• Ramsey J. and Huber, M. 2000. The Techniques of Modern Structural Geology : Applications of Continuum Mechanics in Structural Geology. Vol. 3. Elsevier Academic Press, Inc., California.

• Cox, A. and Hart, R.B. 1986. Plate Tectonics : How It Works. Blacwell Scienific Publications, Inc., California.

• Trouw, R.A.J. and Passchier, C.W. 1996. Microtectonics. Springer – Verlag Berlin Heidelberg, Germany.

• DLL.


Pokok Bahasan :I Pendahuluan (P.1)

II Tektonika & Orogenesa (P.2-3)a. Tektonik lempengb. Orogenesa

III Gaya, Tegasan, Strain & Deformasi (P.4-5)

a. Gaya & Tegasanb. Strain & Deformasi

IV Struktur Geologi (P.6-9)a. Unsur strukturb. Lipatan c. Kekar d. Sesar

V Identifikasi Struk. Geologi (P.10-11)a. Pengukuran dan analisis

struktur geologi b. Analisis geofisika struktur

geologi

VI Aplikasi Struk. Geologi (P.12-13)a. Mineralisasi b. Migasc. Kebencanaan geologi

VII Geologi Struk. Indonesia (P.14)a. Umumb. Sumatra&Jawa c. Bangka Belitung


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DefinisiGeologi Struktur ???- Ilmu yang mempelajari arsitektur kulit bumi.- Structural geology : The branch of geology that

deals with the form, arrangement, and internal structure of the rocks, and especially with the description, representation, and analysis of structures, chiefly on a moderate to small scale(Bates & Jackson, 1987).

- Structural Geology & Tectonics : Structure come from Latin word “struere”, which means “to build”.Tectonics from the Greek word “tektos”, which means “to builder” (the motions and processes that build the crust of the Earth).(Twiss & Moores, 2007)


Monroe & Wicander (2009)

Contoh Struktur Geologi - Lipatan


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Van der Pluijm & Marshak (2004)

Contoh Struktur Geologi - Kekar


Carlson, Plummer & Hammersley (2009)

Contoh Struktur Geologi – Patahan/Sesar


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Aplikasi Geologi Struktur :- Eksplorasi mineral (media mineralisasi)- Eksplorasi batubara (sebaran dan kualitas

batubara)- Eksplorasi migas (perangkap struktur migas)- Geoteknik (bidang sipil dan pertambangan)- Hidrogeologi (porositas sekunder)- Kebencanaan geologi (gempabumi, gerakan

massa, dll)- DLL


Lander oil field, Wyoming

Carlson, Plummer & Hammersley (2009)

Contoh aplikasi – Perangkap Migas


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During the filling of the Vajont reservoir the toe of the slope on Mount Toc was submerged and this precipitated a slide. The mound of debris from the slide is visiblein the central part of the photograph. The very rapid descent of the slide material displaced the water in the reservoir causing a 100 m high wave to overtop the dam wall.

The remains of the town of Longarone after the flood caused by the overtopping of the Vajont dam as a result of the Mount Toc failure. More than 2000 persons were killed in this flood.

The town of Longarone, located downstream of the Vajontdam, before the Mount Toc failure in October 1963.

Hoek (2007) Practical Rock Engineering

Contoh aplikasi – Longsoran pada dam


A wedge failure controlled by intersecting structural features in the rock massforming the bench of an open pit mine.

Hoek (2007) Practical Rock Engineering

Contoh aplikasi – Longsoran membaji


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Vein and disseminated ore deposits result from hot, mineral-rich fl uids thatchemically react with minerals in an igneous intrusion and surrounding rocks, and then transfer elements within a zone around the igneous intrusion. The photo shows a vein deposit containing valuable tungsten and tin minerals in a Portuguese mine.

Reichard, J.S (2011) Environmental Geology

Contoh aplikasi – Mineralisasi


QUEVAUVILLER et al. (2009) Groundwater Monitoring

Fissured, low transmissivity aquifer High transmissivity fractured limestone aquifer

Contoh aplikasi – Porositas sekunder airtanah


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p1 Geologi Struktur Pendahuluan

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