1. Igneous Rocks and Human Life
PELATNAS INTERNATIONAL EARTH SCIENCE OLYMPICS (IESO) 2010
Igneous Rocks and Human Life
Dr. Lucas Donny Setijadji
Universitas Gadjah Mada
Yogyakarta, 02 November 2009

2. Impacts of Igneous Rocks to Human Life
Geohazards: Volcanic hazards
Economic benefits

3. Volcanic Hazards Pyroclastic flow Ash fall Sector collapse Lahar Lava
Gas
Tsunami

4. Block and ash flow deposits or hot avalanche deposits: produced by collapse of lava dome
Merapi, 14 May 2006

5. Unzen Volcano
Kyushu Island,
Japan

6. Lava flow,
Miyakejima, Japan

7. Impacts of SO2 Gas in 2000’s Eruption
Miyakejima, Japan
Impacts of SO2 Gas in 2000’s Eruption

8. Volcano Explosivity Index (Smithsonian Institutions)

9. Largest Volcanic Eruptions as known from distribution of deep-sea tephra
36,000 casualties
92,000 casualties

10. Economic Benefits Building stones Geothermal energy Metallic deposits
Industrial minerals
Agriculture
Tourism

11. Rocks make Earth's Treasures
Man changes rocks
in many ways. Look for ways that rocks are used.

13. Mineralization associated with tectonic settings

14. Sistem hidrotermal-magmatik

15. Metallic Mineral (Ore) Deposits
Classification of ore deposits associated with arc magmatism (Corbett and Leach, 1998)

16. Mineralized Cenozoic magmatic arcs (Carlile and Mitchell, 1994)

17. Indonesian Metallic (Cu-Au) Mineral Deposits (Modified from Carlile and Mitchell, 1994)

18. Metallic Deposits in Sumatra
Crow and van Leeuwen (2005)

19. Batu Hijau Cu-Au Mine, Sumbawa

20. Java Island : Geology and Earth Resources
Trench
Depth contour of subducted slab (km)

21. Dieng geothermal area

22. Geo-Tourism
Ata Caldera, Japan: Bathing on Magma-heated Sand!!!

23. Ciater, West Java