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The tectonics processes in Indonesia formed major structures in Indonesia. The most prominent fault in the west of Indonesia is the Semangko Fault or the Great Sumatran Fault, a dextral strike-slip fault along Sumatra Island (about 1,900 km). The formation of this fault zone is related to the subduction zone in the west of Sumatra.
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Solidified lava flow in Hawaii Sedimentary layers in Badlands National Park, South Dakota Metamorphic rock, Nunavut, Canada. Geology (from Ancient Greek γῆ (gê) 'earth' and λoγία () 'study of, discourse') [1] [2] is a branch of natural science concerned with the Earth and other astronomical objects, the rocks of which they are composed, and the processes by which they change over time. [3]
This is enabled by Earth being an ocean world, the only one in the Solar System sustaining liquid surface water. Almost all of Earth's water is contained in its global ocean, covering 70.8% of Earth's crust. The remaining 29.2% of Earth's crust is land, most of which is located in the form of continental landmasses within Earth's land hemisphere.
Banda Arc tectonic map. The Banda Arc (main arc, Inner, and Outer) is a dual chain of islands in eastern Indonesia that is around 2,300 km long. It is the result of the collision of a continent and an intra-oceanic island arc.
Particularly for Indonesia, Simkin and Siebert used a catalogue of active volcanoes from the International Association of Volcanology and Chemistry of the Earth's Interior publication series. [ b ] The Simkin and Siebert list is the most complete list of volcanoes in Indonesia, but the accuracy of the record varies from one region to another in ...
From 74 to 58 kyr, Earth transitioned from interglacial marine isotope stage (MIS) 5 to glacial MIS 4, experiencing cooling and glacial expansion. [34] [35] This transition is a part of Pleistocene interglacial-glacial cycle driven by variations in the earth's orbit. [36] Ocean temperature cooled by 0.9 °C (1.6 °F). [37]
Hayes, G.P. et al. 2013, Seismicity of the Earth 1900–2012 Sumatra and vicinity: USGS Open-File Report 2010–1083-L, scale 1:6,000,000; Jones, E.S. et al. 2014, Seismicity of the Earth 1900–2012 Java and vicinity: USGS Open-File Report 2010–1083-N, 1 sheet, scale 1:5,000,000, Seismicity of the Earth 1900–2012 Java and vicinity