INDONESIA....Past Time...Present Time
Base on the conditions, let's try to learn from two of different literatures about how is the archipelago forming process and why Indonesia have this uniqueness of nature plate which other countries rarely to have it.
An old-dates theory mentioned that the land of South Asia formning process caused by moving process the child of Hindia continent to north direction and collide with it, and then, the impact is the Himalaya mountain creation. As the story goes, this process occur in 20 -36 million years ago and made the south land drawn to the ocean and then mounted as the islands cluster as the chain-link of volcano.
Base on modern literature, the forming of Indonesia archipelago related with tectotic plate theory, which, it is explain about the moving of earth skin and emerge the earth surface as seems as now. The moving started when the bottom ocean plate miring down caused by pressure from the thicker and harder continent plate and form the ocean riverbed. The impact for its moving has made Indonesia high risk for earthquake but rich for mineral resources.
Indonesia located at the meeting of four big plate of the world ( Eurasia, Indo-Australia, Filiphina and Pacific plate ) which the plates always move in 5 - 9 cm in every year. The plates mass moving will earn big energy and give an impact not only for volcano activities and tectonic in Indonesia, but others phenomenons by the energy.
By the subduction moving between two plates engendering volcano suites and ocean moat, and so with the subduction between Indo-Australia and Eurosia plates engendering volcano suite in Sumatera ( Barisan Hill ) and Java, Bali, Lombok, Java moat ( Sunda ). Tectonic plate will always moving until hard collide or friction occur and cause earthquake, tsunami and increasing the magma appear to earth surface. Some of volcano are at the bottom of the ocean and invisible, and even so, Indonesia is the meeting point of two chain-link an active volcano ( Ring of Fire ) and have a dozen of active fault that spread in the Indonesia area. From 3 types of plate border ( Convergen, Divergen and Shear ), Indonesia archipelago formed as the converge plate border which have collide between the south of Indo-Australia plate, Pacific plate from east and Asia plate from north.
And at the end, Let's be smart and wise personal to taking a good care in maximizing the natural resources in every part of the world. It is not only the world heritage, especially Indonesia, but the place where human being to live on it.
Please read other Indonesia stories below :
1. The Indonesian Islands History
2. The Great GrandParents of Indonesia
3. The History Name of Indonesia