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How to plot the strike data to the Rosette diagram (view source)
Revision as of 17:00, 26 March 2019
, 17:00, 26 March 2019no edit summary
On June 16, 2015 Geophysics of University of Indonesia held Field Trip to Karangsambung, and observed strike of claystone at Kalimandala Karangsambung. The result of the observation is:
On June 16, 2015 Geophysics of University of Indonesia held Field Trip to Karangsambung, and observed strike of claystone at Kalimandala Karangsambung. The result of the observation is:
From data above we find the dominant angel at NE quadrant is 39 – 42 degree, and at NW quadrant is 333 – 336 degree. 39 – 42 and 333 – 336 area form angel 60o, to determine the main force we have to find the center of 39 – 42 and 333 – 336 area, it will be 7o (see Figure 7). So the main force come from N7o E and N97o E. There are two main force that have opposite direction.
From data above we find the dominant angel at NE quadrant is 39 – 42 degree, and at NW quadrant is 333–336°. 39–42° and 333–336° area form angel 60°, to determine the main force we have to find the center of 39–42° and 333–336° area, it will be 7° (see Figure 7). So the main force come from N7°E and N97°E. There are two main force that have opposite direction.
[[File:Rosette diagram.png|framed|center|Figure 7. The rosette diagram from the data ]]
[[File:Rosette diagram.png|framed|center|{{Figure number|7|}}The rosette diagram from the data.]]
Two main force compress the rock between them, so the rock become stress. The main force that come from N7o E is resultant force between Eurasian Plate and Pacific Plate. Then the main force that come from N97o E is resulted by Indo-Australia (see [[:File:Gaya utama Indonesia.jpg|Figure 8]]). So, the result of strike measurement in Karangsambung agree with fact.
Two main force compress the rock between them, so the rock become stress. The main force that come from N7o E is resultant force between Eurasian Plate and Pacific Plate. Then the main force that come from N97°E is resulted by Indo-Australia (see [[:File:Gaya utama Indonesia.jpg|Figure 8]]). So, the result of strike measurement in Karangsambung agree with fact.
[[File:Gaya utama Indonesia.jpg|framed|center|Figure 8. Plate tectonic around Indonesia]]
[[File:Gaya utama Indonesia.jpg|framed|center|Figure 8. Plate tectonic around Indonesia]]