Chapter 1. Volcanoes

Question Click on two locations you would expect to find andesitic volcanism.

cWt569BogbNVLL7cwjOFTmu72e+HIEK3nXFw4GcIU/iLfECwJD/tzk9JdSHl0DmDPuH/N+3WnRYGDk2qYNNlsp65KeTtaLoyG72dZdl+d2QeikqtLVYzoyyauMebujdvScye3M+MfWfpqhq9a8WETqxVDlVkArQ3Hu5EBzcNSws= {"title":"selection","description":"Correct. This is a convergent plate boundary with subduction with andesitic magma.","type":"correct","color":"#99cc00","code":"[{\"shape\":\"poly\",\"coords\":\"11,77,81,73,74,109,2,105\"},{\"shape\":\"poly\",\"coords\":\"154,136,131,184,160,172,197,192,225,174,259,189,278,201,298,205,286,238,305,252,321,183,298,180,292,194,283,172,227,156,209,156,228,119,225,145,244,146,236,108,270,61,279,37,266,27,211,104,188,124,196,145,194,174,173,168,161,138\"},{\"shape\":\"poly\",\"coords\":\"395,101,415,90,384,50,374,55\"},{\"shape\":\"poly\",\"coords\":\"368,37,369,30,346,16,327,45,312,58,285,52,283,65,310,70,335,58,348,43\"},{\"shape\":\"poly\",\"coords\":\"420,123,416,134,455,154,461,159,463,182,477,198,473,226,469,256,472,274,493,290,498,278,481,264,488,230,495,195,474,174,503,140,492,122,478,134,489,153,476,151,443,132\"},{\"shape\":\"poly\",\"coords\":\"547,271,542,268,551,301,571,281,555,269\"}]"} {"title":"Hotspot","description":"These volcanoes are not near a trench indicating a convergent plate boundary, so they are likely formed by a hotspot.\n","type":"incorrect","color":"#993300","code":"[{\"shape\":\"poly\",\"coords\":\"306,117,309,132,345,140,346,122\"},{\"shape\":\"circle\",\"coords\":\"451,166,8\"},{\"shape\":\"circle\",\"coords\":\"465,224,10\"},{\"shape\":\"circle\",\"coords\":\"572,115,10\"},{\"shape\":\"circle\",\"coords\":\"552,87,14\"},{\"shape\":\"circle\",\"coords\":\"569,25,17\"}]"} {"title":"Divergent","description":"These volcanoes are formed where there is extension.\n","type":"incorrect","color":"#333300","code":"[{\"shape\":\"poly\",\"coords\":\"52,109,67,111,88,150,81,174,74,197,57,184,38,189,43,165,55,162,51,140,58,130\"},{\"shape\":\"poly\",\"coords\":\"419,111,421,134,410,134,397,114,417,99\"}]"}

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