ridge ) ▁triple ▁j unction , ▁the ▁R T J ▁is ▁now ▁believed ▁to ▁be ▁an ▁un stable ▁R R F ▁( ridge - ridge - fault ) ▁triple ▁j unction ▁in ▁which ▁the ▁axis ▁of ▁the ▁C IR ▁is ▁offset ▁east ward ▁by ▁ 1 4   km / my r ▁because ▁of ▁differences ▁in ▁spread ing ▁rates ▁between ▁the ▁SE IR ▁and ▁C IR . ▁ ▁This ▁is ▁a ▁configuration ▁similar ▁to ▁that ▁of ▁the ▁Gal ap ag os ▁Tri ple ▁J unction ▁in ▁the ▁east ▁Pacific . ▁Each ▁time ▁the ▁R T J ▁offset ▁east ward ▁a ▁new ▁segment ▁is ▁added ▁to ▁C IR . ▁resulting ▁in ▁a ▁constant ▁length ▁for ▁the ▁SE IR ▁while ▁C IR ▁constantly ▁length ens . ▁ ▁Sp reading ▁rates ▁in ▁the ▁SW IR , ▁in ▁contrast , ▁is ▁inter mitt ent ▁and ▁very ▁slow , ▁but ▁the ▁extension ▁of ▁the ▁pl ates ▁in ▁the ▁SE IR ▁and ▁C IR ▁causes ▁constant ▁length ening ▁of ▁the ▁SW IR ▁near ▁the ▁R T J . ▁ ▁References ▁ ▁Notes ▁ ▁S ources ▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁ ▁▁▁▁▁▁ ▁Category : Tri ple ▁j unction s ▁Category : Pl ate ▁t ect on ics <0x0A> </s> ▁Sky line ▁High ▁School ▁can ▁refer ▁to : ▁ ▁Sky line ▁High ▁School ▁( Al abama ), ▁in ▁Scot ts bor o ▁Sky line ▁High ▁School ▁( A rizona ), ▁in ▁M esa ▁Sky line ▁High ▁School ▁( L emon ▁Gro ve , ▁California ) ▁Sky line ▁High ▁School ▁( O ak land , ▁California