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===Tomuru Formation===
The Tomuru Formation is distributed in the [[Iriomote Island|Iriomote]] and [[Ishigaki Island|Ishigaki]] Islands of the Yaeyama Islands, Southern Ryukyu.<ref name=":5" /><ref name=":14">{{cite journal |last1=Nishimura |first1=Y. |title=Geotectonic subdivision and areal extent of the Sangun belt, Inner Zone of Southwest Japan |journal=Journal of Metamorphic Geology |date=1998 |volume=16 |issue=1 |pages=129–140 |doi=10.1111/j.1525-1314.1998.00059.x|s2cid=128766454 }}</ref><ref name=":15">{{cite journal|last1=Nakagawa|first1= H.|last2= Doi|first2= N.|last3= Shirao|first3= M.|last4= Araki|first4=Y.|date=1982|title= Geology of Ishigaki-jima and Iriomote-jima Yaeyama Gunto, Ryukyu Islands|journal= Contributions from the Institute of Geology and Paleontology, Tohoku University|volume= 84|pages=1–22}}</ref> The formation has an age of 220–190 [[megaannum|Ma]] (million years ago) (Late [[Triassic]]-Early [[Jurassic]]) and comprises [[ultramafic rock]]s and high pressure/temperature (P/T) metamorphic rocks, i.e., metagabbro and [[mafic]], [[Siliceous rock|siliceous]], and pelitic [[schist]]s.<ref name=":14" /><ref name=":16">{{cite book|last1=Miyazaki|first1= K.|last2= Ozaki|first2= M.|last3= Saito|first3= M.|last4= Toshimitsu|first4= S.|date=2016|chapter=The Kyushu-Ryukyu Arc |title=The geology of Japan|pages=139–174|doi=10.1144/GOJ.6|editor-first1=T.|editor-last1= Moreno|editor-first2= S. |editor-last2=Wallis|editor-first3= T. |editor-last3=Kojima|editor-first4=W. |editor-last4=Gibbons|isbn=9781862397064|publisher=The Geological Society}}</ref>
===Fusaki Formation===
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