Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Tsibiran suna cikin tsarin ilimin ƙasa da aka sani da Izu-Bonin-Mariana Arc system, kuma shekarunsu sun fara daga shekaru miliyan 5 a arewa zuwa shekaru miliyan 30 a kudu (Guam). Rukunin tsibirin ya tashi ne sakamakon gefen yamma na Pacific Plate yana motsawa zuwa yamma kuma yana nutsewa ƙasa da farantin Mariana, wani yanki wanda shine mafi yawan aikin dutsen mai fitad da wuta a kan iyakar duniya. Wannan yanki na subduction, a gabashin tsibirin tsibirin, ya zama sanannun Mariana Trench, mafi zurfi na teku na duniya da kuma mafi ƙasƙanci na farfajiyar duniya. A cikin wannan yanki, bisa ga ka'idar ilimin ƙasa, ruwan da aka kama a cikin faɗakarwar faɗakarwa na Pacific Plate a matsayin serpentinite, yana da zafi ta hanyar yawan zafin jiki na zurfin lokacin da yake nutsewa, matsin lamba daga yaduwar tururi yana haifar da aikin hydrothermal a yankin da aikin dutsen mai fitad da wuta wanda ya kafa tsibirin Mariana. Duk tsibiran, ban da Farallon de Medinilla da Uracas ko Farallon de Pajaros (a cikin rukunin arewa), suna da yawa ko kaɗan, kuma ciyayi suna da yawa, suna kama da na Carolines da kuma na Philippines, daga inda aka gabatar da nau'in tsire-tsire. Saboda danshi na ƙasa cryptogams suna da yawa, kamar yadda yawancin ciyawa suke. A yawancin tsibiran akwai wadataccen ruwa.  Tambaya: Menene ke da yawa a yawancin tsibirai?
samar da ruwa