Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: Zvitsuwa zvacho chikamu chechimiro chenyika chinozivikanwa seIzu-Bonin-Mariana Arc system, uye zvinobva pamakore ane mamiriyoni 5 okuberekwa kuchamhembe kusvika pamakore ane mamiriyoni 30 okuberekwa kumaodzanyemba (Guam). Zvitsuwa izvi zvakagadzirwa nemuganhu wokumadokero wePacific Plate uchifamba uchienda kumadokero uye uchidzika pasi peMariana Plate, nzvimbo ine makomo anoputika zvikuru pasi pano. Iyi nharaunda yokudonha, kumabvazuva kwechitsuwa ichi, inoumba Mariana Trench, chikamu chakadzika zvikurusa chemakungwa ePasi nechikamu chakaderera zvikurusa chechiso chepasi. Munharaunda iyi, maererano nedzidziso yenyika, mvura yakabatwa mukukanganisa kwakakura kwePacific Plate se serpentinite, inopisa nekupisa kwakadzika kwakadzika panguva yekunyura kwayo, kumanikidza kubva kumhepo inowedzera kunoguma mune hydrothermal chiitiko munzvimbo uye chiitiko chemakomo chakaumba Mariana Islands. Zvitsuwa zvese, kunze kweFarallon de Medinilla neUrakas kana Farallon de Pajaros (muboka rekuchamhembe), zvine masango zvakanyanya kana zvishoma, uye zvinomera zvakawandisa, zvakafanana neizvo zveCarolines uye zvakare zvePhilippines, kubva uko marudzi emiti akaunzwa. Nemhaka younyoro hwevhu cryptogams yakawanda, sezvakangoitawo marudzi mazhinjisa etsanga. Pazvitsuwa zvakawanda pane mvura yakawanda.  Mubvunzo: Zvinhu zvipi zvinowanikwa zvakawanda muzvitsuwa zvakawanda?
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