Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Sezvo mahwendefa epasi anotama, gungwa rinowira pasi pemipendero yokutanga yemahwendefa pamiganhu inowirirana. Panguva imwe cheteyo, kubuda kwechinhu chomumhepo pamiganhu yakasiyana kunogadzira makomo ari pakati pegungwa. Kubatanidzwa kwezvinhu izvi kunoita kuti gungwa ridzokere mumatenga. Nemhaka yokudzokorora uku, chikamu chikuru chepasi pegungwa chine makore asingasviki 100 Ma. Gungwa rekare kupfuura ose rinowanikwa kumadokero kwePacific uye rinofungidzirwa kuva nemakore anenge 200 Ma. Mukuenzanisa, gwenzi rekare zvikuru renyika rakanyorwa makore 4030 Ma. Mahwendefa makuru manomwe ndiwo Pacific, North American, Eurasian, African, Antarctic, Indo-Australian, uye South American. Mamwe mahwendefa anozivikanwa anosanganisira Mahwendefa eArabia, Mahwendefa eCaribbean, Mahwendefa eNazca kumahombekombe ekumadokero kweSouth America uye Mahwendefa eScotia kumaodzanyemba kweAtlantic Ocean. Plate yokuAustralia yakabatana nePlate yokuIndia pakati pemakore 50 ne55 Mya. Mahwendefa anokurumidza kufamba ndiwo mahwendefa egungwa, neCocos Plate ichifambira mberi pamwero we75 mm / a (3.0 in / gore) uye Pacific Plate ichifamba 52<unk>69 mm / a (2.0<unk>2.7 in / gore). Kune rumwe rutivi, ndiro inononoka kufamba ndiro Eurasian Plate, ichipfuurira pamwero wenguva dzose we 21 mm/a (0.83 in/year).  Mubvunzo: Ndedzipi ndiro dzinofamba nokukurumidza zvikuru?
mahwendefa egungwa