The Ridge yog lub npe hu ua nws, thiab lub npe tau lees paub thaum lub Plaub Hlis 1987 los ntawm SCUFN (raws li lub cev lub npe qub, Lub Tsev Haujlwm Saib Xyuas Kev Ua Haujlwm ntawm Lub Npe thiab Nomenclature ntawm Dej Hiav Txwv Hauv qab nta). Lub voj voog yog qhov qeeb tshaj plaws uas paub txog kev sib kis hauv ntiaj teb, nrog tus nqi tsawg dua ib centimeter ib xyoos.
Puas yog lub mar ua qeeb nruab nrab lossis nrawm nrawm?
Piv txwv li, nrawm nrawm nrawm, xws li East Pacific Rise (EPR), pom cov duab zoo nkauj nrog cov magmatism ntau dua, thaum maj mam kis ridges, xws li Mid-Atlantic Ridge(MAR) thiab Southwest Indian Ridge (SWIR), nthuav qhia hnyav hnyav axial kwj ha thiab loj variations nyob rau hauv volcanic …
Qhov twg Mid Oceanic Ridge nthuav dav tshaj plaws?
Kev sib kis ceev tshaj plaws niaj hnub no hauv hiav txwv, ~ 150 km / Myr, tshwm sim nyob ntawm Pacific-Nazca ciam teb ntawm Easter thiab Juan Fernandez microplates.
Puas yog Mid-Atlantic Ridge kis qeeb?
Lub Mid-Atlantic Ridge khiav mus rau nruab nrab ntawm Dej Hiav Txwv Atlantic. Nws sib nrug ntawm tus nqi ntawm 2 mus rau 5 cm hauv ib xyoos, thiab ntawm cov no sib kis qeeb qeeb, lub ridge muaj qhov sib sib zog nqus rift hav raws nws crest.
Ntiaj teb twg muaj tus nqi qeeb tshaj plaws?
Lub Arctic Ridge muaj qhov qeeb tshaj plaws (tsawg dua 2.5 cm / xyoo), thiab East Pacific Rise ze Easter Island, nyob rau sab qab teb Pacific txog 3,400 km sab hnub poob. ntawm Chile, muaj qhov ceev tshaj plaws (ntau tshaj 15 cm / xyoo).
