用英语简单介绍一下Hawaii……最好再加上点去哪得好处-查字典问答网
分类选择

来自孙远辉的问题

  用英语简单介绍一下Hawaii……最好再加上点去哪得好处

  用英语简单介绍一下Hawaii……

  最好再加上点去哪得好处

1回答
2020-06-1507:06
我要回答
提示:回答问题需要登录哦!
罗玉臣

  Hawaiihaseightislandsandislocatedinthemiddleofthepacificocean.Thewholegroupofislandsisrisingduetovolcanicactivity.

  RegardingthetotalheightofHawaii'shighestpointfromseabottom,Hawaiicanbeconsideredthehighestrockmassintheworld(9000meters).

  Formillionofyearstheoceanbedofthepacifichasbeenmovingoverafunnelofveryhotmagma.Fromgreatdepthsubsurfacelavawellsup.Thelavaismountingupthevolcanicislandsuntilabovetheoceansurface.ThatwaytheHawaiianIslandsemerged.Thepreconditionforthetheoryisthatthehot-spotdoesnotmoveatanytime.TheimmoblilityoftheHot-Spotappliedasafixedpointforgeology.

  TheislandchainofHawaii-3000kilometersnorthwestofthemainisland-ischangingitsdirectiontothenorth.Thisbendinthedirectionistotracebackforthefactthatpacificoceanbedischangingitsdirection.Thistheoryisbasedofmagneticmineralsinsideofbasalt.Thebasaltwasarisedfrommagma,thatwasdescendedfromtheHot-Spot.Insideoftheliquidmagmathemineralswerealignedinthedirectionofthemagneticfieldoftheearth.Thealignmentofthemineralsinsidetherockwaschangingoverandover

2020-06-15 07:09:23
大家都在问
最新问答