地质纪年是什么年代,那时的地球是什么样子的?

来源:学生作业帮助网 编辑:作业帮 时间:2024/08/11 12:49:01
xZ[sG+~ܭ"qg*Wl.e˕]S BB肐F0#l$sy_spPLO}^VYe4L#lv6c]:m{w:ٙe*߱z7?~믟r7Ͽë >z? |i%igL}4,s0"2K̅٩X]tn.[m12qe{3=kktq,=1{,dqhvSfpN#3ع$^nxk S9' r$dfŒH< ⤱h[>;"\Uj9W+skVc{Ш> ݾpY>h >5Eػ]gm qû`5[x5n`Wjp%Yo 8=nxl˷->SvN>_FAq35a7[ ]0;u+f#JB},(@J`qiֱՌErWn}+xB[a XEvu~ ﱫ%Vo~86h@~O繼zc[ONLY!@R, ^]<Eةkvt'$V9g j/ӺF)~`ni//Xj/G5ғFw k؏]vl x ÀA*I 렎׻FbQ̗UI6I_HwsFdH~^Z|sǘ tΛ 싼;2ֽʠ6kjY9 61F[{`˚/5!\\3Y5B;~ 0=9q mFmƖF'X Q)-9Ԇ*1.Y5:վ(RÄ*~Nm-dKʮO`a@ BdRqb*DZ4{sAQVIhU٪Yc]ajp)PLi+ ˁb }4N8yI*g_ׇg1jt T7TSxz!ZVJ0'Tv#/DOcEX1쏷)PG qF%TFZn6ZX7SŮ⇟SՎ4z+sL|bGqlq@ɓ1Mm+riv 0D g11w2.[gD&A@FMG=Sw/.dw= %&?o°6:c^jyR:tT`ў.V 5Ljm<`Ƕ)ttaEsC+`= )W8q^ NƎmItGyӱփBQ pJ&Nu9R*g nŽ_/یx,ILWA}b>I7>fZyW򊓟1[yf,49ǔi[HyKCQ4FCiu(DJ LC@g CLemLx>:x^ JdH)&N1_Hrmx: ӎ#ᭇ0ژEt2!ˠ41/tRb@߿ hJ"Ia E,иSX:6&եS*@PÚ;Ȁfw =Pt0@-m@hkxQF}.PLx.e.DC"a*^ث.N>|1'8!`fo703T5d^`m=ߝ"e E/2|ʷWIfeשF|Mhx@ڜʃ/],]ay3dr9™_9@9|K[x'hO ")ȿ2ƕ1~ZnN8ZtWSJir=㧑vTiv/U&&ž25+=?J',J VhV<޳wh &LpOmE[IP:C9ioKB+F :UT&@IZ<6@Ur8ՋҝuUI8DKSw7m~n5 +pD@,+_YCfVYF]h 9f栄g27Fy JPB战dX?]s$ƚy. QûHn=ڱ kD N75^/py