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1、(440)1.2.3.4.5.6.7.8.9.a10.(20)1()F0.01 110(10)2Eu(5)3AAD BC BE(5)。0.516 0.514 0312 0*510 0.508 5 4 3 2 1 0 in (540)1.2.3.4.5.67.S Eu 8.9.10.Rb-Sr(20)1D/H18O/16O(5)2Rb-SrSm-Nc87Rb/86Sr143Sm/44Nd(5)3(3)。(10)A1234()56OSP7iKD(T,P)h“)Xi Kh“)iiKDXi()/Xi()8FA2FK2WK 9P,PodPt Pdt 10.a/aA+bB2 aA+bB Bab12=R/R
2、B(A/B/)=(仝)/(生)Ai B1 0 0.5 1.0 F 1FDD1F D1F23Eu23Eu2Ca2Ca,Eu3A(CHUR)0.5068 143Nd/144NdAD0.5126BE2.9 X 109BCNd B1234()OSP56()(a)Kuw KuTP 8 Z20A 10%A 9PP07S Eu Eu/Eu EUN Sm Gd,(2)N EINSmGd 1tit87Sr(泸)。86Srt=Pdt 1087Sr 87Sr 87Rb()=()。异 心七1)Sr Sr Sr 87Sr(遵)87Rb 87Sr)ott(3)。Sr 87Sr86Srt(RbSr87Sr 87 Rby=a+bX87Sr 87Rb 87Sr a ba=()。b=(et 1)Sr(87Sr86Sr)oRb/Sr87Rb87Sr 1D/H180/160287Sr/86Sr143Nd/144Nd87Rb/86Sr143Sm/44Nd(87Rb/86Sr 87Sr/86Sr)(143Sm/44Nd143Nd/144Nd)87Sr/86Sr43Nd/144Nd3A.1.B.REEREEHREE(T-).CDREE.DEu.Ca.E.Eu,Eu.F.