《地球化学》——作业.doc

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1、地壳非金属元素丰度表(10-6)元素BCNOFSiPSClAsSeBrTeI大陆上地壳15324083056166000015003001421.5501.601.4大陆中地壳17000524523000100001823.164000大陆下地壳858834067559100010002002161.31400.2800.14大陆地壳整体1819906047.2602495000020003001793.113310.0050.8大洋地壳400000000116000.0030体现：◆奇偶规律：原子序数为偶数的元素其丰度大大高于相

2、邻原子序数为奇数的丰度地壳非金属元素丰度表(除Si元素)(10-6)元素BCNOFPSClAsSeBrTeI大陆上地壳15324083056115003001421.5501.601.4大陆中地壳17000524100001823.164000大陆下地壳858834067510002002161.31400.2800.14大陆地壳整体1819906047.260220003001793.113310.0050.8大洋地壳40000000116000.0030体现：◆递减规律：原子序数较低的的范围内，元素丰度随原子序数增大呈指数递减

3、。◆奇偶规律：原子序数为偶数的元素其丰度大大高于相邻原子序数为奇数的丰度地壳镧系过渡元素丰度表(10-6)元素LaCePrNdSmEuGdTbDyHoErTmYbLu大陆上地壳30647.1264.50.883.80.643.50.82.30.332.20.32大陆中地壳17455.8244.41.540.583.80.822.302.30.41大陆下地壳8202.6112.81.13.10.483.10.681.90.321.90.25大陆地壳整体18425203.91.23.60.563.50.762.20.322.20.33

4、大洋地壳3.711.51.8103.31.34.60.875.71.73.70.543.70.56体现：◆奇偶规律：原子序数为偶数的元素其丰度大大高于相邻原子序数为奇数的丰度元素ONa2OMgOAl2O3SiO2P2O5K2OCaOTi2OMnOFeO大陆上地壳3.90%2.20%15.20%66.00%0.15%3.40%4.20%0.65%0.08%4.50%大陆中地壳3.20%3.40%15.50%52.30%0.10%2.01%5.10%0.70%0.10%6.40%大陆下地壳2.60%7.10%16.60%59.10%0

5、.10%0.60%9.40%0.80%0.10%8.14%大陆地壳整体47.20%3.20%4.40%15.80%49.50%0.20%1.88%6.40%0.70%0.14%6.60%大洋地壳2.80%7.70%16.00%0.14%11.30%1.50%0.13%10.50%