摘要
采用方格纸法对四川省从震旦系至第四系的地层种类、面积以及分布进行了量算,得出了四川省现在地层的有关数据:第四系地层面积为26304 15km2,第三系地层面积为32887 54km2,白垩系地层面积为51096 28km2,侏罗系地层面积为84251 79km2,三迭系地层面积为1967 58km2,二迭系地层面积为37593 55km2,石炭系地层面积为6451 74km2,泥盆系地层面积为13621 92km2,志留系地层面积为13419 40km2,奥陶系地层面积为5549 18km2,寒武系地层面积为4914 69km2,震旦系地层面积为9282 76km2。本文结合地质构造进行了讨论。
The types,areas and distribution of of layer in Sichuan were analyzed with the method of the square paper.The layer area for Quaternary Period was 26?304.15?km^2,32?887.54?km^2 for Tertiary Period,51?096.28?km^2 for Cretaceous Porphyry,84?251.79?km^2 for Jurassic Period,1?967.58?km^2 for Triassic Period,37?593.55?km^2 for Permian Period,6?451.74?km^2 for Carboniferous Period,13?621.92?km^2 for Devonian Period,13?419.40?km^2 for Silurian Period,5?549.18?km^2 for Ordovician Period,4?914.69?km^2 for Cambrian e...
出处
《西南农业学报》
CSCD
2003年第S1期136-137,共2页
Southwest China Journal of Agricultural Sciences
关键词
地质
地层面积
地层分布
geological
layer spreads
layer area