【Key words】 North Qiantang Basin； marine oil shale； sedimentary environment； Late Jurassic-Early Cretaceous；
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As cement, authigenic mineral or vein, dawsonite is found not only in Marine dolomite and oil shale, but also in terrigenous fragmentary rock and coal measures.
片钠铝石作为胶结物、自生矿物或脉体，不仅分布在海相白云岩、油页岩中，而且还广泛分布在陆源碎屑岩及煤系地层中。
When the base of the basin subsided quickly with marine invasion, oil shale was deposited.
当盆地基底沉降速率较快、发生海侵时，主要为油页岩沉积时期；
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