下古生界烃源岩在西部坡折带及南北隆起区现今仍处于有效生油窗内（镜质组反射率小于1.3 % ）。

Nowadays, at the western slope and the northern and southern uplifts the Lower Paleozoic source formations are still in the active oil generation Rold ( R o< 1.3%).

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黑龙江省一些中—新生代断陷盆地内，中、上侏罗统、下白垩统及第三系砾岩含古砂金较为普遍。

In some of the faulted basins of the Mesozoic to Cenozoic ages in Heilongjiang Province, the Middle Upper Jurassic, Lower Cretaceous and Teritary auriferous conglomerate are most widespread.

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