新生界、中生界、上古生界、下古生界和元古界分别占总探明地质储量38%、17%、30 %、13%和2 %。

The proved reserves in Cenozoic, Mesozoic, Upper Palaeozoic, Lower Palaeozoic, Proterozoic respectively are 38%, 17%, 30%, 13% and 2% in total.

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钻井揭示，中—下侏罗统为中生界主要烃源岩。

According to the drilling results, the middle-lower Jurassic can be considered the main Mesozoic source rock.

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在整个地质历史中，有两个白云岩分布的高峰期，即中生界和下古生界。

There might be two major stages in dolomite distribution throughout geologic history of Tarim basin, that is, Mesozoic and Early Paleozoic.

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