根据川黔地区海相上古生界未经蚀变的92个样品的锶同位素测试数据，建立了该地区晚古生代锶同位素组成曲线。
This paper sets up a curve of the strontium isotopic composition of the Late Paleozoic based on 92 unaltered marine carbonate samples collected from Sichuan and Guizhou.
在对其进行的首轮油气勘探中发现了中生界大型油田，在二轮普查中对古生代的研究取得了突破和进展。
The large_scale oilfield of the Mesozoic has been found in the first cycle of exploration. In the second cycle, the study on the Paleozoic has achieved breakthrough and high_speed progress.
区内下古生界烃源岩经历了两次成油过程，第一次发生在加里东运动前的盆地沉降阶段，第二次发生在加里东运动后晚古生代陆表海沉积阶段。
The first was in the basin subsidence stage that was prior to the Caledonian movement. The second took place in the marginal sea deposition stage after the Caledonian movement.
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