In the Ordos Basin, the major controlling factor for the Early Palaeozoic gas exploration is whether (effective) source rocks are developed.
鄂尔多斯盆地下古生界天然气勘探的制约因素是有效烃源岩的问题。
It was indicated in the paper that the structural setting of the basin sedimentary basement is a major factor controlling coal quality and coal accumulation of Late Triassic in Fujian.
本文研究结果表明：盆地沉积基底的构造条件是控制福建晚三叠世聚煤作用和煤质变化的主要因素。
Elements are mainly terrigenous, clay (or fine muddy matter) is the major factor controlling the concentrations of heavy metals in sediments.
大多数元素以陆源为主，粘土(或细颗粒沉积物)是控制底质金属含量的主要因素。
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