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豫西义马煤盆地是华北板块南缘的一个小型中生代含煤盆地,研究它的区域构造特征及演化,有助于对华北板块南缘含煤盆地的认识、预测和开发。本文首次提出並论证了义马煤盆地是沿近东西向的印支期压扭性断裂带发育的断陷盆地,从沉积、构造两方面讨论它的形成发展。
The Yima coal bed in western Henan is a small Mesozoic coal-bearing basin on the southern margin of the North China Plate. The study of its regional tectonic characteristics and evolution is of great help in the understanding, prediction and development of the coal-bearing basins in the southern margin of the North China Plate. This paper presents and demonstrates for the first time that the Yima coal basin is a faulted basin developed along the recent east-west Indosinian compressive-shear fault zone. Its formation and development are discussed from sedimentary and tectonic aspects.