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在秦昆接合部造山带发现典型的钙质风暴岩主要分布于羊曲—苦海—赛什塘构造混杂带西北侧,由介壳灰岩及泥晶灰岩组成,发育典型粒序层理、丘状交错层理。其发育时期为中三叠世安尼期,为河卡山前陆盆地晚期磨拉石阶段的产物,风暴岩可作为地层划分对比的等时标志,为进一步解剖秦昆接合部造山带三叠纪地层、盆地分析提供了可靠的基础依据。
The typical calcareous storm rocks found in the orogenic belt of the Qin-Kun Junction are mainly distributed in the northwestern side of the Yangqu-Odyssey-Saishitang tectonic mixed belt and are composed of shell-shaped limestone and limestone, with typical grained bedding and mound Staggered layers. The period of its development is the Middle Triassic Anisian period, which is the product of late molasse stage in the Hekashan foreland basin. The storm rock can be used as the isochronal marker for stratigraphic division and contrast. In order to further dissect the Triassic Stratum, basin analysis provides a reliable basis for the foundation.