波兰国家地质研究所TAndrzej Guszyński团队，在研究波兰南部二叠纪盆地的巨型多边形硬石膏脊中取得新进展。这一研究成果于2024年10月30日发表在国际顶尖学术期刊《地质学》上。

据介绍，研究人员在波兰南部二叠纪盆地的东北缘，发现了直径为2-3km的巨型多边形硬石膏脊。

研究人员称，该巨型多边形硬石膏脊的主脊高度可达80-120m，次级脊高度＜40m，研究人员将次级脊细分为直径约1km的小单元。

结果显示，石膏转化为硬石膏前，脊高出约40%。地震和重力调查都表明，在数千平方公里的区域内存在类似的构造。

研究结果提出石膏底辟作用和自由水对流两种假说，来解释它们的形成。

附：英文原文

Title: Giant polygonal anhydrite ridges in the Southern Permian Basin

Author: Andrzej Guszyński, Marek Jarosiński, Marcin Dbrowski, Tadeusz Peryt

Issue&Volume: 2024-10-30

Abstract: Giant polygonal anhydrite ridges with diameters of 23 km have been identified in the NE margin of the Southern Permian Basin in Poland. The primary ridges reach heights of 80-120 m, and secondary ridges, <40 m in height, subdivide them into smaller cells ～1 km in diameter. The ridges were up to ～40% higher before the alteration of gypsum to anhydrite. Both seismic and gravity surveys indicate the presence of similar structures over an area of thousands of square kilometers. Two alternative hypotheses, gypsum diapirism and free water convection, are proposed to explain their formation.

DOI: 10.1130/G52269.1

Source: https://pubs.geoscienceworld.org/gsa/geology/article-abstract/doi/10.1130/G52269.1/649799/Giant-polygonal-anhydrite-ridges-in-the-SouthernredirectedFrom=fulltext