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近一、二年来,有关河南太原群和上石盒子组含煤建造中发现海绵岩的问题曾有过报导,但都限于局部地区的某一地层组段。在原有工作的基础上,我们于1980年对豫北焦作及豫东永城地区太原群和禹县、登封、临汝及永城等地的上石盒子组中的海绵岩进行了较为系统的考察与研究。本文拟对这些海绵岩的层位、产状、特征及分布范围加以阐述,并对上石盒子组的沉积环境进行探讨。
In the past one or two years, there have been reports on the discovery of sponge rock in the coal-bearing construction of the Taiyuan Group and the Upper Shihezi Formation in Henan Province, but they are all limited to a group of formation strata in some areas. Based on the original work, we conducted a systematic study on sponge rocks in the Upper Shihezi Formation in Yubei, Yongchu, Yuhe, and the upper Shihezi Formation in Yu County, Dengfeng, Linru and Yongcheng in 1980 Study and research. This paper intends to elaborate the horizon, occurrence, characteristics and distribution of these sponge rocks, and discuss the sedimentary environment of the Upper Shihezi Formation.