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宜宾市江安县的怡乐镇的硅化木群主要赋存于侏罗系上统蓬莱镇组下段的灰黄色钙质长石砂岩中,根据初步显微观察,硅化木为保存次生木质部的一种松柏类植物。江安硅化木群在研究长江流域古气候、古地理、古生态演化和地壳变动等具有重要的价值,当前保护现状令人担忧。本文分析了该地质遗迹资源的特征,研究分析了其保护意义,提出了相应的保护策略建议。
The silicified wood group of Yile Town in Jiang’an County of Yibin City mainly occurs in the limestone calcareous feldspathic sandstone of the lower Jurassic Penglaizhen Formation. According to the preliminary microscopic observation, the silicified wood is one of the preserved secondary xylem Coniferous plants. Jiang’an Silicified Wood Group is of great value in studying the paleoclimate, palaeogeography, paleoecological evolution and crustal movement in the Yangtze River basin. The current status of protection is worrying. This paper analyzes the characteristics of the geological heritage resources, research and analysis of the significance of its protection, and put forward the corresponding protection strategy recommendations.