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安岳恐龙化石群自然保护区迎来新改变

2017-08-31 02:45:38   中国青年网

保护区化石藏量丰富

开展地质旅游优势大

四川安岳恐龙化石群自然保护区于1999年1月由四川省人民政府确定为省级自然保护区,类型为自然遗迹。保护区在中国动物地理区划中归属东洋界华中地区西部山地高原亚区,是以保护安岳马门溪龙为主的恐龙化石以及其他古生物化石和化石遗址的地质遗迹类自然保护区。

保护区呈“口”字形,中间为206省道所分割,东西直线最长12.93公里,南北直线长达7.54公里。保护区内海拔最低处为周礼镇龙兴村附近,海拔300米,最高处为南部的南薰乡鱼鳞村附近的无名山脊,海拔506.5米,区内垂直高差206.5米。

保护区内主要是以化石资源、生物资源为主。据调查,保护区内埋藏相当丰富、绝大部分化石为蜥脚类的单一种,即马门溪龙,此外还有肉食龙、龟化石、鱼类化石和遗迹化石。仅在龙桥乡的马蹄寺和隆家崖,化石埋藏量就相当丰富,估计安岳马门溪龙的个体藏量在10具以上。

另外,在城东乡发现剑齿象化石,在城南乡、伍堡乡、两板桥乡发现鱼化石,在赵坪乡发现硅化木,在城北乡、龙桥乡发现恐龙化石群体。这些化石具有较高观赏价值和科研价值,为开展地质旅游提供了丰富的素材。

除化石资源外,据调查确认,保护区内共有高等植物84科198属273种。

据了解,保护区内的化石具有典型性、稀有性、脆弱性、多样性的特点。化石资源是不可再生资源,一旦遭到破坏,很难恢复。在研究生物起源和进化、古地理、古气候的研究、自然遗产保护等方面都具有极高的科学价值。如何保护这里,成为安岳人关注的话题。

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