青海省地质特征及典型地质标本采集经验

地质标本是地史演化和地学研究的见证物,同时也是地质宣传和教学的基础资源和核心材料。以习近平新时代生态文明建设思想为指导,对青海省地质特征及典型地质标本采集经验进行深入分析和讨论。研究结果表明青海省处于不同时期规模巨大的造山系中,区域地质活动强烈,经过亿万年的地质演化,形成了丰富的具有典型性和代表性的地质标本。典型地质标本采集时可重点考虑北祁连蛇绿岩、中南祁连构造糜棱岩、柴北缘花岗伟晶岩、西秦岭矽卡岩、青南流纹岩和不同地质年代形成的化石等地质体。同时此次在采集地质标本时得出的宝贵经验,对于今后深入剖析省内地层时空接触关系和构造活动特征、揭示地层演化历史和矿藏分布规律、以及为吸引更多的国内外地学爱好者提供了具有高原特色的新场景和新生态。

Geologicalcharacteristics of Qinghai Province and experience in collecting typical geological specimens

Geological specimens are witnesses to the evolution of geological history and geological research, as well as basic resources and core materials for geological propaganda and teaching. Guided by Xi Jinping’s thought of ecological civilization construction in the new era, in- depth analyses and discussions are conducted on the geological features of Qinghai Province and the experience of collecting typical geological specimens. The results of the study show that Qinghai Province is in the region of huge scale orogenic system in different periods, with strong regional geological activities, and after hundreds of millions of years of geological evolution, a wealth of typical and representative geological specimens have been formed. Typical geological specimens can be collected by focusing on geologic bodies such as ophiolite in the North Qilian Mountains, tectonic meridian in the Central and South Qilian Mountains, the granitic pegmatite at the northern edge of the Qaidam Basin, skarn in the Western Qinling Mountains, rhyolite in southern Qinghai, and fossils formed in different geologic eras. Meanwhile, the valuable experience gained from the collection of typical geological specimens of Qinghai Province provides a new scene and new ecology with highland characteristics for the future efficient analysis of the stratigraphic spatio—temporal contact relationship and tectonic activity characteristics of the province, reveals the stratigraphic evolution history and the distribution law of mineral deposits, as well as attracts more domestic and foreign geoscientific enthusiasts.