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二,黄河奇石的形成过程山峡河谷的岩石演化成奇巧动人、人见人爱的黄河奇石,非人力可为,完全是大自然的造化。在漫长的地质历史进程中,古老的岩石经受了自然界各种地质作用的改造、加工,最终塑造了今天人们收藏、观赏的奇石。黄河奇石的脱颖而出,绝非一朝一夕的事情,而是跨越了几十万年乃至几亿年的地质演变时间。一般地说,要经历三个演变阶段。第一阶段:很古很古形成的矿物岩石,即今天供赏玩的奇石岩体的母岩。岩浆岩母岩常以两种构成存在,一种是显晶质的粒状结构的岩石,如花岗岩、伟晶岩、辉长岩、辉长辉绿岩等。另一种是微晶质的细粒结构,甚至是隐晶质结构,如玄武岩、凝灰岩、碧玉等,岩石似均匀状,肉眼难以分辩其组成矿物
Second, the process of the formation of the Yellow River rocks Yamagata Valley rocks into surprisingly clever, lovely Yellow River rocks, non-manpower can be, is entirely nature’s good fortune. In the long course of geology and history, the ancient rocks have undergone the transformation and processing of various geological functions in nature and finally shaped the rocks that people today enjoy and watch. The Yellow River rock come to the fore, not overnight thing, but across hundreds of thousands of years and even hundreds of millions of years of geological evolution time. In general, to go through three stages of evolution. The first stage: a very ancient mineral rock formation, that is, today for the play of rock rocks of the rock. Magmatic rock rock often exists in two forms, one is the granulite granulite rock, such as granite, pegmatite, gabbro, gabbro and so on. The other is the microcrystalline fine-grained structure, or even cryptocrystalline structure, such as basalt, tuff, jasper, rock-like uniform, the naked eye is difficult to distinguish the composition of minerals