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天津南市食品街前矗立着一座镌刻着万里副总理题字的纪念碑。这座纪念碑石十分奇特。正面看,三弯九曲的天然凹沟,如春蚓秋蛇,静中有动;侧面看,自然流畅的涟纹,层层叠叠,疏密有致。这块高约三米的碑石全为天成之态,没经任何人工雕琢,其独特的造型使不少游客停步观赏。碑石上为什么会有这么奇妙的纹理呢?原来这是古代生物形成的特殊结构。碑石来自蜚声中外的天津蓟县元古界地层剖面。它是一块巨大的藻类化石,其形成距今已有十几亿年之久了。当时地球刚刚完成了从无生物到有生物的进化,还没有产生动物,
Tianjin Nanshi food stands in front of a monument engraved with the inscription of Miles Vice Prime Minister. This monument is very strange stone. Front view, three curved nine natural ditch, such as spring earthworm autumn serpent, static move; side look, natural smooth ripple, layers of layers, sparsely populated. This piece of stone about three meters high all-natural state, without any artificial carving, its unique shape so many tourists stop watching. Why is there such a marvelous texture on the stone? It turns out that this is a special structure formed by ancient creatures. The monument is from the famous Proterozoic stratigraphic section in Jixian, Tianjin. It is a huge algae fossil, which has formed more than a billion years ago. At that time, the Earth had just completed the evolution from the non-living creatures to the living creatures,