寒武—奥陶主题展厅

Thematic Exhibition Hall of Cambrian-Ordovician

《寒武—奥陶》是松花石博物馆的专题陈列。寒武-奥陶系界线标准剖面形成于距今5亿年左右的古海洋中，其特征精彩绝美，是地球生物演化的重要阶段，在古生物、古地理、古环境的科学研究领域重要性不言而喻。

“Cambrian-Ordovician” is the special display of the Songhua stone museum. The standard section of the boundary line of the Cambrian-Ordovician system formed in the ancient oceans about 500 million years ago. It has wonderful and beautiful characteristics and is an important stage in the evolution of life on Earth, and its importance in the scientific research of paleontology, paleogeography and paleoenvironment is self-evident.

寒武—奥陶系海相沉积地层连续发育，其中含有极为丰富的三叶虫、笔石、牙形刺、疑源类等多门类古生物化石，而三叶虫象征着真正生命的起源，它还记录了4、5亿年前地球的演变、古气候的变迁、古生物生存环境的沧桑历程。是岩石圈、大气圈、生物圈演化的基础。

The sedimentary strata of marine facies of Cambrian-Ordovician continuously develop and contain extremely abundant trilobites, graptolites, conodonts, lematica and many categories of other fossils. The trilobite symbolizes the origin of true life, and it also records the evolution of the earth, paleoclimate change and the turbulent course of paleontology living environment about 400 - 500 million years ago. It is the basis of the evolution of lithosphere, atmosphere and biosphere.

科学复原的大阳岔寒武奥陶地址界线剖面景观雕塑，其中寒武、奥陶系地质遗迹界线一目了然。

The Cambrian and Ordovician geological remains boundary in the scientifically recovered landscape sculpture of the location boundary section of Dayangcha Cambrian-Ordovician is clear at a glance.

1986年大阳岔寒武—奥陶系界限现场考察与学术讨论会照片

Photos of Site Inspection and Colloquium on the Boundary of the Cambrian-Ordovician at Dayangcha in 1986

1985年，在加拿大卡尔加里召开的国际寒武—奥陶系界限工作组会议上，大阳岔寒武—奥陶系地质界线剖面以其“出露良好、化石丰富及其必要条件优越”，与加拿大的纽芬兰剖面一起被列为全球寒武—奥陶系界限两个侯选层型剖面。1986年7月24日国际地科联地层委员会国际寒武—奥陶界限工作组召开了“大阳岔寒武—奥陶系界限现场考察与学术讨论会”，出席会议的有美国、加拿大、挪威、英国、联邦德国、日本、朝鲜、瑞典、比利时、澳大利亚、意大利、法国及我国的100多名专家学者。大阳岔寒武—奥陶系界限剖面得到与会专家和学者的充分肯定，并成为全世界地层古生物学者科学考察研究的理想地点。它与其周边绚丽的枫叶岭，幽深的溶洞和神秘的干饭盆共同成为远近闻名的自然科学文化遗产、科普教育基地和旅游景地。

In 1985, at the international Cambrian-Ordovician Boundary Working Group meeting held in Calgary, Canada, with “well exposed, fossil-rich and superior necessary condition”, the Dayangcha Cambrian-Ordovician geological boundary section, together with the cross-section of Newfoundland in Canada were listed as two candidate stratotype sections of Cambrian-Ordovician in the world. On July 24, 1986, the international Cambrian-Ordovician Boundary Working Group of the commission of IUGS on Stratigraphy held the meeting of “Site Inspection and Colloquium on the Boundary of the Cambrian-Ordovician at Dayangcha” and more than 100 experts and scholars from the United States, Canada, Norway, the United Kingdom, the Federal Republic of Germany, Japan, Korea, Sweden, Belgium, Australia, Italy, France and China attended the meeting. The Dayangcha Cambrian-Ordovician boundary section won full recognition of the participating experts and scholars and became the ideal location for the scientific investigation conducted by scholars of stratigraphy and paleontology scholars worldwide. Together with the surrounding gorgeous Maple Ridge, deep caverns and mysterious Ganfanpen, it has become a well known natural scientific and cultural heritage, popular science education base and tourist attractions.

距今2.3亿年至6500年前的中生代时期，是恐龙的辉煌时代。博物馆展出的两块恐龙化石是2011年7月在江源区大石人村发现的，是长白山地区首次发现的大型恐龙化石，对研究本地区的古生态、古地理、古环境具有重要意义。

The Mesozoic Era, dating back 230 million years to 6,500 years ago, was the glorious era of the dinosaurs. The two dinosaur fossils displayed in the museum were found in July, 2011 in Dashiren Village of Jiangyuan District, and it was a large dinosaur fossils found in the Changbai  Mountain region for the first time. It has great significance for the study of paleoecology, paleogeography and paleoenvironment in this region.

寒武纪是现代生物的开始阶段，是地球上现代生命开始出现、发展的时期。寒武纪常被称为“三叶虫的时代”，这是因为寒武纪岩石中保存有比其他类群丰富的矿化的三叶虫硬壳。此三叶虫化石产自于大阳岔寒武奥陶地址遗迹。

The Cambrian Period is the initial stage of current biology and the era of the appearance and development of modern life on Earth. The Cambrian is often referred to as “the trilobite’s era”, because the mineralized shells of trilobites in the rocks of Cambrian are richer than other groups. These trilobite fossils are produced from the Dayangcha Cambrian-Ordovician remains.