| 1. | The precambrian strata of jilin province 吉林省前寒武纪地层 |
| 2. | Precambrian tectonic deformation and its evolution in ludong orogenic belt china 中国鲁东造山带前寒武纪构造变形及其演化 |
| 3. | Among them the precambrian and cenozoic eras are the main metallogenic epoches in the world 就全球而言,前寒武纪和新生代是金矿的重要成矿期。 |
| 4. | History and current status of study on stromatolitic nomenclature and classification in the precambrian 前寒武纪叠层石命名和分类的研究历史及现状 |
| 5. | Chemical fossils ( e . g . alkanes and porphyrins ) are often the only evidence for life in rocks of precambrian age 化学化石(烷烃和卟啉)是前寒武纪地层中生命存在的唯一证据。 |
| 6. | This paper has made a detailed analysis of the temporal and spatial distribution of precambrian mineral deposits in china 摘要文章详细地分析研究了中国前寒武纪矿床的时空分布。 |
| 7. | The rocks coexist closely , distributing in a narrow and long belt in the late precambrian orogenic belt in northern liaoning 它们紧密共生,呈狭长的带状分布于辽宁北部晚前寒武纪造山带内。 |
| 8. | With the geological evolution in precambrian , minerogenetic materials and types of mineral deposits obviously varied and increased 随著中国前寒武纪地史的演化,成矿物质种类和矿床类型具有明显的变化和增多。 |
| 9. | Paleocontinental margins and rifts within paleocontinents are very favorable places for the distribution of precambrian mineral deposits in china 而陆块边缘和陆块内部裂谷是前寒武纪矿床产出的十分有利的空间。 |
| 10. | Precambrian mineral deposits are mainly distributed in paleocontinents especially in north china platform and yangtze platform , with a few distributed in orogenic belts 中国前寒武纪矿床主要分布在陆块区,尤以华北陆块、扬子陆块较多,较少分布在造山带。 |