| 1. | Molecular clouds play an integral role in the prestellar evolutionary sequence of interstellar matter . 分子云在星际物质的星前期演化序列中起着不可缺少的作用。 |
| 2. | It ' s difficult to decide the position of the unit in evolutional seriary of magma 该单元在岩浆演化序列中所处的位1难以确定。 |
| 3. | Its difficult to decide the position of the unit in evo - lutional seriary of magma 该单元在岩浆演化序列中所处的位置难以确定。 |
| 4. | From the study of lead isotope , we know that the lava of erlangping is ocean lava - spilite keratophyre , it is the main origin of lead in time evolvement sequence and genesis 铅同位素研究表明本区二郎坪群的火山岩为洋壳火山岩?细碧角斑岩,在时间演化序列上和成因上它们作为pb的主要源岩。 |
| 5. | In the turbulence scenario , the sequence of events is the same for stars and brown dwarfs ; stars simply come from cores that happen to be larger , and brown dwarfs from cores that happen to be smaller 在乱流说里,恒星与棕矮星的演化序列完全相同;只不过恒星源自较大的云核,而棕矮星来自较小的云核。 |
| 6. | Because of their prominent advantages compared with other achieves of environmental change , the study of high - resolution sequence of environmental change during the late quaternary mainly depends on the polar ice - core and deep ocean sediment 由于冰芯与深海沉积和其它环境演化信息的记录载体相比优势明显,国际上的晚第四纪高分辨率环境演化序列研究多采用冰芯与深海沉积序列。 |
| 7. | The discovery of abrupt climatic changes and the aim of predicting the environmental change in the coming future of the study of global change make studies on the high - resolution sequence of environmental change a frontier and hotpoint of the study of global change 气候突变事件的发现和全球变化科学预测未来环境变化的目标使高分辨率环境演化序列研究成为全球变化研究的一个前沿和热点领域。 |
| 8. | Following the theory of geological anomalies of mineralization and along the major guidelines of study on tectonic evolution and mineralized pedigree , the sequence of tectonic evolution and mineralized pedigree in this area has been created by means of gis technique and historic analysis ; adoption of modern information treatment and analysis of geology , geophysical and geochemical prospecting and remote sensing methods has quantitatively delineated geological anomalies and potential areas of mineralization 本文以地质异常致矿理论为指导,以构造演化与成矿谱系研究为主线,以gis技术为手段,用历史的分析方法建立了区内构造演化序列和成矿谱系;采用现代信息处理技术,通过对地物化遥资料的分析处理,定量化圈定了地质异常,划分了成矿远景区。 |
| 9. | Detailed studies of tectonic unit and mineralized pedigree in each tectonic unit and each period provided that tectonic evolution passed an evolutionary sequence from early extension - transition - late compression that correspond to mineralization - sediment and submarine eruption - exhalation mineralization - moderate to acid magma and tectonic hydrothermalism that are relevant to mantle - derived magma and volcanic activities ; the mineralized pedigree can be indicated as mantle derived - inner basin and deep source - crust source ore - forming materials 对各时期、各构造单元的成矿谱系进行了详细研究,提出构造运动演化从早期拉张过渡晚期挤压的演化序列,分别对应于以幔源岩浆和火山活动有关的成矿作用沉积及海底喷流?喷气成矿作用中酸性岩浆及构造热液成矿作用;在成矿物质上由幔源盆内及深源壳源的成矿谱系。 |
| 10. | Lying at the core part of qinling orogenic belt , the weishancheng au - ag polymetallic ore belt is a complex tectonic belt produced by repeated convergence , piecing together and welding of several strata and terrains which were formed in different tectonic settings and had their respective formation characteristics as well as independent deformation , metamorphic and tectonic evolutionary sequences 摘要围山城金银多金属成矿带处于秦岭造山带东段核部,其由多个形成于不同构造环境,有著各自独立的建造特徵、变形变质和构造演化序列的构造地层地体,经多次聚合后拼贴并焊结为一体的复杂构造带。 |