| 1. | It is useful in discussing the nature of sedimentary deposits . 它在讨论沉积物的性质时是有用的。 |
| 2. | Oil is formed by the decay of animal, and possibly some plant, remains in a reducing environment in sedimentary deposits . 石油是在沉积物还原环境中由动物遗骸,可能还有一些植物遗骸的分解所形成的。 |
| 3. | Surface modification of calcined sedimentary deposit kaolin and its application 沉积型煅烧高岭土表面改性与应用试验研究 |
| 4. | Surface modification of yichang calcined sedimentary deposit kaolin and its application 宜昌沉积型煅烧高岭土表面改性与应用研究 |
| 5. | The study of syntectonic sedimentary deposits is one of the advanced topics in current geological research 同构造沉积记录研究是当前地质学研究的热点和前沿领域之一。 |
| 6. | Pollen analysis a means of obtaining information on the composition and extent of past floras and environments by examining fossil pollen grains , spores , and similar structures in peat and sedimentary deposits 花粉分析:指通过检测花粉化石、孢子以及在泥炭和沉积物中类似的结构,以获得历史上曾有过的植物区系、组分以及分布范围与环境信息的方法。 |
| 7. | Those emeralds that are deeper and brighter in color , and which have fewer sedimentary deposits are categorized as higher - grade gems . and of course , their price escalates accordingly . besides , gemstones of more than one carat are very valuable 以宝石的分级而言,颜色愈深明沉淀物越少的宝石,等级越高,价格自然也会呈倍数成长,而且足克拉的宝石本身就有一定的高额价值。 |
| 8. | Lake delta depositional systems appear from lower permian shanxi to middle permian xiashihezi phase , braided river delta in shanxi phase with delta plain subfacies sedimentary deposit , and so early xiashihezi , meandered river delta plain subfacies in later xiashihezi group ( 2 )下二叠统山西组中二叠统下石盒子组为湖泊三角洲沉积体系,其中山西期为网( braided )状河湖泊三角洲,以三角洲平原亚相沉积为主,下石盒子组早期也为网状河三角洲、晚期为曲流河三角洲平原沉积。 |
| 9. | Under the guidance of theories of sedimentology , petroleum geology and sequence stratigraphy , and through the comprehensive analysis of outcropsrock , cores , well logs and testing outcomes of rock gas , this paper studies the depositional systems of neopaleozoic and the character of aeration zone in tabamiao area of ordos basin . the result indicates that the object layers are divided into two depositional systems , the barrier seacoast depositional systems are recognized on upper carboniferous taiyuan phase with tidal flat , lagoon and barrier bar sedimentary deposit 本文根据沉积学、石油地质学和层序地层学理论,综合利用地表露头、钻井岩芯、测井曲线资料和试气成果资料,对鄂尔多斯盆地塔巴庙区块晚古生代沉积体系及含气层特征进行了研究。结果表明,研究区内目的层段可以划分为2个沉积体系: ( 1 )上石炭统太原期为有障壁海岸沉积体系,发育潮坪?泻湖?障壁砂坝沉积。 |
| 10. | Applying system theory to study mineralized belt or concentrated area has been a hot topic recently . this paper applied new theory of modern seafloor hydrothermal sedimentary minerlization , sequence stratigraphy , mantle plume or hotspot and metallogenic series to study systematacially characteristic of geology and geochemistry of seafloor hydrothermal sedimentary deposits and hydrothermal sedimentary - rebuilded deposits and gold deposits 论文应用现代海底热水沉积成矿研究成果、层序地层学、地幔热柱或热点理论及矿床成矿系列理论等,对本区热水沉积型铅锌(银)矿床、热水沉积-改造型铅锌(银)矿床和金矿床进行了详细的地质地球化学研究。 |