| 1. | Rift setting , lithofacies and palaeogeography of the basin , physical properties of the sediments , and synsedimentary faulting have played important roles in formation of the deposits
裂谷环境、盆地的岩相古地理、沉积岩的物性特征、同沉积断裂等因素对矿床的形成起重要的控制作用。 |
| 2. | The immediate host siliceous rocks of typical deposits ( jinya , gaolong ) are of hydrothermal sedimentary origin . gold ore bodies are layer - like and generally concordant with their host rocks . abundant relict synsedimentary fabrics are preserved in the ores
典型矿床(金牙、高龙)中的含矿硅质岩属热水沉积岩，矿体形态主要为与地层整合的层状和似层状，矿石具有大量同生沉积的标型组构。 |
| 3. | Based on 1 : 100000 high - precision aeromagnetic data , the author holds that huangzhuguan - yushuba fault is not only a second - order synsedimentary fault associated with lixian - mayanhe regional fault in the north , but also a deep fault that cuts the basement
摘要通过对1 : 10万高精度航磁资料研究，认为黄渚关榆树坝断裂不仅仅是其北部礼县麻沿河区域性断裂伴生的1条次级同沉积断层，而是1条切割基底的深大断裂。 |
| 4. | In the interim from highstand systems tract to transgressive systems tract , faulting is violent in the basin , different kind of fluids coming from dissimilar position of lithosphere enter into synsedimentary faults served as a place fluids mixed to form ore - bearing hydrocarbon alkali - fluids
在从高水位体系域向海侵体系域的盆地相迅速转化时，盆地内断裂构造活动强烈，断裂沟通不同部位的热水流体，使成矿烃碱流体沿断裂上升，在海底沉积成矿。 |
| 5. | The study area is composed of sandstone & conglomerate reservoir of alluvial fan & fan delta , which belong to sha3 lower member and sha4 upper member of lower tertiary of yong " an town oilfield in dongying depression . the target stataum develops in the hanging wall of the synsedimentary fault in the scarp zone of dongying depression . the frequently intense movements result in the variation of sandstone and conglomerate reservoir and the evolution of the time and space of sha3 lower member and sha4 upper member in yong " an town oilfield
研究区是东营凹陷永安镇油田沙三下段、沙四上段的冲积扇和扇三角洲砂砾岩体，目的层发育在东营凹陷陡坡带同生断层的下降盘，因断层多期强烈活动，导致永安镇油田沙三下段、沙四上段的砂砾岩体成因类型多，时空演化变化大，在扇根一带小层对比难度大，给油田开发带来很大的难题，在这种背景下进行流动单元研究难度更大。 |
| 6. | The wall rock of ore - bodies is the siliceous dolostone and alkaline volcanic rock ( trachy andesite ) in the yinachang deposit . based on the shape of ore - bodies and the structure and texture of ores , the deposit was identificed as synsedimentary with wall rocks . there occurred ree minerals , such as bastnaesite , monazite and allanite , associated with apatite and fluorite with ree contents to a certain extent
矿体产出形态和矿石的结构构造等均显示矿体与赋矿地层同沉积特征；出现独立矿物氟碳铈矿、独居石及褐帘石，磷灰石、萤石、菱铁矿等矿物中也含有一定量的稀土，沿矿体走向和垂向稀土元素变化不大。 |
| 7. | The fluids upwelled to seafloor along fault thus ore - forming metals accumulated . 2 . this paper indicated the definition the hydrothermal sedimentary rocks . the definition is a group of especial sedimentary rocks forming at the temperature ranging from 70 ? to 350 ? ( or more high ) through sedimentation and synsedimentary metasomatism in the seafloor
区内的热水沉积岩主要有硅质岩、钠钾长石岩、重晶石岩、透闪石岩、碳酸盐岩、绿泥石岩和铁白云石斑点千枚岩，它们往往与热水沉积矿体紧密伴生。 |
