| 1. | Prograding bar－finger sand bodies are over－ridden by distributary channels as the shoreline retreats .
当海岸线后退时，向海推进的指状沙坝被分流河道所覆盖。 |
| 2. | Distributary mouth - bar sandstones in the progradational delta system and distributary channel and transgressive sheet sandstones in lowsfand prograding complex are excellent reservoirs ,
层序岩性油藏大面积分布，已形成凹陷内大面积含油的局面。 |
| 3. | The conclusions are as following : ( 1 ) the natural prograding rate of the coastal salt marshes is related closely to the annual prograding rate of the tidal flat
本文得出以下结论： ( 1 )盐沼自然扩展速率为，其中， a为某年的某片盐沼面积， b为n年后的盐沼面积。 |
| 4. | This prograding complex consists of several small prograding bodies . the transgressive system tract is consist of three retrogradational parasequence sets . the highstand system tract is mainly about aggradation
层序低位域是在强制性湖退背景下形成的，由三个进积型准层序组构成。 |
| 5. | The prograding rate of the spartina alterniflora vertical to the coast is slower and the prograding rate parallel to the coast is quicker through it also will be slower when expanding across the tidal creeks
它垂直于海岸的扩展速度较慢，平行于海岸的扩展速度较快，但在越过潮沟扩展时，速度也会变慢。 |
| 6. | The natural prograding rate is p = 1 - , in which a means one salt marshes area in one year and b means the salt marshes area after n years . the prograding rate is rapid if the prograding rate of the tidal flat is fast
潮滩淤长快，则盐沼的扩展速率也快，海岸盐沼的自然增长速率与潮滩的年淤长速率呈线性相关( p = 26 . 282x + 0 . 4865 ) 。 |
| 7. | This thesis studies the tidal creek system on the prograding mud flat in jiangsu province based on 16 pieces of mss , tm and spot images from 1973 to 2001 , and analyses the growth , genetic classification , evolution and affecting factors of tidal creeks
本文结合1973年至2001年共16张不同时相的卫星影像对江苏淤长型淤泥质潮滩上的潮沟系统进行了研究，对潮沟的发育、形成、演化和影响因素进行了初步探讨。 |
| 8. | According to the data of seism , mud well logging , well logging , cores and the principles of well correlation , this third - order sequence is divided into three fourth - order sequences ( system tracts ) and nine fifth - order sequences ( parasequence sets ) . the lowstand systems tract is formed in the background of forced lake regression , which is consist of . three prograding parasequence sets
根据地震、综合录井、测井、岩心等资料，依据井间可对比的原则，研究层段的三级层序划分为三个四级层序(即体系域)和九个五级层序(即准层序组) 。 |
| 9. | A formula of n = can be used to calculate the residual salt marsh area outside the seawall when reclaiming , in which m means the new reclaiming area of the salt marsh , p means the prograding rate of the salt marsh , n means the ecology recovering period which is equal to the interval between two reclaiming along the same coast
可以通过式子计算新围海堤外侧需要予留的盐沼面积。式中， m为新围面积， p为盐沼增长速度， n为生态恢复周期(等于同一岸段两次匡围的时间间隔) 。 |
| 10. | Moreover , the system tracts in sequence are characterized by dualistic structure , namely transgressive - highstand system tracts , and tst > hst . the parasequences are divided into three types , which is respectively dominated by sandstones , mudstones , and shallowing - upward tidal flat system . and prograding sequence and retrograding sequence are composed of stacking parasequence set
层序中体系域具有二元结构特征，即海侵?高水位体系域，且tst hst ，准层序类型有三种，分别是以砂岩为主的准层序、以泥岩为主的准层序和以潮坪体系向上变浅的准层序。 |
