| 1. | The unconformity marks the change from fluvial to marginal marine deposition . 不整合面标志着河相至边缘海相沉积的相变。 |
| 2. | Study on the character of marine sediment basin in the mid - yangtze area 中扬子区海相沉积盆地性质研究 |
| 3. | Distribution characters and exploration potential of mesozoic sea facies sedimentary strata in the south china sea basin 南海盆地中生代海相沉积地层分布特征及勘探潜力分析 |
| 4. | From the late carboniferous to the end of permian , the spores of the shishuyuan trough were from the north china province , and the marine sediments were absent in the southern part of eqm 晚石炭世至二叠纪末,柿树园海槽的孢子见于华北生物省,东秦岭南部缺乏海相沉积。 |
| 5. | Abstract1 northeast sichuan basin is a mesozoic - cenozoic basin with complex tectonics , triassic formation based on marine deposits was an important potential resource and reservoir 摘要川东北地区是一个具有复杂构造的中新生代盆地,以海相沉积为主的三叠系是重要的储层。 |
| 6. | The qiangtang basin , having the most complete and extensive marine sedimentary strata during jurassic , is the second larger mesozoic marine sedimentary basin 藏北羌塘盆地地处青藏高原腹部,是我国中生代第二大海相沉积盆地,侏罗系是羌塘盆地发育最全、分布最广泛的海相沉积层系。 |
| 7. | ( 5 ) the study indicated that the formation and evolution of five tertiary sequence of middle - upper jurassic series correspond to five rise and fall cycles of sea level , and finally ends in marine deposits ( 5 )研究表明,中?上侏罗统五个三级层序形成演化对应相对海平面的五次升降变化旋回,并最终结束海相沉积。 |
| 8. | Carbon and oxygen isotope data show that the carbonatite layer in fozichong ledge is different from the normal marine sedimentary carbonatite , infering that its formation has relation with hot - water sedimentary activity 碳、氧同位素显示,佛子冲矿田赋矿层位中的碳酸盐岩地层与正常的海相沉积碳酸盐岩不同,其成因与热水沉积活动有关。 |
| 9. | Conclusion are obtained as follows : 1 . basin accepted sedimentation since sinian , and strata were well developed . it was marine sedimentary series from sinian to middle - triassic and become continental sedimentary series since late - triassic 主要成果及认识如下: 1 、盆地自震旦纪以来长期接受沉积,地层发育良好,震旦纪至中三叠世为海相沉积体系,晚三叠世以后为陆相沉积体系。 |
| 10. | The qiantang basin , having the most complete and extensive marine sedimentary strata during jurassic , is the second larger mesozoic marine sedimentary basin . although many achievements are obtained in recent years , the research are still only involved in second - or third - order of mesozoic sequence . on the base of sedimentation facies analysis of matuo formation , high frequency sequence are studied 藏北羌塘盆地地处青藏高原腹部,是我国中生代第二大海相沉积盆地,侏罗纪是羌塘盆地发育最全、分布最广泛的海相沉积层系近年来,羌塘盆地在层序地层方面的研究已取得不少成果,但其层序地层研究多涉及中生代二级或三级层序,至于高频层序,尚未进行详细的研究。 |