| 1. | The concepts of marine transgression and regression are considered to be fundamental . 海进和海退概念被认为是基本的概念。 |
| 2. | This method of portrayal emphasizes both the regressive nature and the time equivalence . 这种图示方法既强调了海退性质也强调了同时性。 |
| 3. | The thickness of this sheet sandstone is related directly to rate of regression and the amount of sand available . 这种席状砂岩的厚度直接取决于海退速率以及砂质供给量。 |
| 4. | This was the result from the large - scale regression in the late ordovician 这是晚奥陶世晚期大规模海退的结果。 |
| 5. | The upper layer sediment of core q43 in the outshelf of the southern east china sea shows that it is the regressive sequence of littoral facies to offshore facies and of representative significance 以q43岩心为代表的东海南部外陆架上层沉积物,是末次冰期海退层序中,滨岸相-滨外浅水相沉积。 |
| 6. | In the early sinian , clastic sediments formed by fluvial and continental glacial actions were developed , while in the late sinian , great thickness of marine carbonate rocks formed by two transgression - regression cycles were developed 早震旦世发育由河流作用与陆地冰川作用形成的陆源碎屑沉积;晚震旦世则发育由两次台地盆地台地的海进海退旋回形成的巨厚海相碳酸盐沉积。 |
| 7. | During the pleistocene epoch the area that is now tso - chen was repeatedly covered and uncovered by the sea , and the fossilized remains of many organisms were preserved in the sediments that were laid down . today , after each heavy rain the bed of tsailiao creek is left covered with large numbers of fossils 左镇的菜寮溪流域,由于更新世时为海亲海退相互间发生的不安定环境,造成大量死亡的生物形成化石沉积,每逢豪雨冲刷,菜寮溪河床上即散布大量的古生物化石。 |
| 8. | The top sediment above 1 . 8m depth was referred to be the deposit under the cold water mass since 9 . 7kabp . in the middle southern yellow sea . q - mode factor analysis was employed on 98 samples and 33 benthic foraminiferous species with relative abundance of more than 2 % in at least 3 samples and 5 varimax factors had been recognized as follows : factor 1 ( ammonia beccarii vars 南黄海中部泥质区的ey02 - 2孔共揭示了氧同位素6期以来的海侵海退序列,该孔浮游有孔虫匮乏,说明黄海暖流对钻孔所处南黄海中部冷涡泥质沉积区影响一直很弱,底栖有孔虫中玻璃质壳占绝对优势,比例为93 . 87 100 。 |
| 9. | The results indicate that these parameters in profile change closely with geotectonic cycles as follows : sulfur , colloid and asphaltene contents keep the lowest values in devonian , triassic , jurassic and tertiary ; they are in accordance with regressive geotectonic phases , of which the maximum values appear to be correspond to the largest - scale marine transgressions occurred in caledonian cycle , hercynian cycle and middle phase of alpine cycle 指出,这些石油参数在剖面上的变化与大地构造旋回有密切关系:硫,胶质和沥青质的含量在泥盆纪、三叠纪、侏罗纪和新近纪为最低值,它们与海退构造阶段相一致;石油化学成分最大值与加里东旋回、海西旋回和阿尔卑斯旋回中期的最大海侵相一致。 |