其主要原因除与油气地质条件相关外，还取决于近地表沉积物的性质，以及地理、地貌的景观条件。
In addition to the petroleum geologic conditions, the main causes are also related with the properties of near surface sediments and the geographical and geomorphologic landscape conditions.
最后，我们陈述了将BPD接收函数方法（BPRF）应用于印度卡奇的场数据集，这里已知存在近地表沉积层。
Finally, we demonstrate application of the BPD receiver function (BPRF) method to a field dataset from Kutch, India, where near‐surface sedimentary layers are known to be present.
针对海洋油气渗漏可以在近地表沉积层中引起的一系列烃蚀变效应，本文讨论了利用不同手段，分层次进行检测的几种方法。
Some different geophysical detection methods are introduced on the bario of a series of altered effects by the marine oil gas seepage.
远程控制的机器粉碎硫化物沉积物，然后通过升流管将其吸附到地表的容器上。
Remote-controlled machines smash the sulfide deposits, which are then hoovered up through a riser pipe to a vessel on the surface.
沉积岩——地表附近最常见的岩石类型——也是最常见的储水层，因为它们可以装水的空间最多。
Sedimentary rocks—the most common rock type near the surface—are also the most common reservoirs for water because they contain the most space that can be filled with water.
这次爆炸将大约100万亿吨的尘埃提升到大气中，这一数字可以通过测量这些尘埃降落到地表时所形成的沉积层的厚度来确定。
The explosion lifted about 100 trillion tons of dust into the atmosphere, as can be determined by measuring the thickness of the sediment layer formed when this dust settled to the surface.
这些沉积物位于地表，主要是由泥土、砂砾和一种粘稠的石油构成，这些石油板结成块，看起来就像土块和石屑。
Deposits sit on top of the earth, and they're composed of clay, sand and a dense form of petroleum that clumps like sod and crumbles.
科学家还发现从深海小心翼翼带到地表的沉积物样本里含有细菌和古代细菌。
And sediment samples brought carefully to the surface were found to contain bacteria and archaea.
为了更深入地研究了一般圆弧状沉积盆地的出平面地表运动特征，本文与已有的软土单覆盖层解析结果做了对比分析。
Comparison analysis for antiplane surface motion features between the circular-arc cross-section alluvial valley and the single overburden layer is investigated in details in this paper.
硅藻对地表石灰华沉积的生物作用，主要包括同化作用、拦截和粘结作用、结壳作用、胶结作用。
Diatoms biological functions on subaerial Karst sedimentation are studied chiefly in this paper, including assimilation, tapping and felting effects, encrustation, cementation.
然而，如果生命一旦在地表出现，他很有可能留下化石记录。这个记录可能是古沉积物形式保留在地表。
However, if life once existed in surface environments, it is likely to have left behind a fossil record in ancient sediments now exposed at the surface.
沉积盆地地表运动有强烈的扭转效应，并且此扭转效应随盆地变软和入射波频率的增高而增强。
The notable torsion effects of the surface ground motion above the alluvial valley are illustrated and the torsion effects become stronger as the frequency of the incidence is higher.
它形象直观地表达了地下水含水层的结构构造和地层的沉积规律。
It shows the structure of aquifer and the sedimentary rule of stratum visually.
现代沉积旋回的孢粉平均浓度，远低于草地和坡耕地表土，这表明草地和坡耕地土壤不是沉积泥沙的主要来源。
Average pollen concentration in the modern deposits is much less than those in surface soils on both the grassland and the cultivated land.
在上覆透水层，由于地表水的参与形成复杂的气水地球化学垒，使铀沉积成矿。
Because of the complicated gas-water geochemical barrier formed by the involvement of surface water, the precipitation of uranium occurred in overlying aquifers to form uranium deposit.
它形象直观地表达了地层的结构构造和地层的沉积规律。
It shows the structure and sedimentary rule of stratum visually.
锡铁山矿床地表及上部中段的近矿围岩中发育大量的石膏和含锌菱铁矿，长期以来主要作为喷流沉积或后期改造的产物。
It has been found that a lot of gypsum and zinc bearing siderite occur on the surface of Xitieshan deposit and near ore country rocks of the upper part of the ore body.
地下生物的最早证据是在格陵兰岛地表发现的有机化学结构的岩石，被认为来自古代的海底沉积物。
The earliest evidence for terrestrial life is the organic chemical structure of a rock found on the surface in Greenland. The surface was thought to be from an ancient sea floor sediment.
他说：「停车场的问题出在，它累积了很多污染物，如汽油、油污、重金属及沉积物，它们并不会被地表吸收。」
The problem with parking lots is that they accumulate a lot of pollutants - oil, grease, heavy metals and sediment - that cannot be absorbed by the surface, " Engel said."
采集了泉州湾红树林湿地表层沉积物样品，测定了沉积物中不同形态汞的含量，研究了汞的分布特征、赋存形态及其生物有效性。
Surface sediments were sampled from the mangrove wetland in Quanzhou Bay to study the distribution, speciation, and bio-availability of mercury in the sediments.
采集了泉州湾红树林湿地表层沉积物样品，测定了沉积物中不同形态汞的含量，研究了汞的分布特征、赋存形态及其生物有效性。
Surface sediments were sampled from the mangrove wetland in Quanzhou Bay to study the distribution, speciation, and bio-availability of mercury in the sediments.
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