Ever since people had begun to catalog the strata in particular outcrops, there had been the hope that these could somehow be used to calculate geological time.
"从人们开始对地表的特殊岩层进行编目和分类时起，大家就开始期望能够以某种方式利用这些岩层来计算地质年代。
Earthquakes and tsunamis that resulted from the collision could have wrought havoc on the sedimentary record, causing discrete strata to swirl together and completely scrambling time lines.
由于撞击造成的地震和海啸可能对沉积层造成严重的破坏，使得离散的岩层旋转混合在一起并完全打乱地质时间线。
Layer upon layer of different rocks recede down into the Grand Canyon and back through time, until the strata, at the river, revealed some of the oldest exposed rocks on earth.
一层层各种各样的岩石铺叠着一直深入到峡谷之中，直至地层，追逐着时光的变迁，在河床中显露着一些地球上最古老的岩石。
Strata thickness calculation is a routine work in office operation and geological analysis after field operations, while the traditional calculation may spend geologists a lot of time and strength.
岩层厚度的计算是野外地质工作内业整理和地质分析中的一项经常性工作，传统的工作方法往往要花费地质人员大量的时间和精力。
Changes in the Earth through time can be documented by observing changes in the fossils in successive strata and the environments in which they formed or were preserved.
地球随时间的变化，可以通过连续的地层以及化石形成或保存的环境中所见到的变化得以证实。
He tried to guess how the strata behaved at the time the contortions formed.
他试图推断地层在扭曲形成时是如何变化的。
The result of practical coherent time profiles indicates that the new algorithm can effectively enhance the continuity, which is helpful to track strata and explain faults.
实际资料的相干时间剖面表明，该算法有效地突出了地层的高连续性特征，有利于层位追踪和断层解释。
The depth section overcomes the shortage of the time section, which can be influenced by the thickness and velocity of layers jointly, and shows the thickness of strata distinctly.
深度剖面克服了时间剖面受地层厚度和地层速度共同制约的缺点，有利于识别低幅度构造。
Due to the distinct difference in tensile and compressive properties, the position and deformation curvature of curved neutral layer will change with time for the! Strata in a creep state.
由于岩石材料抗拉与抗压性能的明显差异，使岩层受蠕变作用时，其弯曲中性层位置及变形曲率都将随时间变化。
The forming time of hydrocarbon reservoirs in different series of strata is different.
不同层系油气藏的形成时间存在差异。
In the time of Darwin which dated back one and a half centuries ago, there was almost no fossil found in the strata older than Cambrian.
一个半多世纪之前的达尔文时代，比寒武纪更古老的地层中几乎没有发现化石。
Drilling a well in the broken carbonate strata where the pressure gradient is widely different, lost circulation is an important factor that makes the rig time losed.
在压力梯度悬殊的碳酸盐岩破碎地层中钻井，井漏是损失钻机月的重要因素。
Diagenetic time of upper Tertiary strata in Xixiayuan engineering is short, and the rock and soil exist at the same time, which is transitional strata between rock and soil.
西霞院工程上第三系地层成岩时间短，岩、土性质并存，是介于岩石与土之间的过渡性地层。
One of these kinetic models is the geologic strata pressure with productive time variety, which will change the traditional static optimization allocation.
其中地层压力随生产时间变化的动态模型，将改变传统的气井静态配产方法。
Research purposes: it is the first time for China to construct tunnel in karst strata with shield method.
研究目的：岩溶地层中采用盾构法施工在国内尚属首次。
According to the experiment results, the subsidence ratio of strata and surface varying with time is analyzed.
根据实验结果分析了开采停止后覆岩及地表下沉率随时间变化过程。
But to layered strata, the seismic wave path is complicated when reservoir changes, and it is difficult to directly define vertical time difference by pre stack far offset seismic data.
对于层状介质，油藏变化前后的地震波传播路经比较复杂，其激发点和接受点发生了变化，要想用叠前远偏移距数据直接计算垂直时差比较困难。
Also, the crack extension time decreases with the increase of material creep index and the loading of overlying strata rock while it increases with the increase of tensile strength of roof rock.
断裂孕育时间随材料的蠕变指数、上覆岩层压力的增大而减小；裂隙扩展时间也随材料的蠕变指数、上覆岩层压力的增大而减小，但随岩石的抗拉强度增大而增加。
The overburden strata movement is a complicated time and space process.
覆 岩层的运动是一个复杂的时空过程。
In the local or global movement of rock mass under mining, overlying strata play a key role. The overlying strata movement is a complicated space-time process and has time-dependent feature.
上覆岩层对采动岩体活动全部或局部起决定性作用，上覆岩层运动是一个复杂的时空过程，具有时效性。
In the local or global movement of rock mass under mining, overlying strata play a key role. The overlying strata movement is a complicated space-time process and has time-dependent feature.
上覆岩层对采动岩体活动全部或局部起决定性作用，上覆岩层运动是一个复杂的时空过程，具有时效性。
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