• Many scientists provided valuable research and input into the creation of the geologic time scale.

    许多科学家为地质时间尺度建立提供了有价值研究投入

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  • The drift of the last glaciation was deposited during one of the most recent epochs of geologic time, the Pleistocene, which lasted from 1.8 million to 10,000 years ago.

    最后一冰川作用漂浮物沉积最近其中地质时期——更新世时期180万年前持续1万年前。

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  • As geologists, we examine layers of sediment on the Earth' s surface to approximate the dates of past geologic time periods.

    作为地质学家我们研究地球表面沉积层估算过去地质时期的年代。

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  • Over geologic time the central volcano becomes extinct, followed by erosion and subsidence beneath the sea surface, leaving the coral reefs as a ring around (or cap on) the submerged island remnant.

    由于侵蚀海底下沉经过地质时代的变迁,中心火山已经不见踪影,而只留下珊瑚礁环绕覆盖沉入海底的火山岛上。

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  • Paramushir island in the northern Kurils is an example of a large island built by several volcanoes over geologic time.

    千岛群岛北部幌筵岛地质年代座火山形成大型岛屿实例

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  • There is a huge amount of fossil evidence. And its walls provide a record of three of the four major periods of the Earth's geologic time.

    这里大量化石而且大峡谷峭壁上我们提供了四个主要地质时期中的三个时期的信息。

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  • For the response of the ice sheets to a still warmer world, older periods in geologic time offer parallels.

    对于冰川世界回应以前的地质时期也出现过相似状况。

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  • You can't discuss climate change, Prof. Laughlin says, without looking backward across geologic time.

    劳克林,在讨论气候变化问题时,必须对比过去地质时期的情况。

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  • "It must have happened in a matter of weeks, " says Elrick. "What we see here is the death of a peat swamp, a moment in geologic time frozen by an accident of nature."

    Elrick说:“当时那场变故一定几周内发生的,我们现在所看到的这泥炭沼泽遗迹,在地质学时间上只是大自然一次瞬间意外的快照。”

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  • Although rare on human timescales, over geologic time earthquakes are frequent in the area.

    影响地质时期的大地震虽然人类的历史中非常罕见,但地区地震活动自古以来就非常频繁。

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  • Though they seem to creep along at impossibly slow speeds, in geologic time glaciers are relatively fast, powerful landscape artists that can carve out valleys and fjords in just a few thousand years.

    尽管它们的变化速度似乎缓慢的不可思议,但相对地质时期来说,冰川是个快速强大的雕刻艺术家,仅在数千年时间内雕刻出了大量的山谷峡湾

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  • Over geologic time, they have ebbed and flowed with natural climate cycles.

    整个地质时期它们随着自然地气候循环减小或大。

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  • As he explains, the Geologic Time Scale is largely based on the stratigraphic record.

    解释说地质时间尺度很大程度上基于对地层的记录。

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  • Over geologic time, increased pressure from the overlying rocks changed the layers of organic material into coal.

    经历了代地质期,上层岩石逐渐增大压力改变了无机矿物的构成,最终形成了煤。

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  • On a geologic time scale, the recent, human-induced planetary warming has been quite sudden, and the huge ice sheets have only just started to respond.

    地质时间尺度来看近来人类活动引起的地球变暖现象相当突然的,巨大冰盖刚刚开始有所反应。

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  • In fact, only 18, 000 years ago (a blink of an eye in geologic time), twice this amount of ice covered the northwest of North America.

    事实上在18000年前两倍于现在南极的覆盖了北美的西北部

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  • Just at this time I left Caen, where I was then living, to go on a geologic excursion under the auspices of the school of mines.

    就是时期离开了,这个我生活地方,我所在学院资助进行旅行

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  • The time section made by mathematically simulating a geologic model offered from drilling data conforms better with factual data.

    根据钻井资料提供地质模型数学方法进行模拟所得的时间剖面实际资料有较好的吻合

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  • Geologic time unit, rock stratigraphic units and time stratigraphic unit.

    地质年代单位岩石地层单位年代地层单位。

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  • The longest division of geologic time, containing two or more eras.

    地质最长一段分期两个更多的代。

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  • Engineering practices show that lining hanging concrete in time is an important technique to make sure of the construction safety of large-scale surge tank project at complex geologic condition.

    工程实践表明跟进衬砌悬挂混凝土保证复杂地质条件下大型竖井工程施工安全重要技术措施。

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  • A hiatus is the total interval of geologic time.

    一个沉积间断地质时间间隔

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  • Igneous rock reservoirs are characterized by their extensive distribution, long geologic time and no exclusiveness of rock types.

    火成岩油气储层具有分布范围广地质时代岩石类型专属性。

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  • Hence it is considered that a galactic year can be based on to institute an ideal geologic time scale in which a galactic year is an era.

    银河建立理想地质代表的基础,每银河年就是

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  • They are the result of geologic processes within the earth and can happen in any weather and at any time during the year.

    地震地质运动结果不管天气如何,一年四季无论何时都有可能发生地震。

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  • Therefore, geologic conditions and environmental protection must be concerned simultaneously at the time of planning, designing and construction of a project.

    建议工程技术人员进行工程规划设计施工中既考虑地质条件制约因素,更要注意保护地质环境

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  • The good response relationship between time-frequency spectrum and geologic structural feature provides straightforward foundation for seismic-geologic fine interpretation.

    频谱地质结构特征之间良好响应关系地震地质精细解释提供了直观依据

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  • Yunnan Province is rich in mineral resources and at the same time mining of the mineral resources result in serious geologic environment problem.

    前言:云南省矿产资源丰富同时矿产资源开采带来严重地质环境问题。

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  • Yunnan Province is rich in mineral resources and at the same time mining of the mineral resources result in serious geologic environment problem.

    前言:云南省矿产资源丰富同时矿产资源开采带来严重地质环境问题。

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