随着“勇气号”在小丘中攀爬的越来越远，进入不同的地质世，这故事也许需要再次修改。
As Spirit climbs further into the hills and thus into different geological epochs, the story could change again.
相比于大陆冰川沉积物，海洋沉积物提供了更完整的更新世时期的地质记录。
Ocean sediments presented a much more complete geologic record of the Pleistocene than continental glacial deposits did.
最后一次冰川作用的漂浮物沉积在最近的其中一个地质时期——更新世，这段时期从180万年前持续到1万年前。
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.
全新世的沉积物中含有较新的动植物遗迹，因此很容易从地质学上区分这两个时期。
Holocene sediments contain remnants of more recent plants and animals, so it's pretty easy to differentiate geologically between these two Epochs.
在20世纪后期，地质学家和海洋学家在研究海洋沉积物时发现了能够证明海洋变暖和变冷的化石，并修正了这一观点。
This idea was modified in the late twentieth century, when geologists and oceanographers examining oceanic sediment found fossil evidence of warming and cooling of the oceans.
19世纪晚期，在地质学家对这些冰川沉积进行定位的时候，他们意识到有好几个漂流层，位置较低的对应的是更早的冰川期。
As geologists mapped glacial deposits in the late nineteenth century, they became aware that there were several layers of drift, the lower ones corresponding to earlier ice ages.
更新世浅层地质为层状砂质砾石，偶有细沙层。
The Pleistocene superficial geology comprises well-bedded sandy gravels with occasional thin beds of sand.
但是，我们真的迎来了一个新的地质时代，所谓的“人类世”吗？
But have we really ushered in a new geological era, the so-called Anthropocene?
我们现在生活在人类世，用人类来决定地质年龄的世界。
We now live in the Anthropocene, a geological age of mankind's making.
在18世纪末期，地质学尚处于起步阶段。
如果我们确实迈进了新的世，那么是什么时候开始的，什么时候人类的影响会达到地质学重要意义的程度？
If we have indeed entered a new epoch, then when exactly did it begin? When did human impacts rise to the level of geologic significance?
据美国地质调查局，莫诺湖是一个更大的、称为罗素湖的更新世湖的遗迹。这里显示了湖面上的日出。
Mono lake is what remains of a much larger Pleistocene lake known as lake Russell, according to the U.S. Geological Survey. Here, the lake is shown at sunrise.
兴文县是僰族和苗族的故乡。因其独具一格的喀斯特地貌特征，使其享有中国19世纪地质公园奇葩之一的美誉。
Home to both the bo and Miao nationalities and specific karst formations, Xingwen's unique characteristics make it an exotic flower among the 19 World Geoparks in China.
人类世的地质编录将因此显示，通过人类的活动，地球的生态系统被同质化了。
The fossil record of the Anthropocene will thus show a planetary ecosystem homogenised through domestication.
18世纪的詹姆斯·赫顿(James Hutton)开辟了地质时代的深度，现在这个研究范围已经很窄了。
In the 18th James Hutton opened up depths of geological time that dwarf the narrow now.
地质学家们称，我们已经生活在人类纪——人的时代，而不是仍将人类放在约1000年前开始的特别稳定的年代——全新世。
Rather than placing us still in the Holocene, a peculiarly stable era that began only around 10, 000 years ago, the geologists say we are already living in the Anthropocene: the age of man.
泥石流沉积物作为晚更新世一种特殊沉积类型，是在特定的地质过程和地理环境中形成的。
As a special deposit type, debris flow deposit forms in specifically geological structure and geographical environment.
可就在同一世纪稍晚些时候，地质学就安全了，但是有关进化的理论依然遭到谴责，并被禁止教授。
Later in the same century, geology was safe, but theories of evolution were condemned and the teaching of them forbidden.
第三，我们已经收集到有关始新世时代植物灭绝的地质证据。
And third, there is geological evidence for plant extinctions in the Eocene.
加州大学的地质年代学家们发现，戈纳石器正是在标志更新世开端的那次磁场逆转发生之前制造的。
Geochronologists at the University of California found that the stone tools from Gona were made just before the magnetic field shift which began the Matayama epoch.
在我国上白垩统普遍见到，其地理分布广，地质时限短，可作为晚白垩世的标志分子，在地层划分对比中举足轻重。
It can be as a marker member of Late Cretaceous for its broad distribution in geography, but short duration in geologic period and well used for strata classification and correlation.
21世纪地质找矿既是地质技术问题，又是当代地质经济问题。
The geological prospecting in the 21st century is both the geological technological problems and geological economic problems of our time.
宁乡式铁矿是我国重要的铁矿类型，地质勘查完成于20世纪50年代。
Ningxiang type iron deposit, whose geological prospecting of was finished in the 50's of 20th century, is an important kind of iron deposits in China.
以石油钻井和地质岩心钻探为例，论述了进入21世纪后，石油钻井和地质岩心钻中钻探技术研究与应用的新进展。
Taking the oil well drilling and geological core drilling for examples, the recent advances of drilling technology at the beginning of the 21st century are briefly described.
20世纪中叶，中国地质学尤其是大地构造学发展壮大的过程中，出现了一次学术繁荣的局面。
In the middle period of 20 century, during the development of Chinese geology, one academic prosperous situation had arisen in geotectonics.
“人类世地质学”即是这种科学走向的最好概括。
20世纪古生物的一系列发现和研究，证明了寒武纪是一个最能激发人们想象力的地质时代。
A series of discoveries and studies on ancient life forms in the 20th century demonstrated that Cambrian was a geological period full of the wildest imagination.
20世纪古生物的一系列发现和研究，证明了寒武纪是一个最能激发人们想象力的地质时代。
A series of discoveries and studies on ancient life forms in the 20th century demonstrated that Cambrian was a geological period full of the wildest imagination.
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