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Contaminants that occur together naturally in groundwater under certain geological conditions may heighten health risks for millions of North Carolinians whose drinking water comes from private wells,...
Evapotranspiration (ET) is an essential element of the hydrological cycle and plays a significant role in regional and global climate through the hydrological circulation. Estimation and monitoring of...
利用地层中包含的大量微体化石,结合沉积学分析,恢复了澳大利亚North Carnarvon盆地中生代的古气候与古环境,综合中生界优质烃源岩发育的古地理背景,探讨了其发育模式。研究结果表明,中生代不同层段微体化石属种及其相对含量的变化,对应于古气候与古环境的变迁;古气候呈干旱-湿润-干旱-湿润的旋回性变化;早三叠世-晚三叠世为水退过程,晚三叠世-晚白垩世整体为水进过程。中生界可识别出4个沉积相类型:...
The Shan 2 Member, Shan 1 Member and He 8 Member of the Mid–Late Permian Shanxi and lower Xiashihezi formations, in the southeastern Ordos Basin, together comprise ~150 m of deltaic deposits. This seq...
近日,中国地质大学资源学院和地质过程与矿产资源国家重点实验室李建威教授团队在国际地球化学顶级期刊发表题为《Hydrothermal reequilibration of igneous magnetite in altered granitic plutons and its implications formagnetite classification schemes: Insights fr...
Exceedingly well-preserved bird fossil specimens dating 50 million years represent a new species that is a previously unknown relative of the modern-day ostrich, according to a new paper co-authored b...
Scientists have discovered the first-ever fossil evidence of monkeys from the North American landmass: a 21-million-year-old specimen that changes our understanding of the biological history of the co...
Seven piston cores were collected from the seafloor ~250 km south of Minamitorishima Island in the western North Pacific Ocean during the cruise KR13-02 of R/V Kairei; in some portions of cores PC04 ...
We present a synthesis of the active tectonics of the northern Atlas Mountains, and suggest a kinematic model of transpression and block rotation that illustrates the mechanics of this section of the ...
A geoethical approach to geodiversity allows better understanding of the value of abiotic nature and enhances its conservation and development. Our basic assumption is that even during an economical c...
Recently, how to quantitatively estimate the growth rate of continental crust is an enigmatic issue. With the development of ICP-MS technology, the U–Pb dating and Lu–Hf isotopic compositions of detr...
In March 2011, an accident at the Fukushima Daiichi nuclear power plant (FNPP-AC) was caused by the Tohoku earthquake and tsunami. Here we show the distribution of artificial caesium-134 and -137 (13...
The Industrial Minerals Association - North America (IMA-NA) is the representative voice of companies which extract and process a vital and beneficial group of raw materials known as industrial minera...
The groundwater table depths from 1982 to 1986 of 58 unconfined wells in North China Plain(NCP) were analyzed using principal component analysis method. Results showed there were mainly three hydrogra...
Using the Landsat 5 TM images in 2002 as source data,the paper constructed individual tree biomass models of seven principal species based on the data from field surveying and fixed Plots in Tahe and ...

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