题干中的15 plates是原文该句中的宾语,且该句的谓语中心词是consist of(由……组成),题干的谓语是are formed from,这意思一致,但题目用的是被动语态,表明答案可从原文该句的主语得到。主语中的top和solid并列修饰part of the mantle。选项C为该句的同义替换,故正确。 知识模块:仔细阅读...
2.A pastry shell, as of a pie or tart. 3.A hard crisp covering or surface:snow with a firm crust. 4.A hard deposit formed on the interior of a wine bottle as the wine matures. 5.Geology a.The solid, outermost layer of the earth, lying above the mantle. ...
Differentiation of crusts and cores of the terrestrial planets: les- sons for the early Earth? Precambrian Res. 10, 177-194.Solomon, S. C. (1980), Differentiation of crusts and cores of the terrestrial planets: Lessons for the early Earth?, Precambrian Res., 10, 177-194, doi:10.1016/...
Earth Planet. Sci. Lett. (1972) ScottM.R. et al. Rapidly accumulating manganese deposit from the median valley of the Mid-Atlantic Ridge Geophys. Res. Lett. (1974) VogtP. et al. Magnetic telechemistry of the oceanic crust Nature (1973) MorganW.J. Deep mantle convection plumes and pla...
before an erosive event and aging, the time between wetting and an erosive event, greatly influence the response of soil structure to raindrop impact. T... MJ Singer,I Shainberg - 《Earth Surface Processes & Landforms》 被引量: 76发表: 2010年 Response of biological soil crusts to raindrop...
In-situ LA-ICPMS analysis of rare earth elements of ferromanganese crusts from west Pacific Ocean seamounts西太平洋海山富钴结壳稀土元素(REE)组成原位LA-ICPM... Rare earth elements (REEs) and trace elements compositions of ferromanganese crusts collected from North-West Pacific seamounts were analyzed...
Arctic soil crusts are considered to be one of the most extreme habitat types on earth. Low temperatures and lack of water associated with a wide spectrum of disturbances have a dramatic effect on chemical and physical soil ecological properties (salinity, pH, conductivity and gas content). ...
The rare earth element (REE) geochemistry and Nd isotopic composition of marine ferromanganese crusts allow insight into their environment of deposition. We present REE along with major and trace element data from a suite of samples collected near an active hydrothermal site from the Mid-Atlantic Ri...
相关推荐 1Seriously-deformed zones appear ___. A.whenever the crusts move over mantleB.when the plates move towards each otherC.in the narrow boundaries where two plates meetD.to be the major topographical feature of the Earth 反馈 收藏...
maybe not for thousands of years, but could do so at some point) and active(showing signs of unreat up to and including erupting), But unless tectonic movements haveleft them far from the thinnest parts of the Earth, volcanoes can spring back to life.The largest eruption of the past 500...