岩浆

This paper demonstrates some rock genesis discrimination about Archean gray gneiss based upon REE geochemistry.

本文以稀土元素地球化学理论论证了北京、辽吉地区某些花岗岩为岩浆成因而非混合岩构成的"地层"。

According to the isotopic age data of inherited zircons in igneous and metamorphic rocks which occur at the surface and are derived from deep crust of the North China, Yangtze blocks and Qinling-Dabie orogenic belt, the paper is mainly reports some new information of Archean rocks and briefly discusses its geological significance.

本文根据华北和扬子陆块及秦岭大别造山带地表和深部出露的各种岩石中发现的继承性锆石的测年数据，报道了太古宙基底和岩浆事件的新信息，并简要地论述其地质意义。

The thermal boundary layer had previously been a part of the mantle that had been metasomatized and enriched by fluids/melts from the asthenosphere.

这种热边界层在发生岩浆作用之前是被来自软流圈深部的流体和/或熔体交代富集过的地幔。

Then the thinning lithosphere could be thickened again by asthenosphere top descending, magma underplating, compressing and so on.

继而，已经减薄的岩石圈可以通过软流圈顶面下降、岩浆底侵作用、或挤压等机制而再次加厚。

The main mechanism leading to the alteration in thermal structure is the magmatic underplating, thermo-mechanic erosion and chemical erosion related with raise of asthenosphere interface.

引起华北东部中生代岩石圈热结构变化的主要机制是岩浆底侵作用和与软流圈上涌有关的热-机械侵蚀和化学侵蚀。

By the single zircon U Pb dating method, the quartz syenite porphyny yielded an age of concordance (1 731±29)Ma, and the aegirine augite syenite and syenogebbro are dated upper cocordi...

应用单锆石U Pb法测定年龄，石英正长斑岩谐和年龄为( 1731± 2 9)Ma ，霓辉正长岩、正长辉长岩上交点年龄分别为( 1644± 14)Ma、( 1750± 65)Ma.1650～ 170 0Ma是碱性岩浆活动热构造事件的标志，石英正长斑岩被中元古代晚期的高山河组不整合覆盖，故以 1650～ 170 0Ma作为熊耳群的上限。1650～ 170 0Ma热构造事件是华北地块重大地质事件，有可能是进一步划分中元古代重要的年龄界限。

And thus, the distribution of fractional melting layers can be lined out according to the range of surface hydrothermal systems.

而对于其它区域，比如滇西腾冲地块则由已经存在第四纪火山的浅层岩浆房提供热源。

Armed with this information and further analyses, Rumble, lead author Bekker, and colleagues propose the following scenario today in Science . Early in Earth's history, volcanic eruptions spewed massive amounts of sulfur dioxide into the atmosphere, where UV sunlight broke down the gas and created the odd sulfur isotope ratios. The sulfur descended with the rain and accumulated into sedimentary beds on the sea floor. Once there, superheated water from geothermal vents at various locations on the sea floor cooked the sulfur into sulfide. Finally, nickel-bearing magma welled up from Earth's mantle, combining with the sulfide to form nickel sulfide and encasing the compound inside volcanic rock called komatiite.

凭借这份资料和进一步的分析，朗布尔、研究论文的第一作者贝克及同事们今天在《科学》杂志上提出了如下的推测：在地球早期的历史上，火山爆发将大量的二氧化硫气体喷射到空中，太阳的紫外线将其分解，产生了奇特的硫同位素比值，这种硫随雨降下，积存于海底沉积层中；一旦到达海底，海底各处的地热出口所产生的温度过高的水把硫加热成硫化物；最终含有镍的岩浆从地幔中涌出，跟硫化物结合形成硫化镍，并将硫化镍包裹在一种叫做"科马提岩"的火山岩中。

In the Cathodoluminescence images the zircons extracted from the dioritic gneiss show good crystal morphology and clear oscillatory zoning, as is the case of magmatic zircon.

在阴极发光图像中，片麻岩中的锆石具有较好的晶形，并显示出清晰的岩浆锆石韵律环带结构。

Done this task it is a continuous task in accordance with step is to complete the focus is dying in front of him that archaeologists and archaeologists around the altar that which step is to find an Ancient Artifact to take that a little bit difficult for the elite around the circle of 48 odd Artifact center needs a jump in the lava above it in order to get to see your task, but the process should be completed in...

做过这个任务这是个连续任务按照步骤是能完成的重点是他前面那个快死的考古学家和考古学家身边的那个祭坛其中有一步是让找一个远古神器拿那个有点难度周围一圈48的精英怪神器在岩浆中心需要跳到那上面才能拿不过看你的任务进程应该是完成了的。。。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。