formation age造句
例句与造句
- The formation age and tectonic setting of the kangding complex in the western margin of the yangtze block
扬子陆块西缘康定杂岩的形成时代和构造环境 - According to granite ages cutting ruptures , mineralized quartz veins ages corresponding to fold deformation and formation ages of bilateral faulted basin , deformation age are limited , that are 100 ~ 65ma for one and form 65ma to the present for two and three
根据断裂截切的花岗岩体年龄、同期褶皱变形的含矿石英脉年龄以及断裂两侧断陷盆地的形成时代，大致限定第1期变形时代为100 65ma ，第2 、 3期变形时代为65ma现今。 - The results of combined internal mineral separates and whole - rock sm - nd isochron age for gabbro dikes from : luobusha , angren and xiubugabu in yarlung zangpo ophilite zone are 177ma , 166ma and 173ma respectively . the 4lar - 39ar step heating spectra of rikangba ophiolite suggest that its formation age is also isoma . it indicates that there was a stronger regionally inagmatism during middle - early jurassic , and the time of i75ma was the main period of the magmatic event of yarlung zangpo ophilite
对邬郁盆地嘎扎村组火山岩剖面的年代学研究表明，该区后碰撞期火山岩的~ ( 40 ) ar - ~ ( 39 ) ar年龄为12 ? 14ma ，侵入其中的花岗岩脉的~ ( 40 ) ar - ~ ( 39 ) ar年龄为10 . 84ma ，与冈底斯西段前人研究资料对比，认为冈底斯带后碰撞火山岩时代有自西向东逐渐年轻的趋势。 - Using isotopic ( d , 18o 14c ) geochemical methods , this paper has studied the genetic relationship between the isotopic composition of meteoric water and that of underground hot water , analyzed the supply source of the kaifeng geothermal field and the generation of the geothermal water , and calculated its formation age
摘要应用同位素( d 、 18o 、 14c )地球化学方法，研究大气降水和地下热水中同位素组成之间成因关系，分析开封地热田中地热水补给来源方向和地热水的形成，计算其生成年龄。 - The author suggests that for those kinds of samples like ophiolite which formed in the underwater environment and had very low potassium content , it should be better to determine their formation age by the sm - nd method as it is less sensitive to alteration . however , the step heating 40ar - 39ar spectra could often reflect the influence of later geological events on isotope system
认为对蛇绿岩这类形成于水下环境，含钾极低的样品，其岩体的形成年龄宜选用对蚀变影响反应不明显的sm - nd方法测定；但阶段升温~ ( - It's difficult to find formation age in a sentence. 用formation age造句挺难的
