是什么古代克拉通地质结果相关的金伯利岩管包含经济钻石存款?- 江南体育网页版- - - - -地球科学堆江南电子竞技平台栈交换 最近30从www.hoelymoley.com 2023 - 07 - 10 - t13:13:32z //www.hoelymoley.com/feeds/question/2509 https://creativecommons.org/licenses/by-sa/4.0/rdf //www.hoelymoley.com/q/2509 13 是什么古代克拉通地质结果相关的金伯利岩管包含经济钻石存款? user889 //www.hoelymoley.com/users/0 2014 - 09 - 21 - t01:43:53z 2016 - 05 - 10 - t09:39:17z < p >据澳大利亚地质调查组织论文< a href = " http://www.ga.gov.au/image_cache/GA5392.pdf " rel = " nofollow noreferrer " >金伯利岩和lamproite钻石管道< / >(杰奎斯,1998),经济存款volcanically-formed钻石是< / p > < blockquote > < p >限于古代克拉通(通常> 2. Ga)或cratonised省份超过1.8 Ga < / p > < /引用> < p > < em > Ga =几十亿年< / em > < / p > < p >和累积cratonised带年轻很少包含经济存款。< / p > < p >这种关系中可以看到< a href = " http://www.geus.dk/minex/minex-22-uk.htm " rel = " nofollow noreferrer " >格陵兰矿产勘查通讯< / >地图:< / p > < p > < img src = " https://i.stack.imgur.com/tvPOh.gif " alt = "在这里输入图像描述" > < / p > < p >是什么古代克拉通地质和地球化学的结果包含经济重要的钻石的金伯利岩管相关存款吗?< / p > //www.hoelymoley.com/questions/2509/-/2846 # 2846 4 user889回答的是什么古代克拉通地质结果相关的金伯利岩管包含经济钻石存款? user889 //www.hoelymoley.com/users/0 2014 - 11 - 19 - t11:02:51z 2014 - 11 - 29 - t11:17:22z < p >科学日报的文章< a href = " http://www.sciencedaily.com/releases/2012/01/120123094523.htm " rel =“nofollow”>如何diamond-bearing金伯利岩到达地球的表面:酸化提供了推力< / > (Ludwig-Maximilians-Universitaet慕尼黑(LMU))的研究报告完成唐纳德Dingwell教授领导的一个国际研究小组主任LMU地理和环境科学。< / p > < p >他们国家,古代克拉通地壳岩浆提供了硅酸盐矿物,导致最初的基本变得更加活跃,当他们被迫通过管道,它使活跃的岩浆快速行动。与作者描述,岩浆上升速度的增加,越硅酸盐收集(乘火车),增加溶解硅酸盐浓度——直到释放美元的数量\ mathrm{有限公司}_2 $和$ \ mathrm {H_2O} $大大增加的速度上升,正如作者像火箭的状态。< / p >

A more thorough geochemical description is provided in the article Kimberlite ascent by assimilation-fuelled buoyancy (Russell et al. 2012), the proposed model mechanism as the original kimberlite melt to be carbonatite-like - poor in silica content, this magma assimilates materials during its accent through the upper mantle and crust, becoming more silicic, causing the $\mathrm{CO}_2$ solubility to decrease, reducing density and increasing buoyancy, causing the magma to accelerate.

In terms of why cratonic crust is the locale of many diamond rich kimberlite pipes is described from Professor Dingwell as being due to the silica rich cratonic crust is thick enough to provide the magma to make contact with the silicate rich minerals therein.

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