rapakivi
- rapakivi的基本解释
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环斑花岗岩
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环斑状
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奥环状花岗岩
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The volcanic rocks of the Xiong'er Group is also widespread in the Baoji and Lvliang area and also appear as 1.75Ga-old mafic dyke swarms, A-type granites, later anorthosite and rapakivi granites (1.75-1.70Ga), and alkaline granitoids (~1.65Ga). These intrusive rocks are assumed to have genetic link to the volcanic rocks of the Xiong'er Group.
熊耳期岩浆活动在华北陆块广泛分布,除了陕西宝鸡附近及山西吕梁地区的火山岩,还广泛分布1.75Ga前后的基性岩墙群、A-型花岗岩以及比熊耳群稍晚的斜长岩、奥长环斑花岗岩等(1.75-1.70Ga)和碱性花岗岩类(~1.65Ga)。
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Dated from Proterozoic to Mesozoic, they have poly-circle characteristics, found from one tectonic circle to another, which is very rare in the worldwide orogens. This reveals that the orogen and stable area of the world, the mantle and crust states of the Proterozoic and Phanerozoic are different in tectonic evolvement and dynamic process and that the rapakivi granite of the Qinling-Kunlun is a kind of orogenic granite different from the stable area of the Proterozoic.
它们出现在每一个大的造山旋回晚期,即向另一个构造旋回的转折期,这在世界造山带中是十分罕见的,反映出世界上造山带与稳定区元古宙和显生宙的地慢与地壳状态是不一样的,有着不同的构造演化历史和动力学过程,表明秦岭-昆仑地区的环斑花岗岩是一种有别于元古宙稳定区的造山型环斑花岗岩。
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Research on the main rock-forming minerals of Middle Proterozoic Subera Yingfeng rapakivi granite in the North Qaidam Basin tectonic belt indicates the magmatic body exhibits pyterlitic rapakivi texture,and each main mineral is polygenetic.K-feldspar mainly takes the form of oval phenocryst,and exsolved albite stripe is well-developed.
柴北缘构造带中元古代鹰峰环斑花岗岩主要造岩矿物的研究结果表明,该岩体具pyterlitic型环斑结构,各主要矿物均具多世代特征。
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In fact, the NCC was dominated in the late Palaeoproterozoic by an extensional-tectonic regime, associated with the development of an aulacogen system, anorogenic magmatism (rapakivi granites, anorthosites, gabbros, granites and pegmatites), with the emplacement of large-scale mafic dyke swarms and with the uplift of the early metamorphic basement or the tectonothermal events of the retrogressive metamorphism.
事实上,在古元古代末期华北克拉通以伸展-裂解构造为主,表现为拗拉谷系发育、非造山岩浆活动(环斑花岗岩、斜长岩、辉长岩、花岗岩类及伟晶岩脉等)、大规模基性岩墙群侵位以及早期变质基底隆升或退变质构造热事件等。
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According to field investigation, the Yingfeng rapakivi granite is formed in mid-Proterozoic and located between shear belts as a lentiform in the structural belt of north margin of Qaidam basin.
野外调查表明,鹰峰环斑花岗岩体形成于中元古代,位于柴北缘构造带,呈透镜状夹持在剪切带间。
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- 更多网络解释与rapakivi相关的网络解释 [注:此内容来源于网络,仅供参考]
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rapakivi aplite:奥长环斑细晶岩
奥长环斑岩 rapakivi | 奥长环斑细晶岩 rapakivi aplite | 奥长环斑正长岩 rapakivi syenite
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rapakivi:奥长环斑花冈岩;环斑状的
rap-rig 速立脚手架 | rapakivi 奥长环斑花冈岩;环斑状的 | rapakivi-syenite 环斑正长岩
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rapakivi:奥环斑花岗岩
rankers 薄层土 | rapakivi 奥环斑花岗岩 | rapid 急流急滩
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rapakivi:奥长环斑岩
骆特定律 Raoult's law | 奥长环斑岩 rapakivi | 奥长环斑细晶岩 rapakivi aplite
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rapakivi:环斑花岗岩 环斑状 奥环状花岗岩
rap-rig 速立脚手架 | rapakivi 环斑花岗岩 环斑状 奥环状花岗岩 | rapakiviaplite 环斑细晶岩
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