碱性辉长岩
- 与 碱性辉长岩 相关的网络例句 [注:此内容来源于网络,仅供参考]
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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。
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The uplifting belt is composed of metasandstone, marble, overlying thick stromatolite (Jinyanshan Group of Jixian System). Metamorphic rocks of 450Ma± occur in both south and north active margin. Post-collision bimodal volcanic rocks and A-type granite occur in the middle and the north side;(4) Apa-Mangya tectonic melange belt consists of ophiolite (including ultramafic rocks, gabbro, plagiogranite and basalt) and flysch and eclogite of late Ordovician.
隆起带为中元古界变砂岩、大理岩,上覆厚层叠层石灰岩,南北边缘有均为450Ma左右的变质岩,中部和北侧分布有碰撞后双峰式火山岩与碱性花岗岩;④阿帕—茫崖构造混杂岩带,由超镁铁质岩、辉长岩、斜长花岗岩、玄武岩等蛇绿岩残片与晚奥陶世复理石沉积和榴辉岩块组成。
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The lithological units of this province consist of brecciated mica-olivine pyroxenite pipe, olivine pyroxenite, pyroxenite, gabbro, basalt, diabase, alkali syenite and syenite dike, being dominated by basalt and diabase.
大火成岩省的组成单元主要包括隐爆角砾云母橄辉岩岩筒及辉橄岩、辉石岩、辉长岩、玄武岩、辉绿岩、碱性正长岩和正长斑岩岩墙等,其中以玄武岩和辉绿岩最为发育。
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Detailed geology- petrology-mineralogy study shows that late Triassic-early Jurassic granites can be divided into 4 groups: granodiorites, monzonitic-K syenogranites mainly, alkali feldspar-alkali granites and syenite, Middle Jurassic granites is composed of quartz diorites-granodiorites and monzonitic granites, the main rock type includes granodiorites and monzogranites; Early Cretaceous granites include alkali gabbro, alkali granites and granodiorites, and these rocks composed bimodal igneous rock group.
详细的地质-岩石矿物学研究表明,晚三叠-早侏罗世花岗岩可以划分成四种岩石组合,即花岗闪长岩组合、二长花岗岩—正长花岗岩组合、碱长花岗岩—碱性花岗岩组合和正长岩组合,其中以二长花岗岩—正长花岗岩组合为主;中侏罗世花岗岩由石英闪长岩-花岗闪长岩组合和二长花岗岩组合构成,岩石类型以花岗闪长岩和二长花岗岩为主;早白垩世出现了碱性辉长岩、碱性花岗岩和花岗闪长岩,构成双峰式火成岩组合。
- 推荐网络例句
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Singer Leona Lewis and former Led Zeppelin guitarist Jimmy Page emerged as the bus transformed into a grass-covered carnival float, and the pair combined for a rendition of "Whole Lotta Love".
歌手leona刘易斯和前率领的飞艇的吉他手吉米页出现巴士转化为基层所涵盖的嘉年华花车,和一双合并为一移交&整个lotta爱&。
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This is Kate, and that's Erin.
这是凯特,那个是爱朗。
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Articulate the aims, objectives and key aspects of a strategic business plan.
明确的宗旨,目标和重点战略业务计划。