- 更多网络例句与钙长玄武岩相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Working from outside the basin in to the Mare Basalts, they find the surface composition changes from Feldspathic breccias (Feldspar is a rock that crystallizes from magma) to shocked Anorthosite (a type of feldspar that makes up the light areas of the moon), to unshocked crystalline anorthosite, to high Calcium pyroxene (a rock made of silicate minerals) and pyroclastic rocks in the center.
研究发现:从盆地外边到盆地内部的玄武岩海(盆地内部的熔岩形成的地质结构),月球表面的地质结构依次是:长石质的角砾岩(长石是火山熔岩结晶形成的岩石)、经过冲击的粒状火成岩(构成月球阳面的一种长石)、没有经过冲击的粒状火成岩结晶体、高钙辉石(一种由硅酸盐构成的岩石),最中心的位置是分裂状的火山岩石。
-
Based on plentiful isotopic dating data and geological studies, the authors, in this paper, discuss the geological meanings of the two isotopic ages given by Lapierre et al., and conclude:① Mesozoic volcanic activities in Zhejiang are most frequent in 130~83 Ma, that is, from the early to late Cretaceous but not the late Jurassic;② The Jiande and Moshishan groups are nearly in the same period and not in an upper—lower stratigraphic relationship with each other;③ The period of 110~100 Ma is a transitional stage from the early high-K calc-alkaline dacite—rhyolite associated with diorite—granodiorite) to the late basalt—rhyolite(associated with K-feldspar granite—alkali granite).
本文就Lapierre等文中124 Ma和97 Ma两个年龄的地质意义、幕次划分以及浙西与浙东火山岩时代对比作出评论,并厘定浙江中生代火山岩时代归属,提出:①浙江中生代火山活动时代为132~83 Ma;②浙西建德群与浙东磨石山群火山岩并不存在上下关系,地质接触关系、古生物组合和大量同位素定年数据都不支持Lapierre等的浙西与浙东火山活动幕次的对比方案;③ 110~100 Ma为早期高钾钙碱性英安岩—流纹岩(伴生闪长岩—花岗闪长岩)向晚期玄武岩—流纹岩(伴生钾长花岗岩—碱性花岗岩)过渡的转折期。
-
Below 1100℃, the amount of argon released from irradiated samples is in an order of: plagioclase rock>striped migmatite>granite>garnetiferous mica schist>calciummuddy shale>basalt.
在1100℃之前,辐照样释放的氩气量按顺序排列为:斜长岩>条带状混合岩>花岗岩>含石榴石云母片岩>钙泥质页岩>玄武岩。
-
The Paleoproterozoic Beidahe Group-complex remains as continental shivers in the interior of the North Qilian orogen. In its early stage of development, there occurred abundant amphibolite. The protolith of the amphibolite is basalts. The Alk-∑FeO-MgO plot, REE features and Rittmann index show that the protolith belongs to the calc-alkaline suite and exceptionally shows the subalkaline character. The rock is characterized by higher Al2O3 and ∑FeO and lower Mg#, indicating that it has a higher degree of compositional evolution and that the formation of volcanic rocks is related to activation of older crust. Highly fractionated REE patterns and amphibolite on the Ti-Zr-Y plot, Ni-FeO/MgO plot and Ta/Yb-Th/Yb plot all indicate the characteristics of volcanic arcs and active continental margins. On the geochemical diagram of basalt, the overall REE features are in the main analogous to those of calc-alkaline island-arc basalt, with Sr87/Sr86=0.71617–0.72033,Nd143/Nd144=0.512414–0.512495 and εNd=–2.79 to –4.37,εSr=245.78–305.3, showing that the magma was derived from the crust or subjected to contamination with the lower crust below the continent.
提要:以大陆碎块形式残存于北祁连造山带内部的古元古代北大河岩群早期发育有大量的斜长角闪岩,其原岩为玄武岩,Alk—∑FeO—MgO图解,REE特征,里特曼组合指数等均显示斜长角闪岩属钙碱性系列范围,个别显示弱碱性,斜长角闪岩具有较高的Al2O3,∑FeO和低的Mg#,这些特点反映其成分演化程度较高,表明火山岩的形成与古老地壳的活化有关,有较强分异的稀土元素分配模式,在Ti—Zr—Y图,Ni—FeO/MgO图解和Ta/Yb—Th/Yb图解上斜长角闪岩均显示火山弧或活动大陆边缘的特点,在玄武岩的地球化学形式图,稀土元素整体特征与钙碱性岛弧玄武岩基本相同;87Sr/86Sr=0.716 17~0.720 33, 143Nd/144Nd=0.512 414~0.512 495,εNd=-2.79~-4.37。
- 更多网络解释与钙长玄武岩相关的网络解释 [注:此内容来源于网络,仅供参考]
-
anorthite basalt:钙长玄武岩
钙长安山岩 anorthite andesite | 钙长玄武岩 anorthite basalt | 钙长橄榄岩 anorthite peridotite
-
anorthite peridotite:钙长橄榄岩
钙长玄武岩 anorthite basalt | 钙长橄榄岩 anorthite peridotite | 钙长石岩 anorthite rock
-
anorthite andesite:钙长安山岩
钙长石,钙斜长石 anorthite | 钙长安山岩 anorthite andesite | 钙长玄武岩 anorthite basalt
-
bytownite anorthosite:倍长斜长岩;钠钙斜长岩
"bytownite","倍长石;钠钙长石" | "bytownite anorthosite","倍长斜长岩;钠钙斜长岩" | "bytownite sakalavite","倍长玻英玄武岩;钠钙玻英玄武岩"
-
Holocene epoch:全新世
英语国家的岩石学家沿用哈克(Alfred Harker)的方式,把第三纪(Tertiary Period)和全新世(Holocene Epoch)的火成岩划分为钙碱性的和碱性的两个系列. 碱性岩中有许多具有罕见的名称,但是比较常见的碱性玄武岩、正长岩和响岩都包括在这一类里.
-
fibre fascicle:羽束(珊瑚)
钙长榴橄玄武岩 fiasconite | 羽束(珊瑚) fibre fascicle | 纤维变晶状 fibroblastic
-
fiard:低峡湾
臭砂岩(含硫化氢及沥青质的) fetid sandstone | 低峡湾 fiard | 钙长榴橄玄武岩,钙长白榴碧玄岩 fiasconite
-
bytownite sakalavite:倍长玻英玄武岩;钠钙玻英玄武岩
"bytownite anorthosite","倍长斜长岩;钠钙斜长岩" | "bytownite sakalavite","倍长玻英玄武岩;钠钙玻英玄武岩" | "bytownite-tholeiite","倍长拉斑玄武岩;钠钙拉斑玄武岩"
-
bytownitite:倍长岩;钠钙长岩
"bytownite-tholeiite","倍长拉斑玄武岩;钠钙拉斑玄武岩" | "bytownitite","倍长岩;钠钙长岩" | "bytownorthite","倍钙长石"
-
DOLERITIC BASALT:粒玄质玄武岩
450 CALCALKALINE BASALT 钙碱性玄武岩 | 460 DOLERITIC BASALT 粒玄质玄武岩 | 470 ESSEXITE BASALT 碱性辉长玄武岩