古火山的
- 与 古火山的 相关的网络例句 [注:此内容来源于网络,仅供参考]
-
Deputy Governor of the Yan Sha pointed out that the Jingpohu is the world's largest volcanic lava Landslide Lake, with its unique natural and Huguangshanse decorated with the natural beauty of the world, said the unique landscapes, beautiful scenery attract many visitors the territory, Jingpohu nature not only created a wonderful natural scenery, and the formation of the waterfalls and ancient lava ice cave, and so has important scientific significance of geological heritage.
副省长于莎燕指出,镜泊湖是世界上最大的火山熔岩堰塞湖,它以别具一格的湖光山色和天然无饰的自然之美著称于世,其独特的地貌、秀美的风光吸引无数游客纷至沓来,大自然不仅造就了镜泊湖神奇的自然景色,而且形成了熔岩瀑布和古冰洞等具有重要科学意义的地质遗迹。
-
And that the timing of subduction of the paleo-ocean basin represented by the Guanzizhen ophiolite and formation of the volcanic-magmatic island arc is Late Cambrian to Early Ordovician.
反映以关子镇蛇绿岩为代表的古洋盆的俯冲作用和形成火山-岩浆岛弧的时限可能为晚寒武世或稍早。
-
Taking the eastern sag of the Liaohe basin where coal, oil and gas resources coexist and the Wangying borefield of the Fuxin basin where coalbed gas was first discovered, researched and developed in China as examples, we systematically discuss the control of volcanism on the lateral and vertical distribution of brown coal, flame coal and gas coal in the third member of the Paleogene Shahejie Formation and on the gas source conditions of each coal region. Both the methane released in the process of regional plutonic metamorphism and the additional methane generated by contact metamorphism are calculated. The physical properties and storage capacity of the coal beds changed greatly due to the formation of blackcoal and highlymetamorphosed crevice coal from igneous intrusion. The sealing capacity of intrusions with various occurrences such as dikes is highlighted.
以煤、油、气共生的辽河盆地东部凹陷和我国首次在矿井中发现、研究、开发煤层气藏的阜新盆地王营井田为例,系统地阐述了火山活动在古近系沙河街组三段对褐煤、长焰煤和气煤在平面及垂向分布的控制,进而导致各赋煤区气源条件的不同;估算了王营井田在区域深成变质过程释放甲烷气的基础上,接触变质作用所形成的附加甲烷量;指出由于岩浆侵入形成了天然焦和高变质裂隙煤,使煤层物理性质及储集能力发生了大的变化;强调了岩墙等不同产状的岩浆侵入岩体对煤层气的封闭作用。
-
Taking the eastern sag of the Liaohe basin where coal, oil and gas resources coexist and the Wangying borefield of the Fuxin basin where coalbed gas was first discovered, researched and developed in China as examples, we systematically discuss the control of volcanism on the lateral and vertical distribution of brown coal, flame coal and gas coal in the third member of the Paleogene Shahejie Formation and on the gas source conditions of each coal region. Both the methane released in the process of regional plutonic metamorphism and the additional methane generated by contact metamorphism are calculated. The physical properties and storage capacity of the coal beds changed greatly, due to the formation of blackcoal and highly-metamorphosed crevice coal from igneous intrusion. The sealing capacity of intrusions with various occurrences such as dikes is highlighted.
以煤、油、气共生的辽河盆地东部凹陷和我国首次在矿井中发现、研究、开发煤层气藏的阜新盆地王营井田为例,系统地阐述了火山活动在古近系沙河街组三段对褐煤、长焰煤和气煤在平面及垂向分布的控制,进而导致各赋煤区气源条件的不同;估算了王营井田在区域深成变质过程释放甲烷气的基础上,接触变质作用所形成的附加甲烷量;指出由于岩浆侵入形成了天然焦和高变质裂隙煤,使煤层物理性质及储集能力发生了大的变化;强调了岩墙等不同产状的岩浆侵入岩体对煤层气的封闭作用。
-
The varve was also well preserved in the sediment core of the Sihailongwan maar lake. Volcanic ash was recognized in the sediments of the Sihailongwan maar lake in the Longgang volcanic field of NE China. Volcanic ash studied is located in 70 cm below...
这一结果不仅表明天池火山历史时期大喷发的规模比原来估计的还要大,并且为建立千年以来四海龙湾沉积物及古气候演化的时间标尺提供了依据。
-
Hypogene high thermal or deep source epi-mesothermal condition and it is not only stressed the mantle source simply but also the crust-mantle;②in order to guid ore exploration better the artificial classification of uranium deposits should be broken and uranium ore-forming system strengthened;③much attention should be paid to searching the diabase-hosted rich uranium ore in strongly argillized cataclastic zone;④attention should be paid to the influence of basement of volcanic basin on the uranium ore formation that should be undstood both in feeling and theoretically through the ore propect process;⑤relation of red basin with uranium ore formation can be made clear from analyzing tectonics, paleo-climate and time and it is not only theoretically important but also helpful to uranium ore prediction;⑥crypto explosive pipe is an uranium ore, rich uranium ore host structure and it is the next goal for uranium ore exploration in east China.
摘要文章论述了华东火山岩型铀矿找矿值得重视的地质问题:①铀成矿既可形成于浅源浅成低温条件,也可形成于深源深成高温或深源浅成中低温条件,在强调深源时,不是简单地认为是幔源就可以了,还必须强调壳幔作用的地质过程;②打破人为的&类型&划分,加强&铀成矿系统&的研究,更好地指导找矿;③研究基性脉体与铀成矿问题应注意构造、岩石矿物成分、成因、蚀变与成矿3大问题,注意寻找泥岩化作用强烈的破碎辉绿岩脉中的富铀矿;④火山盆地基底对铀成矿的作用主要是提供铀源,将基底对铀成矿的影响从感性认识推向理性认识,有效地指导找矿;⑤红盆与铀成矿关系可以从构造、古气候及时间分析研究中得出结论,它不仅仅是一个理论问题,而且有助于铀成矿预测;⑥隐爆角砾岩筒是铀成矿、成富矿的重要储矿构造,是华东火山岩型铀矿找矿的新领域。
-
Mr Thompson's approach deals summarily with geology, Herdwick sheep, mining and the Celts and Norse-Irish who bequeathed many of the place names to the eight valleys that, according to Wordsworth's description, radiate "from the nave of a wheel", a nub of rock formed by volcanoes as powerful as Vesuvius.
汤普森概要地讲述了湖区的地质状况,湖区特有的赫德威克绵羊,采矿业,凯尔特人和古斯堪的纳维亚—爱尔兰人,以及他们遗留下来的八个河谷的名字,这些名字,华兹华斯描述道,&从轮子的中心发射出来&,像一块由维苏威那样强大的火山形成的溶岩石块。
-
He soils in Terbanggi and Gunung Madu derived from acid volcanic tuff sediments on an old coastal plain and developed under tropical humid conditions (mean annual temperatures: 23-32℃, mean annual precipitation: 2400 - 2600 mm) and Imperata cylindrica vegetation.
erbanggi和Gunung Madu地区的土壤是在热带湿润(年均温度23~32度;年均降雨量2400~2600毫米)、古滨海平原上酸性火山凝灰岩沉积物,植被为白茅的条件下形成的。
-
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。
-
The investigations into this remote area were difficult and the findings yielded many interesting theories, ranging from fairly plausible ideas about the arrival of a stony asteroid or comet, to more exotic hypotheses involving black holes, antimatter, mirror matter, volcanoes, ball lightning, and "geometeors," to really bizarre notions about crippled alien spaceships, laser beams from other planets and death rays secretly invented by Nikola Tesla.
这个偏远地区的困难和调查的结果产生了许多有趣的理论,从大约一个石质的小行星或彗星的到来比较可行的想法,更涉及黑洞,反物质,镜子的问题,火山,球状闪电,和异国情调的假设等&geometeors,&约削弱外来飞船真正奇怪的观念,激光束从其他行星和死亡射线秘密尼古拉特斯拉发明。
- 推荐网络例句
-
In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.
。但是,在否定句或疑问句里,这种带有"do"的方法表达的效果却没有什么强调的意思。
-
Go down on one's knees;kneel down
屈膝跪下。。。下跪祈祷
-
Nusa lembongan : Bali's sister island, coral and sand beaches, crystal clear water, surfing.
Nusa Dua :豪华度假村,冲浪和潜水,沙滩,水晶般晶莹剔透的水,网络冲浪。