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The wavelet variance verification also indicates that the first main period of the runoff of mountainous watershed in the Shiyang River Basin is 30years, and 22years and l5years are the second and third period respectively; 3 Then we also compared the total runoff of mountain watershed with climate factors of Wushaoling which station is in the mountain headstream area, such as precipitation and temperature, the data record that the correlation coefficient of annual runoff and precipitation variation over the upper reaches in the Shiyang River Basin is 0.61 ,which indicates precipitation is the main water recharge of the runoff.
石羊河流域出山口年径流的周期变化与乌鞘岭站年降水量和年均气温周期基本上都能在同一周期上下浮动,其中出山口年径流量与乌鞘岭山区年降水量相关系数为0.61,说明地表径流量主要是由山区降水补给;年径流量与山区年均气温变化呈0.28的反相关,说明该流域近50年来出山口径流与山区气温呈反比,即径流量随年均气温上升而减少,相关性暂时不十分明显。
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It was under weak extension during the early to middle Jurassic, with the stretching direction in N-S to NNE-SSW, and the stretching deformation mainly occurred in zones surrounding the Ordos basin. Under stable tectonical environment during the early to middle Jurassic,sediment good reseryoirs and seal-cap for Ordos Basin.
早中侏罗世,盆地处于弱引张应力环境,引张方向近N—S至NNE—SSW向,伸展变形主要发生在盆地周边地带,其发生与晚三叠世华南—华北地块沿秦岭造山带碰撞后的陆内应力场调整作用有关。
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Occurrence of tectonic heat event on late-Mesozoic in Ordos basin result from intensive thermal mobility of deep lithosphere on the late-Mesozoic,Thermal mobility of deep lithosphere in sourth region is stronger than in north region. Mantle occur underplating and thickness of lithosphere reduce, magma invasion and eruption occur on late-Mesozoic. Ordos basin be in weak extension environment on late-Mesozoic.
鄂尔多斯盆地中生代晚期构造热事件发生的根本原因在于中生代晚期岩石圈深部的热活动增强,盆地南部岩石圈深部热活动性更强,早白垩世鄂尔多斯盆地处于一种弱拉张的构造环境,地幔发生底侵作用,岩石圈减薄,发生岩浆侵入和喷发。
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We investigated the wild plant plasm resources under extreme enviroment al conditions at Talimu Basin,Zhunger Basin,on Tianshan Mountain,Kunlun Mountain and the Pamirs recent years,collected above 700 plant specimens,about 410 species They can be devided into 4 types,such as:halophyte resources,xerophyte resources,anti ultraviolet xerophyte resources and anti ultraviolet psychrophyte resource
近年来对塔里木盆地、准噶尔盆地、天山、阿尔泰山、昆仑山和帕米尔高原的极端环境野生植物资源进行了调查与收集,采集标本700余份,计410余种。
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Based on the Changxing Agricultural Geologic Environment Survey in Zhejiang Province, the paper marks the abnormal plot of some elements in the soil of surface layer in Meishan Basin, such as Cd、Hg、As、Ni、Pb、S、Br、Cl、F, and lays emphasis on the spatial distribution of the abnormalism, and also evaluates the environmental quality of soil and shallow groundwater preliminarily. The results show that enormous coal gangue was stacked with open-air as a result of coal mining of Meishan Basin.
文章以长兴县农业地质环境调查结果为依据,结合区域浅层、深层土壤及浅层地下水测试分析数据的统计特征,圈定了煤山盆地土壤中Cd、Hg、As、Ni、Pb等重金属和与采煤有关的S、Br、Cl、F等不同元素的地球化学异常图,重点分析了异常的空间表现特征,并对土壤、浅层地下水环境质量进行初步评价。
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Third, introducing the evaluation theory of ecosystem service, it set up an appraisable system of ecosystem service values of water resources, which is specially carried on to Haihe Basin too. Fourth, it coupled the evaluation theory of ecological service function and the holistic analysis model of water resources carrying capacity for a try, and then set up the analysis mechanism of regional macro-economy, water resources and ecological environment, which carried on a preliminary research of carrying capacity of ecological environment of water resources in Haihe Basin.
第二,建立了水资源承载能力分析模型,针对海河流域进行专门的分析,提出流域合理的经济社会发展规划参考目标,第三,引入生态系统服务功能价值理论,建立了水资源生态系统服务功能价值评价体系,并在海河流域内进行实践应用,第四,将生态服务功能价值理念与水资源承载能力分析模型进行尝试性的耦合,初步提出基于区域宏观经济、水资源及生态环境分析机制的流域的水资源生态环境承载能力分析框架。
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The age of MORB-type metabasic volcanic rocks is(1462± 28) Ma using the SHRIMP zircon U-Pb method.The presence of MORB and IAT assemblages suggests the existence of an ocean basin in Yunkai area,Guangxi,southwestern South China Block during Grenvillian.They probably defined as a part of archipelagic ocean system before South China has formed unified Rodinia during the Grenvillian orogeny.Cathaysia block and Yangtze block have experienced continent-continent collision orogenics behind this ocean basin subducted,and have formed unified Rodinia.
MORB和 IAT组合的出现说明位于华南板块西南端的广西云开地区在 Grenville期可能存在过洋盆,它们很可能代表了 Grenville期造山作用形成统一的 Rodinia超级大陆以前的一个&多岛洋盆&系统,华夏古陆和扬子板块可能在该古洋盆于新元古代早期发生的全球性 Grenville期造山运动而发生消减消失后才开始碰撞和造山,形成统一的 Rodinia超级大陆。
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Turpan-hami basin,which is surrounded with 4 Variscides,is an overlay basin with a bilamellar basement.
吐哈盆地是具有双层基底的叠合盆地,被4个华力西期褶皱带围限。
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This dissertation was focused on the research about the formation and evolution of NQB from the Late Triassic to the early middle Epoch of Jurassic Period, including integrated analyzing the characteristic of the key stratigraphic surfaces, the time of the key stratigraphy, regional rock straigraphy, biostratigraphy and chronostratigraphy, sedimentary system and depositional facies. On basis of these analysis, a tectonic evolution model have been established for NQB during from the Late Triassic to the early middle Epoch of Jurassic Period.1. After the systematic surface analysis about main stratigraphy units, we found that:(1) the bottom of Xiaochaka formation was comformity with the middle Triassic in the basin, and in the north margin it was deposited and overlapped on the different period stratigraphy before Triassic.(2) The top surface of Xiaochaka formation developed regionally karst and paleo-karst breccia, and was uncomformity with Nadigangri Formation, these things suggest that NQB in Xiaochaka depositing stage was developed from middle Triassic basin, and then an extensive regression occurred, the deposition was over and erosion come into being.(3) The lithologic assemblage, geochemistry, mixed fossils, and stratigraphy overlapping characteristic of Quemocuo Formation in early middle Jurassic indicted that the uncomformity surface was an extension-unconformity.2. Integrated analysis about stratigraphy division and correlation indicted that:(1) the paleontologic assemblage of Xiaochaka formation show its time was Carian -Norian stage of late Triassic. According to it was overlapped by late Triassic Nadigangri Formation, so Xiaochaka formation should be Carian - early Norian stage.(2) the SHRIMP Zircon U-Pb age of Nadigangri formation volcanic rocks wear vary form 216 to 205 Ma, so its time should be Norian, but maybe extended into Rhaetian Stage.(3) The age of its bottom volcanic rocks, the fossil assemblages of its middle and upper members and overlapped by lower Jurassic, indicted the age of Riganpeicuo Formation was Norian - Rhaetian stage. And the same time, the volcanic rocks geochemistry of Nadigangri and Riganpeicuo formation both reflected that they wear formed in rift tectonic settings. The lower lithologic and surface characteristic, fossil assemblages and its upper maybe was conformity with lower Jurassic, all reflected that the age of Tumengela Formation in Tumen area should be Norian - Rhaetian stage.
论文对晚三叠世—中侏罗世早期盆地的形成与演化开展了研究,包括关键地层界面特征分析、关键地层时代归属分析、区域岩石地层、生物地层和年代地层的综合对比分析、区域沉积体系与沉积相分析、岩相古地理分析,最终建立晚三叠世—中侏罗世早期羌塘盆沉积—构造动力演化模式。1、系统的对各地层单元的界面分析发现:(1)肖茶卡组底界在盆地内部与中三叠统整合关系,在盆地北缘为沉积超覆于不同时代的前三叠系之上:(2)肖茶卡组顶界面发育古岩溶角砾岩,与上覆那底岗日组为岩溶不整合接触,说明肖茶卡组沉积时期的羌塘盆地是在早中三叠世的盆地基础发展起来的,后期出现了广泛的海退事件,使盆地结束沉积并遭受风化剥蚀作用;(3)中侏罗统雀莫错组的岩性组合特征、岩石化学特征、古生物化石混积和地层的沉积超覆现象均表现出裂陷环境下形成的伸展不整合面的特征。2、综合地层划分与对比分析认为:(1)肖茶卡组古生物化石组合反映其时代为晚三叠世卡尼期—若利期,根据其上被上三叠统那底岗日组不整合覆盖,将其时代厘定为卡尼期—若利期早期;(2)那底岗日组火山岩SHRIMP锆石U-Pb年龄在216~205 Ma之间,其时代主要为若利期,可能包含有瑞替期:(3)日干配错组底部火山岩的年龄、中上部化石组合及其被下侏罗统整合覆盖,综合反映的时代为晚三叠世若利期—瑞替期,而且那底岗日组火山岩和日干配错组火山岩的地球化学成分分析反映两者均为引张构造背景下的产物;土门地区的土门各拉组的下部岩性及界面特征、化石组合和上部可能被下侏罗统整合覆盖,综合反映其时代为若利期—若利期。
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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。
- 相关中文对照歌词
- Basin Street Blues
- Basin Street Blues
- Basin Street Blues
- Mississippi Basin
- Four Walls
- Basin Street Blues
- Basin Street Blues
- Basin Street Blues
- Basin Street Blues
- Come Rain Or Shine / Basin Street Blues
- 推荐网络例句
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Eight cases of simple chordee of penis were adopted urethral extending.9 cases of severe simple chordee of penis were adopted primary urethroplasty.
8例单纯性阴茎下弯患者采取尿道延伸术,9例重度阴茎下弯患者采取切断尿道矫直阴茎一期尿道成形术。
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She is a daintily dressed young lady.
她是个装饰娇艳的少女。
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All of the methods,published by Guyot,Greeff,Fairchild andVisintin proposed for the determination of fluorine using ferric solutionas standard,are based on th...
本法用硝酸铁为标准液,水杨酸钠作指示剂,在 pH=3左右作滴定;当溶液呈橙黄色时,加入适量的乙醇,使其浓度在终点时仍不低于50%。