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The Early Jurassic magmatism in northern Guangdong Province, southeastern China: Constraints from SH
This paper reports SHRIMP zircon U-Pb ages of 196±2 Ma for granite, and 195±1 Ma for gabbro from the Xialan complex in......
Jadeitic rocks within high pressure metamorphic zone from northeastern Jiangxi Province and their fo
There is a close relation in time, space and origin between the NEJXO, NEJXDFZ and HPMZ from NEJXP which are located in ......
TECTONIC SETTING AND METALLOGENESIS OF THE PRINCIPAL SECTORS OF THE TETHYAN EURASIAN METALLOGENIC BE
Three global metallogenic belts were formed in the world during Mesozoic and post Mesozoic times. Two of them are situa......
The Xiangshan uranium ore field is the largest volcanic rock hosted uranium deposit in China.The host rock is a volcanic......
SHRIMP U-Pb geochronology of the zircons from the Precambrian basement of the Qilian Block and its g
Origin and tectonic evolution of the Qilian Precambrian basement on NW China were investigated using zircon U-Pb ages wi......
The Aksug deposit,located in Altay-Sayan region of Russia,is one of the largest porphyry Cu-Mo deposits in SouthernSibe......
Modem oceans contain large bathymetric highs (spreading oceanic ridges,aseismic ridges or oceanic plateaus and inactive ......
Formation of the adakite-like granitoid complex and porphyry copper-gold deposit in Shaxi from south
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Formation of the adakite-like granitoid complex and porphyry copper-gold deposit in Shaxi from south
On the basis of the geological and geochemical studies, including chemical analysis of bulk rocks, rare-earth and trace ......
从地震大剖面显示,塔里木盆地发育为手风琴式的演化史.大体上形成有3层"断-坳"结构:①震旦系的"断",古生界-三叠系的"坳";②侏罗系......
背景硬膜下血肿是发生率最高的一类颅内血肿。其中亚急性硬膜下血肿尚无明确治疗标准。这类血肿特殊的病理生理学特点,为内镜下经......
目的探讨标准大骨瓣开颅血肿清除去大骨瓣减压术对重度颅脑外伤侧裂区损伤致单侧脑肿胀的疗效。方法 57例重度颅脑外伤侧裂区损伤......
１９８５年１月－１９９４年１２月收治罕见病因所致胸椎管压迫症１３例，其中胸椎间盘突出６例，硬膜外脓肿４例，硬膜下血肿１例，硬膜外脂肪血管瘤１例，硬膜下结核肉芽肿１例。１２例......
分析了两相混合式步进电动机的细分驱动原理,采用微芯公司的dsPIC30 f6010A作为主控芯片设计了控制器。在此基础上,着重介绍了细分......
引入一个具有Heyting结构Ockham代数，简称HO-代数．所谓HO-代数，是指具有（2，2，2，1，0，0）类型的代数（L；∧，∨，→，f，0，1）．其中（L；f）是Ockham代数，（L；→）是Heyting......
本文首先介绍Wang-Bau曲线细分的快速算法；然后利用与Bezier曲线的转换矩阵，推导出Wang-Ball曲线的细分变换为相似变换；同时，并给出了......
在细分曲面造型中,对Doo—Sabin曲面为代表的细分曲面的研究,已成为近几年来图形学领域最重要的研究课题,但已有文献在细分算法的......
五次C-曲线是定义在空间Ω=span{1，t，t^2，t^3，sint，cost}上的一类曲线，它可以表示自由形式的曲线，例如圆，给出了五次C-曲线的细分公式，并且......
