An interior solution of the vector graviton gauge field

We have found an interior solution of the Einstein equation containing a vector graviton field under a special mass distribution.     

Mid-Late Neoproterozoic rift-related volcanic rocks in China: Geological records of rifting and break-up of Rodinia

Early Cambrian and Mid-Late Neoproterozoic volcanic rocks in China are widespread on several Precambrian continental blocks,which had aggregated to form part of the Rodinia supercontinent by ca.900 Ma....     

英峰岭剖面红土的粘土矿物和化学特征与成土环境关系

地球化学与粘土矿物学研究表明,广东雷州半岛英峰岭多期红土是拉弱武岩红土化初级阶段的产物,由剖面底层至顶层,红土成熟度依次递增。各层红土中主要粘土矿物含量和粘土的Ｆｅ２Ｏ３含量,以及工土和粘土的氧化,淋溶,富铁铝等化学特征系数与红土埋深之间呈波动起伏的关系。     

Methods and procedures to determine the outer limits of the continental shelf beyond 200 nautical miles

This paper establishes techniques and methods to determine a variety of boundaries associated with 200 nautical miles beyond the continental shelf. The methods, based on topography, slope and second-deriv- ative profile integrated analysis, are now able to identify automatically the foot of the continental slope （FOS）. By analyzing the sedimentary profile, the points of 1% sediment thickness are recognized. Through the intersection, cut, deletion and mergence calculation of the extrapolated data set of fLxed-point series, the method succeeds in generating automatically the extrapolated boundaries, including the FOS＋60 M line, the 350 M line, and the 2500 m＋100 M line. In addition, based on the automatic analysis of the topographic profile, it can be applied to determine rapidly the points of maximum water depth. Taking the northern Okinawa Trough （OT） as an example, these methods are used to calculate and examine the boundaries in- cluded in the Submission by the People＇s Republic of China Concerning the Outer Limits of the Continental Shelf beyond 200 Nautical miles in Part of the East China Sea （ECS）; the boundaries thus derived have a solid scientific and rational basis.     

安徽沿江地区中生代岩浆岩的基本特点

安徽沿江地区位于长江中下游岩浆带中段,中生代岩浆活动强烈,类型复杂,特点突出。它具有夹心饼干式分带现象。中间为富碱的高钾钙碱性岩系和橄榄安粗岩系;两侧为钙碱性岩系。中间的岩浆岩具有高钾富碱、高Ｓｒ,低Ｍｇ、Ｃｒ、Ｎｉ,εＮｄ变化大但Ｉｓｒ变化小且较低以及岩浆演化的多样性为特点。     

层状云对积云发展和降水的影响——一种云与云之间影响的数值模拟

利用我们已建立的二维积云降水模式,在相同的大气层结条件下,模拟了孤立积云和层状云中积云的发展和降水情况。结果表明,层状云的存在对积云的发展有显著的促进作用,降水量可加大到几到几十倍,从而认为积层混合云系可能是产生大雨和暴雨的一种重要机构,这与梅雨锋里锋区混合云系常产生暴雨的观测事实比较符合。     

大方不规则伊／蒙间层矿物研究

通过X射线衍射、红外光谱、热分析、理化性能测试和镜下观察等手段,确定了贵州大方猫场含黄铁矿粘土岩中主要粘土矿物为伊/蒙不规则间层矿物,其间层作用类型为R=1,即累托石型有序间层。     

河套华北地区旱涝的前期环流异常与大西洋海温的关系及其数值模拟

首先分析了河套华北地区旱涝的前期异常环流，然后探讨了这种异常环流形成的机制，最后采用了ＯＳＵ－ＡＧＣＭ作了大西洋地区热源异常强迫的数值试验。结果表明，大西洋地区海温异常强迫激发的定常波向上、下游的能量传播，造成的前期秋冬季环流异常与河套华北地区的夏季旱涝有较好的对应关系。     

山东寿光北部地区土壤盐渍化特征与现状评价

为了解山东寿光北部地区土壤盐碱化现状及为工程建设、生态环境改良提供基础资料,通过野外采样和室内试验,分析了土壤盐碱化分布特征和类型,识别出盐分的主要形态.结果表明,研究区土壤含盐量总体不高,局部地段处于轻度至中度盐渍化程度;盐分含量北高南低,近似平行于海岸分布;土壤中阳离子以Na+为主,阴离子主要为Cl-和SO42-,盐分类型为氯盐渍土、亚氯盐渍土和亚硫酸盐渍土三类.     

Early J2 basalts in SE China: Incipience of large-scale late Mesozoic magmatism

Magmatism in SE China was dormant during 204–180 Ma, but was reactivated in 180–170 Ma (early J₂), and then became more and more intensive towards the end of early Cretaceous. The small-scale early J₂ magmatism is the incipience to long-term and large-scale magmatism in this region. A near east-west (EW) trend volcanic belt was distributed across south Hunan, south Jiangxi and southwest Fujian was formed during early J₂ time. Along this belt from the inland toward the coast, the lithology of basalts changes from alkali into tholeiite, and the amount of erupted volcanic rocks and the proportions of rhyolites coexisting with the basalts increase. On the basis of geochemical characteristics of these basalts, we infer that the melting degree of source rocks and the extent of fractional crystallization and crustal contamination all increased whereas the depth of mantle source decreased from the inland to the coast, which led to the variations of geological characteristics of the volcanic belt. In early J₂, the western spreading Pacific plate began to subduct underneath SE China continental block, reactivating near EW trend deep fault that was originally formed during the Indosinian event. The stress of the western spreading Pacific plate and the extent of asthenosphere upwelling increased from the inland to the coast, which is consistent with the generation and evolution of early J₂ basalts.