甘孜州地区旅游资源特征与区划

甘孜州旅游资源丰富，类型多样，发展前景广阔。本文重点介绍了全州的旅游资源状况和特色，并根据其地域组合及功能特点划分为三个区。     

稻城县亚丁风景区旅游资源总体评价及开发可行性论证

稻城县亚丁风景区是四川省甘孜州重要的风景名胜区。其旅游资源丰富，以其独特的自然景观、人文景观、地热资源而著称。以亚丁为中心，其周边旅游资源丰富、功能全、品位高，但开发力度不够。本文着重从亚丁旅游资源、区位优势等方面，系统分析了亚丁旅游开发的优势条件和制约因素，论述了其开发的价值和开发战略。     

四川省甘孜州地质灾害特征与防灾减灾对策

在论述了甘孜州环境地质条件的基础上 ,系统地阐述了甘孜州地区的地质灾害发育类型、分布特征及危害程度 ,并提出了相应的防灾减灾对策。     

梭布垭奥陶纪地质公园旅游开发研究

以恩施州梭布垭地质公园为例,分析了地质公园旅游资源开发的特点和条件,在此基础上提出了相应旅游产品的开发。     

甘孜州河流开发的生态地质环境影响初探

甘孜州具有丰富的水利资源,在四川省占有重要地位,水电开发对改善全州的能源结构,支撑矿业发展和改善民生具有重要作用.甘孜州也是长江上游的水源涵养地和天然保护屏障,而梯级电站开发产生的连锁和累加效应难以在短时期内凸现,由此增加了所在区域的生态地质环境风险,主要表现为气温、降水、植被、地质灾害、湿地、农业结构、水环境等要素的变化.通过对比州内生态地质环境脆弱区与非脆弱区的河流开发,全面掌握现状,借助多学科和多技术手段,利用评价指标体系,对相关要素进行信息化处理,确定了生态地质环境质量及风险区划,并且制定相应的对策.     

甘孜州地质灾害分布及重点地段地质灾害防治对策

甘孜州是四川省西北部及长江上游重要的生态屏障区,本文通过剖析区内典型地质灾害特征及其分布、形成规律,研究区内地质灾害的防治措施和对策,进而达到减灾防灾的目的。     

鲜水河断裂带八美段新构造活动及减震防灾建议

四川甘孜州八美镇大地构造区属松潘—甘孜造山带中段,鲜水河断裂带穿切其中,新构造活动持续。通过野外地质调查并结合前人工作基础,从左行走滑断层、构造地貌、地震、温泉活动等多个方面对鲜水河断裂带八美段新构造活动表现形式进行了研究,分析了所产生的影响,提出减震防灾的建议。     

四川甘孜地质环境特征研究及其防治对策

甘孜州的特殊地质构造、气候条件以及人类长期的生产活动,导致区内地质环境脆弱,地质灾害频繁发生。主要地质环境问题集中表现在斜坡稳定性差及滑坡、崩塌、泥石流等物理地质作用明显。降雨是地质灾害的诱发因素,区内地质灾害多发生在5～9月份,具有与大雨或暴雨期吻合或滞后2～3d的特征。地质灾害在平面上存在着一定的分布规律,具体划分出Ⅰ、Ⅱ、Ⅳ、Ⅳ等4种不同程度的地质灾害发育区。对甘孜州地质环境问题的综合分析,初步探讨了针对区内不同的地质灾害,相应采取多种不同的防治对策。     

四川甘孜连续挖出六块大型金块

四川甘孜州自84年3月以来,连续挖出了六块金块。金块的重量分别是:2斤7两、2斤3两、1斤2两(两块)、1斤1两和7两。这些金块杂质少,成色高,价值人民币7万多元。     

三江东部锡矿带的花岗岩类和锡矿地质特征

三江(怒江、澜沧江、金沙江)锡成矿区系著名的东南亚锡矿带的北延部分。其东带于金沙江东侧的川西—滇西北一带,介于金沙江深断裂与甘孜-理塘深断裂之间;南起小金河-丽江深断裂,经甘孜州西部向北延伸,很可能进入青海玉树地区。南北长约700千米,东西宽80—150千米(图1)。七十年代以来,1:20万区域地质调查发现较好的锡异常和锡矿(化)     

The terrestrial fauna of the Late Triassic Pant-y-ffynnon Quarry fissures,South Wales,UK and a new species of Clevosaurus (Lepidosauria: Rhynchocephalia)

Pant-y-ffynnon Quarry in South Wales yielded a rich cache of fossils in the early 1950s, including articulated specimens of new species (the small sauropodomorph dinosaur Pantydraco caducus and the crocodylomorph Terrestrisuchus gracilis), but no substantial study of the wider fauna of the Pant-y-ffynnon fissure systems has been published. Here, our overview of existing specimens, a few described but mostly undescribed, as well as freshly processed material, provides a comprehensive picture of the Pant-y-ffynnon palaeo-island of the Late Triassic. This was an island with a relatively impoverished fauna dominated by small clevosaurs (rhynchocephalians), including a new species, Clevosaurus cambrica, described here from a partially articulated specimen and isolated bones. The new species has a dental morphology that is intermediate between the Late Triassic Clevosaurus hudsoni, from Cromhall Quarry to the east, and the younger C. convallis from Pant Quarry to the west, suggesting adaptive radiation of clevosaurs in the palaeo-archipelago. The larger reptiles on the palaeo-island do not exceed 1.5?m in length, including a small carnivorous crocodylomorph, Terrestrisuchus, and a possible example of insular dwarfism in the basal dinosaur Pantydraco.     

The effect of water on accessory phase solubility in subaluminous and peralkaline granitic melts

The solubilities of columbite, tantalite, wolframite, rutile, zircon and hafnon were determined as a function of the water contents in peralkaline and subaluminous granite melts. All experiments were conducted at 1035 °C and 2 kbar and the water contents of the melts ranged from nominally dry to approximately 6 wt.% H₂O. Accessory phase solubilities are not affected by the water content of the peralkaline melt. By contrast, solubilities are affected by the water content of the subaluminous melt, where the solubilities of all the accessory phases examined increase with the water content of the melt, up to 2 wt.% H₂O. At higher water contents, solubilities are nearly constant. It can be concluded that water is not an important control of accessory phase solubility, although the water content will affect diffusivities of components in the melt, thus whether or not accessory phases will be present as restite material. The solubility behaviour in the subaluminous and peralkaline melts supports previous spectroscopic studies, which have observed differences in the coordination of high field strength elements in dry vs. wet subaluminous granitic glasses, but not for peralkaline granitic glasses. Lastly, the fact that wolframite solubility increases with increasing water content in the subaluminous melt suggests that tungsten dissolved as a hexavalent species.     

Quaternary stresses revealed by calcite twinning inversion: insights from observations in the Savonnières underground quarry (eastern France)

Calcite samples were extracted both from the rock matrix and the superficial coating of a karstified fault plane of an underground quarry, located in the eastern border of the Paris basin. The karstification is dated as Quaternary. Analysis of mechanical calcite twinning reveals that only the calcite matrix has also undergone a compression trending WNW that can be attributed to the Mio-Pliocene alpine collision. Both coating and matrix have undergone a strike-slip regime with σ₁ roughly trending north–south, that could correspond to the regional present-day state of stress, a strike-slip compression rather trending NNW, modified by local phenomena. To cite this article: M. Rocher et al., C. R. Geoscience 335 (2003).     

HYDROGEOLOGY

正20141756 Chen Ruige(Mathematical College,China University of Geosciences,Beijing100083,China);Zhou Xun Numerical Simulation of Groundwater Level Fluctuation in a Coastal Confined Aquifer with Sloping Initial Groundwater Level Induced by the Tide(Geological Bulletin of China,ISSN1671-2552,CN11-4648/P,32(7),2013,p.1099-1104,6 illus.,16 refs.) Key words:confined water,groundwater level     

METAMORPHIC PETROLOGY

正20141408 Cai Jia(Institute of Geology,Chinese Academy of Geological Sciences,Beijing100037,China);Liu Fulai Petrogenesis and Metamorphic P-T Conditions of Garnet-Spinel-Biotitebearing Paragneiss in Danangou Area,Daqingshan-Wulashan Metamorphic Complex Belt(Acta Petrologica Sinica,ISSN1000-0569,CN11-1922/P,29(7),     

SERIALS

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GEOPHYSICAL EXPLORATION

正20142386An Guoying(China Aero Geophysical Survey and Remote Sensing Center for Land and Resources,Beijing 100083,China)Application of Satellite Remote Sensing in Regional Hydrogeological Investigation:Taking Cenozoic Strata in Wenquan Sheet(1∶250 000)of Karakoram Range as an Example(Geosci-     

QUATERNARY GEOLOGY & GEOMORPHOLOGY

正20141016An Chengbang(Key Laboratory of Western China’s Environmental Systems,Ministry of Education,Lanzhou University,Lanzhou 730000,China);Zhao Yongtao Lake Records during the Last Glacial Maximum from Xinjiang,NW China and Their Climatic Impli-     

PETROLEUM GEOLOGY

正20141538 Cao Qing(School of Earth Sciences and Engineering,Xi’an Petroleum University,Xi’an 710065,China);Zhao Jingzhou Characteristics and Significance of Fluid Inclusions from Majiagou Formation,Yichuan Huangling Area,Ordos Basin(Advances in Earth Science,ISSN1001-8166,CN62-1091/P,28(7),2013,p.819-828,7 illus.,3 tables,43 refs.)     

GEOCHEMISTRY

正20142002 Wei Hualing(Institute of Geophysical and Geochemical Exploration,Chinese Academy of Geological Sciences,Langfang065000,China);Zhou Guohua Element Content and Mineral Compositions in Different Sizes of Soil in Tongling Area,Anhui Province(Geological Bulletin of China,ISSN1671-2552,CN11-4648/P,32(11),2013,p.1861