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针对甘肃省武山县温泉镇水工环地质条件,通过现场调查和对区域地下水监测资料的分析,认为区内地下水主要受大气降水补给,主要为松散岩类孔隙水和基岩裂隙水,地下水补排边界与地表分水边界吻合,总体流向由地势高处流向地势低处。区内花岗岩体具多期次,岩浆侵入作用为地下热水的形成提供了热能和数量有限的初生热水。岩浆带来的热量及水溶液在成岩过程中富集于断裂带深部相对封闭的空间环境。是地下热水形成的主要热源,即由高温内生成因流体进入地壳上层引起的。综合区域水工环地质条件,简要分析了地下热水的水文地质特征、热源及水源。 相似文献
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泰顺会甲溪发育宝贵的地热资源,它的形成需要特定的地质构造条件。对泰顺会甲溪地热地质特征、成因机理进行了分析,对其主要控矿因素进行了归纳总结,初步建立了有利于形成地下热水的信息模式,提出了泰顺地区地热水矿床的三大找矿远景区。 相似文献
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重庆市地下热水储存量大约有1亿m3,其中75%分布在都市圈内.通过对重庆市都市圈13个温泉群,20个泉点的温泉水的δD、δ18O和δ34 S调查,结合水化学指标进行分析表明:重庆市都市圈温泉水类型为SO24- -Ca或者SO24- -Ca-Mg型,水的来源为大气降水.δ18O值为-7.41‰~-9.48‰,研究认为地下热水的补给来源于海拔672~1 503 m研究区域背斜核部岩溶出露区和背斜北端的岩溶出露区.热水中主要离子SO24-和Ca2+、Mg2+均存在很好的正相关性,且δ34S值为31.46‰~34.32‰,正好处于下三叠统嘉陵江组二段硬石膏δ34S值异常段,由此表明雨水和地表径流沿岩溶裂隙等进入深部的含有硬石膏的嘉陵江组,由此认为重庆都市圈温泉水储水层可能为下三叠统嘉陵江组二段. 相似文献
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构造应力与地下水运移 总被引:1,自引:0,他引:1
构造应力是地下水运移、分布的重要控制因素.通过哀牢山北段金矿带成矿期构造应力场与成矿流体(地下水)运移关系的研究发现,最大主压应力低值区和已知金矿床、金矿点具有良好的对应关系,它们是成矿流体运移、成矿元素卸荷的有利场所;成矿流体的运移经三种因素联合控制,构造应力控制了其平面分布,流体上升的驱动力主要为温度梯度,其次为水力梯度.构造应力场与地下水运移、分布的关系研究不仅可以用于成矿理论研究、成矿预测,而且对于在新构造活动区寻找地下水、地下热水及矿泉水具有重要指导意义. 相似文献
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Missionaries are well known to suffer the effects of stress. Patricia Miersma relates missionary stress to combat related stress. 1 Development workers too are known to be at increased risk of death whilst overseas-mostly due to traumatic incidents. Relief workers voluntarily enter high stress situations. These overseas workers are at real risk of Post Traumatic Stress Disorder (PTSD). The issue of Critical Incident Stress Debriefing (CISD, or Psychological Debriefing) has been critically examined in an editorial in the British Medical Journal.3 The first randomized, controlled study of CISD that we are aware of (for motor vehicle accident survivors) was published in 1996.4 With 54 intervention subjects, it did not demonstrate effectiveness. 相似文献
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Metallurgist - Unstabilized nitrogen-containing silicon steel 03Kh18N13S2AM2VFBR-Sh (EP 302M-Sh), intended for heat exchanger tubes operating in contact with heavy liquid-metal coolants and water... 相似文献
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《Acta Metallurgica Materialia》1994,42(6):1875-1885
The course of the martensitic transformation is affected by strain fields in the untransformed parent phase, One of the consequences of this NiTi shape memory alloys is the “Thermal Arrest Memory Effect” (TAME), where the martensite to parent phase transformation “remembers” the temperature of arrest in the previous thermal cycle. From the results of the calorimetric investigations in this study, it is deduced that the TAME is the result of locked-in transformation strain energy in the self-accomodating martensitic microstructure. Thus it is found that on account of the large difference in the degree of self-accomodation achieved in the martensitic microstructures, TAME is observed to be significant in NiTi and not in CuAnAl shape memory alloys. 相似文献
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ML Huberman 《Canadian Metallurgical Quarterly》1988,38(15):10285-10289
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采用大气等离子喷涂(APS)技术制备了稀土元素掺杂量为19 mol.%的HfO2涂层,即Hf0.81Y0.19O1.905 (YSH19)/YSZ与Hf0.81Yb0.0475Y0.1425O1.905(YbYSH19)/YSZ双陶瓷层热障涂层,研究了其在1300℃下耐高温燃气热冲击性能。结果表明,两种热障涂层的隔热能力约为200℃,YbYSH19/YSZ体系热障涂层经280次燃气热冲击循环后涂层结构依然较为完整,性能显著优于YSH19/YSZ及YSZ热障涂层体系。涂层的失效模式为因中心区域处较大冲击载荷造成的涂层逐层剥落,以及边缘位置处轴向应力和剪切应力导致的涂层剥落。 相似文献