共查询到20条相似文献，搜索用时 109 毫秒
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众所周知,我国地下热源是丰富的,也是世界上开发和利用地下热水最早的国家之一,为早日实现四个现代化,迅速开展地热勘探工作,查明地下热源的分布与储量是极为重要的。 相似文献
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在介绍南京汤山地下热水地热地质背景的基础上,探讨了其“源”、“通”、“储”、“盖”控制因素,初步提出了该区地下热水的形成模式与资源前景,对该区地下热水的勘查开发提出了建议。 相似文献
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林毅 《地质灾害与环境保护》2008,19(2):47-51
电白县观珠镇根竹园地热田地热流体主要赋存于花岗岩风化裂隙和构造裂隙中,热储呈带状,受断裂构造控制,地热流体温度60℃～78℃,地热田规模较小,地面有温、热泉出露。本文通过地热田的地质条件、地下热水的温度、水质及储量,对开采的技术条件及储量作出评价,为合理开发地热资源提供水文地质依据。 相似文献
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文章回顾了黑龙江省地热勘查历史，阐述了成控地热的地质构造背景条件，继而对各构造单元的热源、热储及地下热水成生环境进行了分析。在地热资源及地下热水成生的背景基础上，推算地热资源量和推断地下热水分布、埋藏及其规模和开发远景。 相似文献
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本文在分析林甸地下热水资源形成的基础上，对其潜在地热资源进行了预测评价。预测结果表明，它具有可能成为大型中低温热水田的热能储量。建议成立地热专业队伍进行勘探开发，尽快使这一潜在资源优势，转化为产品和商品优势，早日发挥效益。 相似文献
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本文在分析林甸地下热水资源形成的基础上，对其潜在地热资源进行了预测评价。预测结果表明，它具有可能成为大中低温热水田的热能储量。建议成立地热专业队伍进行勘探开发，尽快使这一潜在资源优势，转化为产品和商品优势，早日发挥效益。 相似文献
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《地下水》2019,(6)
溪沸地热位于安徽省安庆市岳西县菖莆镇沸溪村,为研究溪沸地热区地热资源分布特征,应用区域物探工作成果和地质资料进行综合分析研究,查明溪沸地热的地质条件、热储特征,并计算确定了地热储量和地热流体可开采量,研究结果显示:地下热水主要受控于断裂带岩石的破碎程度,断裂带岩石破碎程度不同,其地下热水通道、连通程度存在差异性,F2断裂破碎带是溪沸地热区热储层地下热水的主要通道,研究区外东北部,大气降水沿着F2断裂破碎带呈低温上升泉出露和低温异常显示;通过估算地热田地热资源的潜力可知,区内地热田热储中储存的热量和水量分别为2.175 6×10~(16) J和4 808.08×10~4 m~3,而地热流体可开采量为694.75 m~3/d(8.041 L/s)。研究结果为岳西县溪沸地热的开发利用提供了可靠的理论依据。 相似文献
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Emily Keeble David I. Whiteside Michael J. Benton 《Proceedings of the Geologists' Association. Geologists' Association》2018,129(2):99-119
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. 相似文献
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Gilles Serge Odin 《Comptes Rendus Geoscience》2002,334(6):409-414
Lithostratigraphy, physicochemical stratigraphy, biostratigraphy, and geochronology of the 77–70 Ma old series bracketing the Campanian–Maastrichtian boundary have been investigated by 70 experts. For the first time, direct relationships between macro- and microfossils have been established, as well as direct and indirect relationships between chemo-physical and biostratigraphical tools. A combination of criteria for selecting the boundary level, duration estimates, uncertainties on durations and on the location of biohorizons have been considered; new chronostratigraphic units are proposed. The geological site at Tercis is accepted by the Commission on Stratigraphy as the international reference for the stratigraphy of the studied interval. To cite this article: G.S. Odin, C. R. Geoscience 334 (2002) 409–414. 相似文献
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The effect of water on accessory phase solubility in subaluminous and peralkaline granitic melts 总被引：4，自引：0，他引：4
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. 相似文献
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Emmanuel Skourtsos Daniel Vachard Alexandra Zambetakis-Lekkas Rossana Martini Louisette Zaninetti 《Comptes Rendus Geoscience》2002,334(12):925-931
Some olistolites reworked in a Tertiary flysch of Mount Parnon (Peloponnesus, Greece) exhibit a Late Permian assemblage, dominated by Paradunbarula (Shindella) shindensis, Hemigordiopsis cf. luquensis and Colaniella aff. minima. This association corresponds to the Late Wuchiapingian (=Late Dzhulfian), a substage whose algae and foraminifera are generally little known. Contemporaneous limestones crop out in the middle part of the Episkopi Formation in Hydra, but they are rather commonly reworked in Mesozoic and Cainozoic sequences. The palaeobiogeographical affinities shared by the foraminiferal markers of Greece, southeastern Pamir, and southern China, are very strong (up to the specific level), and are congruent with the Pangea B reconstructions. To cite this article: E. Skourtsos et al., C. R. Geoscience 334 (2002) 925–931. 相似文献
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正20141596 Liu Yunhuan(School of Earth Sciences and Resources,Chang’an University,Xi’an 710054,China);Shao Tiequan Early Cambrian Quadrapyrgites Fossils of Xixiang Boita in Southern Shaanxi Province(Journal of Earth Sciences and Environment,ISSN1672-6561,CN61-1423/P,35(3),2013,p.39-43,3 illus.,20 refs.) 相似文献
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正20141719 Chen Zhijun(State Key Laboratory of Geological Processes and Mineral Resources,China University of Geosciences,Wuhan 430074,China);Chen Jianguo Automated Batch Mapping Solution for Serial Maps:A Case Study of Exploration Geochemistry Maps(Journal of Geology,ISSN1674-3636,CN32-1796/P,37(3),2013,p.456-464,2 illus.,2 tables,10 refs.) 相似文献
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正20140962 Chen Fenning(Xi’an Institute of Geology and Mineral Resources,Xi’an710054,China);Chen Ruiming Late Miocene-Early Pleistocene Ostracoda Fauna of Gyirong Basin,Southern Tibet(Acta Geologica Sinica,ISSN0001-5717,CN11-1951/P,87(6),2013,p.872-886,6illus.,56refs.) 相似文献
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正1.IGNEOUS PETROLOGY20142008Cai Jinhui(Wuhan Center,China Geological Survey,Wuhan 430205,China);Liu Wei Zircon U-Pb Geochronology and Mineralization Significance of Granodiorites from Fuzichong Pb-Zn Deposit,Guangxi,South China(Geology and Mineral Resources of South China,ISSN1007-3701,CN42-1417/P,29(4),2013,p.271-281,7illus., 相似文献
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正20141205Cheng Weiming(State Key Laboratory of Resources and Environmental Information System,Institute of Geographic Sciences and Natural Resources Research,CAS,Beijing 100101,China);Xia Yao Regional Hazard Assessment of Disaster Environment for Debris Flows:Taking Jundu Mountain,Beijing as an 相似文献
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正20141266Fan Chaoyan(Guangdong Provincial Key Laboratory of Mineral Resources and Geological Processes,Guangzhou 510275,China);Wang Zhenghai On Error Analysis and Correction Method of Measured Strata Section with Wire Projection Method(Journal of 相似文献