Geofluids
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The upper continental crust, an aquifer and its fluid: hydaulic and chemical data from 4 km depth in fractured crystalline basement rocks at the KTB test siteAbstract Detailed information on the hydrogeologic and hydraulic properties of the deeper parts of the upper continental crust is scarce. The pilot hole of the deep research drillhole (KTB) in crystalline basement of central Germany provided access to the crust for an exceptional pumping experiment of 1‐year duration. The hydraulic properties of fractured crystallin... ... hiện toàn bộ
Geofluids - Tập 5 Số 1 - Trang 8-19 - 2005
Các thành phần dịch lỏng ở các độ sâu khác nhau trong mỏ vàng Sanshandao, bán đảo Jiaodong, Trung Quốc Dịch bởi AI Tóm tắt Mỏ vàng Sanshandao, nằm ở phía tây bắc của bán đảo Jiaodong, đông Bắc Trung Quốc, là một trong những mỏ vàng lớn nhất thuộc tỉnh vàng Jiaodong. Tại đây, quặng kiểu phân tán và kiểu mạch được chứa trong các granitoid thuộc thời kỳ Mesozoi. Sự khoáng hóa và biến đổi chủ yếu bị kiểm soát bởi đứt gãy Sanshandao–Cangshang ở vùng này. Sericite trích xuất từ các đá... ... hiện toàn bộ
Geofluids - Tập 13 Số 4 - Trang 528-541 - 2013
Earthquake‐related temperature changes in two neighboring hot springs at Xiangcheng, ChinaAbstract Pre‐earthquake and postearthquake temperature changes were documented in two hot springs at Xiangcheng. Pre‐earthquake changes were documented in spring I, 13 days before and 106 km away from the M s 5.8 Zhongdian earthquake. The 11‐year cutoff spring spouted again, and the spouted water was 24°C hotter than th... ... hiện toàn bộ
Geofluids - Tập 16 Số 3 - Trang 434-439 - 2016
Geofluid Systems of Koryaksky-Avachinsky Volcanoes (Kamchatka, Russia)The Koryaksky-Avachinsky volcanogenic basin, which has an area of 2530 km2 , is located 25 km from Petropavlovsk-Kamchatsky City and includes five Quaternary volcanoes (two of which, Avachinsky (2750 masl) and Koryaksky (3456 masl), are active), and is located within a depression that has formed atop Cretaceous basement rocks. Magma injection zones (dikes and chamber-li... ... hiện toàn bộ
Geofluids - Tập 2017 - Trang 1-21 - 2017
A Statistical Constitutive Model considering Deterioration for Brittle Rocks under a Coupled Thermal-Mechanical ConditionDue to active actions of groundwater and geothermal, the stability of underground engineering is important during geological structure active area. The damage mechanical theory and statistical mesoscopic strength theory based on Weibull distribution are widely used to discuss constitutive behaviors of rocks. In these theories, a statistical method is used to capture mesoscopic properties o... ... hiện toàn bộ
Geofluids - Tập 2018 - Trang 1-10 - 2018
Multiscale Fracture Analysis in a Reservoir-Scale Carbonate Platform Exposure (Sorrento Peninsula, Italy): Implications for Fluid FlowWe derive the discrete fracture network (DFN) of a Lower Cretaceous carbonate platform succession exposed at Mt. Faito (Southern Apennines), which represents a good outcrop analogue of the coeval productive units of the buried Apulian Platform in the Basilicata oilfields. A stochastic distribution of joints has been derived by sampling at two different scales of observation. At the outcrop... ... hiện toàn bộ
Geofluids - Tập 2018 - Trang 1-10 - 2018
Gas breakthrough experiments on pelitic rocks: comparative study with N2, CO2 and CH4Abstract The capillary‐sealing efficiency of intermediate‐ to low‐permeable sedimentary rocks has been investigated by N2 , CO2 and CH4 breakthrough experiments on initially fully water‐saturated rocks of different lithological compositions. Differential gas pressures up to 20 MPa were imposed across samp... ... hiện toàn bộ
Geofluids - Tập 4 Số 1 - Trang 61-80 - 2004
Geothermal fluids circulation at Caldas do Moledo area, Northern Portugal: geochemical and isotopic signaturesAbstract A hydrogeological conceptual model of the Caldas do Moledo geothermal site is proposed that shows mixing between geothermal waters and local shallow groundwaters. Stable isotope values of Caldas do Moledo geothermal waters indicate recharge areas located at relatively high altitudes (850–1250 m a.s.l.). The NW–SE Vigo–Régua shear zone plays an important rol... ... hiện toàn bộ
Geofluids - Tập 3 Số 3 - Trang 189-201 - 2003
Measurements of gas permeability and diffusivity of tight reservoir rocks: different approaches and their applicationsAbstract Permeability and diffusivity are critical parameters of tight reservoir rocks that determine their viability for commercial development. Current methods for measuring permeability and/or diffusivity may lead to erroneous results when applied to very tight rocks including gas shales, coal, and tight gas sands, as well as rocks considered as seals for nuclear... ... hiện toàn bộ
Geofluids - Tập 9 Số 3 - Trang 208-223 - 2009
The experimental investigation of soil gas radon migration mechanisms and its implication in earthquake forecastAbstract Laboratory experiments were performed to help understand the fluctuations and the spike‐like anomalies of Rn in a time series that was recorded continuously at monitoring stations. One of the experiments indicated that Rn is adsorbed on the surface of sand particles and can be liberated with minor changes in the physical conditions of the containing medium.... ... hiện toàn bộ
Geofluids - Tập 10 Số 4 - Trang 556-563 - 2010
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