نتایج جستجو برای: alkali granite
تعداد نتایج: 20054 فیلتر نتایج به سال:
Hydraulic fracturing is an important method of reservoir stimulation in the exploitation of geothermal resources, and conventional and unconventional oil and gas resources. In this article, hydraulic fracturing experiments with shale, sandstone cores (from southern Sichuan Basin), and granite cores (from Inner Mongolia) were conducted to investigate the different hydraulic fracture extension pa...
[1] We report on laboratory experiments in which stick-slipping shear surfaces are subject to transient stressing to simulate earthquake triggering by seismic waves. Granular layers and bare granite surfaces were sheared in a servo-controlled deformation apparatus in double-direct shear. The seismic waves from an earthquake and tectonic load were simulated by superimposing a loading rate sinuso...
This study was carried out to determine lung function and respiratory and non-respiratory symptoms among men and women exposed to dust emitted from crushing of granite rocks and to compare them with control men and women not exposed to any known air pollutant. The sites were the granite rock crushing industries in old Netim, Akamkpa Local Government Area of Cross River State, Nigeria. Respirabl...
PRESSURE TRANSIENT ANALYSIS FOR LARGE SCALE HYDRAULIC INJECTIONS IN THE CARNHENELLIS GRANITE, ENGLAND
Introduction Sand ramp is a kind of sand dune located on or in the foot of some mountains slopes of arid and semi-arid regions. Although these landforms does not differ from other types of sand dunes in these areas apparently, but, there are significant differences between them from the point of view of slope, sediment grain size, Morphology, sediment homogeneous, stratigraphy, laminatio...
The Sayashk tin (Sn) deposit is located within the southern part of Eastern Junggar orogenic belt in Xinjiang Province and forms Kalamaili alkaline granite belt. There are many Sn polymetallic deposits area. To constrain age, genesis, tectonic setting East region, we conducted a bulk-rock geochemical analysis porphyry (SR1) medium- to fine-grained (SR2) hosts deposit, LA-ICP-MS zircon U–Pb dati...
Abstract We provide laser ablation–multicollector–inductively coupled plasma–mass spectrometry (LA-MC-ICP-MS) and high-precision chemical abrasion–isotope dilution–thermal ionization mass (CA-ID-TIMS) U-Pb ages Hf isotopic compositions of zircons from the Red Bluff Granite Suite mafic dikes in Franklin Mountains El Paso, Texas, USA. Granitoids exposed were previously divided into five magmatic ...
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