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[en] Full text: Chemical analysis of 38 wells discharge thermal fluids in central Jordan near (Khan Ezabeeb area), and chemical characteristics of the thermal fluids were studied. 6 samples from cold water and 6 samples of thermal water were sampled from all over the Jordan for comparison purposes, 22 and 7 samples were reviewed and studied for stable and radioactive isotope respectively. The data was interpreted by the use of WATCH program for speciation and construction of mineral equilibrium diagrams and other graphical presentation and classification. The maximum reservoir temperature for the wells predicted by calculation of various geothermometers exceeds 80 deg. C. There is an evidence of mixing with cold water, for plot of O18 versus Cl and a linear relationship between Cl versus Br and B. The calculated Quartz and Chalcedony, for the geothermometers values of the geothermal well waters indicate that reservoir temperature about 60 deg. C - 80 deg. C, and the Na-K-Ca geothermometers give mostly higher values for the wells, however, the calculation of mineral saturation indicates that the geothermal water shows fluid from some of the wells which is about to be close to the equilibrium at 115 deg. C, and some degree of under saturation with anhydrite, fluorite and chalcedony. The chemical composition of the waters in the studied area is governed by water rock interaction in area concerned and the (Cl-SO4-HCO3), (Na-K-Mg) triangular diagrams and stable isotopes were used to classify the geothermal and cold waters and to study some processes in the geothermal system, the geothermal waters are bicarbonate type with some samples of chloride and sulfite type, indicating reactions with sedimentary rocks (sandstone), the origin of the fluids are of meteoric water and the age extends 20,000 up to 38,000 years. (author)
[en] Spatially resolved spectroscopy from the Sloan Digital Sky Survey IV Mapping Nearby Galaxies at Apache Point Observatory (MaNGA) survey has revealed a class of quiescent, relatively common early-type galaxies termed “red geysers” that possibly host large-scale active galactic nuclei–driven winds. Given their potential importance in maintaining a low level of star formation at late times, additional evidence confirming that winds are responsible for the red geyser phenomenon is critical. In this work, we present follow-up observations with the Echellette Spectrograph and Imager (ESI) at the Keck telescope of two red geysers (z < 0.1) using multiple long slit positions to sample different regions of each galaxy. Our ESI data with a spectral resolution (R) ∼ 8000 improve upon MaNGA’s resolution by a factor of 4, allowing us to resolve the ionized gas velocity profiles along the putative wind cone with an instrumental resolution of σ = 16 km s−1. The line profiles of Hα and [N ii] λ6584 show asymmetric shapes that depend systematically on location: extended blue wings on the redshifted side of the galaxy and red wings on the opposite side. We construct a simple wind model and show that our results are consistent with geometric projections through an outflowing conical wind oriented at an angle toward the line of sight. An alternative hypothesis that assigns the asymmetric pattern to “beam smearing” of a rotating, ionized gas disk does a poor job matching the line asymmetry profiles. While our study features just two sources, it lends further support to the notion that red geysers are the result of galaxy-scale winds.
[en] The article deals with history of development and application of the outcomes of isotopic investigations of mineral waters performed in Armenia by different organizations. The article breafs the most interesting results and characterizes the scope of their application in solving a number of geological problems. Data on the age of carbonaceouse mineral waters of Armenia's major deposits used in balneology and for bottling purposes are provided too
[en] The physical model of geyser oscillations presents a challenge to experts, even under controlled conditions met in a laboratory experiment. Despite complex dynamics some qualitative analysis can be made on an introductory physics level using observations and real-time data measurements. By varying the system parameters, one can achieve different behaviour from the hot spring to the geyser-like. We present a laboratory experiment of geyser eruptions and its analysis with real-time temperature and pressure monitoring combined with video recording. The presented geyser model proved to be useful as a student project that offers several new open-ended problems
[en] This chapter of book is about the history of development of balneology in Mountain-Badakhshan autonomous region, about useful application of mineral sources on human organism not only for sick people, but on healthy people too