scholarly journals Epsom salts and the unorthodox journey of a mineral from a natural saline spring

2018 ◽  
Vol 156 (2) ◽  
pp. 771-772
Author(s):  
Sergio A. Carrillo
Keyword(s):  
Geofluids ◽  
2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Ji-long Han ◽  
Feng-qing Han ◽  
Syed-Asim Hussain ◽  
Wen-yu Liu ◽  
Xiu-qing Nian ◽  
...  

The Nangqen Basin is a typical shearing-extensional basin situated in the hinterland of the Tibetan Plateau. It contains abundant saline spring resources and abnormal trace element enrichments. The hydrochemical molar ratios (Na/Cl, B/Cl, and Br/Cl), H-O isotopes, and B isotopes of the saline spring were systematically measured to describe the evolution of brines and the origin of the boron. The sodium chloride coefficient of the water samples in this area is around 1.0 or slightly greater, which is characteristic of leached brines; the highest B/Cl value is 4.25 (greater than that of seawater). The Na/Cl, B/Cl, and Br/Cl values of the springs are clear indicators of a crustal origin. Theδ18O values of the spring waters range from −12.88‰to −16.05‰, and theδD values range from −100.91‰to −132.98‰. Meanwhile the B content and B isotopes in the saline springs are in the ranges of 1.00 to 575.56 ppm and +3.55‰to +29.59‰, respectively. It has been proven that the saline springs in the Nangqen Basin are a type of leached brine, suggesting that the saline springs have a terrestrial origin. Theδ11B-B characteristics of the springs are similar to those observed in the Tibetan geothermal area, indicating that these two places have the same B source. Moreover, they have a crustal origin (marine carbonate rocks and volcanic rocks) instead of a deep mantle source.


1857 ◽  
Vol 3 ◽  
pp. 66-69
Author(s):  
Forbes

On the 7th of January 1839, I communicated to the Royal Society of Edinburgh a pretty detailed account of the singular mineral and gas springs of Kissingen, in Bavaria, then much less known than at present to English travellers. I refer to this paper, printed in the Edinburgh New Philosophical Journal, April 1839, for the details of the most curious of these, a saline spring called Kunde-Brunnen, which was at that time regularly periodic; a copious and turbulent discharge of brine, mixed with torrents of carbonic acid gas, recurring six or eight times in the twenty-four hours. This phenomenon, exactly as described in my paper, appears to have continued with slight variation ever since, that is, for a period of twelve years, subject, however, to the variation formerly mentioned, that when the brine is actively withdrawn by pumps, for the manufacture of salt, the periods lengthen.


1990 ◽  
Vol 54 (377) ◽  
pp. 629-636 ◽  
Author(s):  
D. A. C. Manning ◽  
D. W. Strutt

AbstractThe occurrence is reported of a saline spring water from Weardale, which compositionally closely resembles other saline waters derived from the Carnmenellis granite, southwest England. The total dissolved solutes achieve approximately 38 000 mg/L, and alkali geothermometers suggest equilibration temperatures of approximately 150°C, equivalent to a depth of 4 km. Using Na, K and Li it is possible to compare the composition of the spring water with those of other spring waters derived from Carboniferous sequences adjacent to the North Pennine Orefield and with published data for fluid inclusions from North Pennine fluorite. These compositional parameters suggest that the ancient mineralizing fluids resemble modern Carboniferous sediment-derived waters and contain a relatively minor component of granite-derived water. Data for Br and Cl indicate that a significant component of the present day Weardale spring waters was probably ultimately derived from organic-rich sedimentary sequences while data for K, Na and Li indicate the importance of a component derived from a permeable granite aquifer. The Weardale springwaters continue to have ‘mineralizing’ potential, in view of the possibility that they may have precipitated quartz or chalcedony during their ascent.


Phytotaxa ◽  
2016 ◽  
Vol 260 (1) ◽  
pp. 95 ◽  
Author(s):  
CARLOS E. WETZEL ◽  
LUC ECTOR

Navicula thermophila Manguin in Bourrelly & Manguin (1952: 60) was described from a hot saline spring in Guadeloupe (French Antilles). The species with diminutive proportions was described as follows:


2021 ◽  
Vol 9 (10) ◽  
pp. 2043
Author(s):  
Israel Olonade ◽  
Leonardo Joaquim van Zyl ◽  
Marla Trindade

Recent years have seen the classification and reclassification of many viruses related to the model enterobacterial phage P2. Here, we report the identification of a prophage (Smhb1) that infects Salinivibrio kushneri BNH isolated from a Namib Desert salt pan (playa). Analysis of the genome revealed that it showed the greatest similarity to P2-like phages that infect Vibrio species and showed no relation to any of the previously described Salinivibrio-infecting phages. Despite being distantly related to these Vibrio infecting phages and sharing the same modular gene arrangement as seen in most P2-like viruses, the nucleotide identity to its closest relatives suggest that, for now, Smhb1 is the lone member of the Peduovirus genus Playavirus. Although host range testing was not extensive and no secondary host could be identified for Smhb1, genomic evidence suggests that the phage is capable of infecting other Salinivibrio species, including Salinivibrio proteolyticus DV isolated from the same playa. Taken together, the analysis presented here demonstrates how adaptable the P2 phage model can be.


2011 ◽  
Vol 61 (1) ◽  
pp. 110-117 ◽  
Author(s):  
Galina Dubinina ◽  
Margarita Grabovich ◽  
Natalia Leshcheva ◽  
Frederick A. Rainey ◽  
Ekaterina Gavrish

A novel strain of fermenting, aerotolerant, chemo-organoheterotrophic spirochaete designated PT was isolated from a sulfur ‘Thiodendron’ mat in a saline spring at the Staraya Russa resort (Novgorod Region, Russia). Cells of strain PT exhibited a helical shape. The spirochaete required sulfide in the growth medium and was able to oxidize it non-enzymically to elemental sulfur via the interaction of H2O2 with sulfide and deposit it in the periplasmic space. Growth occurred at 4–32 °C (optimum at 28–30 °C), pH 6.0–8.5 (optimum pH 7.0–7.5), and in 0.1–1 M NaCl (optimum 0.35 M). The isolate used several sugars and polysaccharides as carbon or energy sources but did not use peptides, amino acids, organic acids or alcohols. The products of glucose fermentation were formate, acetate, ethanol, pyruvate, CO2 and H2. The genomic DNA G+C content was 41.7 mol%. 16S rRNA gene sequence analysis showed that strain PT fell within a group of species in the genus Spirochaeta, including Spirochaeta litoralis, S. isovalerica and S. cellobiosiphila, with which it shared less then 89 % sequence similarity. On the basis of its morphology, physiology and other phenotypic properties, as well as its phylogenetic position, the new isolate is considered to represent a novel species of the genus Spirochaeta, for which the name Spirochaeta perfilievii sp. nov. is proposed. The type strain is PT (=DSM 19205T =VKM B-2514T).


2022 ◽  
Vol 9 ◽  
Author(s):  
Qilin Li ◽  
Ciping Zhao ◽  
Yun Wang ◽  
Yiying Zhou ◽  
Hua Ran

The Simao Basin is characterized by strong tectonic activity and frequent seismicity. This study investigated the hydrochemical characteristics of 21 thermal springs in the Simao Basin from 2018 to 2020. In this study period, the 2018 Mojiang M5.9 earthquake caused several hydrochemical changes. The results indicate that the Simao Basin contained saline spring waters, HCO3−-rich spring waters, and SO42−-rich spring waters. In the study area, the water chemistry types were controlled by stratum lithology. Saline springs flowed through red beds and dissolved large amounts of halite, which is a rich source of Cl−and Na+ ions. In the hot spring waters, Ca2+ (Mg2+) and HCO3− were mainly derived from the dissolution of carbonate minerals, gypsum, and anhydrite of Triassic rocks. The higher SO42- content in the hot spring waters was caused by the pyrite present in Ailaoshan metamorphic rocks. The reservoir temperatures (121–289 °C) in the Simao Basin were estimated by the silica-enthalpy mixing model equation and the silica-enthalpy diagram. The hot springs had higher reservoir temperatures (>250 °C) and were mainly located at the edges of the basin. Metamorphic rocks exposed in the region had low permeabilities and these springs was close to nearby deep faults that provided deep heat. In most springs, the concentrations of Ca2+ and HCO3− ions increased obviously before the 2018 Mojiang M5.9 earthquake; however, the concentrations of these ions decreased after the earthquake. The hydrogeochemical variations might be attributed to the vigorous water-rock interactions and the mixing of secondary fluids. The entry of cold shallow groundwater caused changes in the reservoir temperatures of some spring samples.


2010 ◽  
Vol 60 (6) ◽  
pp. 1437-1443 ◽  
Author(s):  
C. Díaz-Cárdenas ◽  
B. K. C. Patel ◽  
S. Baena

A Gram-negative, aerobic, mesophilic, non-spore-forming, chemotrophic, chlorophyll-lacking, nitrogen-fixing bacterium, designated strain USBA 355T, was isolated from the saline spring ‘Salado de Consotá’ situated in the Colombian Andes. The non-flagellated cells of strain USBA 355T were straight to slightly curved rods (0.6–0.7 × 3.0–3.5 μm). Growth occurred optimally at 30 °C (growth temperature range between 20 and 40 °C), at pH 6.5–6.7 (pH growth range between 5.0 and 8.0) and at 0.5 % NaCl (w/v) (range between 0 and 4 %). The major quinone present was Q-10 and the predominant fatty acids identified were C19 : 0 cyclo ω8c, C18 : 1 ω7c and C18 : 0. The G+C content of the chromosomal DNA was 71±1 mol%. 16S rRNA gene sequence analysis indicated that strain USBA 355T formed a distant phylogenetic line of descent with members of the genus Thalassobaculum, family Rhodospirillaceae, class Alphaproteobacteria (90 % gene sequence similarity). Comparison of the phylogenetic, chemotaxonomic and physiological features of strain USBA 355T with all other members of the family Rhodospirillaceae suggested that it represents a novel genus and species for which the name Tistlia consotensis gen. nov., sp. nov. is proposed. The type strain of the type species is USBA 355T (=JCM 15529T=KCTC 22406T).


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