نتایج جستجو برای: dolomitic composition
تعداد نتایج: 260041 فیلتر نتایج به سال:
nowadays, organic fertilizers play an important role in agriculture. they are progressively substituting chemical fertilizers to prevent their harmful impact on human health and the environment. they provide high yield, better quality products and a shorter period of harvesting crops. in this study, the mineral elements: primary macronutrient (n, po3- and k+), secondary macronutrient: (ca2+, mg...
Abstract We studied the site ecology of Salvia brachyodon (Lamiaceae), a narrow endemic eastern Adriatic, which is now restricted to only three sites, using sigmatistic method and numerical analyses. Four floristically ecologically well-defined groups stands, representing different syntaxa, were identified, corresponding sampling sites. The majority stands represent dry (sub)Mediterranean rocky...
Dolomites and eruptive rocks are well-developed in the Permian Fengcheng Formation Junggar Basin China, which oil gas accumulated extensively. Until now, high-yield industrial flows have been obtained dolomitic tuff of second unit Formation, demonstrates huge exploration potential thick layer massive tuff. The lithology this area has gradually transformed from dolomite, to siltstone east west. ...
a total of 90 species, belonging to 29 genera and 15 families, observed from an urban wetland of meghalaya is the species-rich rotifera assemblage known till date from any sub-tropical ecosystem of the indian sub-region. total richness (s) merits biodiversity value as ~56.0, ~ 38.0 and ~23.0 % of the species recorded from meghalaya, northeast india (nei) and india, respectively while several ro...
b a ckground: previous studies have suggested that sex may be a factor influencing basal metabolic rate (bmr) in adults and school age children. however, few data are available about the effects of sex on bmr in pre-school children. in the present study, we investigated whether sex differences contribute to variations in bmr in pre-school age children. m et h o ds : measurements were made on th...
A consanguineous origin of the sparry siderite and magnesite mineralizations of the Eastern Alps has been repeatedly discussed in the past, often without the back-up of sound scientific arguments. Here, it is shown that the characteristics of these mineralizations including structures, fluid parameters, timing etc. are amazingly similar suggesting in fact the genetic linkage of these deposits. ...
Mobilization of arsenic and other trace metal contaminants during managed aquifer recharge (MAR) poses a challenge to maintaining local groundwater quality and to ensuring the viability of aquifer storage and recovery techniques. Arsenic release from sediments into solution has occurred during purified recycled water recharge of shallow aquifers within Orange County, CA. Accordingly, we examine...
Copyright © 2012 by The Geochemical Society of Japan. as spectroscopic characteristics was discussed in some studies (Wassenaar et al., 1990; Grøn et al., 1996; Artinger et al., 2000). Thurman (1985) studied several properties of HS isolated from Ca(HCO3)2 and CaSO4-rich groundwater originating from different depths in sandy, dolomitic or limy aquifers. He found that groundwater containing orga...
The complex interplay between depositional facies and diagenesis in dolostones presents numerous challenges for calculating petrophysical properties from wireline logs. Complex pore geometries and mineralogies control rock petrophysical properties, and equations for calculating porosities and saturations must therefore be tailored to specific pore geometry-mineralogy combinations. The complex m...
Using media with low water activity, a large numbers of aureobasidium-like black yeasts were isolated from glacial and subglacial ice of three polythermal glaciers from the coastal Arctic environment of Kongsfjorden (Svalbard, Spitsbergen), as well as from adjacent sea water, sea ice and glacial meltwaters. To characterise the genetic variability of Aureobasidium pullulans strains originating f...
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