نتایج جستجو برای: geochemical potential mapping

تعداد نتایج: 1258017  

2016
Aida Rodrigo Albors Kate G Storey

Experiments in mice shed new light on an elusive population of embryonic cells called neuromesodermal progenitors.

Nafise Radi Omid Tabatabaei,

Although story mapping strategy has been shown to be beneficial in many reading comprehension classes, the benefits of this technique have not been thoroughly investigated in L2 writing research. The small number of previous studies (e.g., Li, 2007; Brunner, 2010) have found the potential benefits of using story mapping strategy on students’ writing performance, but they did not focus on differ...

Journal: :Geochemistry Geophysics Geosystems 2023

Glauconite is an authigenic clay mineral that common in marine sedimentary successions. Dating of glauconite to determine the depositional age sequences has a long history but fallen into disfavor due difficulty obtaining “pure” separates. Recent advances petrography and reaction cell mass spectrometry permit rapid situ Rb-Sr dating carefully screened grains. However, remains susceptible burial...

Journal: :زمین شناسی اقتصادی 0
مهدی بمانی سید حسین مجتهدزاده امیر حسین کوهساری

introduction mohammad-abad oryan is the only potential source of borate in the north-east of iran located in 50 km south of sabzevar. the area is located in tuff marl, tuffaceous marl, volcanic braccia and tuff braccia structures. remote sensing techniques, geological studies and integration of this data in gis were applied in an area of about 600 square kilometers to locate the promising areas...

غلامی, نرگس, مظاهری, سید احمد, کریم‌پور, محمدحسن ,

The study area is located about 45 km of southwest Neyshabour and east of Arghash village. Both intrusive and volcanic rocks are exposed in the study area and they are intensively altered due to hydrothermal fluid. The alteration zoning in the study area consists of potassic, sericitic, carbonatization, silicification and propylitic. More than 10 intrusive rocks with composition in the range of...

2011
Yuxin Wu Jonathan B Ajo-Franklin Nicolas Spycher Susan S Hubbard Guoxiang Zhang Kenneth H Williams Joanna Taylor Yoshiko Fujita Robert Smith

Ureolytically-driven calcium carbonate precipitation is the basis for a promising in-situ remediation method for sequestration of divalent radionuclide and trace metal ions. It has also been proposed for use in geotechnical engineering for soil strengthening applications. Monitoring the occurrence, spatial distribution, and temporal evolution of calcium carbonate precipitation in the subsurface...

Journal: :زمین شناسی اقتصادی 0
مهدی هاشمی گهرویی بهنام شفیعی بافتی غلامحسین شمعانیان حسین تقی زاده

in order to assess the potential of copper mineralization and its associated elements in soltan meydan basaltic formation situated in the north of shahrud, the method of stream sediment and heavy mineral has been used. to achieve this aim, totally 68 samples of sediments (-80 mesh in particle size) and 6 samples of heavy minerals (-20 mesh in particle size) have been collected in an optimized n...

Nafise Radi Omid Tabatabaei,

Although story mapping strategy has been shown to be beneficial in many reading comprehension classes, the benefits of this technique have not been thoroughly investigated in L2 writing research. The small number of previous studies (e.g., Li, 2007; Brunner, 2010) have found the potential benefits of using story mapping strategy on students’ writing performance, but they did not focus on differ...

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