نتایج جستجو برای: petrographical characteristics

تعداد نتایج: 660499  

Journal: :Chemical Geology 2023

This study discusses the hydrothermal formation of romanechite (Ba0.7Mn4.5O10.1.1H2O) in Romanèche Mn deposit and significance its age by combining ore petrogenesis 40Ar/39Ar ages. Romanechite occurs as a minor phase various manganese types remains poorly studied comparison with other K-bearing oxides (i.e., coronadite group) because scarcity, small grain size, intermixing poor crystallinity. T...

Journal: : 2022

Typically, granitic intrusions that document the lengthy and intricate history of magmatic-hydrothermal system are linked to tungsten deposits. Uncertainty persists about genetic relationship between mineralization development. The primary deposit in Dai Tu region, known as Nui Phao deposit, has been subject a petrographical microscopic examination. Tungsten area often occurs association with f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه الزهراء - دانشکده علوم تربیتی و روانشناسی 1391

abstract: research purpose: the purpose of this research is to identify academic databases assessment factors and criteria at law and political science majors. the necessity of this research is to distinguish academic databases assessment factors and criteria and to identify the most important ones and rank them in order to select an appropriate database according to students’ and faculty memb...

2013
Gerald Hofer Michael Wagreich Christoph Spötl GERALD HOFER MICHAEL WAGREICH CHRISTOPH SPÖTL

The interplay of Late Cretaceous basin subsidence and oscillations in sea level produced a mixed freshwater–marine succession within the Upper Cretaceous Gosau Group of the Northern Calcareous Alps. Cored sections from wells of the Glinzendorf and Gießhübl Syncline, as well as sediments from the outcrop area of Grünbach–Neue Welt and Slovakian equivalents have been investigated for their stable...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده ادبیات و علوم انسانی 1389

this study purported to compare and contrast the use of self-mention and evidentials as two mtadiscourse features in opinion columns of persian and english newspapers. the theoretical basis of this study is the idea that metadiscourse features vary across cultural boundaries. for this purpose, 150 persian and 150 english opinion columns were collected based on three factors of topic, audience a...

2008
M. Schmieder E. Buchner

Introduction and background: Ballen silica, in the modification of α-quartz (‘ballen quartz’) or α-cristobalite, has been regarded as an impactcharacterstic microscopic feature for decades. The report of ballen silica in impact melt rocks from the Mien impact structure (Sweden; the impact melt rocks were formerly considered as rhyolites) was the first description of ballen silica in impactites ...

Journal: :International Journal of Earth Sciences 2022

Abstract Pre‐Mesozoic basements of the Alpine belt commonly contain kilometre‐scale folds with steeply inclined axial planes and fold axes, which are named “Schlingen” folds. The structural evolution Schlingen their geodynamic significance for Variscan unclear. To close this gap, study investigates a well-preserved structure in Gotthard nappe (Central Swiss Alps). This evolved by combination sh...

Journal: :Jurnal Geologi dan Sumberdaya Mineral 2022

Eastern Indonesia has become an attractive venture for hydrocarbon exploration since 10 years ago. The discovery of from Miocene carbonate Tondo Formation opened a new opportunity and hopes in the Southeast Sulawesi region. Can we find other potential reservoirs Sulawesi? In this study, assess reconstruct depositional model reservoir quality Paleogene Tampakura Labengki Island, Sulawesi. This f...

Journal: :Personality & social psychology bulletin 2013
Laurie A Rudman Janell C Fetterolf Diana T Sanchez

The present research uniquely compared male control theory (MCT) versus female control theory (FCT) to illuminate motives for the sexual double standard (SDS), whereby men gain status from engaging in casual sex or having many sexual partners, but women are stigmatized for it. Consistent with MCT, men were more likely than women to endorse the SDS and to give sexual advice in ways that reinforc...

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