نتایج جستجو برای: dacite

تعداد نتایج: 251  

Journal: :Applied sciences 2021

Mudeungsan (Mount Mudeung) is an extinct volcano located in the southwestern part of South Korea that was formed Late Cretaceous period. This mountain, 1187 m above sea level, adjacent to Gwangju Metropolitan City, which has a large population (about 1.4 million) and volcanic rocks, including columnar joints, form various types outcrops. Although this mountain listed as national geopark 2014 UN...

Journal: :Soil Rens: Jurnal Ilmiah Lingkungan Tanah Pertanian 2022

The effort to utilize the soils optimally, especially Ultisols, requires an appropriate understanding related their characteristics. characteristics of Ultisols are sturdily influenced by soil-forming factors, viz. climate, parent material, pedogenic age and topography. purposes this study were determine chemical, physical, mineralogical soil development classification level Ultisol from two di...

Journal: :Arabian Journal of Geosciences 2021

The Zhob ophiolite is divided into Ali Khanzai, Omzha, and Naweoba blocks. geology comprises various lithological units including basalt–chert hyaloclastite mudstone units. consist of thick lava pelagic sediments. On the basis petrology geochemistry, lavas unit can be tholeiitic basalt, trachybasalt, basaltic andesite dacite, that more alkaline foidite, picrobasalt, tephrite-basanite. rocks hav...

Journal: :Jambura Geoscience Review 2023

The study is required to evaluate the groundwater condition, such as finding relationship with lithology, determining facies of groundwater, and providing an overview present conditions, genetics, quality. This aims explain between lithology chemistry, quality, determination chemical determine genetic type groundwater. uses field survey methods random sampling techniques, measurements physical ...

Journal: :Journal of physics 2022

Abstract West Sumatera is a region that has an abundance of natural resources in the form iron sand, one which area Pasia Jambak Beach, Padang. Beach type beach rumps and sandy beaches, grayish-brown sand rough grains on its surface. Iron could be formed due to weathering rocks materials found around coast, such as old ships others. This study aims see rock origin composition magnetic mineral e...

Journal: :Materials transactions 2022

This study developed an original constant-head permeability apparatus for rocks. can freely adjust the confining pressure and hydraulic (hydraulic gradient), directly measure runoff volume using electronic balance. conductivity more accurately than conventional method that measures a measuring cylinder. Second, this measured of Inada granite specimens (50 mm in diameter 40 length) under conditi...

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