Results 21 to 30 of about 824,803 (284)

Effect of nanoparticle of volcanic ash and rock phosphate on some soil chemical properties of variable charge Andisols, Indonesia

Soil & Environment, 2018
Andisols is a variable charge soil where fertilizations to the soil do not give the same result as that to the soils with permanent charges. Therefore, amelioration is needed to improve the soil chemical properties.
Mahfud Arifin, Rina Devnita, Ade Setiawan, Apong Sandrawati, Nenny Nurlaeny , Anne Yuliana   +5 more
doaj   +1 more source

ANALISIS BAHAYA, LINTASAN, DAN SISTEM PROTEKSI TERHADAP POTENSI LONGSORAN TIPE JATUHAN BATU PADA LERENG BANGUNAN PELIMPAH BENDUNGAN TUGU, JAWA TIMUR

Jurnal Teknik Hidraulik, 2021
The construction of the Tugu Dam spillway does not escape the problem of slope instability, especially the rock fall type landslide as a result of the rock slope cutting work at STA+80.
Muhammad Iqbal Hamidi, Imam Achmad Sadisun   +1 more
doaj   +1 more source

Performance of the X-ray powder diffraction (XRD), X-ray fluorescence (XRF) and the industrial computed tomography used for characterization of the vesicular volcanic rock.

Brazilian Journal of Radiation Sciences, 2021
Volcanic rock is a designation in geology given to extrusive igneous rocks. One type of igneous rock of interest, in economic terms, is vesicular, since, besides the knowledge of the morphology (positioning, size, direction, and interconnectivity of the ...
Rodrigo Silva Santos, Francisco Assis Cavallaro, Thiago Lynyker da Silva Bernardes, Rafael Aquino Amadeu, Rafael H. L. Garcia, Alexandre França Velo, Carlos Henrique Mesquita, Margarida Mizue Hamada   +7 more
doaj   +1 more source

Method of identifying and characterizing of volcanic traps and its application

Shiyou shiyan dizhi, 2021
Volcanic rocks were widely developed in sedimentary basins in China. The Songliao, Junggar and Sichuan basins have got great research successes and exploration discoveries in igneous reservoirs, which have become one of the important fields for oil and ...
Shuang YANG, Zhongbo LI, Xiangbin YAN, Lixue CAI   +3 more
doaj   +1 more source

The analysis of volcanic activity influences at the lower and middle part of Sentolo Formation, Kulon Progo using petrographic method

MATEC Web of Conferences, 2018
The research area is a part of South Serayu Mountain zone, specifically Bregada Kulon Progo. The Bregada Kulon Progo is a product of volcanic activity in the past, which can be seen by the volcanic rock called Old Andesite Formation.
Winarno Tri, Marin Jenian, Hani Pratama Ilham, Kurniasih Anis   +3 more
doaj   +1 more source

Machine Learning in Discriminating Active Volcanoes of the Hellenic Volcanic Arc

Applied Sciences, 2021
Identifying the provenance of volcanic rocks can be essential for improving geological maps in the field of geology and providing a tool for the geochemical fingerprinting of ancient artifacts like millstones and anchors in the field of geoarchaeology ...
Athanasios G. Ouzounis, George A. Papakostas   +1 more
doaj   +1 more source

Arsenic Mineral in Volcanic Tuff, a Source of Arsenic Anomaly in Groundwater: City of Chihuahua, Mexico

Geosciences, 2022
Arsenic is a naturally occurring trace element that causes many health effects when present in drinking water. Elevated arsenic concentrations in water are often attributed to nearby felsic volcanic sequences; however, the specific rock units to which ...
Minghua Ren, José Alfredo Rodríguez-Pineda, Philip Goodell   +2 more
doaj   +1 more source

Functionalizing Micro‐to‐Mesoscopic Electrode Architectures for Regulating Electron Transfer Behaviors in Electrocatalysis

Advanced Functional Materials, EarlyView.
A systematic review is conducted to assess the influence of electrode architecture across micro‐ to mesoscopic length scales on electron‐transfer pathways in electrocatalysis. We discuss the structure‐activity relationships in electrocatalytic applications, including resource recovery and environmental remediation, and provide cost‐effective, efficient
Manshu Zhao, Jiaojiao Zhang, Shideng Yuan, Xinmeng Yu, Keming Wan, Xiaoguang Duan, Zhining Wang   +6 more
wiley   +1 more source

Fractal Analysis of Volcanic Rock Image Based on Difference Box-Counting Dimension and Gray-Level Co-Occurrence Matrix: A Case Study in the Liaohe Basin, China

Fractal and Fractional
Volcanic rocks, as a widely distributed rock type on the earth, are mostly buried deep within basins, and their internal structures possess characteristics by irregularity and self-similarity.
Sijia Li, Zhuwen Wang, Dan Mou
doaj   +1 more source

Reservoir characteristics in the Cretaceous volcanic rocks of Songliao Basin, China: A case of dynamics and evolution of the volcano-porosity and diagenesis

Energy Exploration & Exploitation, 2019
To explain the strong spatial heterogeneity of volcanic reservoirs porosity in the Songliao Basin and provide new ideas for predicting good volcanic reservoirs in other similar basins, the relationship between the pore evolution process and lithology of ...
Haitao Sun, Dakang Zhong, Weijia Zhan
doaj   +1 more source