Results 61 to 70 of about 53,501 (300)
Mineralogical characterization of Sn deposits from the Santa Fe District, Bolivia [PDF]
, 2015 The Sn-Zn-Pb-Ag Japo-Santa Fe-Morococala ore deposit is located in the Central Andean Belt province. The ore mineralization is hosted in a Paleozoic metasedimentary sequence and porphyritic Oligocene-Miocene igneous rocks. Ore minerals occur in veins and
Alfonso Abella, María Pura +4 more
core
Sintesis Hidrotermal Dari Serbuk Oksida Keramik [PDF]
, 2008 Serbuk inorganik memainkan peranan penting dalam berbagai bidang yaitu keramik, katalist, obat – obatan, makanan dan lain- lain. Powder preparation adalah langkah yang sangat penting dalam proses pembuatan keramik.
Walujodjati, A. (A)
core +1 more source
Advanced Functional Materials, EarlyView.The citric acid/urea (CA‐Urea) precursor system offers a versatile, scalable route to carbon dots with tunable luminescence and multifunctionality. Mechanistic insights into precursor chemistry and reaction parameters have enabled doping, surface modification, and hybridization strategies, yielding CDs for luminescent devices, sensing, catalysis ...
Yupeng Liu +10 more
wiley +1 more source
Geothermal Energy, 2023 This study focuses on hydrothermal alteration in the geothermal reservoir of Cerro Pabellón (Andean Cordillera, Northern Chile). It is based on CP2A and CP5A production wells drilled above a local normal fault and presenting unlike hydraulic properties ...
J. Vidal +6 more
doaj +1 more source
Multi‐Scale Interface Engineering of MXenes for Multifunctional Sensory Systems
Advanced Functional Materials, EarlyView.MXenes, as two‐dimensional transition metal carbides and nitrides, demonstrate remarkable capabilities for multifunctional sensing applications. This review systematically examines multi‐scale interface engineering approaches that enhance sensing performance, enable diverse detection functionalities, and improve system‐level compatibility in MXene ...
Jiaying Liao, Sin‐Yi Pang, Jianhua Hao
wiley +1 more source
Application of Machine Learning Methods for Hydrothermal Alteration Zoning using Remote Sensing Data: a Case Study of the Koldar Massif [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information SciencesHydrothermal alteration zones are among the key indicators in the exploration of porphyry copper deposits. In this study, a remote sensing-based approach was implemented to map hydrothermal alteration zones using ASTER satellite data and built-in ...
B. Adebiyet +5 more
doaj +1 more source
Hydrothermal alteration of chabazite.
The Journal of the Japanese Association of Mineralogists, Petrologists and Economic Geologists, 1978 The alteration of zeolites in the system chabazite-(SiO2) -H2O was experimentally studied using conventional hydrothermal techniques. Chabazite was transformed into the following mineral phases with increased temperature in accordance with the quantity of free silica in the reaction system.(A) Ca-harmotome+gonnasdite→wairakite→anorthite. (B) heulandite→
openaire +2 more sources
Hydrothermal alteration in the Witwatersrand goldfields
Ore Geology Reviews, 2015 Abstract Alteration is recorded throughout much of the 3 km thick Upper Witwatersrand succession in South Africa, and extends for 300 km around the basin and 50 km into the basin. The evidence for this alteration comes from petrography, mineralogy, geochemistry, rock fabrics and stratigraphy.
G. Neil Phillips, Roger Powell
openaire +1 more source
Advanced Functional Materials, EarlyView.This work presents a rate‐adaptive site transformation strategy in Ag‑ethylenediamine intercalated Co9S8, which not only enables parallel water dissociation and H* adsorption, but also allows the catalyst to provide more active sites under high demand, removing a major bottleneck. The catalyst achieves a record current density of 4.2 A cm−2@2.0 V, with
Yongqi Ye +3 more
wiley +1 more source
Revista Mexicana de Ciencias Geológicas, 2018 To investigate the effects of hydrothermal alteration on the chemistry of volcanic rocks, we analyzed the whole rock chemical composition (major and trace elements, including rare-earth elements – REE) of two distinct portions of a drill well core sample
Ignacio S. Torres-Alvarado +3 more
doaj