Results 31 to 40 of about 429,179 (286)

The geochemistry and geomicrobiology of relict hydrothermal sulphide deposits

, 2000
The diagenetic re-mineralisation of seafloor-sulphide deposits and the role of microbes in the metal-exchange processes were investigated in metalliferous sediments from the Alvin relict hydrothermal zone in the TAG area at 26º8'N (Mid-Atlantic Ridge ...
Severmann, S.
core   +2 more sources

Characteristics Of Hydrothermal Alteration In Cijulang Area, West Java, Indonesia [PDF]

, 2015
Characterization of hydrothermal alteration in theCijulang area (West Java, Indonesia) was carriedout using shortwave infrared spectroscopy. Hydrothermal alteration in the Cijulang area occurs in the calc-alkaline volcanic and volcaniclastic rocks ...
Al-Furqan, Reza, Harijoko, Agung, Warmada, I Wayan, Tun, Myo Min, Watanabe, Koichiro   +4 more
core   +1 more source

Evaluation of Supervised Machine Learning Algorithms for Mapping Hydrothermal Alteration Zones Associated with Porphyry Copper Mineralization Using ASTER Satellite Imagery

Mining
Hydrothermal alteration mapping is a critical component of porphyry copper exploration because alteration assemblages provide important vectors toward mineralization.
Mahin Rostami, Amin Beiranvand Pour
doaj   +1 more source

The Quartz Veins, Hydrothermal Alteration and Ore Mineralization of Orogenic Gold Deposit at Mendoke Mountains, Southeast Sulawesi, Indonesia

Iraqi Geological Journal, 2022
The research at Mendoke Mountains, Southeast Sulawesi Province, particularly for the study of gold deposits, becomes a new challenge because there is no previous detailed study.
Hasria, Arifudin Idrus, Wayan Warmada
doaj   +1 more source

A Remote Sensing-Based Application of Bayesian Networks for Epithermal Gold Potential Mapping in Ahar-Arasbaran Area, NW Iran

Remote Sensing, 2019
Mapping hydrothermal alteration minerals using multispectral remote sensing satellite imagery provides vital information for the exploration of porphyry and epithermal ore mineralizations.
Seyed Mohammad Bolouki, Hamid Reza Ramazi, Abbas Maghsoudi, Amin Beiranvand Pour, Ghahraman Sohrabi   +4 more
doaj   +1 more source

Characterization of the key membrane protein cytochrome Cyc2 from Ghiorsea bivora

FEBS Open Bio, EarlyView.
This study reports the first detailed biochemical analysis of Cyc2TAG1_1, a cytochrome protein involved in microbial iron oxidation. We produced and purified this enzyme in E. coli, then measured its iron‐oxidizing efficiency, and characterized its electrical and structural properties.
Josiane Azizi, Alain Dolla, Frauke Baymann, Celine Rommevaux, Latifa Elantak, Helene Gaussier, Matthieu Nouailler   +6 more
wiley   +1 more source

Spectral Unmixing for Mapping a Hydrothermal Field in a Volcanic Environment Applied on ASTER, Landsat-8/OLI, and Sentinel-2 MSI Satellite Multispectral Data: The Nisyros (Greece) Case Study

Remote Sensing, 2020
The aim of this study was to propose a methodology that provides a detailed description of the argillic zone of a hydrothermal field, based on satellite multispectral data.
Athanasia-Maria Tompolidi, Olga Sykioti, Konstantinos Koutroumbas, Issaak Parcharidis   +3 more
doaj   +1 more source

(Table 1) Properties and hydrothermal alteration of DSDP Hole 504B

, 1987
(Table 1) Properties and hydrothermal alteration of DSDP Hole ...
Minoru Kusakabe (6959414), Yoshiko Kikuchi (6982067), Hodaka Kawahata (6961301), Kawahata, Hodaka, Kusakabe, Minoru, Kikuchi, Yoshiko   +5 more
core   +1 more source

Electrospun Wood‐Derived Biopolymers as Electrodes in Electrochemical Energy Storage Technologies

Advanced Functional Materials, EarlyView.
Electrospinning transforms wood‐derived cellulose and lignin into architecturally defined, binder‐free carbon electrodes with tuneable porosity and functionality. This review shows how fibre design enables decoupled charge and mass transport, enhancing performance across battery systems, while identifying key challenges in spinnability, scalability ...
Michael W. Thielke, Hattie R. Chisnall, Jesus Vazquez Chavez, Ana B. Jorge Sobrido   +3 more
wiley   +1 more source

Multi-Scale Geophysics and Chemistry-Based Investigation of Alteration Evolution Mechanisms in Buried Hills of the Northern South China Sea

Journal of Marine Science and Engineering
Alteration is a common metamorphic process in igneous formations and recorded geological information in different times and spaces. Owing to its unique location, the igneous rocks of the buried hills in the northern South China Sea exhibit complex ...
Xinru Wang, Baozhi Pan, Yuhang Guo, Julin Zhang, Xun Yu, Pengji Zhang   +5 more
doaj   +1 more source