Results 61 to 70 of about 285 (183)

Microbial Distributions Across Wide‐Ranging Temperature Gradients of Hot Springs in Thailand: A Review of 35 Years of Research on Hot Spring‐Associated Microorganisms

open access: yesEnvironmental Microbiology Reports, Volume 18, Issue 1, February 2026.
This review article summarised 35 years of research on microbial distributions (bacteria, archaea and microbial eukaryotes) across wide‐ranging hot spring temperatures in Thailand, including the overall research progression, scopes and methodologies of previous studies.
C. Sriaporn   +5 more
wiley   +1 more source

Alteration Alteration, Mineralization and Geochemistry of Metamorphic Rocks Hosted Hydrothermal Gold Deposit at Rumbia Mountains, Bombana Regency, Southeast Sulawesi, Indonesia

open access: yesJGEET: Journal of Geoscience, Engineering, Environment and Technology, 2019
In Indonesia, gold is commonly mined from porphyry, epithermal and skarn type deposits that are commonly found in volcanic/magmatic belts. However, were recently numerous gold prospects discovered in association with metamorphic rocks.
Hasria Hasria   +2 more
doaj   +1 more source

Ultrahigh‐Temperature Metamorphism and Near‐Isobaric Cooling of Garnet‐Orthopyroxene Granulite Xenoliths in the Sancheong Anorthosite, Yeongnam Massif, Korea

open access: yesJournal of Metamorphic Geology, Volume 44, Issue 1, Page 20-46, January 2026.
ABSTRACT Elevated heat flow associated with mafic magmatism in accretionary orogens has often been proposed as a driving mechanism for (ultra)high‐temperature (UHT) metamorphism and anatexis. The Sancheong–Hadong complex, located in the southern Yeongnam Massif, Korea, consists of a ca.
Yuyoung Lee   +3 more
wiley   +1 more source

Origin and Evolution of the Ore-Forming Fluids in the Liyuan Gold Deposit, Central North China Craton: Constraints from Fluid Inclusions and H-O-C Isotopic Compositions

open access: yesGeofluids, 2017
The Liyuan gold deposit is hosted within Archean basement metamorphic rocks and controlled by the NNE-trending faults in the central North China Craton. The ore-forming processes can be divided into three stages (early, middle, and late).
Ying Ma   +3 more
doaj   +1 more source

A Hybrid LightGBM–WOA Model for Accurate Prediction of Back‐Break in Mine Blasting Operations: A Case Study

open access: yesShock and Vibration, Volume 2026, Issue 1, 2026.
Back‐break (BB), a significant environmental concern in mining operations, arises from the improper execution of blasting techniques. The primary cause of BB is the inadequate design of blasting pattern parameters, which leads to structural issues such as fractures, overhangs, and underhangs on the construction face.
Mojtaba Yari   +7 more
wiley   +1 more source

Overview of geothermal resource exploration and development in North Africa

open access: yesDeep Underground Science and Engineering, Volume 4, Issue 4, Page 673-685, December 2025.
This article reviews geothermal exploration in North Africa, highlighting key activities, government policies, and exploration findings across Mauritania, Morocco, Algeria, Tunisia, Libya, and Egypt. The region's substantial geothermal potential, driven by tectonic activity, positions it to play a significant role in the global geothermal energy ...
Meryem Redouane
wiley   +1 more source

Microscale geochemical variations in metamorphic‐hydrothermal scheelite and insights into trace element sources (Otago Schist, New Zealand)

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 68, Issue 4, Page 659-674, December 2025.
ABSTRACT Scheelite (CaWO4) trace elements are frequently used to fingerprint sources of mineralising fluids or styles of mineralisation. However, the chemistries of scheelite from hydrothermal‐metamorphic Otago Schist scheelite‐quartz veins have complicated parageneses.
Mark T. Ireland   +5 more
wiley   +1 more source

Fluid-controlled element transport and mineralization in subduction zones

open access: yesSolid Earth Sciences, 2018
Many of the world's metal deposits are associated with hydrothermal fluids in subduction zones, indicating the intimate relationship between subduction process and mineralization.
Yang-Yang Wang, Yilin Xiao
doaj   +1 more source

Environmental evolution of cover deposits on chemically distinctive bare ground, New Zealand: review and temporal contexts

open access: yesNew Zealand Journal of Geology and Geophysics, Volume 68, Issue 5, Page 1120-1152, December 2025.
ABSTRACT Chemically distinctive features such as high salinity, low nutrient contents, and extremes of pH can limit the development of a vegetation cover on soil‐free bare ground. This study synthesises our previous work on the geoecology of numerous chemically distinctive bare sites in the South Island and adds a temporal component within the last ...
Dave Craw, Cathy Rufaut
wiley   +1 more source

Auriferous Fluid Evolution and the Role of Carbonaceous Matter in a Saddle‐Reef Gold Deposit: Dufferin Deposit, Meguma Terrane, Nova Scotia, Canada

open access: yesGeochemistry, Geophysics, Geosystems
The metaturbidite‐hosted, ∼380 Ma Dufferin gold deposit, Meguma terrane, northeastern Appalachian Orogen (Nova Scotia, Canada) is an orogenic gold deposit with mineralized saddle reef‐type quartz veins hosted by metasandstones and black slates in a ...
Mitchell J. Kerr   +4 more
doaj   +1 more source

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