Results 31 to 40 of about 801 (184)

Petrogenesis of the Khaku pegmatites corundum-bearing in the margin of Alvand granite complex, and its comparison with important worldwide ruby and sapphire deposits

Journal of Economic Geology, 2022
Blue-colored corundum (sapphire) is found in syenitic pegmatites in Alvand igneous complex in the Khako area. From the petrographic point of view, the host rock is composed of feldspar and small amounts of quartz, which includes corundum crystals of ...
Hadis Sadeghi, Shahryar Mahmoudi, Mohammad Reza Jafari , Mohammad Ali Arian   +3 more
doaj   +1 more source

The Influence of Soil Properties on the Agronomic Efficacy of Rock Dust: A Comparative Analysis of a Semiarid Ultisol and Global Soil Types

Journal of Plant Nutrition and Soil Science, EarlyView.
ABSTRACT Background: Enhanced rock weathering (ERW) using silicate rock dust is a promising strategy for soil remineralization and carbon dioxide removal. However, its agronomic efficacy is highly dependent on soil properties. Aim: This study provides a comprehensive comparative analysis of the influence of soil type on the performance of rock dust ...
Dennis O. Galdino, William De Paiva
wiley   +1 more source

Detecting Lithium (Li) Mineralizations from Space: Current Research and Future Perspectives

Applied Sciences, 2020
Optical and thermal remote sensing data have been an important tool in geological exploration for certain deposit types. However, the present economic and technological advances demand the adaptation of the remote sensing data and image processing ...
Joana Cardoso-Fernandes, Ana C. Teodoro, Alexandre Lima, Mônica Perrotta, Encarnación Roda-Robles   +4 more
doaj   +1 more source

Green Transition, Extractive Continuities: Lithium Mining and the Environmental Contradictions of Sustainability

Sustainable Development, EarlyView.
ABSTRACT Global decarbonization has positioned lithium as a strategic mineral for electric vehicles, battery storage, and low‐carbon development. Yet its extraction raises serious environmental, political, and justice concerns that complicate dominant narratives of clean energy progress.
Jacob Kwakye
wiley   +1 more source

Quartz deformation characteristics, deformation temperature, and their constraints on pegmatites of the 509 Daobanxi lithium deposit in the West Kunlun area, Xinjiang

Dizhi lixue xuebao
Objective   The 509 Daobanxi deposit in the West Kunlun orogenic belt is a newly discovered large pegmatite-type lithium-polymetallic deposit in northwestern China.
HUO Hailong, CHEN Zhengle, ZHANG Qing, WANG Yong, MA Huadong, WANG Wei, ZHANG Wengao, LI Yong, HAN Fengbin, DU Xiaofei, MIN Zhuang, MENG Xiangpeng   +11 more
doaj   +1 more source

Prospecting of rare metals in the East-Ukrainian pegmatitе province – important part of geological exploration in Ukraine

Мінеральні ресурси України, 2021
Nowadays, there has significantly increased the interest of industry in rare metal mineralization in pegmatites, which determines their importance as raw materials for “critical elements” Ta, Nb, Li, Be, Sn, Y, TR, etc., and thus there is a need to re ...
V. V. Sukach, L. V. Isakov, V. P. Bezvynnyi, V. O. Shpylchak   +3 more
doaj   +1 more source

The Composition of Gahnite In Granitic Pegmatites From the Pampean Pegmatite Province, Argentina: Implications For Pegmatite Fractionation

The Canadian Mineralogist, 2015
Gahnite from LCT granitic pegmatites of the Comechingones (Blanca Dora, Juan Roman, Magdalena, La Ona, and Sin Nombre pegmatites) and Conlara (Nancy pegmatite) pegmatite districts, Argentina, was analyzed to investigate the relationship between its chemistry, pegmatite mineralogy, and pegmatite melt evolution.
Heimann, Adriana, Yonts, Jason A., Galliski, Miguel Angel   +2 more
openaire   +2 more sources

Appraisal of Six Natural Mica Reference Materials for In Situ Rb‐Sr Geochronology

Geostandards and Geoanalytical Research, EarlyView.
Key Points Evaluated six natural mica reference materials for in situ LA‐ICP‐MS/MS Rb‐Sr geochronology using geochemical, microstructural and isotopic characterisation. Identified robust primary reference materials: Mount Dromedary biotite (99.37 Ma) and Mica‐Fe biotite (307.75 Ma). La Posta biotite and Högsbo muscovite are suitable secondary reference
Hugo K.H. Olierook, Bruno V. Ribeiro, Janne Liebmann, Kai Rankenburg, Fred Jourdan, Ahmad Redaa, Jarred C. Lloyd, Thomas M. Belgrano, Carlos R. Corella Santa Cruz, Yujin Jegal, Julien Mercadier, Catherine Zimmermann, Jie Yu, Andreas Zametzer, Christopher L. Kirkland, Sarah E. Gilbert, Craig D. Storey, Luc S. Doucet, Isabelle Jones, Louisa Stokes, Thomas Zack, Delia Rösel, Denis Fougerouse, Jonas Kaempf, Priyanjan Datta, Hijas Hameed, Noreen J. Evans, Malcolm P. Roberts, Juraj Farkas, Stijn Glorie, Celia Mayers, R. Adam Frew, Sarah Al Odeh, Chloe E. Roche, Massimo Chiaradia, Alicia M. Cruz‐Uribe, Alan S. Collins, Andreas Karlsson, Anusha Shantha Kumara   +38 more
wiley   +1 more source

Semantic Segmentation of Pegmatite Dikes in High-Resolution Remote Sensing Imagery Using GAD-UNet++ in the Yilanlike Area, South Tianshan

Remote Sensing
Pegmatite dikes are important prospecting indicators for rare-metal deposits, whereas traditional methods for pegmatite dike identification are constrained by the limited capability of human visual interpretation to capture information from remote ...
Zirui Wu, Chuan Chen, Yuanjun Yu, Yong Tian, Jian Yu, Fang Xia   +5 more
doaj   +1 more source

Metamorphic or Igneous Zircon? Classification Through Rare Earth Elements, Machine Learning and Logistic Regression

Journal of Metamorphic Geology, EarlyView.
ABSTRACT Zircon is a common, highly refractory accessory mineral found in sedimentary, igneous and metamorphic rocks that forms through various processes (e.g., magmatic, hydrothermal, metamorphic growth and recrystallization). Trace element compositions of detrital zircon have been widely applied to understanding tectonic processes and continental ...
Jarrod M. Burges, Chris Yakymchuk, Michael P. DiMaio, Timothy C. C. Lui, Anirudh Prabhu, Shaunna M. Morrison   +5 more
wiley   +1 more source