Results 81 to 90 of about 1,691 (221)

In Situ U-Pb Geochronology of Calcite from the World’s Largest Antimony Deposit at Xikuangshan, Southern China

open access: yes, 2022
The Xikuangshan antimony (Sb) deposit is the world’s largest known Sb deposit. Due to the lack of suitable minerals for reliable high-precision radiometric dating, it remains difficult to determine the exact age of Sb mineralization in this deposit.
Jianqing Lai   +9 more
core   +1 more source

Navigating the Zero Fluoroscopy Frontier: Current Tools, Evidence and Future Directions in Electrophysiology Procedures

open access: yesPacing and Clinical Electrophysiology, EarlyView.
Graphical Abstract ABSTRACT Fluoroscopy has traditionally been the mainstay imaging technique for guidance during electrophysiology (EP) ablation procedures. The numerous disadvantages associated with radiation exposure for both operators and patients have created the need for zero‐fluoroscopy (ZF) approaches. Today, electrophysiologists have access to
Dimitrios Kotzadamis   +6 more
wiley   +1 more source

Network‐level disconnectivity tracks poststroke depressive symptom improvement

open access: yesPsychiatry and Clinical Neurosciences, EarlyView.
Aims Poststroke depression is the most common psychological condition following a stroke and can severely impact outcome. However, the neurobiological biomarkers associated with recovery of poststroke depression remain unclear. In this longitudinal observational study, we set out to investigate the effect of lesion‐induced focal damage and network ...
Aleksi J. Sihvonen   +6 more
wiley   +1 more source

Laboratory investigation of valuable minerals concentration from poly-metallic wolfram-antimony ore deposit "osanica"

open access: yes, 2006
This work presents the results of complex laboratory investigation carried out in order to determine the possibilities to produce quality concentrates of wolfram and antimony minerals out of polymetallic wolfram-antimony ore from Osanica deposit, near ...
Bartulović, Zoran   +3 more
core  

Impacts of reclamation approaches on plant establishment in an arid environment during copper mine revegetation

open access: yesRestoration Ecology, EarlyView.
Abstract Introduction Revegetation using native vegetation is a commonly used technique to reclaim landscapes degraded by mining activities. Revegetation efforts in the arid Southwestern United States face physical, geochemical, hydrological, and biological challenges unique to drylands.
Sierra T. Lauman   +3 more
wiley   +1 more source

Native Antimony float-ore from Precambrian of Rajasthan, India

open access: yes, 2005
Placer concentrations of rolled chunks of heavy, silvery-white, metallic mineral occur along a rivulet (N25°40.013'; E75°20.851') 15 km east of Jahazpur town of eastern Rajasthan.
Ramboz, Claire   +3 more
core  

Mechanism and Application of High-efficiency Collector MY-1 for Lead-zinc Separation

open access: yesKuangchan zonghe liyong
[Objective]The main useful minerals in a mine (Guangxi) are jamesonite and marmatite. When using conventional collector, lime is needed to separate lead from zinc at high alkaline condition, and the selectivity of agent is poor in the presence of high ...
Xiong CHEN   +4 more
doaj   +1 more source

New orogenic type gold occurrences in the Uyanga ore knot (Central Mongolia)

open access: yesMongolian Geoscientist, 2018
The Uyanga ore knot district of the Khangay metallogenic zone are hosted by the lower-middle Devonian volcanogenic-sedimentary Erdenetsogt formation.
Ariunbileg Sodov   +6 more
doaj   +1 more source

High and dry: the persistence of diverse coastal marsh communities depends on available upland area and connection to surrounding waters

open access: yesRestoration Ecology, EarlyView.
Sea‐level‐rise and alterations to natural hydrology have contributed to coastal land loss. To combat coastal land loss and maintain the ecosystem services provided by marshes, marsh creation has been broadly implemented. Marsh creation projects can be performed in conjunction with the construction of elevated terrestrial ridges that seek to mimic ...
Erik Nati‐Johnson   +3 more
wiley   +1 more source

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