Science topic
Laser Ablation-Inductively CoupledPlasma-Mass Spectroscopy (LA-ICP-MS) - Science topic
In Laser Ablation Inductively Coupled Plasma Mass Spectrometry the sample is directly analyzed by ablating with a pulsed laser beam. The created aerosols are transported into the core of inductively coupled argon plasma (ICP), which generates temperature of approximately 8000°C. The plasma in ICP-MS is used to generate ions that are then introduced to the mass analyzer. These ions are then separated and collected according to their mass to charge ratios. The constituents of an unknown sample can then be identified and measured. ICP-MS offers extremely high sensitivity to a wide range of elements.
Publications related to Laser Ablation-Inductively CoupledPlasma-Mass Spectroscopy (LA-ICP-MS) (10,000)
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Mineralogy and geochemistry o magnetite in the Zhdanov Ni-Cu-(PGE) deposit in the Pechenga ore eld, Russia: Implications or the ormation o magmatic sulde ores A B S T R A C T The mineralogy and chemical composition o magnetite and chromite series (simplied as magnetite) can provide valuable insights into the ormation processes o magmatic...
Western Anatolia (WA) hosts numerous I-and S-type plutons with variable compositions. This paper presents new comprehensive geology, petrography, bulk-rock and mineral chemistry, Sr-Nd isotope, zircon U-Pb, biotite and hornblende Ar/Ar and first apatite U-Th / He age data for seven plutons (Baklan, Evciler, Eybek, Ilıca-Ş amlı, Kozak, Uludag, Yenic...
The Jian forsterite jade, so named because of its enrichment in end-member forsterite, is a new type of jade found in Ji’an County (Jilin Province, Northeast China). Tourmaline is discovered in Jian forsterite jade deposits and is characterized by magnesium enrichment. In this study, three types of magnesium tourmaline were identified from the pegm...
Selenium and Te are two important critical metals, which are often produced as by-products in Au-Cu deposits related to magmatic–hydrothermal systems, such as porphyry and skarn deposits. The Jilongshan Au-Cu deposit is a typical skarn deposit located in the middle and lower parts of the Yangtze River metallogenic belt. Previous studies show that i...
赣北阳储岭钨矿区出露花岗闪长岩、二长花岗斑岩和花岗斑岩。花岗闪长岩与二长花岗斑岩形成于晚侏罗世，来自相同源区，后者比前者岩浆演化程度更高。钨矿化主要呈细脉浸染状分布于二长花岗斑岩中，花岗斑岩呈脉状切穿矿体。本文对阳储岭花岗斑岩开展了锆石U-Pb定年、岩石化学分析和Sr-Nd-Hf同位素研究，通过与前人发表数据对比，探讨了花岗斑岩与二长花岗斑岩、花岗闪长岩的成因差异，为揭示钨矿成因提供了新的约束。LA-ICP-MS锆石U-Pb定年显示，花岗斑岩形成于144.6±1.8 Ma，与花岗闪长岩、二长花岗斑岩形成年龄一致。花岗斑岩具有高硅、富钾和弱过铝质的特征，微量元素蛛网图显示明显的Ba、Nb、Sr、P和Ti亏损，稀土元素配分曲线呈右倾斜型，显示负Eu异常，指示长石、黑云母、磷灰石和钛铁氧化物等矿物...
We analyzed detrital and metamorphic zircon from three samples of
paragneisses and one sample of neossome exposures in north of Rondônia
state, Brazil. Samples were analyzed using laser ablation-inductively coupled
plasma-mass spectrometry (LA-ICP-MS) techniques at the Geochronology
Laboratory, Brasília University, Brazil.
Main populations of detr...
Multi-element EMP maps and analyses of major accessory phases and their possible alteration products from ultrapotassic rocks (durbachites), in combination with LA-ICP-MS analyses of hydrothermal U-mineralization, provided constraints on potential U source of vein-type U-deposits in the Moldanubian Zone of the Bohemian Massif. The extensive metal m...
Highly fractionated granites are widespread in the middle part of the northern margin of the North China Craton (MNNCC), and several are accompanied by rare metal mineralization. The Dongjin rare metal mineralized intrusion, which is representative of this region, is composed of fine-grained alkali-feldspar granite (FAG) and kali-feldspar granite (...
This paper presents petrography, X-ray electron probe energy-dispersive (EDS), laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), and Raman spectroscopy data to characterize the mineral associations and composition of apatite group minerals from anorthosites of the Kievey deposit, North platinum group-element (PGE) Reef, Fedor...
Outcrops of late Paleozoic magmatic rocks are common in the Southern Beishan Orogenic Belt (SBOB), Southern Central Asian Orogenic Belt (CAOB), which is a key object for the understanding of regional tectonism and defining the final closure time of the Paleo-Asian Ocean (PAO). We present zircon U-Pb chronology and whole-rock geochemistry data for l...
Sedimentary rocks exposed at Dob's Linn, Scotland, have significantly influenced our understanding of how life evolved over the Ordovician to Early Silurian. The current interpreted chronostratigraphic boundary between the Ordovician and Silurian periods is a Global Boundary Stratotype Section and Point (GSSP), calibrated to 443.8 ± 1.5 Ma (Hirnati...
Currently, Zambia is the second largest source of emeralds, after Colombia. In this study, emerald samples from the Zambian Kamakanga deposit were examined by UV-Vis-NIR, Miro-FTIR, Diamond ViewTM, and LA-ICP-MS. Representative UV-Vis-NIR spectra showed a distinct Fe3+ absorption peak, and the Fe-related absorption band was much stronger than that...
This paper discusses the results of an archaeometric analysis carried out on undecorated Late Chalcolithic ceramics from Valencina de la Concepción, which is one of the largest and most important Chalcolithic settlements in the southern Iberian Peninsula. The purpose of the study is to contribute to the debate on the socioeconomic organization and...
The global emergence of rare earth elements (REE) demands for green and high technology industries has led Malaysia to explore for their potential. The study was carried out in a hill near Kg. Bandar in Baling, Kedah, which is located at 5° 44' 37.3'' N and 100° 52' 53.89'' E. The hill is generally underlain by Triassic Kupang Granite, except for t...
The Jinying gold deposit is located in southern Jilin Province in northeast China and is representative of the large Early Cretaceous gold deposits in this area. To better understand ore genesis of this deposit, a multi-isotope integrated analysis of U–Pb–Rb–Sr–He–Ar–S has been carried out. Laser ablation inductively coupled plasma–mass spectrometr...
Silcrete is widely used for stone tool manufacture throughout various parts of the world and is sometimes heat-treated to improve flaking quality. Properly sourcing this raw material can provide insight into exchange networks and mobility patterns of early human populations, however, we only have a minor understanding of how heat treatment impacts...
Central Dronning Maud Land (cDML) is part of the late Mesoproterozoic Maud Belt in East Antarctica, which was metamorphosed and deformed during the Ediacaran–Cambrian Gondwana assembly. Here we study high-pressure (HP) mafic rocks in Gjelsvikfjella, cDML, which occur as lenses and pods transposed in highly strained, upper amphibolite-facies gneisse...
The Kizhnica-Hajvalia-Badovc ore field is located in central Kosovo and in the southern part of the Trepça Mineral Belt, which is part of the Serbo-Macedonian metallogenic province. The Serbo-Macedonian metallogenic province is known for numerous Pb–Zn–Ag deposits that have formed as a result of the late Oligocene to early Miocene post-collision ex...
Ommastrephid squids are migratory and economically important species in the Pacific Ocean. Pelagic squids have a short lifespan and are highly affected by climate change. Understanding the ontogenetic dispersal of squids under environmental fluctuations can ensure proper and scientific management of these species. Samples of neon flying squid (Omma...
The Bawang deposit, a newly discovered Fe-Zn-Sn deposit occurred in the paleokarst in the Youjiang Basin, South China, offers an excellent opportunity to understand the ore-forming process and genesis of this unique tin mineralization, thus enriching the tin mineralization theories. Mineralogy, X-ray photoelectron spectroscopy (XPS), and laser abla...
The metamorphism and geological significance of amphibolites in the Diebusige and Bayanwulashan Complexes of the eastern Alxa Block, North China Craton, were poorly understood until now. This study presents the results of petrology, laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) zircon U–Pb analysis, phase equilibrium model...
Trace elements and calcite fabrics in stalagmites are increasingly employed as indicators of past environmental conditions. The drivers of trace element concentrations and fabrics reflect a complex interplay of factors during crystal growth, and accurate interpretation of geochemical proxies requires a clear understanding of the incorporation of th...
The Palaeoproterozoic Transvaal Supergroup is located in the northern part of South Africa. The most characteristic feature of the supergroup is the precipitation of Banded Iron Formation (BIF). Hotazel’s BIFs, located in the upper part of the Postmasburg Unit in the Kalahari Manganese Field (KMF), are considered among the most important ones.
One...
Selecting a robust chronometer is crucial to determine the primary mineralization age of the deposits that have
witnessed multiple hydrothermal events. The Youjiang basin of South China hosts the world’s second-largest
Carlin-type gold province. However, the age of the Carlin-type gold mineralization remains highly debated,
partly due to the presen...
This paper presents petrography, EDS, LA-ICP-MS, and Raman spectroscopy data characterizing mineral associations and composition of apatite group minerals from anorthosites of the Kievey deposit, North PGE Reef, Fedorova-Pana Complex, Russia. The mineralized coarse-grained anorthosite belongs to the most common rock type of the main ore body and ho...
Zircon U-Pb dating was carried out on granitic rocks from plutons in the Taiheizan Complex in Akita Prefecture, NE Japan. Two granodiorites from the Main Intrusive Rocks yielded weighted mean ²⁰⁶Pb/²³⁸U dates of 103.4±1.0 Ma and 115.6±1.1 Ma (1SE). Three porphyrygranite from the Young Intrusive Rocks yielded weighted mean ²⁰⁶Pb/²³⁸U dates of 11.4±0...
Occurring after the early Palaeozoic collisional orogeny and continental deep subduction, late Palaeozoic tectonic magmatism in the northern Qaidam Tectonic Belt (NQTB) related to the Palaeo-Tethys Ocean has become a critical issue. We performed a detailed geochronological and geochemical study of Lenghu (LH) granitic rocks in the western NQTB to o...
Le massif cristallin du Morvan situé au NE du Massif Central français est constitué d'un socle granito-gneissique généré durant l'orogenèse Varisque. Les granitoïdes du Morvan restent assez peuétudiés et leur place dans l'évolution géodynamique de la chaîne serait intéressanteà définir, notamment pour reconstituer la vergence des subductions et leu...
Arsenopyrite and pyrite are important carriers of Au that is present in the form of microscopic and “invisible” gold. Such gold can be expected to be released upon the process of oxidation of these sulfides. In studied gold mineralization at Drenjak, related to the granitoids of the Oligocene-Miocene Kopaonik Ore District, the main arsenopyrite-pyr...
Due to the intensive mining activities of recent decades, a global decline in resources from conventional high-grade deposits has been observed. This decline and the growing need for critical raw materials (CRMs) for clean technologies have led to a gradual reconsideration of mining strategies and, hence, the development of an interest in so-called...
Nas últimas décadas, pouca atenção tem sido dada às feições pervasivas de migmatização e metamorfismo do embasamento TTG (tonalito-trondhjemito-granodiorito) do Terreno Sapucaia. Visando preencher uma lacuna existente no conhecimento sobre o papel destes processos para a evolução da Província Carajás, este trabalho descreve pela primeira vez o modo...
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The Yuhaixi Mo(Cu) deposit is a new discovery in the eastern section of the Dananhu-Tousuquan island arc, Eastern Tianshan. However, the genesis of the Yuhaixi Mo(Cu) deposit is still not fully understood. The Yuhaixi intrusion is composed of monzonitic granites, diorites, granites, and gabbro dikes, among which disseminated or veinlet Mo and Cu mi...
The Carpathian Mountains form the large collisional orocline stretching from Vienna, Austria to Bucharest, Romania. The Inner Western Carpathians include the High Tatra mountains, which feature the highest elevation peaks. Here we studied the exhumation history of an area east of Gerlachovský štít, the topographically highest point of the High Tatr...
The volcanic rocks of the Chon Aike Silicic Large Igneous Province (CASP) are recognized as magmas dominantly produced
by crustal anatexis. Investigating the zircon of the CASP provides an opportunity to gain further insight into geochemical
and isotopic differences of the potential magmatic sources (i.e., crust versus mantle), to identify crustal...
Strontium isotope ratios (87Sr/86Sr) of incrementally grown tissues have been widely used to study movement ecology and migration of both extant and extinct animals. However, the timescale of 87Sr/86Sr incorporation from the environment into tissue and how it may influence data interpretation are still poorly understood. Using the relocation of a z...
Приведены первые систематические результаты U-Pb LA-ICP-MS датирования зерен обломочного циркона из 12 проб, представляющих разные стратиграфические уровни пяти разрезов пород пограничного пермско-триасового возраста, расположенных в пределах восточного борта Московской синеклизы, – Жуков овраг, Асташиха, Недуброво, Балебиха и Клыково. Показано, чт...
We present the first systematic results of U-Pb LA-ICP-MS dating of detrital zircons from 12 samples representing different stratigraphic levels of 5 sections of the Permian-Triassic rocks, located within the eastern part of the Moscow basin (syneclise) – Zhukov ravine, Astashikha, Nedubrovo, Balebikha and Klykovo. It is shown that the accumulation...
The Middle Permian Maokou Formation in the Sichuan Basin has huge resources and is an important target for natural gas exploration. In recent years, significant exploration breakthroughs have been made in the dolomite field of member Mao-2 in central Sichuan, and the gas production of several wells has exceeded 1 × 106 m3/d, indicating promising pr...
GEOLOGICAL RESEARCH REPORT COLLECTION MYANMAR UPDATE 01 JULY 2023
Titanite Spectroscopy and In Situ LA-ICP-MS U–Pb Geochronology of Mogok, Myanmar
July 2022Crystals 12(8):1050
DOI: 10.3390/cryst12081050
LicenseCC BY 4.0
Jialu GuBo XuBo XuShu LiYi ZhaoYi Zhao
Oriental freshwater mussels arose in East Gondwana and arrived to Asia on the Indian Plate...
This article presents data on the composition of biotite from igneous rocks of the Shakhtama complex, which are associated with various types of mineralization in Eastern Transbaikalia: Au-Cu-Fe-skarn, skarn-porphyry, Mo-porphyry, rare-metal–greisen, Au-polymetallic and Au-Bi. The major element and halogen contents were determined by EPMA. The cont...
![Fig. 3. Chondrite-normalized REE spectra [Sun, McDonough, 1989] (a) and...](profile/Alexey-Elbaev/publication/374740605/figure/fig1/AS:11431281198677657@1697420129274/Chondrite-normalized-REE-spectra-Sun-McDonough-1989-a-and-multi-element-diagram_Q320.jpg)
This paper presents new data on the composition, age, and formation conditions of granitoids from the Tamir molybdenum ore occurrence. The object of study is located on the area of the Tamir volcano-tectonic structure and within the Chikoy-Ingoda structural-mineralogical zone of Western Transbaikalia. In terms of mineralogy, petro- and geochemical...
The formation of Ikaria island is closely associated with the exhumation of metamorphic core complexes at the Aegean back-arc, consisting mainly of metamorphic rocks corresponding to the lower unit of the Attic-Cycladic massif, migmatites and granitic intrusions of I and S types. The lower unit is metamorphosed under greenschist to upper amphibolit...
Mica exhibits a relatively high Rb/Sr ratio and possesses a closure temperature for the Rb-Sr isotope system that is higher than the ore-forming temperature range of low- to medium-temperature deposits. Consequently, utilizing the laser ablation (LA) technique for in situ Rb-Sr dating in mica constitutes a significant methodology for resolving the...
New aquamarine deposits have been found around the world in recent years, and how to compare and distinguish aquamarines of different origin has become a significant problem. Aquamarines from Koktokay, Minas Gerais, and Namaqualand were collected for standard gemology tests, spectroscopy, and chemical analysis in this paper. The spectroscopy experi...
The Qinling Shan is located between the North China Craton and the South China Block. Not only is investigating the exhumation process of the Qinling Shan beneficial for comprehending the tectonic collision history of mainland China but also for enhancing our understanding of the development of the Yellow and Yangtze Rivers. Previous studies have p...
The Palaeoproterozoic Transvaal Supergroup is located in the northern part of South Africa. The most characteristic feature of the supergroup is the precipitation of Banded Iron Formation (BIF). Hotazel’s BIFs, located in the upper part of the Postmasburg Unit in the Kalahari Manganese Field (KMF), are considered among the most important ones.
One...
Immuno-mass spectrometry imaging uses lanthanide-conjugated antibodies to spatially quantify biomolecules via laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). The multi-element capabilities allow for highly multiplexed analyses that may include both conjugated antibodies and endogenous metals to reveal relationships between...
METODOLOGIA A caracterização petrográfica e geoquímica dos minerais-minério associados ao ouro foi realizada com microscopia sob luz refletida e Microscópio Eletrônico de Varredura (MEV) acoplado com Espectrômetro de Energia Dispersiva (EDS) e Detector de Elétrons Secundários (BSE) no Laboratório de Micropaleontologia Aplicada (LMA) da UFPE. Para a...
The color-influencing factors and spectroscopy of 22 green elbaite samples were investigated using X-Rite SP62 spectrophotometry, ultraviolet–visible (UV–Vis) spectroscopy, laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS), and infrared spectroscopy. The chromogenic components iron and manganese were found in the green elbaite...
RESUMO: O depósito aurífero São Francisco, localizado no município de Currais Novos (RN), é do tipo ouro orogênico que consiste de veios de quartzo auríferos encaixados em mica xistos neoproterozoicos do Grupo. Este depósito está na Faixa Seridó, inserida na Província Borborema, que corresponde a um cinturão de cisalhamento transcorrente e dobramen...
The Late Carboniferous to Early Permian is a critical period of the Chinese Tianshan, witnessing the tectonic transition from subduction to post-collisional extension during the final amalgamation of the Central Asian Orogenic Belt (CAOB). The late Carboniferous Mozbaysay mafic–ultramafic complex in the Qijiaojing–Balikun area, eastern North Tiansh...
Strontium isotope ratios ( ⁸⁷ Sr/ ⁸⁶ Sr) of incrementally grown tissues have been widely used to study movement ecology and migration of animals. However, the time scale of ⁸⁷ Sr/ ⁸⁶ Sr incorporation from the environment into tissue and how it may influence data interpretation are still poorly understood. Using the relocation of a zoo elephant ( Lo...
This study utilizes speleothem trace elements as climate proxies to reconstruct hydroclimate variability over approximately 350 years in the Southern Cook Islands. Stalagmites Pu17 and Pu4 from Pouatea cave were analyzed using high-resolution LA-ICP-MS for trace elements (Mg, Na, Sr, P, U, Y). By monitoring cave dripwater and conducting regression...
In this study, we present the results of the analysis of Late Bronze Age (LBA) vitreous materials from three
cemeteries on the island of Kefalonia, Greece (Mazarakata, Metaxata, and Kokkolata-Menegata). A multianalytical
approach (EPMA, LA-ICP-MS, MC-ICP-MS [Sr-Nd]) was used to determine the composition and
provenance of a group of 14 glass beads,...
The Dashuigou deposit, located in the transitional zone between the Yangtze craton to the east and the Songpan-Ganze orogen to the west, is the world’s only known deposit where tellurium and bismuth are exploited as primary products. The Te-Bi orebodies mainly occur as the dolomite-tetradymite and Te-bearing pyrrhotite veins in Triassic low-grade m...
Kagem emerald mine in Zambia is deemed the largest open-pit emerald mine in the world, with extremely high economic value and a large market share. To meet the market demand for tracing the origin of emeralds, 30 emeralds from the region were tested, and some discoveries were made and compared to previous studies. This study provides a full set of...
The results of U–Th–Pb (LA-ICP-MS) geochronological studies of detrital zircon and Sm–Nd isotopic studies of metaterrigenous rocks of the Udokan Complex of the Nizhnekhani graben-syncline in the western part of the Aldan Shield are discussed. On the basis of the data obtained, it was found that the accumulation of terrigenous deposits of the Nizhne...
The Paleoproterozoic tectonic evolution of the southwestern Yangtze Block has been ambiguous due to the scarce preservation of geological records, confusing the history of the entire Yangtze Block in the Nuna supercontinent. We here report an integrated study involving petrology, whole-rock geochemistry, zircon U-Pb geochronology and Hf-Nd isotopes...
Deciphering the localisation of solid and dissolved impurities on the micron-scale in glacial ice remains a challenge, but is critical to understand the integrity of ice core records and internal deformation. Here we report on the state-of-the-art in microstructural impurity research by highlighting recent progress in bringing together cryo-Raman s...
Toxic heavy metals have been the focus of many investigations into chronic kidney disease of unknown aetiology (CKDu) within Sri Lanka. It has been hypothesised that exposure to nephrotoxic arsenic, cadmium and lead could play a role in the development of CKDu, and these metals have previously been found in unsafe concentrations in Sri Lankan rice....
A rapid and environmentally friendly synthesis of thermodynamically stable silica nanoparticles (SiO2-NPs) from heating via microwave irradiation (MW) compared to conductive heating is presented, as well as their evaluations in a soy plant culture. The parameters of time and microwave power were evaluated for the optimization of the heating program...
In the last century, a blue–green colored gemstone known as Larimar with a special sea-wave pattern was discovered in the Dominican Republic. Larimar is composed of the mineral pectolite, which has a chemical composition of NaCa2Si3O8(OH) and is usually white in color. Cu2+ has always been considered to be the primary genesis of the blue color show...
The problem of the beginning of iron production in the Late Bronze Age of the Ural-Kazakhstan region is dis-cussed. For this, 13 iron-bearing artefacts from nine settlements that functioned in the 2nd mil. BC were studied using the SEM-EDS and LA-ICP-MS methods: metal objects, metallurgical slags, and a bimetallic droplet. Most of the studied artef...
In-situ Rb–Sr geochronology using LA-ICP-MS/MS technology allows rapid dating of K-rich minerals such as micas (e.g. biotite, muscovite, phlogopite) and K-feldspar. While many studies have demonstrated the ability of the method, analytical protocols vary significantly and to date no studies have provided an in-depth comparison and synthesis in term...
Porphyry W-Mo deposits are rare occurrences in the Earth crust and Ochtiná-Rochovce is the only one of its kind in the Western Carpathians. Lithological, mineralogical and veinlet descriptions, complemented by LA-ICP-MS trace element analysis and S isotope measurements of sulphide separates are indicative for a shift from reduced to oxidized condit...
In the process of in situ zircon U–Pb dating, it is an effective means to overcome the matrix effect by using a matrix-matched external reference material. However, the limited number of available zircon reference materials still makes it difficult to meet the research needs. In this paper, we performed a preliminary analysis of the gemological cha...
The Skouries deposit is a platinum-group element enriched Cu-Au porphyry system in NE Greece. The monzonite-syenite intrusions host a porphyry stockwork consisting of A-and B-type veins associated with potassic alteration, which is partly overprinted by C-type and D-type veins and related chlorite-sericite to sericitic alteration. The Cu-Au mineral...
The compositional zoning of the major divalent cations in metamorphic garnet is a useful tool in reconstructing the pres- sure–temperature path. However, trace elements can provide a better-preserved record of petrogenetic evolution due to their strong affinity in garnet and slow diffusion rates. In this study, three high-pressure micaschist sample...
In the last 25 years a conspicuous amount of plane glass – windowpane fragments – has surfaced on archaeological sites from the Viking Age. These finds have not received scholarly attention as they are not recognised as a genuine prehistoric (i.e. pre-1050 Scandinavia) occurrence. This paper aims to investigate a select group of archaeological loca...
