scholarly journals Early Paleozoic Adakitic Granitoids from the Xingshuping Gold Deposit of East Qinling, China: Petrogenesis and Tectonic Significance

Minerals ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 1032
Author(s):  
Pei Zan ◽  
Shouyu Chen ◽  
Jinduo Chen ◽  
Shengli Li
Keyword(s):  
Gold Deposit ◽  
Inductively Coupled Plasma ◽  
Volcanic Rocks ◽  
Major And Trace Elements ◽  
Biotite Granite ◽  
Early Paleozoic ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Monzonitic Granite ◽  
Plasma Mass Spectrometry

This study discussed the pertrological classification, geochronology, petrogenesis and tectonic evolution of early Paleozoic granites from the Xingshuping gold deposit in the East Qinling orogenic belt. In order to achieve this target, we carried out an integrated study of zircon U–Pb age, whole-rock major and trace elements, as well as Sr–Nd–Hf isotope compositions for the Xingshuping granites (part of the Wuduoshan pluton) from the Erlangping unit. Laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) zircon U–Pb dating constrains the emplacement age of the Xingshuping granites at 446.2 ± 1.2 Ma. The rocks at Xingshuping can be divided into two types: mainly biotite granite and monzonitic granite. The biotite granites are typical adakitic rocks, while the monzonitic granites show characteristics similar to normal arc volcanic rocks. The geochemical compositions reveal that they were derived from a clay-rich, plagioclase-rich and biotite-rich psammitic lower continental crust source, with contributions of mantle-derived magmas. The distinction is that the biotite granites were primarily derived from partial melting in a syn-collision extension setting, whereas the monzonitic granite went through a fractional crystallization process in an intraplate anorogenic setting.

scholarly journals Hydrogeochemistry and lead contamination of groundwater in the north part of Esfahan province, Iran

2018 ◽  
Vol 16 (4) ◽  
pp. 622-634 ◽  
Author(s):  
Kaveh Pazand ◽  
Davoud Khosravi ◽  
Mohammad Reza Ghaderi ◽  
Mohammad Reza Rezvanianzadeh
Keyword(s):  
Inductively Coupled Plasma ◽  
Arid Regions ◽  
Volcanic Rocks ◽  
Primary Source ◽  
Lead Contamination ◽  
Inductively Coupled ◽  
The North ◽  
Icp Ms ◽  
North Part ◽  
Plasma Mass Spectrometry

Abstract Geochemical and hydrogeochemical studies were conducted to assess the origin and geochemical mechanisms driving lead enrichment in groundwaters of semi-arid regions in Central Iran. In this study, 149 water samples were analyzed using inductively coupled plasma mass spectrometry (ICP-MS). Concentrations of Pb and As in about 68% and 27% of the samples, respectively, exceeded WHO guidelines. Analyzing the results of ICP-MS of parental rocks and aquifer sediments shows that unweathered volcanic rocks were the primary source for lead mobilizing to groundwaters.

Determination of major and trace elements in geological samples by laser ablation solution sampling-inductively coupled plasma mass spectrometry

2019 ◽  
Vol 34 (6) ◽  
pp. 1126-1134 ◽  
Author(s):  
Xiuhong Liao ◽  
Zhaochu Hu ◽  
Tao Luo ◽  
Wen Zhang ◽  
Yongsheng Liu ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Laser Ablation ◽  
Inductively Coupled Plasma ◽  
Matrix Effects ◽  
Major And Trace Elements ◽  
Geological Samples ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Water-related interferences and matrix effects in ICP-MS are dramatically reduced by using laser ablation solution sampling.

scholarly journals Composition of Garnet from the Xianghualing Skarn Sn Deposit, South China: Its Petrogenetic Significance and Exploration Potential

Minerals ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 456 ◽  
Author(s):  
Fan Yu ◽  
Qihai Shu ◽  
Xudong Niu ◽  
Kai Xing ◽  
Linlong Li ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Inductively Coupled Plasma ◽  
Major And Trace Elements ◽  
Inductively Coupled ◽  
Metallogenic Belt ◽  
Icp Ms ◽  
Heavy Rare Earth Elements ◽  
Plasma Mass Spectrometry ◽  
Southern Hunan

The Xianghualing skarn Sn deposit in the southwestern part of the southern Hunan Metallogenic Belt is a large Sn deposit in the Nanling area. In this paper, the garnet has been analyzed by laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS) to obtain the concentrations of the major and trace elements. The results reveal that the garnets from the Xianghualing deposit mainly belong to andradite-grossular (grandite) solid solution and are typically richer in Al than in Fe. They show enrichment in heavy rare earth elements (HREEs) and notably lower light rare earth elements (LREEs), and commonly negative Eu anomalies, indicative of a relatively reduced formation environment. The garnets have high Sn concentrations between 2313 ppm and 5766 ppm. It is also evident that there is a positive correlation between Sn and Fe, suggesting that Sn4+ substitutes into the garnets through substituting for Fe3+ in the octahedral position. Combined with previous studies, it can be recognized that the Sn concentrations of garnet in skarn Sn deposits are generally high, whereas the W concentrations are relatively low. This is just the opposite in garnets from skarn W deposits that typically have high W, but low Sn concentrations. In polymetallic skarn deposits with both economic Sn and W, the concentrations of both metals in garnets are relatively high, although varying greatly. Therefore, the Sn and W concentrations in garnets can be used to evaluate a skarn deposit’s potential to produce Sn and (or) W mineralization, which is helpful in exploration.

scholarly journals Selected ions and major- and trace elements as contaminants in coal-waste dump water from the Lower- and Upper Silesian Coal Basins (Poland)

2020 ◽  
Author(s):  
Lucyna Lewińska-Preis ◽  
Ewa Szram ◽  
Monika Fabiańska ◽  
Ádám Nádudvari ◽  
Magdalena Misz-Kennan ◽  
...  
Keyword(s):  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Major And Trace Elements ◽  
Water Soluble ◽  
Coal Waste ◽  
Thermal Activity ◽  
Inductively Coupled ◽  
Waste Dumps ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

Abstract Many temporary- and permanent reservoirs of water occur on or near coal-waste dumps in the Lower- and Upper Silesian Coal Basins (Poland). Little or nothing is known of the degree to which their water chemistry might reflect (a) reservoir type, i.e., whether permanent or temporary, (b) level of coal-waste thermal activity, i.e., whether inactive or self-heating or burnt-out or (c) region, i.e., whether the dumps are in Upper- or Lower Silesia. To provide some answers, concentrations of selected ions (NH4+, HCO3-, F-, Cl-, Br-, NO2-, NO3-, PO43-,SO42-) were determined by ion chromatography and of nineteen elements (Al, B, Ba, Ca, Cd, Cr, Cu, Fe, K, Li, Mg, Mn, Na, P, Pb, S, Si, Sr, Zn) by inductively coupled plasma mass spectrometry (ICP-MS). The data allow a number of the following observations. When permanent reservoirs are considered, there is a clear relationship between concentrations of ions and major- and trace elements and dump thermal activity. The highest concentrations occur where the thermal activity is high as inorganic components are transformed into more water-soluble forms. As dump thermal activity shows a regional pattern, it follows also that elemental- and ion concentrations in the dump waters show significant regional differences. In temporary reservoirs, concentrations of ions and major- and trace elements are much lower and any correlations between components less significant than in the permanent reservoirs; these reservoirs exist for too short a time for any balance between coal waste- and water components to be established.

scholarly journals Selected ions and major- and trace elements as contaminants in coal-waste dump water from the Lower- and Upper Silesian Coal Basins (Poland)

2020 ◽  
Author(s):  
Lucyna Lewińska-Preis ◽  
Ewa Szram ◽  
Monika Fabiańska ◽  
Ádám Nádudvari ◽  
Magdalena Misz-Kennan ◽  
...  
Keyword(s):  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Major And Trace Elements ◽  
Coal Waste ◽  
Thermal Activity ◽  
Inductively Coupled ◽  
Waste Dumps ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Reservoir Type

Abstract Many temporary- and permanent reservoirs of water occur on or in the immediate vicinity of coal-waste dumps in the Lower- and Upper Silesian Coal Basins (Poland). Little or nothing is known of the degree to which their water chemistry might reflect (a) reservoir type, i.e., whether permanent or temporary, (b) level of coal-waste thermal activity, i.e., whether inactive or self-heating or burnt-out or (c) region, i.e., whether the dumps lay in the Upper- or Lower Silesian basins. To provide some answers, concentrations of selected ions (NH4+, HCO3−, F−, Cl−, Br−, NO2−, NO3−, PO43−,SO42−) were determined by ion chromatography and of nineteen elements (Al, B, Ba, Ca, Cd, Cr, Cu, Fe, K, Li, Mg, Mn, Na, P, Pb, S, Si, Sr, Zn) by inductively coupled plasma mass spectrometry (ICP-MS). The data allow a number of observations. In temporary reservoirs, concentrations of ions and of major- and trace elements are relatively much lower and any correlations between components less significant; reservoirs exist for too short a time to allow any balance between coal waste- and water components to be established. A clear relationship does exist between concentrations of ions and of major- and trace elements and dump thermal activity. The highest concentrations occur where thermal activity is high and inorganic components are mobilized. Finally, a regional pattern of elemental- and ion concentrations in the dump waters reflects important regional differences in thermal activity.

Simultaneous 3-dimensional elemental imaging with LIBS and LA-ICP-MS

2014 ◽  
Vol 29 (7) ◽  
pp. 1292-1298 ◽  
Author(s):  
Jose R. Chirinos ◽  
Dayana D. Oropeza ◽  
Jhanis J. Gonzalez ◽  
Huaming Hou ◽  
Mark Morey ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
Major And Trace Elements ◽  
Laser Induced Breakdown Spectroscopy ◽  
3 Dimensional ◽  
Inductively Coupled ◽  
Breakdown Spectroscopy ◽  
Spatially Resolved ◽  
Icp Ms ◽  
Laser Induced Breakdown ◽  
Plasma Mass Spectrometry

Laser Induced Breakdown Spectroscopy (LIBS) and Laser Ablation Inductively Coupled Plasma-Mass Spectrometry (LA-ICP-MS) are used simultaneously for spatially resolved mapping of major and trace elements and isotopes within aBastnäsiterare earth ore sample.

scholarly journals Calcite U-Pb dating of altered ancient oceanic crust in the North Pamir, Central Asia

2021 ◽  
Author(s):  
Johannes Rembe ◽  
Renjie Zhou ◽  
Edward R. Sobel ◽  
Jonas Kley ◽  
Chen Jie ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
Early Paleozoic ◽  
Calcite Precipitation ◽  
Inductively Coupled ◽  
The North ◽  
Collision Zone ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Vesicular Basalt

Abstract. The North Pamir, part of the western syntax of the India-Asia collision zone, preserves remnants of a poorly investigated Paleozoic intra-oceanic subduction zone. To constrain the age of this ancient ocean floor, we analyzed calcite phases in vesicular basalt and basaltic volcanic breccia with U-Pb geochronology using laser-ablation inductively-coupled-plasma mass-spectrometry (LA-ICP-MS). Calcite dating yielded Mississippian ages, mostly overlapping each other within errors. REE + Y data reveal that the basaltic host rock of the calcite and oxidizing seawater are major sources of trace elements during calcite precipitation. U-Pb ages seem to be independent of REE + Y concentrations. Our results demonstrate the potential of calcite dating to constrain the age of ancient ocean floors and provide a test of the hypothesis that a continuous early Paleozoic Kunlun Terrane extended from northern Tibet into the North Pamir.

U–Pb Neoproterozoic–Ordovician protolith age constraints for high- to medium-pressure rocks thrust over low-grade metamorphic rocks in theIxcamilpa area, Acatlán Complex, southern Mexico

2011 ◽  
Vol 48 (1) ◽  
pp. 45-61 ◽  
Author(s):  
M. A. Ramos-Arias ◽  
J. D. Keppie
Keyword(s):  
High Pressure ◽  
Inductively Coupled Plasma ◽  
Volcanic Rocks ◽  
Low Grade ◽  
Southern Mexico ◽  
Western Margin ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Plasma Mass Spectrometry ◽  
Acatlan Complex

High-grade and high-pressure rocks in Acatlán Complex (southern Mexico) are inferred to have been emplaced either during the convergence and collision between Laurentia and Gondwana or during subduction on the western margin of Pangea. In the Ixcamilpa area, such rocks occur in a synformal nappe and are subdivided into (1) the Neoproterozoic–Ordovician Piaxtla Suite (metapsammite, meta-pelite, and amphibolite) that passes structurally upwards from blueschist through eclogite to amphibolite facies; intruded by (2) Cambro-Ordovician megacrystic granitoids; both of which were thrust westwards over (3) the Carboniferous Zumpango Unit consisting of clastic and meta-volcanic rocks. Laser ablation – inductively coupled plasma – mass spectrometry (LA–ICP–MS) U–Pb zircon geochronology yielded age population peaks at (i) 435–490 Ma, probably derived from Acatlán granitoids; (ii) 500–700 Ma, likely derived from the Yucatan Peninsula and Brasiliano orogens; (iii) 800–900 Ma, with provenance in the Goiás arc of eastern Amazonia; and (iv) 950–1300 Ma, sourced either from Oaxaquia, Amazonia, or Laurentia: the younger ca. 310–360 Ma ages are limited to the Zumpango Unit and likely have a local provenance. The overall similarity of the Piaxtla rocks in the Ixcamilpa area and those in the Piaxtla-Mimilulco median belt suggests that Ixcamilpa nappe roots in the median belt, which is interpreted as an extrusion zone within the Acatlán Complex. Since neither high-pressure belt represents a closed ocean, deposition of the Neoproterozoic–Ordovician rocks is inferred to have taken place on the southern margin of Rheic Ocean adjacent to Oaxaquia–Amazonia, whereas the Carboniferous rocks were deposited on the western margin of Pangea synchronous with extrusion of the high-pressure rocks.

LA-MC-ICP-MS U-Pb dating of low-U garnets reveals multiple episodes of skarn formation in the volcanic-hosted iron mineralization system, Awulale belt, Central Asia

2019 ◽  
Vol 132 (5-6) ◽  
pp. 1031-1045
Author(s):  
Shuang Yan ◽  
Renjie Zhou ◽  
He-Cai Niu ◽  
Yue-xing Feng ◽  
Ai Duc Nguyen ◽  
...  
Keyword(s):  
Central Asia ◽  
Inductively Coupled Plasma ◽  
Large Scale ◽  
Volcanic Rocks ◽  
Inductively Coupled ◽  
Icp Ms ◽  
Two Samples ◽  
Plasma Mass Spectrometry ◽  
Iron Deposits ◽  
Multiple Episodes

Abstract Volcanic-hosted iron deposits of the eastern Awulale metallogenetic belt in Central Asia possess a reserve of over 1.2 billion tons of iron ores and constitute one of the most important basements for high-grade iron resources in China. Skarns are widespread in these deposits and closely associated with iron mineralization. The ages of these skarns are unclear, and their genesis remains debated, preventing further investigation into their metallogenic processes. We focused on garnets in nine ore-bearing skarns from three large-scale iron deposits (Chagangnuoer, Dunde, and Beizhan) in the eastern Awulale belt. U-Pb dating was conducted on these garnets using our in-house reference material, the Taochong garnet (TC-13, Pb-Pb isochron age: 126.2 ± 2.3 Ma, initial 207Pb/206Pb ratio: 0.845 ± 0.022). Laser-ablation–multicollector–inductively coupled plasma–mass spectrometry (LA-MC-ICP-MS) was employed in the garnet U-Pb dating, and high-precision U-Pb ages (0.3%–1.6%) were obtained, highlighting the advantages of LA-MC-ICP-MS in dating low-U minerals. The garnet U-Pb ages of the nine skarn samples fall into three groups, i.e., 329.0 ± 5.1–326 ± 3.3 Ma (two samples), 316.3 ± 2.9–311.2 ± 2.4 Ma (six samples), and 295.6 ± 1.0 Ma (one sample), implying three episodes of skarn alteration in the volcanic-hosted iron mineralization system. The first and second episodes of skarns formed as a result of contact metasomatism between coeval volcanic rocks and limestone, and they have economically important iron mineralization. The third was likely caused by a local postcollision granitic intrusion, but its metallogenic potential deserves further assessment.

scholarly journals Selected ions and major and trace elements as contaminants in coal-waste dump water from the Lower and Upper Silesian Coal Basins (Poland)

2021 ◽  
Author(s):  
Lucyna Lewińska-Preis ◽  
Ewa Szram ◽  
Monika J. Fabiańska ◽  
Ádám Nádudvari ◽  
Magdalena Misz-Kennan ◽  
...  
Keyword(s):  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
Major And Trace Elements ◽  
Water Soluble ◽  
Coal Waste ◽  
Thermal Activity ◽  
Inductively Coupled ◽  
Waste Dumps ◽  
Icp Ms ◽  
Plasma Mass Spectrometry

AbstractMany temporary and permanent reservoirs of water occur on or near coal-waste dumps in the Lower- and Upper Silesian Coal Basins (Poland). Little or nothing is known of the degree to which their water chemistry might reflect (i) reservoir type, i.e., whether permanent or temporary, (ii) level of coal-waste thermal activity, i.e., whether inactive or self-heating or burnt-out or (iii) region, i.e., whether the dumps are in Upper- or Lower Silesia. To provide some answers, concentrations of selected ions (NH4+, HCO3−, F−, Cl−, Br−, NO2−, NO3−, PO43−,SO42−) were determined by ion chromatography and of nineteen elements (Al, B, Ba, Ca, Cd, Cr, Cu, Fe, K, Li, Mg, Mn, Na, P, Pb, S, Si, Sr, Zn) by inductively coupled plasma mass spectrometry (ICP-MS). The data allow a number of the following observations. When permanent reservoirs are considered, there is a clear relationship between concentrations of ions and major and trace elements and dump thermal activity. The highest concentrations occur where the thermal activity is high as inorganic components are transformed into more water-soluble forms. As dump thermal activity shows a regional pattern, it follows also that elemental and ion concentrations in the dump waters show significant regional differences. In temporary reservoirs, concentrations of ions and major and trace elements are much lower and any correlations between components less significant than in the permanent reservoirs; these reservoirs exist for too short a time for any balance between coal waste- and water components to be established.

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