Supplemental Material: Testing models of Laramide orogenic initiation by investigation of Late Cretaceous magmatic-tectonic evolution of the central Mojave sector of the California arc

National Park ◽

Granitic Rocks ◽

Trace Element Geochemistry ◽

Element Geochemistry ◽

Inductively Coupled ◽

Joshua Tree National Park ◽

Icp Ms ◽

Plasma Mass Spectrometry ◽

Shrimp Zircon

<div>Table S1: SHRIMP zircon U-Pb geochronology data for six samples from the Cadiz Valley batholith. Table S2: SHRIMP zircon U-Pb geochronology data for six samples from the Federal 2-26 Cajon Pass drill core. Table S3: Whole-rock major- and trace-element geochemistry of granitic rocks from Joshua Tree National Park and the Cadiz Valley batholith measured by X-ray fluorescence (XRF) and inductively coupled plasma–mass spectrometry (ICP-MS). Table S4: Rb/Sr and Sm/Nd isotope data from the Joshua Tree National Park and Cadiz Valley batholith. Table S5: Locations, data, and references used to generate histograms in Figure 5.<br></div>

Trace-element geochemistry of molybdenite from porphyry Cu deposits of the Birgilda-Tomino ore cluster (South Urals, Russia)

Mineralogical Magazine ◽

10.1180/minmag.2017.081.106 ◽

2018 ◽

Vol 82 (S1) ◽

pp. S281-S306 ◽

Cited By ~ 3

Author(s):

Olga Y. Plotinskaya ◽

Vera D. Abramova ◽

Elena O. Groznova ◽

Svetlana G. Tessalina ◽

Reimar Seltmann ◽

...

Keyword(s):

Trace Element ◽

Porphyry Copper ◽

Mass Spectrometry Data ◽

South Urals ◽

Trace Element Geochemistry ◽

Porphyry Copper Deposits ◽

Element Geochemistry ◽

Inductively Coupled ◽

ABSTRACTMineralogical, electron microprobe analysis and laser ablation-inductively coupled plasma-mass spectrometry data from molybdenite within two porphyry copper deposits (Kalinovskoe and Birgilda) of the Birgilda-Tomino ore cluster (South Urals) are presented.† The results provide evidence that molybdenites from these two sites have similar trace-element chemistry. Most trace elements (Si, Fe, Co, Cu, Zn, Ag, Sb, Te, Pb, Bi, Au, As and Se) form mineral inclusions within molybdenite. The Re contents in molybdenite vary from 8.7 ppm to 1.13 wt.%. The Re distribution within single molybdenite flakes is always extremely heterogeneous. It is argued that a temperature decrease favours the formation of Re-rich molybdenite. The high Re content of molybdenite observed points to a mantle-derived source.

Major and Trace Element Geochemistry of Dayakou Vanadium-Dominant Emerald from Malipo (Yunnan, China): Genetic Model and Geographic Origin Determination

Minerals ◽

10.3390/min9120777 ◽

2019 ◽

Vol 9 (12) ◽

pp. 777

Author(s):

Yuyu Zheng ◽

Xiaoyan Yu ◽

Hongshu Guo

Keyword(s):

Trace Element ◽

Genetic Model ◽

Early Stage ◽

Geographic Origin ◽

Trace Element Geochemistry ◽

Element Geochemistry ◽

Inductively Coupled ◽

Two Generations ◽

Emerald from the deposit at Dayakou is classified as a vanadium-dominant emerald together with Lened, Muzo, Mohmand, and Eidsvoll emeralds. Although previous studies defined these V-dominant emeralds and traced the genesis of the Dayakou deposit, there has not been any systematic comparison or discrimination on V-dominant emeralds from these deposits. The origin of the parental fluid and the crystallization process of the Dayakou emerald remain controversial. In this study, both major and trace element signatures of 34 V-dominant samples from Dayakou are analyzed through electron microprobe analysis (EMPA) and laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). Dayakou emeralds are characterized by high ratios of V/Cr and the enrichment of Li, Cs, W, Sn, and As. These geochemical fingerprints indicate a parental fluid of an Early Cretaceous early-stage granitic fluid associated with Laojunshan granite. The considerable concentration variation of Rb, Cs, Ga and the presence of V-rich oxy-schorl-dravite inclusions in a color zoned sample suggest two generations of emerald precipitation. Thus, a more detailed idealized mineralization model for the Dayakou deposit is proposed. A series of plots, such as Rb vs. Cs, V vs. V/Cr, LILE vs. CTE, and Li vs. Sc, are constructed to discriminate the provenance of V-dominant emeralds.

Quantification of hepatic liver iron overload with laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS)

10.1055/s-0038-1677110 ◽

2019 ◽

Author(s):

R Weiskirchen ◽

P Kim ◽

S Weiskirchen ◽

R Uerlings ◽

A Kueppers ◽

...

Keyword(s):

Mass Spectrometry ◽

Laser Ablation ◽

Iron Overload ◽

Liver Iron ◽

Inductively Coupled ◽

Icp Ms ◽

Liver Iron Overload ◽

Single Particle Inductively Coupled Plasma Mass Spectrometry: Investigating Nonlinear Response Observed in Pulse Counting Mode and Extending the Linear Dynamic Range by Compensating for Dead Time Related Count Losses on a Microsecond Timescale

10.26434/chemrxiv.9911627 ◽

2019 ◽

Author(s):

Ingo Strenge ◽

Carsten Engelhard

Keyword(s):

Mass Spectrometry ◽

Nonlinear Response ◽

Dynamic Range ◽

Dead Time ◽

Inorganic Nanoparticles ◽

Linear Dynamic Range ◽

Inductively Coupled ◽

Icp Ms ◽

<p>The article demonstrates the importance of using a suitable approach to compensate for dead time relate count losses (a certain measurement artefact) whenever short, but potentially strong transient signals are to be analysed using inductively coupled plasma mass spectrometry (ICP-MS). Findings strongly support the theory that inadequate time resolution, and therefore insufficient compensation for these count losses, is one of the main reasons for size underestimation observed when analysing inorganic nanoparticles using ICP-MS, a topic still controversially discussed.</p>