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29 results for “Apatite”
Apatite and Zircon Helium Data from the Wallowa and Elkhorn Mountains
<p>Apatite and Zircon Helium thermochronometry data from the Wallowa and Bald Mountain Batholiths, Oregon, USA. Dataset accompanies the paper "Multiphase topographic and thermal histories of the Wallowa and Elkhorn Mountains, Blue Mountains Province, Oregon, USA" published in Tectonics.</p>
Fig. 1 in Palaeoecology of Late Triassic conodonts: Constraints from oxygen isotopes in biogenic apatite
Fig. 1. Reconstruction of the Western Tethys and position of the Lagonegro Basin (Southern Apennines, Italy) for the Carnian (Late Triassic), modified after Stampfli and Kozur (2006). White, landmass; dark grey, basins; light grey, rift zones; hazel grey, continent margins.
Fig. 2 in Palaeoecology of Late Triassic conodonts: Constraints from oxygen isotopes in biogenic apatite
Fig. 2. Oxygen isotope curves of conodont apatite from the Sasso di Castalda and Pignola 2 sections, Lagonegro Basin (Southern Apennines, Italy). Dark gray and light gray contours give, respectively, analytical reproducibility of 1 Ơ and 2 Ơ for δ18O. Radiometric age of 230.91 ± 0.33 Mya from Furin et al. (2006, 2007). Time scale after Brack et al. (2005).
McMurdo Dry Valleys Soil Apatite Grain Weathering Metrics from Taylor Valley, Antarctica
Mineral apatite is the ultimate source of the essential nutrient phosphorus to the soil ecosystem. In order to assess the biogeochemical weathering of apatite grains in the dry, basic soils of the McMurdo Dry Valleys, we collected nine surface soil samples from the Fryxell and Bonney Basins of Taylor Valley. After separating more than 50 individual soil apatite grains from each sample, we used scanning electron microscopy to quantify the morphology and surface etching of apatite grains to determine the degree of weathering. We developed three metrics to quantify the degree of weathering: aspect ratio, percent crystal faces, and a qualitative pitting index. This dataset contains the raw data from analyzing the morphology of more than 600 grains using the software ImageJ. Samples were collected during January 2013. The samples from the Bonney Basin (LB) were collected 21 Jan 2013, and the samples from the Fryxell Basin (LF) were collected 18 January 2013. Samples were processed and analyzed 2014-2016.
Supplementary Table 1-9 of the manuscript: Magmatic Cl-H2O contents, fluid extraction and porphyry fertility: Evidence from zircon and its apatite inclusions
<p><strong><span>Table DR1</span></strong><span> Major element composition of biotite from the three intrusions in the ZOF</span></p> <p><strong><span>Table DR2</span></strong><span> Laser Raman spectra and trace element compositions of zircon grains from the Cretaceous intrusions in the ZOF</span></p> <p><strong><span>Table DR3</span></strong><span> Major element composition of plagioclase grains from the Cretaceous intrusions in the ZOF</span></p> <p><strong><span>Table DR4</span></strong><span> Sr isotopic composition of the plagioclase from the Cretaceous intrusions in the ZOF</span></p> <p><strong><span>Table DR5</span></strong><span> Zircon Lu-Hf isotopic composition of the Sifang granodiorite, Luoboling granodiorite porphyry and Zhongliao granodiorite</span></p> <p><strong><span>Table DR6 </span></strong><span>Zircon water contents and O isotopic compositions by SIMS of the Cretaceous intrusions in the ZOF</span></p> <p><strong><span>Table DR7 </span></strong><span>Major and volatile element composition of the zircon-host apatite from the Cretaceous intrusions in the ZOF </span></p> <p><strong><span>Table DR8</span></strong><span> The top 20 best fitting runs</span></p> <p><strong><span>Table DR9</span></strong><span> Summarization of the salinity calculations</span></p>
Data from U and Th zonation in apatite observed by synchrotron X–ray fluorescence tomography and implications for the (U–Th)/He system Sousa et al 2024
<p>Data from </p> <p><span>U and Th zonation in apatite observed by synchrotron X–ray fluorescence tomography and implications for the (U–Th)/He system</span></p> <p><span>Sousa et al</span></p> <p><span>Geochronology</span></p>
Unraveling silicate liquid immiscibility and apatite saturation in the mesostasis pocket of mare basalt: Evidences from Chang'E-5 lunar samples
<p><strong>Figure S1 </strong>Back scatter electron (BSE) images of Chang’E-5 breccia 136GP (top) and 143 GP (bottom)</p> <p><strong>Figure S2</strong> Chemical composition of silicate minerals in CE-5 136GP and 143 GP breccias and comparison with CE-5 mare basalts. A) Quadrilateral diagram of pyroxene in the Chang’E-5 mare basalt. B) Ternary diagram of feldspar from the Chang’E-5 mare basalts. C) Chemical compositions of olivine. The gray background areas represent the composition range of silicate minerals in Chang'e-5 basalts reported by previous studies (Che et al., 2021; He et al., 2022; Hu et al., 2021; Jiang et al., 2022; Tian et al., 2021).</p> <p><strong>Figure S3</strong> Element mapping of one representative mesostasis fragment in CE-5 136GP. a)-j) indicate the abundance maps of Si, Al, Mg, Na, K, Ca, Fe, Mn, Ti, and P within this lithic clast. All of them are in the same scale and the scale bar could be found in J. On each element map, the red or yellow color represents the relative elevated abundance of one specific element; the blue or black indicate its low abundance. k) is the BSE image of this clast and the yellow box outlines the mapping area.</p> <p><strong>Figure S4</strong> Predicted value of P<sub>2</sub>O<sub>5</sub> concentration (wt%) required for phosphate saturation in the Si-rich melts. The calculation is based on the equation built by Tollar et al. (2006). a) and b) represents the function of SiO<sub>2</sub> and CaO concentrations (wt%) respectively. The melt temperature is fixed at 1010 °C. The black circles indicate the data of Si-rich portion within the CE-5 mesostasis fragments investigated in the present study. These plots indicate that apatite crystallized in some of the Si-rich melts.</p> <p><strong>Table S1 Representative mineral EPMA analyses of major compositions (wt%) in the CE-5 mesostasis fragments.</strong></p> <p><strong>Table S2 Representative Raman spectra of minerals in the CE-5 mesostasis fragments.</strong></p>
Dating strike-slip ductile shear through combined zircon-, titanite- and apatite U–Pb geochronology along the southern Tan-Lu Fault zone, East China
<p>This is the dataset for <em>"Dating strike-slip ductile shear through combined zircon-, titanite- and apatite U–Pb geochronology along the southern Tan-Lu Fault zone, East China"</em>. Including the EMPA and geochronology data.</p>
Apatite fission track data from debris from the basal ice of the Byrd ice core, central West Antarctica
<p>This dataset comprises of 10 apatite fission track ages. Apatite grains were picked out of the 75-150 micron size fraction of debris melted from two intervals of basal ice from the Byrd ice core. The Byrd ice core was drilled at 80<i><strong>°</strong></i> 0.1'S, 119<i><strong>°</strong></i> 31.0'W at Byrd Station, West Antarctica, in January 1968.</p>
Data from: Ontogenetic variability in crystallography and mosaicity of conodont apatite: Implications for microstructure, paleothermometry and geochemistry
<p>X-ray diffraction data from Silurian conodonts belonging to various developmental stages of the species <i>Dapsilodus obliquicostatus </i>demonstrate changes in crystallography and degree of nanocrystallite ordering (mosaicity) in both hyaline and albid crown tissue. The exclusive use of a single species in this study, combined with systematic testing of each element type at multiple locations, provided insight into microstructural and crystallographic differentiation between element position (S<sub>a</sub>, S<sub>b-c</sub>, M) as well as between juveniles and adults. A relative increase in the unit cell dimensions of the <i>a</i>-axis/<i>c</i>-axis ratio of nanocrystallites during growth was apparent in areas demonstrating single-crystal behavior but no such relationship was seen in dominantly polycrystalline areas. Systematic variations in mosaicity were identified, with mosaicity (as a proxy for disorder) increasing during growth, as well as along elements from tip to base. These results provide potential insight into the integrity of conodont apatite as a recorder of paleoseawater chemistry, as well as demonstrate the need to consider the influence of ontogeny and element position on the use of conodonts in paleothermometry and geochemical investigations. </p>
Apatite trace element data for genetic type classification
<p>Apatite trace element data for genetic type classification, including porphyry, skarn, orogenic Au, iron-oxide copper gold (IOCG), and iron-oxide apatite (IOA or Kiruna type).</p>
Data from: PMMA bone cement with L-Arginine/nano fish bone nanocomplex to generate apatite formation
<p>This study observed apatite growth in nano fish bone (NFB) processed from fish bone waste and used it in Polymethyl methacrylate (PMMA) bone cement. PMMA was synthesized using the emulsion polymerization method, and the content of the sodium dodecyl sulphate (SDS) surfactant was varied to control particle size and uniformity. Apatite growth is an approach for bone regeneration to optimize bone repair and restore bone function. Generally, this property is attributed to hydroxyapatite, which can be derived from fish bone waste. PSA characterization showed that the addition of SDS could reduce the particle size from 102.8 nm without SDS to 42.1 nm with 5 wt% SDS. SEM characterization revealed agglomeration due to the very small particle size at a 5 wt% SDS addition. The addition of NFB to PMMA produced bone cement with a 1.65 Ca:P content ratio and an average particle size of 757.5 nm. L-Arginine was also added to PMMA to increase the biocompatibility and antibiotic properties of the bone cement. Tensile strength tests were conducted on the bone cement samples. The BC-PMMA-1-NFB/L-Arg sample exhibited better tensile strength than commercial PMMA. The immersion test showed an increase in mass after seven days of immersion in the SBF solution, indicating the possibility of forming an apatite layer.</p>
Trochanteric Femur Fracture Operated With Dynamic Hip Screw System (DHS) Augmented With a Biphasic Apatite Sulphate Combined With Systemic or Local Bisphosphonate
ClinicalTrials.gov study NCT04498715. IPD Sharing: YES. Countries: 1. Publications: 1.
Data from: Ontogenetic variability in crystallography and mosaicity of conodont apatite: Implications for microstructure, paleothermometry and geochemistry
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Data from: PMMA bone cement with L-Arginine/nano fish bone nanocomplex to generate apatite formation
Open the record for dataset details and reuse information.
Stabilities of volatiles (H, F and C) in apatite at high temperatures
<p>The data supports our paper.</p>
Chapter 4 – Characterising the Gamburtsev Subglacial Mountains by detrital apatite, rutile, and titanite U-Pb dating and trace element analysis: How passive tectonics led to inception of the Antarctic Ice Sheet
Open the record for dataset details and reuse information.
Mobilities of volatiles (H, F and C) in apatite at high temperatures
<p>The data supports paper.</p>
The oxidation state of sulfur in apatite of Martian meteorite- Shergotty
<p>S-XANES data of Shergotty apatite.</p>
Data sharing of Trace element partitioning between apatite and silicate melts: Effects of major element composition, temperature, and oxygen fugacity, and implications for the volatile element budget of the lunar magma ocean
<p>This repository contains all data used in <strong>Ji and Dygert (2024)</strong>, along with two essential tools (Apatite_Kd_calculator.xlsx):</p> <p>1. A calculator for apatite trace element partition coefficients</p> <p>2. A Eu-in-apatite–plagioclase oxybarometer</p> <p><strong>Update (2025-07-15 version):</strong></p> <p>This version corrects a minor typo in the molecular weight of SiO₂ used in both tools. While the original error had a negligible effect on the calculated partition coefficients, this correction ensures full accuracy for future applications.</p>
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