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  1. Article ; Online: Hydrothermal enrichment of lithium in intracaldera illite-bearing claystones.

    Benson, Thomas R / Coble, Matthew A / Dilles, John H

    Science advances

    2023  Volume 9, Issue 35, Page(s) eadh8183

    Abstract: Developing a sustainable supply chain for the global proliferation of lithium ion batteries in electric vehicles and grid storage necessitates the extraction of lithium resources that minimize local environmental impacts. Volcano sedimentary lithium ... ...

    Abstract Developing a sustainable supply chain for the global proliferation of lithium ion batteries in electric vehicles and grid storage necessitates the extraction of lithium resources that minimize local environmental impacts. Volcano sedimentary lithium resources have the potential to meet this requirement, as they tend to be shallow, high-tonnage deposits with low waste:ore strip ratios. Illite-bearing Miocene lacustrine sediments within the southern portion of McDermitt caldera (USA) at Thacker Pass contain extremely high lithium grades (up to ~1 weight % of Li), more than double the whole-rock concentration of lithium in smectite-rich claystones in the caldera and other known claystone lithium resources globally (<0.4 weight % of Li). Illite concentrations measured in situ range from ~1.3 to 2.4 weight % of Li within fluorine-rich illitic claystones. The unique lithium enrichment of illite at Thacker Pass resulted from secondary lithium- and fluorine-bearing hydrothermal alteration of primary neoformed smectite-bearing sediments, a phenomenon not previously identified.
    Language English
    Publishing date 2023-08-30
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2810933-8
    ISSN 2375-2548 ; 2375-2548
    ISSN (online) 2375-2548
    ISSN 2375-2548
    DOI 10.1126/sciadv.adh8183
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: TNFα induced by DNA-sensing in macrophage compromises retinal pigment epithelial (RPE) barrier function.

    Twarog, Michael / Schustak, Joshua / Xu, YongYao / Coble, Matthew / Dolan, Katie / Esterberg, Robert / Huang, Qian / Saint-Geniez, Magali / Bao, Yi

    Scientific reports

    2023  Volume 13, Issue 1, Page(s) 14451

    Abstract: Increasing evidence suggests that chronic inflammation plays an important role in the pathogenesis of age-related macular degeneration (AMD); however, the precise pathogenic stressors and sensors, and their impact on disease progression remain unclear. ... ...

    Abstract Increasing evidence suggests that chronic inflammation plays an important role in the pathogenesis of age-related macular degeneration (AMD); however, the precise pathogenic stressors and sensors, and their impact on disease progression remain unclear. Several studies have demonstrated that type I interferon (IFN) response is activated in the retinal pigment epithelium (RPE) of AMD patients. Previously, we demonstrated that human RPE cells can initiate RNA-mediated type I IFN responses through RIG-I, yet are unable to directly sense and respond to DNA. In this study, we utilized a co-culture system combining primary human macrophage and iPS-derived RPE to study how each cell type responds to nucleic acids challenges and their effect on RPE barrier function in a homotypic and heterotypic manner. We find that DNA-induced macrophage activation induces an IFN response in the RPE, and compromises RPE barrier function via tight-junction remodeling. Investigation of the secreted cytokines responsible for RPE dysfunction following DNA-induced macrophages activation indicates that neutralization of macrophage-secreted TNFα, but not IFNβ, is sufficient to rescue RPE morphology and barrier function. Our data reveals a novel mechanism of intercellular communication by which DNA induces RPE dysfunction via macrophage-secreted TNFa, highlighting the complexity and potential pathological relevance of RPE and macrophage interactions.
    MeSH term(s) Humans ; Tumor Necrosis Factor-alpha ; DNA ; Nucleic Acids ; Cytokines ; Interferon Type I ; Macrophages ; Macular Degeneration
    Chemical Substances Tumor Necrosis Factor-alpha ; DNA (9007-49-2) ; Nucleic Acids ; Cytokines ; Interferon Type I
    Language English
    Publishing date 2023-09-02
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-023-41610-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Petrogenesis and Geodynamic Evolution in the Northern Westfjords, Iceland, Elucidated by Iceland's Oldest Silicic Rocks

    Banik, Tenley J. / Coble, Matthew A. / Miller, Calvin F. / Fisher, Christopher M. / Jordan, Brennan T. / Vervoort, Jeffrey D. / Carley, Tamara L.

    Journal of Geophysical Research: Solid Earth. 2023 June, v. 128, no. 6 p.e2022JB026265-

    2023  

    Abstract: Iceland's oldest silicic rocks provide unique insight into the island's early crustal evolution. We present new zircon U‐Pb ages bolstered with zircon trace element and isotopic compositions, and whole rock Nd, Hf, and Pb isotope compositions, from three ...

    Abstract Iceland's oldest silicic rocks provide unique insight into the island's early crustal evolution. We present new zircon U‐Pb ages bolstered with zircon trace element and isotopic compositions, and whole rock Nd, Hf, and Pb isotope compositions, from three silicic magmatic centers—Hrafnsfjörður, Árnes, and Kaldalón—to understand the petrogenesis of large silicic volcanic centers in the northern Westfjords, Iceland. Our data confirm Hrafnsfjörður as the oldest known central volcano in Iceland (∼14 Ma) and establish an older age for Árnes (∼13 Ma) than previously estimated. We also report the first U‐Pb zircon dates from Kaldalón (∼13.5 Ma). Zircon oxygen isotope compositions range from δ¹⁸O∼+2 to +4‰ and indicate involvement of a low‐¹⁸O component in their source magmas. Hrafnsfjörður zircon Hf (mean sample εHf ∼ +15.3–16.0) and whole rock Hf and Nd (εHf = +14.5 to +15; εNd = +7.9 to +8.1) isotopic compositions are more radiogenic than those from Árnes (zircon sample εHf ∼ +11.8–13; whole rock εHf = +12.8 to +15.1; εNd = +7.3 to +7.7), but Hrafnsfjörður whole rock Pb isotope compositions (²⁰⁸/²⁰⁴Pb = 37.95–37.96; ²⁰⁶/²⁰⁴Pb = 18.33–18.35) are less radiogenic than those from Árnes (²⁰⁸/²⁰⁴Pb = 38.34–38.48; ²⁰⁶/²⁰⁴Pb = 18.64–18.78). Kaldalón has zircon Hf isotope compositions of εHf∼+14.8 and 15.5 (sample means). These age and isotopic differences suggest that interaction of rift and plume, and thus the geodynamic evolution of the Westfjords, is complex. Isotopic compositions of Hrafnsfjörður and Árnes support involvement of an enriched mantle (EM)‐like mantle component associated with a pulsing plume that resulted in variable spreading rates and magma fluxes and highlight the heterogeneity of the Icelandic mantle.
    Keywords evolution ; geophysics ; oxygen isotopes ; research ; trace elements ; zircon ; Iceland
    Language English
    Dates of publication 2023-06
    Publishing place John Wiley & Sons, Ltd
    Document type Article ; Online
    Note JOURNAL ARTICLE
    ISSN 2169-9313
    DOI 10.1029/2022JB026265
    Database NAL-Catalogue (AGRICOLA)

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  4. Article: Repeated Rhyolite Eruption From Heterogeneous Hot Zones Embedded Within a Cool, Shallow Magma Reservoir

    Andersen, Nathan L. / Singer, Brad S. / Coble, Matthew A.

    Journal of geophysical research. 2019 Mar., v. 124, no. 3

    2019  

    Abstract: Despite the hazard posed by explosive silicic eruptions, the magma storage conditions and dynamics that precede these events remain controversial. The Laguna del Maule volcanic field, central Chile, is an exceptional example of postglacial (younger than ... ...

    Abstract Despite the hazard posed by explosive silicic eruptions, the magma storage conditions and dynamics that precede these events remain controversial. The Laguna del Maule volcanic field, central Chile, is an exceptional example of postglacial (younger than ca. 20,000 years) rhyolite volcanism and sustained unrest driven by a large, shallow, active silicic magma system. New zircon petrochronologic data reveal that compositionally distinct domains developed concurrently within the Laguna del Maule magma reservoir, which produced two episodes of concentrated rhyolitic eruptions at 23–19 and 8–2 ka. Zircon crystallization ages record 160 kyr of magma emplacement resulting in a several hundreds of cubic kilometers reservoir that has been imaged geophysically. The average magma emplacement rate inferred from the zircon geochronology and tomographically defined magma volume is consistent with those required by thermal models to maintain a shallow silicic system. Ti‐in‐zircon temperatures of crystal cores and rims and hiatuses in crystal growth indicates most of this volume persisted in a near‐solidus state. However, consistent patterns of trace element zoning in crystal interiors and crystallization rates derived from a model of diffusion‐limited zircon growth suggest the erupted rhyolite magma batches originated from long‐lived hot zones of extractable mush embedded within the larger, cool reservoir of rigid mush. These contrasting, coeval magma storage conditions obviate a simple hot versus cold storage dichotomy for large silicic magma systems.
    Keywords cold storage ; crystallization ; geochronology ; geophysics ; models ; research ; trace elements ; volcanic activity ; zircon ; Chile
    Language English
    Dates of publication 2019-03
    Size p. 2582-2600.
    Publishing place John Wiley & Sons, Ltd
    Document type Article
    Note JOURNAL ARTICLE
    ISSN 2169-9313
    DOI 10.1029/2018JB016418
    Database NAL-Catalogue (AGRICOLA)

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  5. Article ; Online: Lithium enrichment in intracontinental rhyolite magmas leads to Li deposits in caldera basins.

    Benson, Thomas R / Coble, Matthew A / Rytuba, James J / Mahood, Gail A

    Nature communications

    2017  Volume 8, Issue 1, Page(s) 270

    Abstract: The omnipresence of lithium-ion batteries in mobile electronics, and hybrid and electric vehicles necessitates discovery of new lithium resources to meet rising demand and to diversify the global lithium supply chain. Here we demonstrate that lake ... ...

    Abstract The omnipresence of lithium-ion batteries in mobile electronics, and hybrid and electric vehicles necessitates discovery of new lithium resources to meet rising demand and to diversify the global lithium supply chain. Here we demonstrate that lake sediments preserved within intracontinental rhyolitic calderas formed on eruption and weathering of lithium-enriched magmas have the potential to host large lithium clay deposits. We compare lithium concentrations of magmas formed in a variety of tectonic settings using in situ trace-element measurements of quartz-hosted melt inclusions to demonstrate that moderate to extreme lithium enrichment occurs in magmas that incorporate felsic continental crust. Cenozoic calderas in western North America and in other intracontinental settings that generated such magmas are promising new targets for lithium exploration because lithium leached from the eruptive products by meteoric and hydrothermal fluids becomes concentrated in clays within caldera lake sediments to potentially economically extractable levels.Lithium is increasingly being utilized for modern technology in the form of lithium-ion batteries. Here, using in situ measurements of quartz-hosted melt inclusions, the authors demonstrate that preserved lake sediments within rhyolitic calderas have the potential to host large lithium-rich clay deposits.
    Language English
    Publishing date 2017-08-16
    Publishing country England
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ISSN 2041-1723
    ISSN (online) 2041-1723
    DOI 10.1038/s41467-017-00234-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  6. Article: Calibration of Nu-Instruments Noblesse multicollector mass spectrometers for argon isotopic measurements using a newly developed reference gas

    Coble, Matthew A / Grove, Marty / Calvert, Andrew T

    Chemical geology. 2011 Nov. 7, v. 290, no. 1-2

    2011  

    Abstract: The greatest challenge limiting ⁴⁰Ar/³⁹Ar multicollection measurements is the availability of appropriate standard gasses to intercalibrate detectors. In particular, use of zoom lens ion-optics to steer and focus ion beams into a fixed detector array (i ... ...

    Abstract The greatest challenge limiting ⁴⁰Ar/³⁹Ar multicollection measurements is the availability of appropriate standard gasses to intercalibrate detectors. In particular, use of zoom lens ion-optics to steer and focus ion beams into a fixed detector array (i.e., Nu Instruments Noblesse) makes intercalibration of multiple detectors challenging because different ion-optic tuning conditions are required for optimal peak shape and sensitivity at different mass stations. We have found that detector efficiency and mass discrimination are affected by changes in ion-optic tuning parameters. Reliance upon an atmospheric Ar standard to calibrate the Noblesse is problematic because there is no straightforward way to relate atmospheric ⁴⁰Ar and ³⁶Ar to measurements of ⁴⁰Ar and ³⁹Ar if they are measured on separate detectors. After exploring alternative calibration approaches, we have concluded that calibration of the Noblesse is best performed using exactly the same source, detector, and ion-optic tuning settings as those used in routine ⁴⁰Ar/³⁹Ar analysis. To accomplish this, we have developed synthetic reference gasses containing ⁴⁰Ar, ³⁹Ar and ³⁸Ar produced by mixing gasses derived from neutron-irradiated sanidine with an enriched ³⁸Ar spike. We present a new method for calibrating the Noblesse based on use of both atmospheric Ar and the synthetic reference gasses. By combining atmospheric Ar and synthetic reference gas in different ways, we can directly measure ⁴⁰Ar/³⁹Ar, ³⁸Ar/³⁹Ar, and ³⁶Ar/³⁹Ar correction factors over ratios that vary from 0.5 to 460. These correction factors are reproducible to better than ±0.5‰ (2σ standard error) over intervals spanning ~24h but can vary systematically by ~4% over 2weeks of continuous use when electron multiplier settings are held constant. Monitoring this variation requires daily calibration of the instrument. Application of the calibration method to ⁴⁰Ar/³⁹Ar multicollection measurements of widely used sanidine reference materials ACs-2, FCs-2, and TCs-2 demonstrate that calculated ⁴⁰Ar*/³⁹ArK can be accurately corrected to yield model ⁴⁰Ar/³⁹Ar ages consistent with those reported by Earthtime ⁴⁰Ar/³⁹Ar laboratories. Replicate analyses of 8–12 single-crystal sanidine ages are reproduced to within 1–2‰ (2σ standard error) under optimal analytical conditions. This calibration technique is applicable over a wide range of isotopic ratios and signal sizes. Finally, the reference gas has the added advantage of facilitating straightforward characterization of electron multiplier dead time over a wide dynamic range.
    Keywords detectors ; monitoring ; multipliers ; new methods ; spectrometers
    Language English
    Dates of publication 2011-1107
    Size p. 75-87.
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 2179-9
    ISSN 0009-2541
    ISSN 0009-2541
    DOI 10.1016/j.chemgeo.2011.09.003
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  7. Article ; Online: Post-supereruption recovery at Toba Caldera.

    Mucek, Adonara E / Danišík, Martin / de Silva, Shanaka L / Schmitt, Axel K / Pratomo, Indyo / Coble, Matthew A

    Nature communications

    2017  Volume 8, Page(s) 15248

    Abstract: Large calderas, or supervolcanoes, are sites of the most catastrophic and hazardous events on Earth, yet the temporal details of post-supereruption activity, or resurgence, remain largely unknown, limiting our ability to understand how supervolcanoes ... ...

    Abstract Large calderas, or supervolcanoes, are sites of the most catastrophic and hazardous events on Earth, yet the temporal details of post-supereruption activity, or resurgence, remain largely unknown, limiting our ability to understand how supervolcanoes work and address their hazards. Toba Caldera, Indonesia, caused the greatest volcanic catastrophe of the last 100 kyr, climactically erupting ∼74 ka. Since the supereruption, Toba has been in a state of resurgence but its magmatic and uplift history has remained unclear. Here we reveal that new
    Language English
    Publishing date 2017-05-16
    Publishing country England
    Document type Journal Article ; Research Support, U.S. Gov't, Non-P.H.S.
    ISSN 2041-1723
    ISSN (online) 2041-1723
    DOI 10.1038/ncomms15248
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  8. Article ; Online: Abnormal Behavior of Zebrafish Mutant in Dopamine Transporter Is Rescued by Clozapine.

    Wang, Guangliang / Zhang, Guoqiang / Li, Zhuyun / Fawcett, Caroline H / Coble, Matthew / Sosa, Maria X / Tsai, Tingwei / Malesky, Kimberly / Thibodeaux, Stefan J / Zhu, Peixin / Glass, David J / Fishman, Mark C

    iScience

    2019  Volume 17, Page(s) 325–333

    Abstract: Dopamine transporter (SLC6A3) deficiency causes infantile Parkinson disease, for which there is no effective therapy. We have explored the effects of genetically deleting SLC6A3 in zebrafish. Unlike the wild-type, slc6a3-/- fish hover near the tank ... ...

    Abstract Dopamine transporter (SLC6A3) deficiency causes infantile Parkinson disease, for which there is no effective therapy. We have explored the effects of genetically deleting SLC6A3 in zebrafish. Unlike the wild-type, slc6a3-/- fish hover near the tank bottom, with a repetitive digging-like behavior. slc6a3-/- fish manifest pruning and cellular loss of particular tyrosine hydroxylase-immunoreactive neurons in the midbrain. Clozapine, an effective therapeutic for treatment-resistant schizophrenia, rescues the abnormal behavior of slc6a3-/- fish. Clozapine also reverses the abnormalities in the A8 region of the mutant midbrain. By RNA sequencing analysis, clozapine increases the expression of erythropoietin pathway genes. Transgenic over-expression of erythropoietin in neurons of slc6a3-/- fish partially rescues the mutant behavior, suggesting a potential mechanistic basis for clozapine's efficacy.
    Language English
    Publishing date 2019-07-04
    Publishing country United States
    Document type Journal Article
    ISSN 2589-0042
    ISSN (online) 2589-0042
    DOI 10.1016/j.isci.2019.06.039
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  9. Article ; Online: Genetic Control of Collective Behavior in Zebrafish.

    Tang, Wenlong / Davidson, Jacob D / Zhang, Guoqiang / Conen, Katherine E / Fang, Jian / Serluca, Fabrizio / Li, Jingyao / Xiong, Xiaorui / Coble, Matthew / Tsai, Tingwei / Molind, Gregory / Fawcett, Caroline H / Sanchez, Ellen / Zhu, Peixin / Couzin, Iain D / Fishman, Mark C

    iScience

    2020  Volume 23, Issue 3, Page(s) 100942

    Abstract: Many animals, including humans, have evolved to live and move in groups. In humans, disrupted social interactions are a fundamental feature of many psychiatric disorders. However, we know little about how genes regulate social behavior. Zebrafish may ... ...

    Abstract Many animals, including humans, have evolved to live and move in groups. In humans, disrupted social interactions are a fundamental feature of many psychiatric disorders. However, we know little about how genes regulate social behavior. Zebrafish may serve as a powerful model to explore this question. By comparing the behavior of wild-type fish with 90 mutant lines, we show that mutations of genes associated with human psychiatric disorders can alter the collective behavior of adult zebrafish. We identify three categories of behavioral variation across mutants: "scattered," in which fish show reduced cohesion; "coordinated," in which fish swim more in aligned schools; and "huddled," in which fish form dense but disordered groups. Changes in individual interaction rules can explain these differences. This work demonstrates how emergent patterns in animal groups can be altered by genetic changes in individuals and establishes a framework for understanding the fundamentals of social information processing.
    Language English
    Publishing date 2020-02-27
    Publishing country United States
    Document type Journal Article
    ISSN 2589-0042
    ISSN (online) 2589-0042
    DOI 10.1016/j.isci.2020.100942
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  10. Article ; Online: αKlotho Regulates Age-Associated Vascular Calcification and Lifespan in Zebrafish.

    Singh, Ajeet Pratap / Sosa, Maria X / Fang, Jian / Shanmukhappa, Shiva Kumar / Hubaud, Alexis / Fawcett, Caroline H / Molind, Gregory J / Tsai, Tingwei / Capodieci, Paola / Wetzel, Kristie / Sanchez, Ellen / Wang, Guangliang / Coble, Matthew / Tang, Wenlong / Cadena, Samuel M / Fishman, Mark C / Glass, David J

    Cell reports

    2019  Volume 28, Issue 11, Page(s) 2767–2776.e5

    Abstract: The hormone αKlotho regulates lifespan in mice, as knockouts die early of what appears to be accelerated aging due to hyperphosphatemia and soft tissue calcification. In contrast, the overexpression of αKlotho increases lifespan. Given the severe mouse ... ...

    Abstract The hormone αKlotho regulates lifespan in mice, as knockouts die early of what appears to be accelerated aging due to hyperphosphatemia and soft tissue calcification. In contrast, the overexpression of αKlotho increases lifespan. Given the severe mouse phenotype, we generated zebrafish mutants for αklotho as well as its binding partner fibroblast growth factor-23 (fgf23). Both mutations cause shortened lifespan in zebrafish, with abrupt onset of behavioral and degenerative physical changes at around 5 months of age. There is a calcification of vessels throughout the body, most dramatically in the outflow tract of the heart, the bulbus arteriosus (BA). This calcification is associated with an ectopic activation of osteoclast differentiation pathways. These findings suggest that the gradual loss of αKlotho found in normal aging might give rise to ectopic calcification.
    MeSH term(s) Animals ; Animals, Genetically Modified ; Fibroblast Growth Factors/genetics ; Fibroblast Growth Factors/metabolism ; Gene Knockout Techniques ; Glucuronidase/genetics ; Glucuronidase/metabolism ; Heart ; Inflammation/genetics ; Inflammation/metabolism ; Kidney/metabolism ; Longevity/genetics ; Male ; Mutation ; Myocardium/metabolism ; Osteogenesis/genetics ; RNA-Seq ; Signal Transduction/genetics ; Vascular Calcification/genetics ; Vascular Calcification/metabolism ; Vascular Calcification/mortality ; Zebrafish/genetics ; Zebrafish/metabolism
    Chemical Substances Fibroblast Growth Factors (62031-54-3) ; fibroblast growth factor 23 (7Q7P4S7RRE) ; Glucuronidase (EC 3.2.1.31) ; klotho protein (EC 3.2.1.31)
    Language English
    Publishing date 2019-09-20
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2649101-1
    ISSN 2211-1247 ; 2211-1247
    ISSN (online) 2211-1247
    ISSN 2211-1247
    DOI 10.1016/j.celrep.2019.08.013
    Database MEDical Literature Analysis and Retrieval System OnLINE

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