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Volume 19, Number 2
1 April 2023
Geosphere Cover Image for Volume 19, Issue 2
EISSN: 1553-040X

THEMED ISSUE: Different Personalities of Granites and Rhyolites: Silicic Magmas from the Lower Crust to the Surface

Differentiation of an upper crustal magma reservoir via crystal-melt separation recorded in the San Gabriel pluton, central Chile
I. Payacán; F. Gutiérrez; O. Bachmann; M.Á. Parada
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THEMED ISSUE: PLUTONS: Investigating the Relationship between Pluton Growth and Volcanism in the Central Andes

Multiple spatial and temporal scales of deformation from geodetic monitoring point to active transcrustal magma system at Uturuncu volcano, Bolivia
Elizabeth Eiden; Patricia MacQueen; Scott Henderson; Matthew Pritchard
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Current Issue Articles

New insights into the age and origin of two small Cretaceous seamount chains proximal to the Northwestern Hawaiian Ridge
Arturo Sotomayor; Andrea Balbas; Kevin Konrad; Anthony A.P. Koppers; Jasper G. Konter; V. Dorsey Wanless; Thomas F. Hourigan; Christopher Kelley; Nicole Raineault
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Picture Gorge Basalt: Internal stratigraphy, eruptive patterns, and its importance for understanding Columbia River Basalt Group magmatism
Emily B. Cahoon; Martin J. Streck; Anthony A.P. Koppers
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Making sense of brittle deformation in rhyolitic lavas: Insights from Obsidian Dome, California, USA
Shelby L. Isom; Graham D.M. Andrews; Stuart Kenderes; Alan G. Whittington
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Syntectonic sediment loading and fold-thrust belt structural architecture: An example from the central Appalachians (USA)
Mark A. Evans
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Identifying sources of non-unique detrital age distributions through integrated provenance analysis: An example from the Paleozoic Central Colorado Trough
Tyson M. Smith; Joel E. Saylor; Tom J. Lapen; Kendall Hatfield; Kurt E. Sundell
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Thermal history modeling techniques and interpretation strategies: Applications using QTQt
Alyssa L. Abbey; Mark Wildman; Andrea L. Stevens Goddard; Kendra E. Murray
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Using discordant U-Pb zircon data to re-evaluate the El Paso terrane: Late Paleozoic tectonomagmatic evolution of east-central California (USA) and intense hydrothermal activity in the Ju...
Diane Clemens-Knott; Michelle Gevedon
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Systematic vertical organization of matrix-rich and associated matrix-poor sandstones in ancient deep-marine slope and basin-floor deposits
Jagabir Ningthoujam; R.W.C. (Bill) Arnott; Curran Wearmouth
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Compositions and ages of Early Cretaceous volcanic and plutonic rocks in central Tibet: Insights into the magmatic and uplift response to slab breakoff
Hao Wu; Fei Liu; Xi-Jun Liu; Yan-Wang Wu; Cai Li; Rui Yang
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Tectonomagmatic evolution of southwestern Laurentia: Insights from zircon U-Pb geochronology and hafnium isotopic composition of the Red Bluff Granite Suite, west Texas, USA
Munazzam Ali Mahar; Philip C. Goodell; Jason W. Ricketts; Eric J. Kappus; James L. Crowley; Anthony M. Alvarez
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Critical workforce skills for bachelor-level geoscientists: An analysis of geoscience job advertisements
G.W. Shafer; K. Viskupic; A.E. Egger
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  • Cover Image

    Cover Image

    issue cover

    CAPTION: A 61-mile-long white line cuts across the western edge of the desert in Western Sahara (Africa) from the Bou Craa phosphate mine to the coastal town of El Marsa near Laayoune. Dust from phosphate rock can be seen blowing from the belt structure in this 14 December 2022 image.

    CREDIT: NASA Earth Observatory image by Lauren Dauphin, using MODIS data from NASA EOSDIS LANCE and GIBS/Worldview.

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