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JGR: Source-to-Sink Terrestrial Analogs for the Paleoenvironment of Gale Crater, Mars

Michael T. Thorpe, Joel A. Hurowitz, and Kirsten L. Siebach doi: 10.1029/2020JE006530 Abstract In the Late Noachian to Early Hesperian period, rivers transported detritus from igneous source terrains to a downstream lake within Gale crater, creating a stratified stack of fluviolacustrine rocks that is currently exposed along the slopes of Mount Sharp. Controversy exists regarding […]

PLoS ONE: Stable isotope (C, N, O, and H) study of a comprehensive set of feathers from two Setophaga citrina

Stable isotope (C, N, O, and H) study of a comprehensive set of feathers from two Setophaga citrina Samiksha Deme, Laurence Y. Yeung, Tao Sun, and Cin-Ty A. Lee, PLoS ONE 16 (2021): e0236536. Abstract Oxygen, hydrogen, carbon and nitrogen stable isotopes were measured on a comprehensive sampling of feathers from two spring Hooded Warblers […]

RiMG: Climbing to the Top of Mount Fuji: Uniting Theory and Observations of Oxygen Triple Isotope Systematics

Laurence Y. Yeung and Justin A. Hayles Rev. Mineral. Geochem. 86 (2021) 97-137 Abstract Are current theoretical methods sufficiently accurate to benchmark oxygen triple-isotope geochemistry? In this review and synthesis article, we first cover basic concepts and notation relevant to oxygen triple-isotope geochemistry. Second, we examine what theory predicts for oxygen triple-isotope variability in chemical […]

Nature Communications: Effects of climate change on the movement of future landfalling Texas tropical cyclones

Pedram Hassanzadeh, Chia-Ying Lee, Ebrahim Nabizadeh, Suzana J. Camargo, Ding Ma, and Laurence Y. Yeung Nature Communications 11 (2020): 3319. doi: 10.1038/s41467-020-17130-7 Abstract The movement of tropical cyclones (TCs), particularly around the time of landfall, can substantially affect the resulting damage. Recently, trends in TC translation speed and the likelihood of stalled TCs such as […]

ACS Earth and Space Chemistry: What Fractionates Oxygen Isotopes During Respiration? Insights from Multiple Isotopologue Measurements and Theory

Jeanine L. Ash, Huanting Hu, and Laurence Y. Yeung Abstract The precise mass dependence of respiratory O2 consumption underpins the “oxygen triple-isotope” approach to quantifying gross primary productivity in modern and ancient environments. Yet, the physical-chemical origins of the key 18O/16O and 17O/16O covariations observed during respiration have not been tied to theory; thus the […]

SCIENCE: Illuminating seafloor faults and ocean dynamics with dark fiber distributed acoustic sensing

Nathaniel J. Lindsey, T. Craig Dowe, and Jonathan B. Ajo-Franklin Abstract Distributed fiber-optic sensing technology coupled to existing subsea cables (dark fiber) allows observation of ocean and solid earth phenomena. We used an optical fiber from the cable supporting the Monterey Accelerated Research System during a 4-day maintenance period with a distributed acoustic sensing (DAS) […]

Tectonophysics: Fracture-induced pore fluid pressure weakening and dehydration of serpentinite

Melodie E. French, Greg Hirth, and Keishi Okazaki Tectonophysics 767 (2019) 228168 doi: 10.1016/j.tecto.2019.228168 Abstract We investigate the strength, deformation processes, and pore fluid weakening during localized shear of antigorite serpentine. Recent work has shown that some phyllosilicates, including antigorite, undergo a reverse transition from ductile to localized deformation at the pressure-temperature conditions of deep […]

JGR-Solid Earth: Upper Crustal Structure and Magmatism in Southwest Washington: Vp, Vs, and Vp/Vs Results From the iMUSH Active‐Source Seismic Experiment

Eric Kiser, Alan Levander, Colin Zelt, Brandon Schmandt, and Steven Hansen J. Geophys. Res.-Solid Earth 124 (2019) 7067-7080. 10.1029/2018JB016203 Abstract Structural details of the crust play an important role in controlling the distribution of volcanic activity in arc systems. In southwest Washington, several different regional structures associated with accretion and magmatism have been invoked to […]

GRL: Constraining crustal properties using receiver functions and the autocorrelation of earthquake‐generated body waves

Jonathan Delph, Fenglin Niu, and Alan Levander Geophys. Res. Lett. (2019) 10.1029/2019JB017929 Abstract Passive seismic methods for imaging the discontinuity structure of Earth have primarily focused on differences in vertically and radially‐polarized energy in the coda of earthquake‐generated body waves (e.g., receiver functions). To convert the timing of scattered wave arrivals to depth, 3 parameters […]

Nature: Isotopic constraint on the twentieth-century increase in tropospheric ozone

  Isotopic constraint on the twentieth-century increase in tropospheric ozone Laurence Y. Yeung, Lee. T. Murray, Patricia Martinerie, Emmanuel Witrant, Huanting Hu, Asmita Banerjee, Anaïs Orsi & Jérôme Chappellaz Nature 570 (2019) 224-227 Abstract Tropospheric ozone (O3) is a key component of air pollution and an important anthropogenic greenhouse gas. During the twentieth century, the proliferation […]