Author Archive for: lyeung@rice.edu

RCMS: Scale distortion from pressure baselines as a source of inaccuracy in triple-isotope measurements

Science Advances: Extreme enrichment in atmospheric ¹⁵N¹⁵N

EPSL: Low oxygen and argon in the Neoproterozoic atmosphere at 815 Ma

The relative abundances of resolved ¹²CH₂D₂ and ¹³CH₃D and mechanisms controlling isotopic bond ordering in abiotic and biotic methane gases

Isotopic ordering in atmospheric O₂ as a tracer of ozone photochemistry and the tropical atmosphere

PNAS: Widespread collapse of the Ross Ice Shelf during the late Holocene

Combinatorial effects on clumped isotopes and their significance in biogeochemistry

RCMS: Scale distortion from pressure baselines as a source of inaccuracy in triple-isotope measurements

Science Advances: Extreme enrichment in atmospheric ¹⁵N¹⁵N

EPSL: Low oxygen and argon in the Neoproterozoic atmosphere at 815 Ma

The relative abundances of resolved ¹²CH₂D₂ and ¹³CH₃D and mechanisms controlling isotopic bond ordering in abiotic and biotic methane gases

Isotopic ordering in atmospheric O₂ as a tracer of ozone photochemistry and the tropical atmosphere

PNAS: Widespread collapse of the Ross Ice Shelf during the late Holocene

Combinatorial effects on clumped isotopes and their significance in biogeochemistry

Current Research in EEPS Seminar: Ingrid Johanson – Hawaiian Volcano Observatory

Current Research in EEPS Seminar: Clara Blättler – University of Chicago

About Laurence Yeung

About Laurence Yeung

About Laurence Yeung

Entries by Laurence Yeung

Entries by Laurence Yeung

Entries by Laurence Yeung

My research focuses on Earth's atmospheric and biogeochemical cycles. Specifically, I use stable isotopes to understand processes ranging from stratospheric chemistry to carbon cycling in the oceans. My expertise also includes public engagement in science: I was a founding producer for PHD TV, an online-based science outreach venture led by Jorge Cham (creator of PHD Comics). My animated video, Teamwork in the Tropical Atlantic (a collaboration with Meg Rosenburg), was a finalist in the 2014 BLUE Ocean Film Festival and won second place in the 2014 Ocean180 video contest. I received my B.A. in chemistry from Oberlin College and Ph.D. in physical chemistry from the California Institute of Technology.

August 10, 2018 /0 Comments/in Recent Publications /by Laurence Yeung

Laurence Y. Yeung, Justin A. Hayles, Huanting Hu, Jeanine L. Ash, and Tao Sun Rapid Comm. Mass Spectrom. (2018) doi: 10.1002/rcm.8247 Rationale: Isotope ratio measurements have become extremely precise in recent years, with many approaching parts‐per‐million (ppm) levels of precision. However, seemingly innocuous errors in signal baselines, which exist only when gas enters the instrument, […]

November 17, 2017 /0 Comments/in Recent Publications /by Laurence Yeung

Laurence Y. Yeung, Shuning Li, Issaku E. Kohl, Joshua A. Haslun, Nathaniel E. Ostrom, Huanting Hu, Tobias P. Fischer, Edwin A. Schauble and Edward D. Young Abstract Molecular nitrogen (N2) comprises three-quarters of Earth’s atmosphere and significant portions of other planetary atmospheres. We report a 19 per mil (‰) excess of 15N15N in air relative […]

November 7, 2017 /0 Comments/in Recent Publications /by Laurence Yeung

Laurence Y. Yeung Abstract The evolution of Earth’s atmosphere on >106>106-yr timescales is tied to that of the deep Earth. Volcanic degassing, weathering, and burial of volatile elements regulates their abundance at the surface, setting a boundary condition for the biogeochemical cycles that modulate Earth’s atmosphere and climate. The atmosphere expresses this interaction through its […]

January 13, 2017 /0 Comments/in Recent Publications /by Laurence Yeung

E. D. Young, I. E. Kohl, B. Sherwood Lollar, G. Etiope, D. Rumble III, S. Li (李姝宁), M. A. Haghnegahdar, E. A. Schauble, K. A. McCain, D. I. Foustoukos, C. Sutclife, O. Warr, C. J. Ballentine, T. C. Onstott, H. Hosgormez, A. Neubeck, J. M. Marques, I. Pérez-Rodríguez, A. R. Rowe, D. E. LaRowe, C. […]

October 26, 2016 /0 Comments/in Recent Publications /by Laurence Yeung

Yeung, L. Y., L. T. Murray, J. L. Ash, E. D. Young, K. A. Boering, E. L. Atlas, S. M. Schauffler, R. A. Lueb, R. L. Langenfelds, P. B. Krummel, L. P. Steele, and S. D. Eastham, “Isotopic ordering in atmospheric O2 as a tracer of ozone photochemistry and the tropical atmosphere,” J. Geophys. Res. […]

February 18, 2016 /0 Comments/in Recent Publications /by Laurence Yeung

Widespread collapse of the Ross Ice Shelf during the late Holocene Proceedings of the National Academy of Sciences, vol. 113 no. 9, 2354–2359, doi: 10.1073/pnas.1516908113 Yusuke Yokoyama*, John B. Anderson, Masako Yamane, Lauren M. Simkins, Yosuke Miyairi, Takahiro Yamazaki, Mamito Koizumi, Hisami Suga, Kazuya Kusahara, Lindsay Prothro, Hiroyasu Hasumi, John R. Southon, and Naohiko Ohkouchi […]

October 18, 2015 /0 Comments/in Recent Publications /by Laurence Yeung

A new paper from Laurence Yeung on the fundamentals of “clumped-isotope” fractionation, was recently accepted in Geochimica et Cosmochimica Acta. It shows, through simple theoretical arguments, the factors influencing the occurrence of rare-isotope pairs in molecules when they are made. One might be able to base future tracers of biogeochemistry on these principles. One of the […]

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