Long-Fei Gou

Long-Fei Gou
Chinese Academy of Sciences | CAS · Institute of Earth Environment

Doctor of Philosophy

About

22
Publications
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Introduction
am working on the elements cycle on the skin of Earth, exploring the capacity of carbon dioxide drawdown via chemical weathering using non - traditional stable isotopes.

Publications

Publications (22)
Article
To evaluate the roles of climate and hydrology in continental-scale silicate weathering, we applied Li isotopes to the Yellow River and systematically investigated seasonal Li flux, Li isotopic compositions and potential sources. We collected samples from the middle reaches of the Yellow River weekly over the full hydrological year of 2013. We find...
Article
The multiple collector inductively coupled plasma mass spectrometer (MC-ICP-MS) is booming to be a high-precision, fast, and accurate instrument in measuring lithium (Li) isotopes. Modified highly sensitive Jet sample and X skimmer cones have largely upgraded analytical sensitivity and reduced sample consumption with distinct instrumental mass bias...
Article
Full-text available
Rationale: Lithium (Li) isotopes have increasingly been applied as a tracer in earth and planetary sciences and their effectiveness relies upon accurate and precise Li isotopic data. Nowadays, MC-ICP-MS combined with chromatographic purification is the most common strategy for obtaining Li isotopic ratios in natural samples, with a long-term inter...
Article
Lithium (Li) isotopes have shown large potential in tracing weathering in various water bodies, but there is limited study on Li isotopes in subsurface conditions where CO2 has been largely consumed. In this study, we use a thick sandstone aquifer in the Ordos Basin, NW China, as a natural setting to investigate the behaviors of Li isotopes in hydr...
Article
Full-text available
Riverine lithium (Li) isotopes have been considered as a robust tracer for silicate weathering, but processes controlling riverine δ7Li ratios remain controversial. To address the impacts of weathering and hydrology on riverine δ7Li, the seasonal variation of water chemistry in the Min Jiang at the eastern Tibetan Plateau was investigated over Dece...
Article
Carbonate weathering regulates the short-term carbon (C) cycle and global climate due to its fast response to hydrological processes. The carbonate weathering flux needs to be well constrained to better understand the climate change at short time scale. Riverine magnesium (Mg) isotopes are sensitive to primary mineral dissolution and so have great...
Article
Full-text available
Lithium isotopes show great potential to trace Earth surface processes due to the large mass discrimination between 6Li and 7Li associated with clay uptake. However, factors controlling the Li isotopic composition (δ7Li) of river water, especially those with a water-bedrock δ7Li difference higher than that of the equilibrium fractionation associate...
Article
Full-text available
Li contents and isotopic compositions of a tropical regolith developed on young basalt (ca. 1 Ma) were investigated to elucidate Li isotopic fractionation during basalt weathering so as to trace basalt weathering. Li isotopic composition of sand from Asian dust-source regions and local dust near the basaltic saprolite weathering profile were studie...
Article
With the development and application of multi-collector inductively coupled plasma spectrometry (MC-ICP-MS), the huge potentials and applications of non-traditional stable isotopes have been developed in various fields of geoscience. Decades ago, barium (Ba) isotopes were first used to investigate the origin of the planets. With the improvement of...
Article
Tracing pedogenic processes is fundamental for reconstructing climatic and environmental changes using loess deposits. Lithium isotopes can serve as a sensitive tracer to unravel these processes, owing to its active behaviors without effect by redox and biological reactions. This study investigated the Li contents and δ⁷Li values of leachate and re...
Article
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The cover image is based on the Original Article The sources and seasonal fluxes of particulate organic carbon in the Yellow River by Yuanxin Qu, Zhangdong Jin et al., https://doi.org/10.1002/esp.4861.
Article
It has been proposed that the riverine Mg isotopes are sensitive to primary mineral dissolution and the formation of secondary minerals and are served as an effective tracer for chemical weathering. Glacial comminution can produce fresh mineral surfaces that provide easily leached cations to the rivers and thus could potentially modify the riverine...
Article
Full-text available
The Yellow River transports a large amount of sediment and particulate organic carbon (POC), which is thought to mainly derive from erosion of the Chinese Loess Plateau (CLP). However, the compositions, sources and erosional fluxes of POC in the Yellow River remain poorly constrained. Here we combined measurements of mineralogy, total organic carbo...
Article
Full-text available
Infrequent extreme events such as large earthquakes pose hazards and have lasting impacts on landscapes and biogeochemical cycles. Sediments provide valuable records of past events, but unambiguously identifying event deposits is challenging because of nonlinear sediment transport processes and poor age control. Here, we have been able to directly...
Article
BACKGROUND: Lithium isotopes are widely used in various fields of earth and planetary science. Accurate determination of the lithium isotopic ratio is the premise of tracing various natural processes. However, there are large deviations in the measured values of lithium isotopic reference materials reported by international laboratories. For exampl...
Article
Barium (Ba) isotopes have been booming while providing ubiquitous traceability to various geochemical/oceanographical processes in recent years. Accurate and precise determinations of Ba isotopes is the main precondition to apply them to tracing various processes. However, a particular determination method is lacking for Ba isotopic ratios in river...
Article
Rationale High‐precision determination of magnesium (Mg) isotopes can now be routinely achieved by multi‐collector inductively coupled plasma mass spectrometry (MC‐ICP‐MS). The analytical sensitivity and instrumental mass discrimination behavior of this method are, however, sensitive to the types of sample and skimmer cones used in these measuremen...
Article
Full-text available
Efficient isolation and purification of lithium (Li) were accomplished for various environmental and geological samples by a series of iterative experiments. These experiments led to the creation of a set of recommended experimental conditions including an 8 mL column volume, AG 50W-X12 resin, and 0.5 mol/L HNO 3 eluent. Eluate was collected during...
Article
Full-text available
Abstract: Background, aim, and scope Since weathering processes constrain the cycle of elements and their transportation from the continents to the lake/ocean reservoirs, shape the topography of continents, and regulate global carbon cycle and therefore climate changes by consuming atmospheric carbon dioxide over geological time-scales, how to effe...

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Projects

Project (1)
Project
Using cation isotopes (Li, Mg, K, Sr, Ba ) to trace chemical weathering.