A5016348832- Hydrocarbon exploration and reservoir analysis
- Paleontology and Stratigraphy of Fossils
- Geochemistry and Elemental Analysis
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Methane Hydrates and Related Phenomena
- Geological and Geochemical Analysis
- Geology and Paleoclimatology Research
- Geological and Geophysical Studies
- Geological Studies and Exploration
- Atmospheric and Environmental Gas Dynamics
- Radioactive element chemistry and processing
- Geochemistry and Geologic Mapping
- Wastewater Treatment and Nitrogen Removal
- Remote Sensing and Land Use
- Marine and coastal ecosystems
- Coal Properties and Utilization
- earthquake and tectonic studies
- Petroleum Processing and Analysis
- Toxic Organic Pollutants Impact
- Geoscience and Mining Technology
- High-pressure geophysics and materials
- Microbial Community Ecology and Physiology
- Coal and Its By-products
- Tree Root and Stability Studies
Research Institute of Petroleum Exploration and Development
2016-2025
Shanghai East Hospital
2025
Jining Medical University
2025
Changchun Institute of Applied Chemistry
2006-2024
Chinese Academy of Sciences
2008-2024
University of Science and Technology of China
2024
China National Petroleum Corporation (China)
2015-2024
PLA Information Engineering University
2008-2024
Northwestern Polytechnical University
2011-2024
National Satellite Ocean Application Service
2005-2024
Abstract The Xiamaling Formation in the North China Block contains a well-preserved 1400 Ma sedimentary sequence with low degree of thermal maturity. Previous studies have confirmed dynamic and complex nature this evolving marine setting, including existence an oxygen-minimum zone, using multi-proxy approaches, iron speciation, trace metal dynamics, organic geochemistry. Here, we investigate prevailing redox conditions during diagenesis via biomarkers rearranged hopanes from finely laminated...
Significance How have environmental constraints influenced the timing of animal evolution? It is often argued that oxygen first increased to sufficient levels for respiration during Neoproterozoic Eon, 1,000 million 542 years ago, thus explaining evolution. We report geochemical evidence deep-water oxygenation below an ancient minimum zone 1,400 ago. Oceanographic modeling constrains atmospheric a ∼4% today’s values, fueled early-evolved clades. Therefore, we suggest there was animals long...
Abstract Hydrocracking catalysis is a key route to plastic waste upgrading, but the acid site‐driven C−C cleavage step relatively sluggish in conventional bifunctional catalysts, dramatically effecting overall efficiency. We demonstrate here facile and efficient way boost reactivity of sites by introducing Ce promoters into Pt/HY thus achieving better metal‐acid balance. Remarkably, 100 % low‐density polyethylene (LDPE) can be converted with 80.9 selectivity liquid fuels over obtained...
Significance There is a wealth of evidence pointing to dramatic short-term climate change on Earth over the last few million years. Much this driven by variations Earth’s orbit around Sun with characteristic frequencies known as Milankovitch cycles. Robust for orbitally change, however, becomes rare one descends deep into time. We studied an exceptional record recorded in 1.4-billion-year-old marine sediments from North China. This documents regular changes subtropical/tropical Hadley Cell...
Abstract The history of atmospheric oxygen through the Mesoproterozoic Era is uncertain, but may have played a role in timing major evolutionary developments among eukaryotes. Previous work using chromium isotopes sedimentary rocks has suggested that levels were too low concentration (<0.1% present-day (PAL)) for expansion eukaryotic algae and evolution crown-group animals occurred later Neoproterozoic Era. In contrast, our new results on from Mesoproterozoic-aged Shennongjia Group South...
Economically producing hydrogen via electrocatalytic water splitting requires highly efficient and low-cost catalysts scalable synthetic strategies. Herein, we present the preparation of hierarchically structured multi-elements electrocatalysts consisting Fe, Co, Ni, S, P, O with a one-step electrodeposition method. By tuning non-metal compositions catalysts, electrochemical performances for both oxygen evolution reaction (OER) (HER) in 1 M KOH can be rationally modified, respectively. Under...
Abstract Freshwater fish biodiversity is quickly decreasing and requires effective monitoring conservation. Environmental DNA (eDNA)‐based methods have been shown to be highly sensitive cost‐efficient for aquatic surveys, but few studies systematically investigated how spatial sampling design affects eDNA‐detected communities across lentic systems of different sizes. We compared the patterns diversity determined using eDNA in three lakes small (SL; 3 ha), medium (ML; 122 ha) large (LL; 4,343...
We describe a 1,400 million-year old (Ma) iron formation (IF) from the Xiamaling Formation of North China Craton. estimate this IF to have contained at least 520 gigatons authigenic Fe, comparable in size many IFs Paleoproterozoic Era (2,500-1,600 Ma). Therefore, substantial formed time window between 1,800 and 800 Ma, where they are generally believed been absent. The is exceptionally low thermal maturity, allowing preservation organic biomarkers an unprecedented view iron-cycle dynamics...
Through the study of organic matter enrichment, hydrocarbon generation and accumulation process black shale Cretaceous Qingshankou Formation in Songliao Basin, enrichment mechanism Gulong oil distribution conventional–unconventional are revealed. The Basin is a huge interior lake basin formed Early under control subduction retreat western Pacific plate massive horizontal displacement Tanlu Fault Zone Northeast China. During deposition Formation, strong terrestrial hydrological cycle led to...
ABSTRACT Earth has a prolonged history characterized by substantial cycling of matter and energy between multiple spheres. The production organic carbon can be traced back to as early ∼4.0 Ga, but the frequency scale organic-rich shales have varied markedly over geological time. In this paper, we discuss cycle development black shale from perspective System Science. We propose that depositions are results interactions among lithospheric evolution, orbital forcing, weathering, photosynthesis...
The volatility of light hydrocarbons means that the conventional dichloromethane (DCM) extraction method may underestimate shale oil content, thereby limiting its usefulness in studies content and mobility within pores. Here, a involving combination DCM low-field (LF)–NMR. spectroscopy was developed for study typical reservoir Songliao Basin, Northeast China, measuring total, adsorbed, mobile, free contents oil, gas, water saturation. Factors affecting were also considered. Total range...
Abstract Hydrocracking catalysis is a key route to plastic waste upgrading, but the acid site‐driven C−C cleavage step relatively sluggish in conventional bifunctional catalysts, dramatically effecting overall efficiency. We demonstrate here facile and efficient way boost reactivity of sites by introducing Ce promoters into Pt/HY thus achieving better metal‐acid balance. Remarkably, 100 % low‐density polyethylene (LDPE) can be converted with 80.9 selectivity liquid fuels over obtained...
With the presence of biopolymer-sodium alginate as additive, Eu-doped ZnO (zinc oxide) urchins consisting nanorods were synthesized through a hydrothermal route. X-ray diffraction pattern makes evident absence phase other than würtzite ZnO. Upon excited by 325nm xenon laser, such nanostructured emit white light, which originates from luminescence and intra-4f transitions Eu3+ ions. Besides acting stabilizing agent, sodium may also sensitize ions in nanostructures facilitate energy transfer host to
Understanding the contribution of road-deposited sediment (RDS) and its washoff process is essential for controlling urban runoff pollution. Ninety-seven RDS samples were collected along urban-suburban-rural gradient from areas five administrative units in Beijing metropolitan region, including central (UCA), village (UVA), suburban county (CSA), rural town (RTA), (RVA) areas. was evaluated with different particle sizes using a rainfall simulator. Heavy metal elements (i.e., Cr, Cu, Ni, Pb,...
The Xiamaling Formation is an exceptionally well-preserved sedimentary succession deposited on a marine passive margin about 1400 million years ago. We used multi-proxy approach, including iron speciation, trace metal dynamics, and organic geochemistry, to explore the evolution of ocean chemistry through most Formation. This put in context paleogeography sedimentological depositional system. Overall, informally divided into six units based both geochemical criteria. Of units, we fully...