A5111917990- Paleontology and Stratigraphy of Fossils
- Geology and Paleoclimatology Research
- Geochemistry and Elemental Analysis
- Geological and Geophysical Studies
- Geological and Geochemical Analysis
- Hydrocarbon exploration and reservoir analysis
- Stability and Control of Uncertain Systems
- Smart Grid Security and Resilience
- Methane Hydrates and Related Phenomena
- Paleontology and Evolutionary Biology
- Geochemistry and Geologic Mapping
- Distributed Control Multi-Agent Systems
- Security in Wireless Sensor Networks
- Geological Studies and Exploration
- Marine Biology and Ecology Research
- Evolution and Paleontology Studies
- Fault Detection and Control Systems
- Cybersecurity and Information Systems
- Evaluation and Optimization Models
- Sarcoma Diagnosis and Treatment
- Regional Economic and Spatial Analysis
- Evaluation Methods in Various Fields
- Garlic and Onion Studies
- Vehicle emissions and performance
- Advanced Decision-Making Techniques
Dalian Maritime University
2023-2025
Chinese Academy of Sciences
2009-2022
Institute of Geographic Sciences and Natural Resources Research
2009-2022
Harbin Engineering University
2022
University of Chinese Academy of Sciences
2017-2020
Huazhong University of Science and Technology
2013
Chifeng Municipal Hospital
2013
Beijing Foresty Machinery Institute
2012
Institute of Geochemistry
2001-2010
University of Münster
2007-2009
Research Article| May 01, 2009 Reconstructing Earth's surface oxidation across the Archean-Proterozoic transition Qingjun Guo; Guo 11State Key Laboratory of Environmental Geochemistry, Institute Chinese Academy Sciences, Guiyang 550002, China 22Geologisch-Paläontologisches Institut der Westfälischen Wilhelms-Universität Münster, Corrensstraße 24, 48149 Germany *E-mail: guoqingjun@vip.skleg.cn. Search for other works by this author on: GSW Google Scholar Harald Strauss; Strauss Alan J....
Cap dolostones of the Ediacaran Doushantuo Formation (Yangtze Platform, South China) from various palaeo-water depths were studied to evaluate extent their diagenetic alteration and assess temporal spatial variations seawater chemistry in aftermath Marinoan glaciation. Diagenetic fluid overprint is common cap dolostone lithologies. However, mobilization trace elements modification Sr O isotopic compositions are variable controlled by multiple stages overprint. The highest 87 Sr/ 86 ratios...
Abstract Sedimentary rocks from the Ediacaran–Cambrian boundary record important biological, climatic and geotectonic changes during this time. To date, only few geochemical investigations on upper Ediacaran – Cambrian in Tarim Basin have been carried out. Here, we report high-resolution δ 13 C carb records Penglaiba, Wushi phosphorite Dongergou sections Series 3 Keping area of Basin. The display several obvious shifts; values increased 3‰ to 6.7‰ across Qigebulage Formation. Moreover, a...
Secular variations in the carbon isotopic composition of organic and carbonate characterize Lower to Middle Cambrian transition that is exposed on Yangtze Platform at Taijiang, Guizhou Province, southern China. δ 13 C values for matter range between −33.4 −26.5‰. The fluctuates −2.7 +3.1‰. A progressive decrease difference (Δδ) these two isotope records reflects a proportional contribution bacterial biomass total sedimentary matter. In general, observed changes are interpreted reflect...
A trilobite biostratigraphic study of a new section the Kaili Formation at Jianshan, Chuandong Village, Jianhe County, Guizhou is reported. Additional occurrences key species associated with Ovatoryctocara granulata–Bathynotus holopygus Zone and overlying Oryctocephalus indicus that were originally defined from assemblages Wuliu-Zengjiayan are reported this section. The first appearance datum (FAD) occurs 44.52 m above base unit. Based on abundant specimens (n = 800) Formation, we argue...
This paper concerns the rate-based output regulation (OR) for switched interval type-2 (IT2) fuzzy systems (SIT2FSs) with severe instability. To expedite synchronization activated subsystem and more effectively mitigate of overshooting, addressed need to convey system modal readily accessible state derivatives controller. The primary challenge in control synthesis arises from potential impact multiple data injection attacks (MDIAs) on networks connecting Such can not only compromise states...
Abstract: Secular variations of carbon isotopic composition organic can be used in the study global environmental variation, cycle, stratigraphic delimitation, and biological evolution, etc. Organic analysis Nangao Zhalagou sections eastern Guizhou reveals a negative excursion near Precambrian‐Cambrian boundary that correlates with distinct carbonate at this globally. Our results also demonstrate several alternating positive shifts occur Meishucunian, an obvious anomaly appears between...
Abstract: Metazoan fossils in the Gaojiashan Biota are famous for being well preserved and may provide new insights into early evolution skeletonization of Metazoans. We studying isotopic compositions organic carbonate carbon from a sequence sedimentary rocks at section, northern Yangtze Platform, Shaanxi Province China. Organic isotope values display range between −30.8‰ −24.7‰ with clear stratigraphic variations. Carbonate data vary 0.1‰ +6‰. Positive δ 13 C sediments biota reflect...