ResearchProgram-China University of Geosciences, Beijing

CUGB

Research Programs

Characterization of “Orange Peel” Surface Microstructure of White Nephrite from Russia: A Unique Pseudomorph Pattern

The term orange peel effect is often used to refer to the uneven appearance of the polished surface of jadeite, which arises due to the hardness anisotropy of its mineral grains arranged in different directions.

Dec 2, 2025
An expansive global oxygenation of Earth’s surface environments 1.4 billion years ago

The notion of biogeochemical stasis during the Mesoproterozoic era (1.6 to 1.0 billion years ago, Ga) has been increasingly challenged by evidence of transient episodes of increased oxygen (O2) levels in localized basins.

Nov 28, 2025
Apatite in granite as a fingerprint of gold mineralization: A case study from the Jiaodong goldfield, North China Craton

The relationship between granitoids and gold mineralization, particularly as a prospecting indicator, is a topic of longstanding debate.

Nov 26, 2025
Conduit or Barrier? Insights From Rock Magnetic Properties of the Red River Fault, China

Fault zones, with their dense networks of fractures and microfractures, often serve as primary pathways for fluid migration.

Nov 26, 2025
Formation mechanism of boehmite and diaspore in karstic bauxites: Trace element geochemistry in source materials using a large sample geochemical dataset and a random forest model

Boehmite and diaspore are the two economic ore minerals of karstic bauxites.

Nov 19, 2025
Deep learning spectral infrared digital holography for phase analysis of shale characterization

Micrometer-scale pores, crucial for hydrocarbon transport in unconventional reservoirs, mainly consist of cracks and intergranular pores.

Nov 19, 2025
Ytterbium-incorporated porphyrin nanostructure-modified carbon electrodes for ultra-sensitive detection of lead ions in water environments

Simple modification of electrodes for sensitive Pb(II) detection is the key to the realization of electrochemical sensors for monitoring water pollution, but it remains a challenge.

Nov 13, 2025
Mechanistic Investigation of Salt Precipitation Induced by Supercritical CO2 in Saline Aquifers

Salt precipitation near injection wells critically influences both the efficiency and integrity of CO2 geological storage in saline aquifers, especially under high-salinity conditions.

Nov 12, 2025
Significant decline in oxygen levels following the Great Oxidation Event

The early Paleoproterozoic Great Oxidation Event (GOE) represents the first and most significant oxygenation in Earth history, profoundly changing Earth’s surface systems from anoxic to moderately oxic states, thus paving the way for the origin and evolution of early eukaryotes.

Nov 10, 2025
From oceanic subduction to postcollision: Orogenic extension and bimodal magmatism along the eastern northern margin of the North China Craton in the Paleozoic–Mesozoic era

From the late Paleozoic to early Mesozoic era, the northern margin of the North China Craton underwent intense tectonic-magmatic processes due to the southward subduction and closure of the Paleo Asian Ocean.

Nov 7, 2025