Early Pleistocene Glacier Ice Preserved in Permafrost in the Eastern Canadian Arctic Academic Background Permafrost is a crucial paleoenvironmental archive on Earth, capable of preserving valuable information such as fossils, plant remains, organic materials, and ancient DNA. In recent years, scientists have discovered that the preservation of glac...

Salt Marsh Topography Reveals the Signature of Storm-Surge-Driven Sedimentation Academic Background Salt marshes are transitional zones located in low-lying, sheltered coastlines, situated between land and sea. They are among the most productive and fragile ecosystems on Earth, providing essential ecological services such as carbon sequestration, w...

Terrestrial Ecosystem Crisis at the Permian-Triassic Boundary Academic Background The Permian-Triassic boundary (approximately 252 million years ago) marks one of the most severe mass extinction events in Earth’s history, devastating not only marine ecosystems but also profoundly impacting terrestrial ecosystems. Although scientists generally agree...

Study on the Origin of Near-Ridge Seamount Chains in the South Pacific Academic Background Seamount chains in the ocean have long been considered products of mantle plume activity, such as the famous Hawaiian-Emperor seamount chain. However, most seamounts in the Pacific Ocean do not exhibit age progression and are relatively small in volume, sugge...

The Opening of the North Atlantic Ocean and the Rise of the Scandinavian Mountains Academic Background The Scandinavian Mountains (Scandes) are a significant geomorphological feature in northern Europe, but their formation mechanism has long remained a mystery. Traditionally, mountain formation is associated with convergent plate boundaries. Howeve...

Research Report on the Pulse of Intense Oxidative Weathering During the Latest Paleoproterozoic Academic Background The level of atmospheric oxygen on Earth has a profound impact on the ecology and biogeochemical functioning of marine ecosystems. The Great Oxidation Event (GOE), which occurred approximately 2.5 to 2.2 billion years ago, marked a si...

The Emergence of Global Continental Collision and the Onset of Massive Crustal Eclogitization Academic Background The evolution of Earth’s crust is closely related to the development of plate tectonics, particularly the compositional changes in continental crust, which provide key evidence for understanding the evolution of plate tectonics. However...

Control of Sediment Supply Variations on Lower Eocene Delta Sequences Academic Background In geological research, the formation of depositional sequences is often attributed to changes in accommodation space, while variations in sediment supply are frequently overlooked. However, changes in sediment supply may play a significant role in the formati...

Study on Continental Weathering and Reductive Surface Runoff During the Triassic-Jurassic Transition Academic Background The Triassic-Jurassic Transition (TJT) marks one of the most significant mass extinction events in Earth’s history, known as the End-Triassic Extinction (ETE). This event led to a widespread decline in biodiversity across both ma...

Discovery of Deep Sulfide Cumulates Beneath the Jinchuan Ni-Cu-Platinum Group Element Deposit and Its Significance Background Introduction Nickel (Ni), copper (Cu), and platinum group elements (PGE) are critical metal resources on Earth, widely used in industries, electronics, and new energy sectors. Approximately 56% of the world’s nickel, 3% of c...