Intensified Continental Weathering and Reductive Surface Runoff During the Triassic–Jurassic Transition

Earth Sciences, Geochemistry, Geology, Geochemistry,
Triassic-Jurassic transition   continental weathering   reductive runoff   iron isotopes   zinc isotopes   chemical index of alteration   biochar  

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...

Hidden Deep Sulfide Cumulates Beneath the Jinchuan Ni–Cu–Platinum-Group Element Deposit (China) Inferred from Ni–Cu Isotopes

Earth Sciences, Geochemistry, Geology, Engineering, Mining and Metallurgical Engineering,
Ni–Cu isotopes   Jinchuan deposit   sulfide cumulates   platinum-group elements   magmatic differentiation   deep mineralization   geochemistry  

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...

Late Triassic Continental Eclogite in the Central Tibetan Plateau Reveals 2500-km-long Paleo-Tethys Continental Subduction

Earth Sciences, Geochemistry, Geology,
Tibetan Plateau   Late Triassic   continental eclogite   Paleo-Tethys   continental subduction   plate tectonics   climate impact  

Late Triassic Continental Eclogite in the Central Tibetan Plateau Reveals Paleo-Tethys Continental Subduction Academic Background The Tibetan Plateau is one of the youngest and highest plateaus on Earth, and its formation is closely related to the closure of the Tethys Ocean and the collision of the Indian-Eurasian plates. The Paleo-Tethys Ocean wa...

Alkali-Carbonate Melts in the Cratonic Mantle Evidenced by a Wehrlite Xenolith from the Majuagaa Kimberlite, West Greenland

Earth Sciences, Geochemistry, Geology,
carbonate melts   cratonic mantle   wehrlite xenolith   mantle metasomatism   alkali-carbonates   kimberlite   mantle minerals  

Evidence of Alkali-Carbonate Melts in the Mantle Academic Background Carbonate melts play a crucial role in Earth’s deep carbon cycle, mantle melting, redox reactions, and the transport of highly incompatible elements. Although experimental studies, metasomatic transformations, and melt/fluid inclusions in mantle xenoliths, kimberlites, and diamond...

First Dating of an Early Chibanian (Middle Pleistocene) Glacial Overdeepening in the Alpine Foreland Using the 4He/U-Th Method

First Dating of an Early Chibanian (Middle Pleistocene) Glacial Overdeepening in the Alpine Foreland Using the 4He/U-Th Method

Earth Sciences, Geochemistry, Geology,
4He/U-Th method   glacial overdeepening   Middle Pleistocene   Alpine foreland   sediment dating  

First Dating of an Early Chibanian (Middle Pleistocene) Glacial Overdeepening in the Alpine Foreland Using the 4He/U-Th Method Academic Background Glacial overdeepenings are deep valleys formed by glacial erosion, typically filled with glacial sediments. These sediments record the history of glacial activity and are crucial for understanding the ex...