Results 51 to 60 of about 4,918,557 (342)

Elemental data for Gonghai Lake sediments show significant effects of human activities on weathering processes after 1550 CE

Frontiers in Earth Science, 2023
The international Anthropocene Working Group has recognized the mid-20th centrury (ca. 1950 CE) as the onset of the Anthropocene, but human activities in China altered the land cover and influenced weathering processes much earlier.
Hong Jiang, Hong Jiang, Hong Jiang, Yongming Han, Yongming Han, Yongming Han, Yongming Han, Yalan Tang, Yalan Tang, Yalan Tang, Huimin Fan, Bo Liu, Richard Arimoto   +12 more
doaj   +1 more source

Dating climatic change in hot deserts using desert varnish on meteorite finds [PDF]

, 2003
A thin coating of desert varnish occurs on Forrest 009 and Nurina 004, both equilibrated ordinary chondrite (L6) finds from the Nullarbor Plain, Australia.
Bland, P.A., Lee, M.R.
core   +1 more source

Chemical weathering records in Yungang Formation, North China: implications for stone heritage conservation

Frontiers in Earth Science
The Yungang Grottoes located in Datong area, North China, have experienced extensive surface and structural damage. Previous studies have recognized the importance of temperature and water during weathering, but the quantitative evaluation on both the ...
Xin Huang, Xin Huang, Feng Guo, Feng Guo, Feng Guo, Liang Zhao, Liang Zhao, Feng Zhang, Feng Zhang   +8 more
doaj   +1 more source

Topographic and Climatic Control on Chemical Weathering of Mountainous Riverine Sediments of Hainan Island, South China Sea

Frontiers in Earth Science, 2022
Hainan Island, the largest island in the northwestern South China Sea (SCS), is characterized by many tropical mountainous rivers that flow into the SCS.
Fangjian Xu, Fangjian Xu, Bangqi Hu, Bangqi Hu, Jingtao Zhao, Xiting Liu, Ruyong Cui, Xue Ding, Xue Ding, Guifeng Wang, Jianping Huang   +10 more
doaj   +1 more source

Prediction of Glass Chemical Composition and Type Identification Based on Machine Learning Algorithms

Applied Sciences
Ancient glass artifacts were susceptible to weathering from the environment, causing changes in their chemical composition, which pose significant obstacles to the identification of glass products.
Ziwei Chen, Yang Xu, Chao Zhang, Min Tang   +3 more
doaj   +1 more source

Major ion chemistry of the Teesta River in Sikkim Himalaya, India: Chemical weathering and assessment of water quality

Journal of Hydrology: Regional Studies, 2019
Study Region Teesta River of Eastern Himalayas, India. Study Focus This article addresses the mechanisms of weathering in the Teesta River, for the first time based on the original data of major ions.
Tenzin Tsering, M. Wahed, S. Iftekhar, M. Sillanpää   +3 more
semanticscholar   +1 more source

Harnessing Fungal Biowelding for Constructing Mycelium‐Engineered Materials

Advanced Engineering Materials, EarlyView.
Mycelium‐bound composites (MBCs) offer low‐carbon alternatives for construction, yet interfacial bonding remains a critical challenge. This review examines fungal biowelding as a biocompatible adhesive, elucidating mycelium‐mediated interfacial mechanisms and their role in material assembly. Strategies to optimize biowelding are discussed, highlighting
Xue Brenda Bai, Xinrui Sarah Niu, Zhao Qin   +2 more
wiley   +1 more source

Impact of grain size and rock composition on simulated rock weathering [PDF]

Earth Surface Dynamics, 2018
Both chemical and mechanical processes act together to control the weathering rate of rocks. In rocks with micrometer size grains, enhanced dissolution at grain boundaries has been observed to cause the mechanical detachment of particles.
Y. Israeli, S. Emmanuel
doaj   +1 more source

The Influences of Climatic and Lithological Factors on Weathering of Sediments in Humid Badland Areas

Frontiers in Earth Science, 2022
Climate variables including temperature, rainfall intensity, rainfall acidity, and lithological properties are among the most important factors affecting rock weathering.
Chunxia Xie, Nevena Antić, Estela Nadal-Romero, Luobin Yan, Tomislav Tosti, Svetlana Djogo Mračević, Xinjun Tu, Milica Kašanin-Grubin   +7 more
doaj   +1 more source

Chemical weathering of the volcanic soils of Isla Santa Cruz (Galápagos Islands, Ecuador) [PDF]

, 2014
We present a study on weathering of volcanic soils using 43 profiles (131 horizons) sampled in Santa Cruz Island (Galapagos Islands). Several weathering indices, based on chemical composition, are used. Since the geological material is highly homogeneous
Ferro, C, Martínez-Cortízas, A, Rodríguez-Lado, L, Stoops, Georges, Taboada, T   +4 more
core   +1 more source