Results 31 to 40 of about 5,752,310 (307)

Modeling the evolution of natural cliffs subject to weathering. 1, Limit analysis approach [PDF]

open access: yes, 2011
Retrogressive landsliding evolution of natural slopes subjected to weathering has been modeled by assuming Mohr-Coulomb material behavior and by using an analytical method.
G. B. Crosta   +3 more
core   +1 more source

Hydrogeology, chemical weathering, and soil formation

open access: yes, 2021
Explores soil as a nexus for water, chemicals, and biologically coupled nutrient cycling Soil is a narrow but critically important zone on Earth's surface.

core   +1 more source

Characteristics of interactions between black shale and water [PDF]

open access: yesE3S Web of Conferences, 2019
Some geological engineering problems are caused by weathering of black shale within dispersed sulfide minerals (mainly pyrite), in which some weathering products such as acid water and expansive sulfates play an important role.
Liao Xin   +5 more
doaj   +1 more source

Luminescence Sensitivity of Quartz From Rocks Under in situ Chemical Weathering Conditions

open access: yesFrontiers in Earth Science, 2022
In provenance investigation of Quaternary sediments, quartz luminescence sensitivity (QLS) has been employed as a technique. The weathering and influence on the earliest signs of luminescence sensitivity of sedimentary quartz require more consideration ...
Zheng Cao   +5 more
doaj   +1 more source

Evaluating the Effects of Sedimentary Cycles (Aeolian and Fluvial) on Chemical Weathering Indices in Rafsanjan Region, Southeast of Iran [PDF]

open access: yesDesert, 2022
Chemical indices are widely used for characterizing the degree of weathering. In this study, we focused on evaluating the capability of chemical weathering indices to distinguish the sequence of aeolian-fluvial sediments in an arid region of Iran.
I. Esfandiarpour-Boroujeni   +5 more
doaj   +1 more source

Chemical Weathering Intensity as a Reliable Indicator for Southwest Summer Monsoon Reconstruction: Evidence From Clay Minerals of Qionghai Lake Sediments Since the Last Glacial Maximum

open access: yesGeochemistry, Geophysics, Geosystems, 2023
Studying the evolution history of the southwest summer monsoon (SSM) throughout geological time, particularly during its strongest period in the Holocene, can improve our understanding of its variation and driving mechanisms, and even help predict future
Xiaoli Yu   +10 more
doaj   +1 more source

Molecular-Composition Analysis of Glass Chemical Composition Based on Time-Series and Clustering Methods

open access: yesMolecules, 2023
The weathering of ancient glass relics has long been a concerned. Therefore, a systematic and more comprehensive mathematical model with which to correctly judge the category of ancient glass products whose chemical composition changes due to weathering ...
Ying Zou
doaj   +1 more source

The Structural Characteristics and Chemical Composition of Serpentine Jade Weathering Rinds: Implications for the Formation Process

open access: yesCrystals, 2023
Weathering rind retains the greatest extent of the mineralogical and chemical composition information of the original mineral. Recently, we found some brownish-yellow or khaki serpentine jade weathering rinds with a thickness of 0.2–0.6 cm in Ji’an.
Shanna Xue   +3 more
doaj   +1 more source

Impact of nitrogenous fertilizers on carbonate dissolution in small agricultural catchments: Implications for weathering CO2 uptake at regional and global scales [PDF]

open access: yes, 2008
The goal of this study was to highlight the occurrence of an additional proton-promoted weathering pathway of carbonate rocks in agricultural areas where N-fertilizers are extensively spread, and to estimate its consequences on riverine alkalinity and ...
Probst, Jean-Luc   +2 more
core   +1 more source

Modeling the evolution of natural cliffs subject to weathering. 2, Discrete element approach [PDF]

open access: yes, 2011
The evolution of slopes subjected to weathering has been modeled by assuming Mohr-Coulomb behavior and by using a numerical approach based on the discrete element method (DEM).
G. B. Crosta   +3 more
core   +1 more source

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