Results 151 to 160 of about 2,948 (246)

Source‐to‐sink sediment transport reversals during glacial sea‐level lowstands sustain soil formation on pericoastal carbonate terrains

open access: yesSedimentology, Volume 73, Issue 5, Page 1892-1910, August 2026.
ABSTRACT Understanding the processes that drive soil formation is crucial for developing sustainable land‐use strategies, as changing land‐use practices and climate change exacerbate soil erosion. The formation of substantial arable soils on carbonate bedrock requires substantial dust accretion as the underlying bedrock lacks siliciclastic material. In
Daniel Palchan   +3 more
wiley   +1 more source

Quantitative geomorphic analysis to evaluate flood hazards [PDF]

open access: yes, 2005
The aim of this study is to evaluate flood hazards through the use of quantitative geomorphic methods, which were already applied to estimate mass movement hazards and accelerated erosion hazards in some Italian areas. The study area is the Fiume Ombrone
DELLA SETA, Marta   +2 more
core  

High‐Resolution 3‐D Lithospheric Structure of the Subducting Carnegie Ridge and the Ecuadorian Margin Imaged From Teleseismic Receiver Functions

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The Ecuadorian margin is a forearc‐arc system shaped by oceanic terrane accretion and Carnegie Ridge subduction, yet the accretion mechanism and ridge subduction extent remain poorly constrained. Using teleseismic P‐wave receiver functions from dense seismic arrays, we image velocity discontinuities within the overriding plate and subducting ...
Cong Li   +11 more
wiley   +1 more source

Geologic map index of Minnesota, 1st ed. [PDF]

open access: yes, 1979
1st ed.: 19 loose, folded index maps, part of the pdf.The principal maps covering the entire state are: 84 (gravity); i63 (bedrock hydrogeology); 164 (Quaternary hydrogeology); 174 (Quaternary geology); 197 (peat deposits); 236 (geomorphic regions ...
Dunlavy, Howard R.   +2 more
core  

Rapid Morphological Changes in the Intertidal Zone of the Ganges‐Brahmaputra Delta Revealed by SWOT Altimetry Mission

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Intertidal zones of the Ganges‐Brahmaputra (GB) delta are among the most active coastal environments worldwide, and quantifying their morphological evolution remains challenging due to rapid change and scarce in situ observations. This study presents a satellite‐based direct quantification of intertidal sediment volume change in the Meghna ...
Nushrat Yeasmin   +3 more
wiley   +1 more source

Extreme Events Reshape Flood Hazards Through Sediment‐Induced Channel Change in Southern Taiwan

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Extreme precipitation events can cause long‐lasting changes to river systems, altering flood hazards beyond the initial disaster. We investigate how Typhoon Morakot (2009) impacted flood inundation patterns across four river catchments in southern Taiwan.
B. Santos   +4 more
wiley   +1 more source

Fault Geometrical Control on Fault Slip: Experimental Validation of Theoretical Models

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Slip distribution along tectonic faults is recognized as highly heterogeneous across all spatial scales and is linked to various aspects of the earthquake cycle, such as aftershock density and stress‐drop variability. A key factor often considered to control slip heterogeneity is the fault geometry, which is typically nonplanar at various ...
Tom Gabrieli   +3 more
wiley   +1 more source

Substantial Accumulation of Chemically Oxidizable Organic Carbon in Continental Margin Sediments

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract The balance between organic carbon (OC) sequestration and oxidation regulates the oceanic carbon cycle, and OC reactivity determines its susceptibility to remineralization or long‐term burial. However, the stability of sedimentary OC on continental margins remains poorly understood.
Yufan Zhang   +5 more
wiley   +1 more source

Synchronous Advance of the Alpine Glaciation Across the Northern and Southern Tibetan Plateau During the Mid‐Pleistocene Transition

open access: yesGeophysical Research Letters, Volume 53, Issue 14, 28 July 2026.
Abstract Chronological studies of glacial sediments from the Shishapangma and Yarlung Tsangpo River valley indicate that Quaternary glaciation on the southern Tibetan Plateau commenced at ∼0.75–0.83 Ma. However, the oldest glacial deposits in the northern plateau are dated to only ∼0.46 Ma, markedly later than the Middle Pleistocene glacial ...
Chengying Liu   +5 more
wiley   +1 more source

Upgradient Storage Features Control Timing and Magnitude of Solute Export at Stream Outlets

open access: yesGeophysical Research Letters, Volume 53, Issue 13, 16 July 2026.
Abstract Concentration‐discharge (C‐Q) relations are used to infer water and solute storage and transport but are often informed by coarse‐temporal data. Here, we use high‐frequency and long‐term C‐Q datasets from two adjacent, but geologically and geomorphically distinct, watersheds in Colorado to evaluate how vertical and lateral flowpaths ...
Sara Warix   +6 more
wiley   +1 more source

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