Results 61 to 70 of about 937 (213)

The regional evolution of a dryland fluvio‐aeolian and lacustrine succession in response to allocyclic forcing: insights from the Early Permian Cutler Group, Utah, USA

Sedimentology, Volume 73, Issue 2, Page 297-354, February 2026.
ABSTRACT Preserved allocyclic signatures in the rock record often reflect basin‐scale climatic variability and serve as key proxies for correlating ancient dryland successions. The notion of climate cyclicity, however, remains largely untested on regionally constrained, outcrop‐calibrated studies.
Oliver Button, Jack G. Connor, Ross P. Pettigrew, Ben A. Kilhams, John A. Howell   +4 more
wiley   +1 more source

Protracted intercontinental aridification preserved within the early Late Cretaceous strata of the Eastern Gobi Basin, Mongolia

Sedimentology, Volume 73, Issue 1, Page 147-185, January 2026.
ABSTRACT Mongolia's Eastern and Western Gobi Basins preserve a globally significant record of Cretaceous terrestrial vertebrates, yet their biostratigraphic correlations are complicated by a complex geological history. The Eastern Gobi Basin, a northeast‐southwest trending fault‐bounded rift system, includes several minor sub‐basins with distinct ...
Ryan T. Tucker, Michael Ryan King, Puntsag Delgerzaya, William J. Freimuth, Tsogtbaatar Chinzorig, Khishigjav Tsogtbaatar, Ryuji Takasaki, Mototaka Saneyoshi, Alfio Alessandro Chiarenza, Lindsay E. Zanno   +9 more
wiley   +1 more source

Experimental study on the formation of subaqueous barchan dunes in closed conduits

EPJ Web of Conferences, 2018
The present paper reports the formation of subaqueous barchan dunes by analyzing the temporal evolution of their main geometrical characteristics (width W, length L and horn lengths Lh).
Alvarez Carlos A., Franklin Erick
doaj   +1 more source

Analisis perubahan lahan gumuk pasir akibat perkembangan sarana dan prasarana budidaya udang (studi kasus Kecamatan Petanahan, Kabupaten Kebumen)

Region: Jurnal Pembangunan Wilayah dan Perencanaan Partisipatif, 2023
Gumuk pasir di Kecamatan Petanahan, Kabupaten Kebumen merupakan bagian dari gumuk pasir tipe barchan yang hanya terdapat dua di dunia, yaitu Indonesia dan Meksiko.
Alif Riyanto, Soedwiwahjono Soedwiwahjono, Lintang Suminar   +2 more
doaj   +1 more source

When Barchan Dunes Move Over Craters

Geophysical Research Letters, Volume 52, Issue 22, 28 November 2025.
Abstract We investigate the possible outcomes of a subaqueous barchan moving over a crater‐like depression in the bed. For that, we carried out experiments where we varied the dune size, crater and grain diameters, and flow velocities. We found that subaqueous barchans can be blocked, destroyed, or pass over craters, with transitional situations, and ...
P. V. R. Plácido, D. S. Borges, W. R. Assis, E. M. Franklin   +3 more
wiley   +1 more source

The dune size distribution and scaling relations of barchan dunefields [PDF]

, 2008
Barchan dunes emerge as a collective phenomena involving the generation of thousands of them in so called barchan dune fields. By measuring the size and position of dunes in Moroccan barchan dune fields, we find that these dunes tend to distribute ...
Lind, P.G., Orencio Durán, Duran Vinent, Orencio, Veit Schwämmle, Hans J. Herrmann, Schwämmle, V., Herrmann, Hans J., Pedro G. Lind, Durán, Orencio, Lind, Pedro G., Herrmann, H.J., Schwämmle, Veit   +11 more
core   +1 more source

Transient Hydrology in Amazonis Planitia (Mars) in the Aftermath of the Tooting Impact

Journal of Geophysical Research: Planets, Volume 130, Issue 11, November 2025.
Abstract Hydrological flows generated by meteoroid impact are still largely unexplored on Mars and may also have implications for Earth. We reconstructed the hydrological sequence initiated on Mars by a less than 3 Ma old meteoroid impact that formed the 28 km‐wide Tooting crater on Amazonis Planitia, an ice‐bearing region.
Fabio Vittorio De Blasio, Andrea Caccia, Giovanni Battista Crosta   +2 more
wiley   +1 more source

Barchan swarm dynamics from a Two-Flank Agent-Based Model [PDF]

Earth Surface Dynamics
In this work, we simulate barchan swarms using the Two-Flank Agent-Based Model and investigate how changes to model parameters and environmental drivers lead to different swarm dynamics.
D. T. Robson, D. T. Robson, A. C. W. Baas   +2 more
doaj   +1 more source

Groundwater Altered Water Balance and Plant Water Use Efficiency in Desert Ecosystems

Water Resources Research, Volume 61, Issue 11, November 2025.
Abstract Groundwater is an important water source in water‐limited desert ecosystem. Less attention has been paid to how the water balance and plant performance in such ecosystems vary with the presence or absence of groundwater. Appropriate replanting strategies play a pivotal role in preventing desertification.
Yicong Nan, Jianqiang Huo, Gaoling Han, Rui Hu, Yang Zhao, Yafeng Zhang, Xiao Lu, Yuanzhen Zhou, Jannis Groh, Zhishan Zhang   +9 more
wiley   +1 more source

Quantifying the Form‐Flow‐Saltation Dynamics of Aeolian Sand Ripples

Journal of Geophysical Research: Earth Surface, Volume 130, Issue 10, October 2025.
Abstract Ripples are the most fundamental and ubiquitous aeolian bedforms formed on sandy surfaces, but their small size and fast response times make them inherently difficult to measure. However, these attributes also make ripples excellent flow indicators, and they have been used extensively in planetary locations for this purpose.
Joanna M. Nield, Matthew C. Baddock, Giles F. S. Wiggs, Jim Best, Kenneth T. Christensen, Pauline Delorme, Andrew Valdez, Nathaniel R. Bristow, Martin H. T. Hipondoka, Daniel P. Goss, Natasha S. Wallum, Philippe Claudin   +11 more
wiley   +1 more source