Article
Geography, Physical
Xiaomei Li, Xiaokang Liu, Ping Yan, Miao Dong
Summary: This study systematically examined the major element characteristics of riparian sand dunes in northern China deserts. The findings revealed three primary zones with different degrees of chemical weathering. These classifications and their difference in chemical weathering may be influenced by the type of parent rock and the availability of materials. This research provides valuable insights into the classification of riparian dunes and the provenance of sediments in arid regions.
JOURNAL OF GEOGRAPHICAL SCIENCES
(2023)
Article
Geosciences, Multidisciplinary
Colin Chanteloube, Laurie Barrier, Reza Derakhshani, Cyril Gadal, Regis Braucher, Vincent Payet, Laetitia Leanni, Clement Narteau
Summary: This study analyzes the major landforms of the Lut Desert in Iran to provide a comprehensive understanding of aeolian systems over different time scales. The findings show comparable sediment discharges from long-term erosion and deposition as well as short-term and medium-term sand discharges derived from wind data and dune morphodynamics. This study quantifies the geomorphic controls of aeolian processes and provides insight into mass exchanges between continents and the atmosphere.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geography, Physical
Steven L. Forman, Zequn Wu, Logan Wiest, Liliana Marin, Connor Mayhack
Summary: The research focuses on the Western Red River and reveals the formation of three terrace levels and their partial burial by aeolian sediments. The analysis of sedimentary facies and dating of quartz grains shows two periods of fluvial aggradation at ca. 80 ka and 30 to 13 ka. The latest aggradation event, which formed the lowest terrace, coincides with a wet period during the Little Ice Age.
QUATERNARY RESEARCH
(2023)
Article
Environmental Sciences
Xiaopeng Jia, Haibing Wang, Yongshan Li
Summary: The study shows that the desert channel is crucial for interactions between aeolian and fluvial processes, which significantly impact erosion and sediment yield. The pattern of aeolian-fluvial interactions in this area demonstrates that aeolian processes can move dunes and narrow channels in dry seasons, whereas storm floods can cause hyper-erosion of dune-covered banks and widen channels during flood seasons.
ENVIRONMENTAL EARTH SCIENCES
(2021)
Article
Soil Science
Xiaolei Sun, Simon Matthias May, Wulf Amelung, Ni Tang, Dominik Brill, Franko Arenas-Diaz, Daniel Contreras, Barbara Fuentes, Roland Bol, Erwin Klumpp
Summary: This study investigates the formation and content of water-dispersible colloids (WDCs) in the Atacama Desert and finds that they are influenced by both topography and sediment age. The distribution of WDCs differs between younger and older fan sections, with younger sections having a higher concentration near shrubs and older sections exhibiting larger variations in WDC content. Overall, this research highlights the unique role of colloids as tracers of soil development processes.
Article
Water Resources
Dejin Wang, Wenzhi Zhao, Hong Zhou, Weicheng Luo, Hu Liu
Summary: Desert pavements play a vital role in maintaining ecological stability and promoting water cycling in arid regions. This study focused on the eco-hydrological processes of desert pavements in fluvial fan ecosystems, revealing significant differences in mosaic patterns and their effects on water infiltration and vegetation distribution. The findings highlight the importance of different surface mosaic patterns in maintaining vegetation stability and deepening our understanding of the eco-hydrological cycle in arid regions.
HYDROLOGICAL PROCESSES
(2021)
Article
Geosciences, Multidisciplinary
Mingrui Qiang, Thomas Stevens, Guoqiang Li, Ling Hu, Xiaowei Wang, Wenzhe Lang, Jie Chen
Summary: The research discovered complex aeolian deposition processes in the upwind regions of the modern Chinese Loess Plateau, including alternating layers of typical loess, sand, and sandy loess, as well as the expansion and contraction of proximal deserts. These processes are crucial for understanding the history of climate and dust changes.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Geology
Sonia Campos-Soto, M. Isabel Benito, Nigel P. Mountney, Piret Plink-Bjorklund, I Emma Quijada, Pablo Suarez-Gonzalez, Alberto Cobos
Summary: Deciphering the palaeoenvironmental and palaeoclimatic setting of ancient successions that include deposits typical of different climates can be challenging. This study in eastern Spain reveals the presence of sedimentary deposits from both arid to semiarid and humid to subhumid environments, indicating a seasonal climate controlled by monsoonal-type precipitation.
Article
Ecology
Randall J. Donohue, Karel Mokany, Tim R. McVicar, Anthony P. O'Grady
Summary: This article introduces the relative benchmarking framework, Compere, for monitoring management-driven impacts on ecosystem resources. It compares locations with similar biophysical properties to assess the effects of management activities. Using satellite data, the authors examined the impact of hydrocarbon extraction activities on land condition in a region in central Australia, finding that the establishment of well sites resulted in decreased land condition, but it recovered within 6 years.
Article
Geography, Physical
S. J. Gale, N. A. Wales
Summary: The Quaternary Botany Sands in southeast Australia are made up of inland aeolian sands and organic-rich swamp sediments. The development of the Botany dunefield was possible due to the location of receptive basins adjacent to exposed glacial-stage shelves and the presence of onshore winds during glacial stages.
Article
Geosciences, Multidisciplinary
Zhengyi Yao, Jianhua Xiao, Xiaosong Xie, Haijun Zhu, Jianjun Qu
Summary: This article investigates how to design economical and effective sand fences to protect solar energy parks in desert areas from the encroachment of moving sand and burial by migrating dunes. The study provides design suggestions for sand fences based on a combination of theoretical calculations and field measurements, and serves as a reference for designing sand fences in sandy areas.
Article
Geography, Physical
Lotem Robins, Noam Greenbaum, LuPeng Yu, Revital Bookman, Joel Roskin
Summary: Vegetated Linear Dunes (VLDs) are elongated dunes controlled by vegetation and wind, common in southern hemisphere drylands during the late Pleistocene. This study uses high-resolution Portable Optically Stimulated Luminescence (POSL) profiling to analyze a VLD section in Israel, revealing three distinct stratigraphic units and providing insight into periods of strong winds. The research demonstrates the sensitivity of POSL in detecting sedimentological and mineralogical differences within a dune profile, allowing correlation with OSL measurements.
Article
Geography, Physical
Hanlin Jiang, Xiaohong Sun, Zhengyi Yao, Xiaoyang Wu, Xinyi Liu, Zhenshan Li
Summary: This study focused on the dunes around Cuona Lake on the Qinghai-Tibetan Plateau, revealing that dune formation is mainly controlled by alternating processes of wind and water. Sediment is transported from the lake beach by westerly winds in the winter and spring, while rivers flowing in the opposite direction in the summer transport sand back to the lake beach, resulting in sand recycling in the landscape.
Article
Geography, Physical
Xiaocan Yu, Chenglin Liu, Chunlian Wang, Jiuyi Wang
Summary: This study identifies the Late Cretaceous aeolian desert system in the Jianshi Basin, South China, shaped by monsoonal climate and regional tectonism. The dominant prevailing winds were westerlies, with palaeowind reconstructions pointing to mid- and low-latitude subtropical highs influencing desert deposition.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Geography, Physical
Lotem Robins, Joel Roskin, Lupeng Yu, Revital Bookman, Noam Greenbaum
Summary: This study investigates the relationship between rivers and winds and their impact on landscape evolution at the intersection of the northwestern Negev desert dunefield margins and a drainage basin. The study reveals a lagged fluvial response to wind domination, as well as a sequence of sedimentary events caused by wind-dominated fluvial sedimentation. We also found that decreased wind power led to the stabilization of dune-dams, while increased fluvial activity resulted in the aggregation of sediments in water bodies.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Multidisciplinary Sciences
Tim J. Cohen, Laura Mogensen, Lee J. Arnold, Zhenhong Li, John D. Jansen, Jan-Hendrik May
Summary: This study reports on the topographic features of four lakes in the eastern and northern sides of the Flinders Ranges, South Australia, including shorelines, lake floors, and alluvial sills. The researchers used a combination of differential GPS (DGPS) and a hybrid digital elevation model (DEM) to measure these features. The results show that the lowest elevation of the lakes is considerably lower than previous estimates, and there are significant differences in elevation between the hybrid DEM and DGPS data for some lakes.
TRANSACTIONS OF THE ROYAL SOCIETY OF SOUTH AUSTRALIA
(2022)
Article
Geochemistry & Geophysics
J. D. Jansen, M. Sandiford, T. Fujioka, T. J. Cohen, M. Struck, S. P. Anderson, R. S. Anderson, K. Wilcken, D. L. Egholm
Summary: The study of the Finke River in central Australia reveals how the landscape has been shaped by tectonic and sub-lithospheric processes over geological timescales. Analysis of gravel samples suggests that the nuclide memory in sediment was erased over millions of years, contributing to the formation of the unique intertwined bedrock gorges in the Finke River.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geochemistry & Geophysics
Haidee Cadd, Bryce Sherborne-Higgins, Lorena Becerra-Valdivia, John Tibby, Cameron Barr, Matt Forbes, Tim J. Cohen, Jonathan Tyler, Marcus Vandergoes, Alexander Francke, Richard Lewis, Lee J. Arnold, Geraldine Jacobsen, Chris Marjo, Chris Turney
Summary: Wetland sediments are valuable archives of environmental change. Using pollen microfossils for radiocarbon dating can capture changes in atmospheric C-14. Comparisons of C-14 ages from pollen microfossils and other sediment fractions in Australian wetland sediment sequences show consistent ages for pollen but significant differences for Stable Polycyclic Aromatic Carbon (SPAC). Bayesian age-depth models highlight the strengths and weaknesses of different programs for chrono-stratigraphic records.
Article
Environmental Sciences
Talha A. Al-Dubai, Rashad A. Bantan, Ramadan H. Abu-Zied, Aaid G. Al-Zubieri, Brian G. Jones
Summary: This study collected contemporary sediment samples from the intertidal sabkha of Al-Kharrar Lagoon in Saudi Arabia to study the vertical distribution of foraminifers and their potential to predict former sea-level changes in the area. The study found that intertidal foraminifers can be used with high precision to assess past sea-level changes in the region.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
G. R. Bann, B. G. Jones, I. T. Graham
Summary: A study has found evidence of volcanic activity and igneous intrusion during the mid-Permian period in the Sydney Basin, which affected unconsolidated marine sediments. The volcanic activity may have originated from island volcanoes to the south or southeast, indicating widespread volcanic activity in the region during the glacial period.
AUSTRALIAN JOURNAL OF EARTH SCIENCES
(2022)
Article
Geosciences, Multidisciplinary
Jiawang Ge, Xiaoming Zhao, Mingxuan Tan, Haiteng Zhuo, Chengsheng Liu
Summary: This article systematically documents the sequence architecture and depositional evolution of the north-eastern shelf of the Pearl River Mouth Basin in the South China Sea. It analyzes seismic, well-logging, core data, and paleontological data to understand the stratigraphic-depositional patterns and interactive controls in the region. The article identifies different depositional systems and highlights the importance of tectonic subsidence and sediment supply in shaping the shelf's evolution.
MARINE AND PETROLEUM GEOLOGY
(2022)
Article
Geology
Megan L. Williams, Brian G. Jones
Summary: This study presents petrographic and geochemical data for the Lord Howe Volcanic Complex, revealing its tectonic affiliation and mantle source characteristics. The complex comprises transitional to alkali basalts and multiple shield building complexes, suggesting an intraplate tectonic setting. The mantle source is likely a laterally heterogeneous enriched garnet peridotite that has undergone partial melting and carbonatitic metasomatism. The findings shed light on the formation of intraplate volcanic fields and their origins from mantle plumes or subducted slabs stagnating at the mantle transition zone.
NEW ZEALAND JOURNAL OF GEOLOGY AND GEOPHYSICS
(2022)
Article
Geography, Physical
Tim J. Cohen, Lee J. Arnold, Fernando Gazquez, Jan-Hendrik May, Sam K. Marx, Nathan R. Jankowski, Allan R. Chivas, Adriana Garcia, Haidee Cadd, Adrian G. Parker, John D. Jansen, Xiao Fu, Nicolas Waldmann, Gerald C. Nanson, Brian G. Jones, Patricia Gadd
Summary: A study on the stratigraphy and chronology of Williams Point at the southern margin of Lake Eyre in Australia reveals revised ages for the lacustrine facies and provides evidence of the lake entering a playa phase. The study also identifies a reliable paleolake level indicator and suggests the extinction of the Genyornis newtoni occurred during a time of hydrological transformation. These findings offer new perspectives on the Quaternary history of Australia's arid zone.
QUATERNARY SCIENCE REVIEWS
(2022)
Article
Environmental Sciences
Ali A. Attiya, Brian G. Jones
Summary: This study examines the characteristics of smoke aerosols and air quality levels during the extensive bushfires in the Sydney area in November and December 2019. The research finds that the smoke originates from bushfires in the northwest, southwest, and northwest regions of Sydney, and is transported towards the east coast of Australia and the Pacific Ocean.
Article
Ecology
Mark Constantine, Alan N. N. Williams, Alexander Francke, Haidee Cadd, Matt Forbes, Tim J. J. Cohen, Xiaohong Zhu, Scott D. D. Mooney
Summary: Ethnographic observations suggest that Indigenous peoples in Australia historically used frequent, low-intensity fires in the landscape. This study presents a detailed analysis of charcoal and vegetation composition in eastern Australia over the past 135,000 to 0.5 ka BP, indicating a correlation between fire regimes and climate. The findings imply that Indigenous peoples have been engaging in cultural burning since the Holocene, potentially since the end of the Last Glacial Maximum.
Article
Soil Science
Natasha Phillips, Ian Moffat, Alex Mackay, Brian G. Jones
Summary: Despite the neglect of open-air archaeology in southern Africa's open landscape, the lack of geoarchaeological studies limits the understanding of the formation history. This paper provides a sedimentary context for Uitspankraal 7 (UPK7) in the Doring River Valley, identifying four artefact-bearing sedimentary units and the processes involved in their formation. This work contributes to the understanding of depositional and behavioral history in any context.
Article
Anthropology
Wanchese M. Saktura, Emma Rehn, Lauren Linnenlucke, Henry Munack, Rachel Wood, Fiona Petchey, Alexandru T. Codilean, Zenobia Jacobs, Tim J. Cohen, Alan N. Williams, Sean Ulm
Summary: Reliable chronological frameworks are crucial in archaeology for accurate interpretations of the past. Geochronology plays a vital role in interdisciplinary research by integrating diverse data onto a common timeline. Radiocarbon dating revolutionized Australian archaeology in the 1950s, and additional methods like thermoluminescence and optically stimulated luminescence expanded the study of the deep past. The SahulArch geochronological database focuses on providing reliable, precise, and reproducible ages, with 10,717 ages from 2,318 sites across the Sahul landmass.
AUSTRALIAN ARCHAEOLOGY
(2023)
Article
Geosciences, Multidisciplinary
Alexandru T. Codilean, Henry Munack, Wanchese M. Saktura, Tim J. Cohen, Zenobia Jacobs, Sean Ulm, Paul P. Hesse, Jakob Heyman, Katharina J. Peters, Alan N. Williams, Rosaria B. K. Saktura, Xue Rui, Kai Chishiro-Dennelly, Adhish Panta
Summary: OCTOPUS v.2 is a web-enabled database compliant with OGC standards, allowing users to access data related to erosional landscapes, depositional landforms, and archaeological records. The database includes cosmogenic radionuclide, luminescence, and radiocarbon age data, along with other geospatial data. Users can access the datasets via a web interface or GIS applications.
EARTH SYSTEM SCIENCE DATA
(2022)
Review
Multidisciplinary Sciences
S. K. Marx, J-H May, T. Cohen, B. S. Kamber, H. A. McGowan, L. Petherick
Summary: Kati Thanda-Lake Eyre is the largest global dust hotspot in the Southern Hemisphere, with satellite mapping showing that dust from the region is transported widely across the Tasman Sea, South Pacific Ocean, Southern Ocean, Pilbara/Kimberly, and Indian Ocean. While dust emissions from the southern section of the lake are minimal today, evidence from palaeo-aeolian sediments suggests major dust deflation episodes occurred during the last glacial cycle. Estimations suggest that Kati Thanda-Lake Eyre generated a significant portion of Australia's dust load over the past 80 to 40 thousand years. Despite 80 years of research, there is still much to learn about the climate-landscape interactions and dust generation in the arid heart of Australia.
TRANSACTIONS OF THE ROYAL SOCIETY OF SOUTH AUSTRALIA
(2022)
Article
Multidisciplinary Sciences
Jan-Hendrik May, S. M. May, S. K. Marx, T. J. Cohen, M. Schuster, A. Sims
Summary: This study examines recent shorelines associated with episodic filling events of modern ephemeral playa lakes. The results suggest that lithology and variations in wave energies are major controls on large-scale shoreline geomorphology. The presence or absence of shoreline features is an incomplete indicator of past lake levels, and wave-built landforms in ephemeral playa lake settings need to be considered threshold-related phenomena.
TRANSACTIONS OF THE ROYAL SOCIETY OF SOUTH AUSTRALIA
(2022)