Article
Geography, Physical
Alfonso Benito-Calvo, Davinia Moreno, Toshiyuki Fujioka, Gloria I. L. Lopez, Fidel Martin-Gonz Martin-Gonzalez, Adrian Martinez-Fernandez, Isabel Hernando-Alonso, Theodoros Karampaglidis, Jose Maria Bermudez de Castro, Francisco Gutierrez
Summary: This paper assesses the long-term downcutting pattern and driving mechanisms of the Upper Ebro River, and reconstructs the valley incision process using river terraces. The study reveals a long-term deceleration in incision rates and suggests that climate change alone cannot explain the observed pattern. Instead, the decrease in incision rates is attributed to base level lowering effects caused by the opening of the Ebro Cenozoic Basin.
GLOBAL AND PLANETARY CHANGE
(2022)
Article
Geography, Physical
Willem Viveen, Jorge Sanjurjo-Sanchez, Patrice Baby, Maria del Rosario Gonzalez-Moradas
Summary: The study investigated three factors influencing late Quaternary fluvial incision in the northeastern Peruvian Subandes, including changes in base level, sediment load:discharge ratio controlled by climate cycles, and tectonic uplift. Analyzing river terraces revealed different incision patterns in various parts of the basin. The data showed continuous incision from 18 ± 1.4 ka to 10.3 ± 0.7 ka and identified factors like climate change and tectonic activity affecting the incision rates.
GLOBAL AND PLANETARY CHANGE
(2021)
Article
Geography, Physical
Isaac Salem A. A. Bezerra, Afonso C. R. Nogueira, Marcelo B. Motta, Andre O. Sawakuchi, Thays D. Mineli, Arnaldo de Q. Silva, Antonio G. Silva Jr, Fabio H. G. Domingos, Giovanni A. T. Mata, Felipe J. Lima, Silvio R. L. Rike
Summary: This study analyzes the fluvial deposits associated with the Amazon River in central-eastern Amazonia and improves the chronostratigraphic framework of the region through geomorphological and sedimentary facies analyses, age dating, and sediment provenance data. The results show that the Amazon River has gradually eroded the valley in central-eastern Amazonia since the Late Miocene, forming abandoned fluvial terraces and an active floodplain.
Article
Geography, Physical
Zhongyun Li, Ke Zhang, Hao Liang, Zhen Chen, Zhanwu Ma, Jianguo Xiong, Ping Huang
Summary: The investigation of fluvial terraces in the Jinshaan Gorge of the Yellow River provides valuable insights into the origin and evolution of large rivers. Through the analysis of terrace profiles and the application of terrestrial cosmogenic nuclide dating, researchers have identified the timing of valley formation and incision processes. The results suggest that climate aridification and tectonic uplift played major roles in terrace aggradation and incision, respectively.
Article
Geography, Physical
Jesse R. Zondervan, Martin Stokes, Matt W. Telfer, Sarah J. Boulton, Anne E. Mather, Jan-Pieter Buylaert, Mayank Jain, Andrew S. Murray, Mhamed A. Belfoul
Summary: This study presents a conceptual model of punctuated river incision and strath terrace formation and provides recommendations for geochmnological sampling and interpretation. The researchers demonstrate the importance of multiple sampling locations and burial dates in extracting reliable climatic signals from strath terrace records.
Article
Geosciences, Multidisciplinary
C. M. Darvill, B. Menounos, B. M. Goehring, A. J. Lesnek
Summary: This study reports 20 Be-10 exposure ages from glacial erratics and bedrock on the west coast of British Columbia, Canada, contributing to the existing chronologies of Cordilleran Ice Sheet retreat along approximately 600 km of coastal North America. The data show that the western ice limit reached the present coast by 18-16 ka then slowed its retreat for around 4,000 years until 14-13 ka. The initial retreat is attributed to destabilization and grounding line retreat caused by rising sea level and/or ocean warming in the northern Pacific. Despite increasing temperatures, the subsequent stability of the ice sheet at the present coastal margin is likely due to the transition from marine to terrestrial margins.
GEOPHYSICAL RESEARCH LETTERS
(2022)
Article
Geography, Physical
Johan Kleman, Martina Hattestrand, Ingmar Borgstrom, Derek Fabel, Frank Preusser
Summary: Studies have challenged previous assumptions of continuous ice cover in the core area of the Fennoscandian Ice Sheet during the Pleistocene, with evidence suggesting ice-free conditions in central Scandinavia from around 55 ka to about 35 ka.
QUATERNARY SCIENCE REVIEWS
(2021)
Article
Engineering, Geological
Yulong Cui, Jianhui Deng, Wanyu Hu, Chong Xu, Hua Ge, Jinbing Wei, Jun Zheng
Summary: The study determined the age of the Mahu giant landslide, revealing that it was formed by two major events with error weighted mean ages. This provides a basis for understanding the causes of the landslide and suggests that regional fault activity and earthquake risk can be analyzed from the perspective of landslide science.
ENGINEERING GEOLOGY
(2021)
Article
Geosciences, Multidisciplinary
Partha Sarathi Jena, Ravi Bhushan, Shubhra Sharma, Ankur J. Dabhi, Shivam Ajay, Harsh Raj, Navin Juyal
Summary: Terrestrial cosmogenic nuclide (TCN) dating and optically stimulated luminescence (OSL) dating have provided insights into the late Quaternary glacial activity in the NW Himalaya. The results suggest that glaciers in this region were influenced by temperature and moisture changes associated with the Indian Summer Monsoon (ISM) and Mid-latitude Westerlies (MLW) climate systems. The ages obtained from different geological features indicate that glacial advances during MIS-2 were driven by enhanced westerly precipitation and reduced north hemispheric insolation, while non-glacial events and denudational processes may have influenced the age distributions of certain landforms.
JOURNAL OF GEOPHYSICAL RESEARCH-EARTH SURFACE
(2023)
Article
Geography, Physical
Yu Liu, Lu Sun, Yan Ma, Sheng Xu, Ping Liu, Shijie Wang, Weijun Luo
Summary: This study presents radiometric dating of three late Cenozoic sedimentary units in the Linxia Basin using cosmogenic 26Al/10Be and 10Be/21Ne burial methods. The results provide accurate ages for these units and correct previous misinterpretations, contributing to a better understanding of the Himalayan movement and mammalian evolution in the Linxia Basin.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2023)
Article
Engineering, Geological
Jan Lenart, Martin Kasing, Tomas Panek, Regis Braucher, Frantisek Kuda
Summary: This research investigates the slow-moving rockslide phenomenon in the Thaya River canyon, Central Europe. By combining geomorphological research with geological structure analysis and terrestrial cosmogenic nuclide dating, it is found that the rockslide developed gradually over time and left long-lasting topographic features.
Article
Engineering, Geological
Jan S. Ronning, Martina Bohme, Ola Fredin, Louise Hansen, Reginald L. Hermanns, Frode Ofstad, Ivanna M. Penna, Arne Solli, Jan Host
Summary: The radon problem in Kinsarvik, Ullensvang municipality in Western Norway is one of the most severe in the world, with average annual indoor radon concentrations of 4340 Bq/m3 in over 100 affected houses. New geological knowledge and LIDAR data suggest that the deposit in Kinsarvik may be a rock-avalanche deposit rather than an ice-marginal moraine, and the presence of uranium-bearing rocks contributes to the radon emissions.
ENGINEERING GEOLOGY
(2023)
Article
Geochemistry & Geophysics
Xiaofei Hu, Jiakun Wu, Zhenling Wen, Jiaxin Zhang, Qiming Zhao, Baotian Pan
Summary: In an active thrust-fold belt, the evolution of drainage patterns plays a significant role in surface erosion and sedimentary sequences. This study focuses on the Yumu Shan range and reveals the transition from a transverse river to a longitudinal river, proposing a conceptual model for the drainage evolution in active fold-thrust belts.
EARTH AND PLANETARY SCIENCE LETTERS
(2022)
Article
Geography, Physical
Jose Luis Pena-Monne, Pedro Proenca Cunha, Maria Marta Sampietro-Vattuone, David R. Bridgland, Andrew S. Murray, Jan-Pieter Buylaert
Summary: This study focused on the well-exposed terrace deposits of the Guadalaviar and Turia rivers, providing insights into the genetic connection between river-terrace sediments and slope accumulations. New Optically Stimulated Luminescence (OSL) ages were obtained from these Quaternary deposits, revealing the chronological correlation of the glacial-interglacial cycles of the Pyrenees with marine isotope stages. The findings suggest a close relationship between fluvial terraces and slope deposits in a setting influenced by temperate to cold climates.
GLOBAL AND PLANETARY CHANGE
(2022)
Article
Geography, Physical
Caio Breda, Fabiano do Nascimento Pupim, Andre Oliveira Sawakuchi, Thays Desiree Mineli
Summary: Studies on the Upper and Middle Tiete River in southeast Brazil during the late Quaternary using geomorphological, sedimentological, and OSL dating techniques reveal the effects of climate and tectonic factors on alluvial aggradation and terraces formation. The evolution of the fluvial landscape is mainly influenced by climate-induced changes in water discharge.
Editorial Material
Geography, Physical
Phillip H. Larson, Ronald I. Dorn, Brian F. Gootee, Yeong Bae Seong
Summary: The development of geomorphic theory regarding fluvial-system reorganization and drainage basin evolution has been slow since the mid-twentieth century. Understanding the processes of drainage integration and transverse drainages is crucial. Four main processes contribute to drainage integration and transverse drainage establishment: antecedence, superimposition, piracy/capture, and overflow/spillover. This special issue aims to enhance our understanding of these processes and their implications in various settings.
Article
Geography, Physical
Hyun Hee Rhee, Min Kyung Lee, Yeong Bae Seong, Jae Il. Lee, Kyu-Cheul Yoo, Jamey Stutz, Byung Yong Yu
Summary: Understanding the history of Antarctic glaciation through ice core and marine sediment core studies reveals the ongoing lowering of the David glacier since the early Pleistocene, characterized by a cold-based regime with minimal denudation rate. The combination of terrestrial and marine cosmogenic data documents the glacial history driven by climatic changes, with limited glacial expansion during certain periods due to prevailing cold and arid climate.
QUATERNARY GEOCHRONOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Hyun Hee Rhee, Yeong Bae Seong, Min Kyung Lee, Ara Jeong, Chinmay Dash, Jae Il Lee, Kyu-Cheul Yoo, Byung Yong Yu
Summary: This study investigates the variations in authigenic Be-9 and Be-10 concentrations and Be-10/Be-9 ratios in different glacial settings in the Weddell and Ross seas, Antarctica. The results show that Weddell Sea surface sediments have the lowest Be-10 and highest Be-9 concentrations, indicating Be-9 enrichment from the recently collapsed Larsen Ice Shelf B and reduced Be-10 supply due to blockage by the un-deglaciated Larsen Ice Shelf C. The study also found that Be-10 deposition varies across the open marine Ross Sea, with higher Be-10/Be-9 ratios in the western Ross Sea and higher Be-10 concentrations in the eastern Ross Sea, correlating with higher sea ice concentrations and changes.
GEOSCIENCES JOURNAL
(2022)
Article
Geosciences, Multidisciplinary
Chinmay Dash, Rajasekhariah Shankar, Pitambar Pati, Jithin Jose, Yeong Bae Seong, Soumya Prakash Dhal, Busnur Rachotappa Manjunatha, Kizhur Sandeep
Summary: Core sediments from the Chilika Lagoon provide a record of local environmental changes and catchment processes in the Core Monsoon Zone of India. Variations in magnetic parameters indicate changes in the catchment induced by climate. The Early to Mid-Holocene experienced intensified summer monsoon and increased terrigenous input, while the Mid- to Late Holocene saw weaker monsoon rainfall and diminished terrigenous input, with an intermediate phase of strengthened monsoon around 2 to 1 ka B.P. Spectral analysis of magnetic susceptibility data shows periodicities consistent with other paleoclimatic proxies.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Environmental Sciences
Hyun-Hee Rhee, Yeong-Bae Seong, Ju-Sun Woo, Changhwan Oh, Byung-Yong Yu
Summary: This study investigates the Ricker Hills in the Transantarctic Mountains using in-situ cosmogenic-nuclide Be-10 surface exposure dating to reconstruct the paleo-glacial dynamics. The research reveals that the glaciers had been thicker in previous glacial periods and experienced the greatest lowering and retreat during the late Holocene.
JOURNAL OF MOUNTAIN SCIENCE
(2022)
Article
Geosciences, Multidisciplinary
Ara Jeong, Yeong Bae Seong, Brian F. Gootee, Byung Yong Yu, Suet Yi Cheung
Summary: Authigenic Be-10/Be-9 dating and Be-10 inventory methods are reliable chronological tools for dating oceanic sediments. However, previous studies have only applied these methods to relatively closed lake sediments. This study examined their applicability to the early-Pliocene Bouse Formation in the lower Colorado River corridor and found that the actual age of the Bouse Formation is younger than previously thought, with a mean age of 3.15 Ma. The measured Be-10 inventory was significantly lower than predicted, which may be due to surface erosion, insufficient Be-10 retention, or inaccurate estimation of Be-10 inheritance.
Article
Geography, Physical
Dong-Eun Kim, Yeong Bae Seong, John Weber, Byung Yong Yu
Summary: Passive continental margins are characterized by high topography and distinct features such as steep escarpments. However, the processes and rates of landscape change in these regions are poorly understood. This study used Be-10 denudation rates and topographic analysis to quantify landscape change along the western flank of the Taebaek Mountain Range in Korea. The results revealed spatial variations in denudation rates and geomorphic response, which can be attributed to intense frost weathering rather than lithological control.
GEOGRAFISKA ANNALER SERIES A-PHYSICAL GEOGRAPHY
(2022)
Article
Geosciences, Multidisciplinary
Chinmay Dash, Soumya Prakash Dhal, Pitambar Pati, Rajesh Agnihotri, Anjum Farooqui, Yeong Bae Seong
Summary: A sediment record from Chilika Lagoon in India reveals that climate change affects denudation and weathering rates. The presence of mangrove and associated assemblages suggests a backwater estuarine environment between 7.8 and 6 ka B.P., indicating a warm climate and strengthened monsoon. The dominance of C-4 photosynthesizing plants and lower sea levels after 5 ka B.P. indicate arid conditions.
Article
Geography, Physical
Sangmin Ha, Yeong Bae Seong, Moon Son
Summary: The NNW-striking Mongolian Altai is a Late Cenozoic dextral strike-slip deformation belt affected by the collision between India and Eurasia. This study reveals the deformation patterns and Quaternary slip rates of two range-bounding faults using surface exposure dating, radiocarbon dating, and paleoseismic trenching. The results suggest strain partitioning on the faults of the Tsambagarav Massif.
EARTH SURFACE PROCESSES AND LANDFORMS
(2023)
Article
Geology
Dong-Eun Kim, John Weber, Yeong Bae Seong, Katy Reminga-DeYoung, Byung Yong Yu
Summary: The origin of high topography in intraplate settings is explained through a study of the St. Francois Mountains. The research reveals that streams draining granite and rhyolite erode more easily, creating significant relief. The results support a model of surface uplift driven by differential density and erosion in the igneous core.
Article
Geochemistry & Geophysics
Ji Young Shin, Wonnyon Kim, Yeong-Bae Seong, Liao Chang
Summary: The understanding of past environmental changes in the western North Pacific is limited due to the lack of robust chronology for carbonate-lacking pelagic clay sediments. This study presents a new magnetic stratigraphy based on paleomagnetic, rock magnetic, and microscopic results of sediments in the northern Mariana Basin, revealing the main sources of paleomagnetic signals and their efficiency in recording geomagnetic intensity. The results improve the understanding of the remanence recording processes in carbonate-poor deep-sea clays and demonstrate the value of magnetic stratigraphy as a chronology tool in the western North Pacific region.
JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH
(2023)
Article
Environmental Sciences
Ara Jeong, Yeong Bae Seong, Ronald I. Dorn, Byung Yong Yu
Summary: Langbein and Schumm (1958) connected precipitation to erosion using a curve that has been widely used in earth science textbooks for over six decades. Recent research in the Sonoran Desert in Arizona, USA, supports the longstanding hypothesis of increased erosion from arid to semiarid regions, showing higher denudation rates along an elevation-precipitation gradient.
PHYSICAL GEOGRAPHY
(2023)
Article
Geography, Physical
Purevmaa Khandsuren, Yeong Bae Seong, Hyun Hee Rhee, Cho-Hee Lee, Mehmet Akif Sarikaya, Jeong-Sik Oh, Khadbaatar Sandag, Byung Yong Yu
Summary: This study reveals the asynchronous response of two paleoglaciers in southwestern Mongolia to local topoclimatic factors. The north-south aspect contrast influences the changes in insolation and melt, resulting in local asynchrony in glacial dynamics. The timing of glacier culmination is consistent within +/- 1 sigma of the Be-10 exposure age results.
Article
Geology
Dong-Eun Kim, John Weber, Yeong Bae Seong, Katy Reminga-DeYoung, Byung Yong Yu
Summary: This article investigates the origin of high topography in an intraplate setting. By studying erosion rates and geomorphic indices, as well as using a contour model established with a geographic information system, it is found that erosion rates are higher in the granite and rhyolite areas compared to the sedimentary rock areas. Results from bedrock rivers indicate that incision rates in the Late Quaternary are ten times higher than catchment-wide denudation rates. These findings support the conclusion that surface uplift driven by differential density and erosion in the igneous core has created significant topography and relief in this intraplate setting.
Article
Multidisciplinary Sciences
Qing Yan, Lewis A. Owen, Chuncheng Guo, Zhongshi Zhang, Jinzhe Zhang, Huijun Wang
Summary: This study examines the extent of glaciations during MIS 3 and MIS 2 across the Tian Shan region. The results show that MIS 2 had more extensive glaciations, largely due to enhanced summer cooling. MIS 3 glaciations may have occurred in individual glacier catchments. The findings suggest synchronicity with the timing of maximum Northern Hemisphere ice sheets during the last glacial.
FUNDAMENTAL RESEARCH
(2023)
Article
Geography, Physical
A. Securo, C. Del Gobbo, L. Rettig, S. Pillon, A. De Luca, D. Fontana, E. Benedetti Fasil, R. R. Colucci
Summary: Small glaciers in temperate mountain regions have experienced significant reduction and unprecedented melt rates in recent years. Some glaciers have transitioned from clean ice to debris-covered or even rock glaciers. This study examines the surface elevation change of the Popera Alto glacier in the Sesto Dolomites using LiDAR and Structure from Motion surveys, and analyzes its evolution in terms of surface cover and geomorphic processes. The glacier has lost an average of 0.35 m water equivalent per year over the past 16 years, with active modification of its surface cover by geomorphic processes. The role of debris and local topography feedback has allowed the resilience of the glacier, leading to a marked difference between the current environmental equilibrium line altitude (envELA) and the effective ELA (effELA) of the glacier.
Article
Geography, Physical
Zhenzhen Yan, Yaolin Shi, Lili Kang, Xiangtao Fan
Summary: This study proposes a quantitative regional deformation model based on global positioning system (GPS) data to quantitatively analyze the morphological evolution of rivers in the Three Rivers Region. It finds that tectonic deformation phases significantly control regional landscape development and drainage features.
Article
Geography, Physical
Said Mukhtar Ahmad, Nitheshnirmal Sadhasivam, Mona Lisa, Luigi Lombardo, Mustafa Kemal Emil, Amira Zaki, Cees J. Van Westen, Islam Fadel, Hakan Tanyas
Summary: In this study, we investigated a large slow-moving landslide in Northern Pakistan, using Interferometric Synthetic Aperture Radar (InSAR) analysis. Our results showed that the crown of the landslide is moving faster than the surrounding regions, while the footslope experienced high deformations. We discussed the possible roles of meteorologic and anthropogenic factors in causing these deformations.
Article
Geography, Physical
Shuang Bian, Xibin Tan, Yiduo Liu, Suoya Fan, Junfeng Gong, Chao Zhou, Feng Shi, Michael A. Murphy
Summary: The Yarlung River's drainage divide is primarily moving north due to variations in precipitation across the Himalayas. The Gangdese drainage divide shows predominantly northward and southward migration, controlled by base-level rise and downstream influences. The presence of north-trending rifts separates the drainage divides into five zones, each with a distinct migration pattern.
Article
Geography, Physical
Joon-Young Park, Seok Yoon, Deuk-Hwan Lee, Seung-Rae Lee, Hwan-Hui Lim
Summary: This study developed a multiple-regression model to estimate site-specific average growth rates of debris flow events. The proposed model was validated through a case study and showed reasonable predictions of debris flow velocities and heights.
Article
Geography, Physical
Nicholas Reilly Mccarroll, Arnaud Temme
Summary: New geochronological data from hillslope boulder armor in the Flint Hills reveal the rates and timing of lateral retreat in the landscape. Surfaces of limestone boulders dating back to the Pleistocene era were found, and the ages of the hillslope armor increased with distance from the limestone bench. The estimated rate of lateral retreat in this landscape is 0.02 mm/yr.
Article
Geography, Physical
Xinbo Yao, Yuntao Tian
Summary: By studying the Longmenshan-Minshan drainage divide, we found that it has reached a dynamic steady state, indicating a balance between erosion and rock uplift. This study also reveals the process of formation and evolution of the divide and raises questions about the effectiveness of divide migration metrics.
Article
Geography, Physical
Junhui Yu, Pin Yan, Yanlin Wang, Guangjian Zhong, Changliang Chen
Summary: The seafloor mounds in the Chaoshan Depression of the South China Sea are identified as mud volcanoes, with fluids coming from underlying mud-fluid diapirs. The hydrocarbon gases feeding the mud volcanoes and diapirs are reasoned to originate from deep Mesozoic source rocks, indicating significant Mesozoic hydrocarbon potential in the Chaoshan Depression.
Article
Geography, Physical
Marius Huber, Luc Scholtes, Jerome Lave
Summary: This paper investigates the relationships between hillslope stability and fabric anisotropy of brittle rock materials and the implications for landscape shaping. It explores the different stability modes and movement characteristics of anisotropic materials, and demonstrates the significant control of material anisotropy on landscape shaping.
Article
Geography, Physical
Shubhra Sharma, Anil D. Shukla
Summary: The study investigates the relationship between glacial dynamics and lake sedimentation during the mid-Holocene climate variability in the Southern Zanskar ranges. It utilizes geomorphological disposition, elemental geochemistry, and optical chronology of relict lake sediment to reconstruct the pattern of minor glacier responses to climate variability. The results indicate six centennial to millennial-scale climatic phases, with warmer phases represented by decreased mineralogical fine grain flux and increased coarse grain flux. The study highlights the potential of relict lake sediment and para/peri-glacial landforms in understanding glacial dynamics and climate change during the Holocene.
Article
Geography, Physical
Jean-Francois Bernier, Sydney W. Meury, Patrick Lajeunesse
Summary: In this study, an approach combining various data and observation methods was proposed to improve the monitoring of landfast ice dynamics and its geomorphic impact on sedimentary systems. The results demonstrate the ability of the approach to accurately measure interannual variations in landfast ice and constrain geomorphic changes. Additionally, the study found a strong relationship between the severity of freezing seasons and the response of landfast ice to hydrometeorological events, with different geomorphic responses observed under different winter conditions.
Article
Geography, Physical
Heping Shu, Fanyu Zhang
Summary: This study investigates the relationship between susceptibility of soil-water hazards and human activities, geoheritage sites in the Loess Plateau, China. Landslide and gully erosion susceptibility were obtained using gradient boosting and support vector machines, and a hazard matrix was formed to couple landslide and gully erosion susceptibility. The study found different trends in the magnification times of soil-water hazards chain under different scenarios.
Article
Geography, Physical
Guangqiang Qian, Zhuanling Yang, Xuegang Xing, Zhibao Dong, Youyuan Guo
Summary: Granule ripples are aeolian landforms armored against erosion by coarse grains. This study investigates their seasonal morphological evolution and migration in the Sanlongsha Dune Field. The findings show that wind events, especially those exceeding the threshold velocities of coarse grains, significantly influence the morphodynamics of granule ripples. The study highlights the importance of considering the reptation and saltation of coarse grains in future research on granule ripples.