Article
Geosciences, Multidisciplinary
Nisarg Makwana, S. P. Prizomwala, Archana Das, Binita Phartiyal, Aashima Sodhi, Chintan Vedpathak
Summary: The study reveals that the climate in the Indian subcontinent over the past 5000 years has fluctuated between wetter and drier phases, closely related to the rise and fall of the Harappan civilization. Analysis of a multi-proxy dataset shows a gradual strengthening of monsoonal conditions in the Banni Plains during the late Harappan phase.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Geosciences, Multidisciplinary
Sujay Bandyopadhyay, Subhajit Sinha, Anil Kumar, Pradeep Srivastava, Narayan Chandra Jana
Summary: The study focuses on the sedimentation patterns and timing of deposition in the alluvial plains of the Ajay River in the Lower Ganga plains. Two significant channel phases have been identified: Period-I (2.4-1.3 ka) and Period-II (800-200 years ago). Period-I is characterized by floodplain development and lateral migration, corresponding to the Roman Warm period. Period-II is characterized by flooding phenomena and channel aggradation, associated with significant shifts in the Indian Summer Monsoon.
GEOLOGICAL JOURNAL
(2023)
Article
Geology
Sandeep Panda, Anil Kumar, Pradeep Srivastava, Satyabrata Das, R. Jayangondaperumal, Kuldeep Prakash
Summary: This study provides a dated sedimentation framework for the western Assam lowland areas, revealing the characteristics of the relict fan surface and the multi-stage fan sedimentation process in the region through geomorphic mapping, lithofacies analysis, and geochemical provenance characterization.
SEDIMENTARY GEOLOGY
(2022)
Article
Geosciences, Multidisciplinary
Rachna Raj, Jayant K. Tripathi, Pankaj Kumar, Saurabh K. Singh, Binita Phartiyal, Anupam Sharma, Alpa Sridhar, Laxman Singh Chamyal
Summary: The multi-proxy study of a sediment core from a palaeochannel distributary of the Saraswati River basin in western India reconstructs the paleoclimatic and sea level fluctuations from the last deglaciation to the late Holocene. The core records indicate at least four episodes of marginal marine environment, including rises in sea level, dry climatic conditions, and warm and humid conditions.
JOURNAL OF ASIAN EARTH SCIENCES
(2021)
Article
Geosciences, Multidisciplinary
Imran Khan, Anjali Trivedi, Sheikh Nawaz Ali, Rameshwar Bali, S. J. Sangode, Oshin Deepak
Summary: Multiproxy analyses of sediment samples from a trench in the western Himalaya have provided insights into vegetation and climatic changes over the past 15.2 ka. The findings reveal significant variations in climate over time, but generally align with previous studies in the Himalayas.
JOURNAL OF ASIAN EARTH SCIENCES
(2022)
Article
Geography, Physical
Falguni Bhattacharya
Summary: The study on the relative sea level changes during the mid-Holocene along the southern Saurashtra coast reveals two high RSL events during the Mid-Holocene and Late-Holocene, attributed to global ice melt, strengthened Indian Summer Monsoon, and the Medieval Climate Anomaly. A decline in the Indian Summer Monsoon is observed around -4.2 ka, corresponding to a declining trend in the RSL, while uplifts around <= 4 ka likely contributed to the present-day coastal configuration.
QUATERNARY INTERNATIONAL
(2021)
Article
Multidisciplinary Sciences
Matthieu Giaime, Michal Artzy
Summary: This study provides new data on the changes in the Sea of Galilee level and highlights the importance of water level fluctuations in the habitation pattern.
SCIENTIFIC REPORTS
(2022)
Article
Geography, Physical
Nick Scroxton, Stephen J. Burns, David McGee, Laurie R. Godfrey, Lovasoa Ranivoharimanana, Peterson Faina, Benjamin H. Tiger
Summary: This study investigates the spatial and temporal variability of the tropical Indian Ocean hydroclimate during the Late Holocene. The results indicate that the dominant mode of variability in the region was a drying period between 3.97 and 3.76 kyr BP, with additional dry conditions lasting for 300 years in some records. This research is important for understanding the impacts of past climate changes on human societies.
QUATERNARY SCIENCE REVIEWS
(2023)
Article
Geography, Physical
Madhavi Dabhi, Adarsh Thakkar, Anil Chavan, Gaurav Chauhan, Rakesh Bhagora, Naveen Chauhan, Anil D. Shukla, Subhash Bhandari, M. G. Thakkar
Summary: The present study examines the mechanism, climate, and sea-level implications of coastal dune building activity in the eastern coast of Kori Creek (Gulf of Kachchh). The study indicates that the coastal dune sediment is dated to around 4,000 years ago and is similar in texture to inland dunes, suggesting simultaneous deposition. The geochemical data suggest a semi-arid to semi-humid climate with increasing maturity and weakening of the monsoon during deposition. The lowering of the sea level at the time of deposition exposed the Kachchh coastline, allowing the formation of dunes.
QUATERNARY INTERNATIONAL
(2022)
Article
Geography, Physical
Martin Seeliger, Anna Pint, Peter Frenzel, Nick Marriner, Giorgio Spada, Matteo Vacchi, Sait Basaran, Anca Dan, Friederike Seeger, Katharina Seeger, Thomas Schmidts, Helmut Brueckner
Summary: By combining various analyses, a new understanding of sea-level evolution in the northeastern Aegean Sea has been achieved, with a focus on a new typology of sea-level index points based on foraminiferal associations. The study confirms previous sea-level history in the region and highlights the significant role of geological structures in controlling millennial-scale sea-level evolution.
Article
Geosciences, Multidisciplinary
Prabhin Sukumaran, Dhananjay A. Sant, K. Krishnan, Govindan Rangarajan, Nathani Basavaiah, Jean-Luc Schwenninger
Summary: Analyses of a sedimentary sequence from the Narmada River in southwest India reveal rhythmic cycles of sediment facies representing floods during the late Holocene, influenced by the Indian monsoon and cyclones from the Bay of Bengal or Arabian Sea. Optically stimulated luminescence dating places the sequence in a climate transition phase between the Medieval Warm Period and Little Ice Age, and multi-proxy studies are used to study late Holocene flood events. Integration of sediment records with historic and instrumental data validates the findings and emphasizes the importance of high resolution multi-proxy studies for interpreting paleoflood records and climate signatures.
FRONTIERS IN EARTH SCIENCE
(2021)
Article
Geography, Physical
Stella J. Alexandroff, Paul G. Butler, Philip R. Hollyman, Bernd R. Schoene, James D. Scourse
Summary: The study highlights the importance of the North Atlantic Ocean and adjacent shelf seas in global climate and the need for a network of highly resolved marine archives. Sclerochronology of bivalves has provided records of past climate variability. Analysis of Glycymeris glycymeris shells revealed similarities in growth season and temperature range between modern and fossil specimens, attributed to similar boundary conditions in the fourth millennium BP compared to today.
PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
(2021)
Article
Multidisciplinary Sciences
Tom Maltas, Vasif Sahoglu, Hayat Erkanal
Summary: The period around the mid-late Holocene transition in the eastern Mediterranean witnessed significant societal developments accompanied by a shift to arid climate conditions. The '4.2 ka event' is believed to have caused widespread societal collapse, but our stable isotope analysis of archaeobotanical remains from western Turkiye suggests that Bronze Age farmers adapted their agricultural production strategies to cope with the drying climate. They cultivated drought-tolerant cereals on drier fields and redirected water management towards pulses. However, we found no evidence of severe drought stress in cereals grown during the 4.2 ka event, suggesting alternative explanations for societal disruptions, such as the breakdown of trade networks.
SCIENTIFIC REPORTS
(2023)
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
Gang Li, Li Miao, Wen Yan
Summary: This study examines the evolution history and response of marine mud deposits on the north-western shelf of the South China Sea to various factors, such as river system, sea-level change, monsoon variations, and human activities. The results reveal differences in the evolution of mud deposits in shallow waters and on the middle shelf, as well as the influence of sediment fluxes, winter monsoons, and human activities on mud deposition.
FRONTIERS IN MARINE SCIENCE
(2022)