Results 151 to 160 of about 36,123 (237)
Abstract Soils that contain swelling clay minerals (e.g., montmorillonite) expand and contract during wetting and drying, causing movement within the soil profile. This process, known as argilliturbation, can alter artefact distributions, destroy stratigraphy and complicate the interpretation of archaeological deposits.
Caroline Mather+11 more
wiley +1 more source
Magnetic and petrologic studies of sediment found above basalt in experimental Mohole core EM7 [PDF]
openalex +1 more source
High‐resolution LiDAR data with field validation of inferred southern Ontario ice stream terrains indicate that steady‐state ice streaming is difficult to reconcile with our observations. Rather, these new observations show strong evidence of significant fluvial scouring across the area in which meltwater sheet flow overtopped the landscape.
David R. Sharpe, Chris C. Smart
wiley +1 more source
Triangular Biotitic Phlogopite in Basalt from Mutsuré-jima and its Chemical Composition
Shukusuké KÔZU, Shizuo Tsurumi
openalex +2 more sources
Recent public releases of Light Detection and Ranging (LiDAR) data in south central British Columbia (BC), Canada have revealed several landforms resembling ‘murtoos’, previously identified across portions of Scandinavia. In this study, we investigate the morphology and sedimentology of these landforms, the first report of their kind associated with ...
Alexander D. Sodeman, Tracy A. Brennand
wiley +1 more source
Early Holocene jökulhlaup chronology and deglaciation dynamics in central Iceland
Glacial lake outburst floods (jökulhlaups) have occurred throughout the Quaternary in glaciated regions worldwide. Reconstructing flood chronology yields insight into deglaciation processes, environmental change and the role of extreme events in landscape evolution.
Greta H. Wells+4 more
wiley +1 more source
Oceanic Basalt Leads and the Age of the Earth [PDF]
V.M. Oversby, P. W. Gast
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Gljúfurárjökull, located on the Tröllaskagi Peninsula in northern Iceland, is a small glacier approximately 3.8 km in length. This study analyses the glacier's evolution through a combination of methods including: (i) geomorphological mapping, (ii) Cosmic‐Ray Exposure (CRE) dating, (iii) lichenometry and (iv) palaeoglacier reconstruction (volume ...
Nuria Andrés+14 more
wiley +1 more source
Petrology of the basalt cores from Midway atoll [PDF]
Gordon A. Macdonald
openalex +1 more source