Results 141 to 150 of about 254,715 (432)
Underground Space, 2020 Subsurface stratigraphy is critical to the design, construction, and subsequent performance of geotechnical structures. However, in practice it is impossible to identify the stratigraphy of a subsurface geological domain with absolute certainty, due to ...
Xiangrong Wang
doaj
Simulation of muon radiography for monitoring CO$_2$ stored in a geological reservoir [PDF]
, 2015 Current methods of monitoring subsurface CO$_2$, such as repeat seismic surveys, are episodic and require highly skilled personnel to acquire the data. Simulations based on simplified models have previously shown that muon radiography could be automated to continuously monitor CO$_2$ injection and migration, in addition to reducing the overall cost of ...
arxiv +1 more source
Interglacial dust, ocean fertilisation and Neoproterozoic earth oxygenation
The Depositional Record, EarlyView.Mineral dust is an integral part of modern ocean nutrient supply. It is originated mainly in deserts and by glacial processes. Given the global scale of the Neoproterozoic glaciations, we suggest that mineral dust formed during snowball events were blown to oceans, sustaining life, promoting CO2 sequestration and contributing to the oxygenation of ...
Leandro G. DaSilva +2 more
wiley +1 more source
Autogenic Sedimentation in Clastic Stratigraphy
, 2017 Internally generated, or autogenic, terrestrial and marine sediment-transport dynamics can produce depositional patterns similar to those associated with climatic, tectonic, or sea level changes.
E. Hajek, K. Straub
semanticscholar +1 more source
Mixed clastic‐carbonate lake margin systems: An example from the Triassic of East Greenland
The Depositional Record, EarlyView.This study examines a rare example of a mixed clastic‐carbonate shore zone from the Late Triassic of East Greenland. Two facies models are proposed. The interaction of sediment supply and production are shown to be key factors in governing facies development and these are in turn predominantly controlled by lake‐level dynamics and lake margin ...
Steven D. Andrews, Li Guo
wiley +1 more source
The Depositional Record, EarlyView.In this study, sandstones of the Lower Jurassic Datta Formation (DF‐LJ) in the Salt and Trans‐Indus Ranges are investigated regarding composition, diagenesis, provenance and reservoir properties using petrography, scanning electron microscopy (SEM) and petrophysical analysis.
Salman Ahmed Khattak +7 more
wiley +1 more source
, 2012 This discussion paper, by a Working Group of INTIMATE (Integration of ice‐core, marine and terrestrial records) and the Subcommision on Quaternary Stratigraphy (SQS) of the International Commission on Stratigraphy (ICS), considers the prospects for a ...
M. Walker +9 more
semanticscholar +1 more source
The Depositional Record, EarlyView.This study introduces new transfer functions, developed using statistical modelling of air temperature reanalysis data and satellite observations for 1395 modern lakes, to translate proxy‐derived lake water temperatures into air temperatures for more accurate reconstructions.
Alexa Terrazas +4 more
wiley +1 more source
The Depositional Record, EarlyView.A new classification for inland freshwater palaeowetlands to be used in the field or core laboratory by sedimentologists, providing examples from the Guadix Basin (southern Spain). Abstract Present wetlands have proven to be delicate, biodiverse ecosystems, that are natural sinks for CO2 and act as good indicators for climate changes.
S. Pla‐Pueyo +1 more
wiley +1 more source
Earth and Space Science, Volume 9, Issue 12, December 2022., 2022 Abstract Extreme precipitation events may cause flooding, slope failure, erosion, deposition, and damage to infrastructure over a regional scale, but the impacts of these events are often difficult to fully characterize. Regional‐scale landscape change occurred during an extreme rain event in June 2012 in northeastern Minnesota.
S. B. DeLong +7 more
wiley +1 more source