نتایج جستجو برای: progradation

تعداد نتایج: 209  

Journal: :Remote Sensing 2016
Nathalie Long Bastien Millescamps Benoît Guillot Frédéric Pouget Xavier Bertin

Unmanned Aerial Vehicles (UAVs) are being increasingly used to monitor topographic changes in coastal areas. Compared to Light Detection And Ranging (LiDAR) data or Terrestrial Laser Scanning data, this solution is low-cost and easy to use, while allowing the production of a Digital Surface Model (DSM) with a similar accuracy. Three campaigns were carried out within a three-month period at a la...

2010
Giulio Mariotti Sergio Fagherazzi

[1] A one-dimensional numerical model for the coupled long-term evolution of salt marshes and tidal flats is presented. The model framework includes tidal currents, wind waves, sediment erosion, and deposition, as well as the effect of vegetation on sediment dynamics. The model is used to explore the evolution of the marsh boundary under different scenarios of sediment supply and sea level rise...

Journal: :Anais da Academia Brasileira de Ciencias 2014
Renato P Lopes Sergio R Dillenburg Cesar L Schultz Jorge Ferigolo Ana Maria Ribeiro Jamil C Pereira Elizete C Holanda Vanessa G Pitana Leonardo Kerber

The coastal plain of the state of Rio Grande do Sul, in southern Brazil, includes four barrier-lagoon depositional systems formed by successive Quaternary sea-level highstands that were correlated to marine isotope stages (MIS) 11, 9, 5 and 1, despite the scarcity of absolute ages. This study describes a sea-level highstand older than MIS 5, based on the stratigraphy, ages and fossils of the sh...

2008
G. Vezzoli

In order to obtain a high-resolution Pleistocene stratigraphy, eleven continuously cored boreholes, 100 to 220m deep were drilled in the northern part of the Po Plain by Regione Lombardia in the last five years. Quantitative provenance analysis (QPA, Weltje and von Eynatten, 2004) of Pleistocene sands was carried out by using multivariate statistical analysis (principal component analysis, PCA,...

2004
Brian K. Horton Kurt N. Constenius Peter G. DeCelles

Figure 1. A: Map of Charleston-Nebo salient and northernmost Book Cliffs showing rock units, thrust faults (dashed where buried), key seismic coverage (gray lines), measured stratigraphic sections (1–7; 8 is location of additional Blackhawk sandstone samples), and wells. Rock units: KTs—Cretaceous–Tertiary strata (North Horn and younger formations), Kmv—Cretaceous Mesaverde Group (Blackhawk, Ca...

Journal: :Journal of African Earth Sciences 2021

A sedimentological investigation of Miocene deposits at the periphery Zagros foreland basin , Kurdistan Region, NE Iraq, reveals a cyclical arrangement carbonate-evaporite ramp facies . The study aims to provide rare insight into lateral variability microfacies and environments such systems' inner shoreline Between 10 40 depositional cycles are preserved, separated by flooding surface, recordin...

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