scholarly journals Sedimentary structure of inferred cyclic‐step bedforms in submarine volcaniclastic slope deposits, Cuatro Calas, south‐east Spain

Sedimentology ◽  
2020 ◽  
Author(s):  
Jan H. van den Berg ◽  
Jörg Lang
Keyword(s):  
Sedimentary Structure ◽  
Slope Deposits

Mapping slope deposits depth by means of cluster analysis: a comparative assessment

2016 ◽  
Vol 39 ◽  
pp. 47-50
Author(s):  
Tiziano Venturini ◽  
Emanuele Trefolini ◽  
Edeardo Patelli ◽  
Matteo Broggi ◽  
Giacomo Tuliani ◽  
...  
Keyword(s):  
Cluster Analysis ◽  
Comparative Assessment ◽  
Slope Deposits

Study on Sedimentary Characteristics of Zhang Jia Po Group, Gushi Hollow of Weihe Basin

2013 ◽  
Vol 772 ◽  
pp. 844-848
Author(s):  
Lin Zhang ◽  
Jian Chao Liu ◽  
Xing Yun Wang ◽  
Jian Feng Bai
Keyword(s):  
Shallow Lake ◽  
Facies Analysis ◽  
Sedimentary Facies ◽  
Sedimentary Structure ◽  
Deep Lake ◽  
Sedimentary Characteristics ◽  
Rock Types ◽  
Single Well ◽  
Weihe Basin ◽  
Sedimentary Microfacies

Through the paleontology, lithology combination data,For Weihe basin Gushi hollow Tertiary the Zhangjiapo group unified hierarchical total divided into seven sections. According to coring, logging data to study the rock types and sedimentary structure,Summed up the logging of various sedimentary microfacies facies, clear in the study area is a shallow lake - a deeper lake - deep lake - deeper lake - shallow lake cyclic sedimentation.For single well facies analysis of typical wells in the region, the establishment of even well profile, determine the small layer of sedimentary facies the planar distribution concluded sedimentary facies model.

Analysis of Sedimentary Facies Model - The Cretaceous Bottom Conglomerate of Xinjiang Junggar Basinludong Area as an Example

2014 ◽  
Vol 522-524 ◽  
pp. 1289-1292
Author(s):  
Bin Xiao ◽  
Jun Li ◽  
Yu Hua Fan
Keyword(s):  
System Analysis ◽  
Pattern Analysis ◽  
Facies Analysis ◽  
Sedimentary Facies ◽  
Theory Method ◽  
Sedimentary Structure ◽  
Deposition Pattern ◽  
Structure Feature ◽  
Analysis Phase ◽  
Basal Conglomerate

This paper aims to Cretaceous bottom conglomerate facies of Xinjiang Ludong area of China research to elucidate the deposition pattern analysis phase, as well as the use of methods. Methods first take logging combined with tectonic pattern and sedimentary background, division comparing in Ludong area of Cretaceous basal conglomerate unit. Secondly, the application of modern sedimentology theory, method, system analysis of lithologic characteristics of this area and sedimentary structure feature. According to the logging facies analysis, summarized the various sedimentary facies marks, distinguishing different sedimentary types, ultimately determine the sedimentary facies.

scholarly journals Monitoring infiltration and subsurface stormflow in layered slope deposits with 3D ERT and hydrometric measurements – the capillary barrier effect as crucial factor

2017 ◽  
Author(s):  
Rico Hübner ◽  
Thomas Günther ◽  
Katja Heller ◽  
Ursula Noell ◽  
Arno Kleber
Keyword(s):  
Water Flow ◽  
Water Movement ◽  
Basal Layer ◽  
Organic Layer ◽  
Barrier Effect ◽  
Capillary Barrier ◽  
Shallow Subsurface ◽  
Layered Slope ◽  
Slope Deposits ◽  
Flow Pathways

Abstract. Identifying principles of water movement in the shallow subsurface is crucial for adequate process-based hydrological models. Hillslopes are the essential interface for water movement in catchments. The shallow subsurface on slopes typically consist of different layers with varying characteristics. The aim of this study was to draw conclusion about the infiltration behaviour, to identify water flow pathways and derive general validity about the water movement on a hillslope with periglacial slope deposits (cover beds), where the layers differ in their sedimentological and hydrological properties. Especially the described varying influence of the basal layer (LB) as impeding layer on the one hand and as a remarkable pathway for rapid subsurface stormflow on the other. We used a time lapse 3D ERT approach combined with punctual hydrometric data to trace the spreading and the progression of an irrigation plume in layered slope deposits during two irrigation experiments. This multi-technical approach enables us to connect the high spatial resolution of the 3D ERT with the high temporal resolution of the hydrometric devices. Infiltration through the uppermost layer was dominated by preferential flow, whereas the water flow in the deeper layers was mainly matrix flow. Subsurface stormflow due to impeding characteristic of the underlying layer occurs in form of "organic layer interflow" and at the interface to the first basal layer (LB1). However, the main driving factor for subsurface stormflow is the formation of a capillary barrier at the interface to the second basal layer (LB2). The capillary barrier prevents water from entering the deeper layer under unsaturated conditions and diverts the seepage water according to the slope inclination. With higher saturation the capillary barrier breaks down and water reaches the highly conductive deeper layer. This highlights the importance of the capillary barrier effect for the prevention or activation of different flow pathways under variable hydrological conditions.

Sign in / Sign up

Export Citation Format

Share Document