Academic literature on the topic 'Autogenic vs. allogenic forcing'

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Journal articles on the topic "Autogenic vs. allogenic forcing"

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Kane, I. A., W. D. McCaffrey, and O. J. Martinsen. "Allogenic vs. Autogenic Controls on Megaflute Formation." Journal of Sedimentary Research 79, no. 9 (2009): 643–51. http://dx.doi.org/10.2110/jsr.2009.072.

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Mouchené, Margaux, Peter van der Beek, Sébastien Carretier, and Frédéric Mouthereau. "Autogenic versus allogenic controls on the evolution of a coupled fluvial megafan–mountainous catchment system: numerical modelling and comparison with the Lannemezan megafan system (northern Pyrenees, France)." Earth Surface Dynamics 5, no. 1 (2017): 125–43. http://dx.doi.org/10.5194/esurf-5-125-2017.

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Abstract. Alluvial megafans are sensitive recorders of landscape evolution, controlled by both autogenic processes and allogenic forcing, and they are influenced by the coupled dynamics of the fan with its mountainous catchment. The Lannemezan megafan in the northern Pyrenean foreland was abandoned by its mountainous feeder stream during the Quaternary and subsequently incised, leaving a flight of alluvial terraces along the stream network. We use numerical models to explore the relative roles of autogenic processes and external forcing in the building, abandonment and incision of a foreland m
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Swanson, Travis, David Mohrig, Gary Kocurek, Benjamin T. Cardenas, and Matthew A. Wolinsky. "Preservation of Autogenic Processes and Allogenic Forcings in Set-Scale Aeolian Architecture I: Numerical Experiments." Journal of Sedimentary Research 89, no. 8 (2019): 728–40. http://dx.doi.org/10.2110/jsr.2019.42.

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Abstract A reduced-complexity aeolian dune stratification model is developed and applied to explore the role of dune morphodynamics in the creation of synthetic sections of aeolian stratigraphy originating from three sets of environmental forcing: 1) steady wind transport capacity, 2) steady bed aggradation and variable wind transport capacity, and 3) steady wind transport capacity and bed aggradation. In each scenario, the forward motion of initial, highly disorganized dunes generates a significant record exclusively containing autogenic signals that arise from early dune growth, deformation,
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Iwasaki, Toshiki, and Gary Parker. "The role of saltwater and waves in continental shelf formation with seaward migrating clinoform." Proceedings of the National Academy of Sciences 117, no. 3 (2020): 1266–73. http://dx.doi.org/10.1073/pnas.1909572117.

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Continental shelves have generally been interpreted as drowned coastal plains associated with the allogenic effect of sea-level variation. Here, without disputing this mechanism we describe an alternative autogenic mechanism for subaqueous shelf formation, driven by the presence of dissolved salt in seawater and surface waves. We use a numerical model describing flow hydrodynamics, sediment transport, and morphodynamics in order to do this. More specifically, we focus on two major aspects: 1) the role of saltwater in the subaqueous construction of continental shelves and 2) the transformation
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Belkhedim, Salim, Emilia Jarochowska, Miloud Benhamou, Abdelkrim Nemra, Radouane Sadji, and Axel Munnecke. "Interplay of Autogenic and Allogenic Processes On the Formation of Shallow Carbonate Cycles in a Synrift Setting (Lower Pliensbachian, Traras Mountains, NW Algeria)." Journal of Sedimentary Research 89, no. 8 (2019): 784–807. http://dx.doi.org/10.2110/jsr.2019.33.

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Abstract Meter-scale shallowing-upward cycles are recorded in many carbonate successions around the world. It is often difficult to recognize whether they represent autocycles, formed through intrinsic controls, or allocycles, resulting from orbital forcing or tectonic movements, or both. Here, we review the criteria used in the identification of the two types of cyclicity and apply them to two newly described lower Pliensbachian outcrops in the Traras Mountains, northwestern Algeria. Throughout the investigation of six sections, the deposits are suggested to have formed in intertidal–supratid
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Chan, Marjorie A., Stephen T. Hasiotis, and Judith Totman Parrish. "Hierarchical scales of soft-sediment deformation in erg deposits, Lower Jurassic Navajo Sandstone, Moab area, Utah, U.S.A." Journal of Sedimentary Research 90, no. 9 (2020): 1068–93. http://dx.doi.org/10.2110/jsr.2020.57.

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ABSTRACT Extensive soft-sediment deformation (SSD) of multiple expressions and scales record active and dynamic events and processes in erg deposits of the Lower Jurassic Navajo Sandstone near Moab, Utah. The erg deposits preserve depositional environments of eolian dune, interdune, fluvial, playa, lake, and spring. A large range of SSD features, from intact beds showing little deformation to pervasively disturbed beds, exist in many of these deposits. A simplified classification index captures the different scales of SSD in ascending order of deformation intensity: 1) mostly intact bedding wi
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ELLIS, Christopher J., and Brian J. COPPINS. "Reproductive strategy and the compositional dynamics of crustose lichen communities on aspen (Populus tremula L.) in Scotland." Lichenologist 39, no. 4 (2007): 377–91. http://dx.doi.org/10.1017/s0024282907006937.

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Abstract:Ecological studies are essential in understanding the response of crustose lichens to habitat dynamics and developing effective conservation strategy. While the combined response of individual crustose species within a community will be tremendously complex, the overall result of individualistic change can be simplified using trait-based analyses. In this paper we examine the response of crustose species with contrasting reproductive traits (predominantly sexual vs asexual reproduction) and which occur within a closely defined habitat (as epiphytes on the lower bole of aspen) to envir
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Nienhuis, Jaap H., Andrew D. Ashton, Albert J. Kettner, and Liviu Giosan. "Large-scale coastal and fluvial models constrain the late Holocene evolution of the Ebro Delta." Earth Surface Dynamics 5, no. 3 (2017): 585–603. http://dx.doi.org/10.5194/esurf-5-585-2017.

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Abstract. The distinctive plan-view shape of the Ebro Delta coast reveals a rich morphologic history. The degree to which the form and depositional history of the Ebro and other deltas represent autogenic (internal) dynamics or allogenic (external) forcing remains a prominent challenge for paleo-environmental reconstructions. Here we use simple coastal and fluvial morphodynamic models to quantify paleo-environmental changes affecting the Ebro Delta over the late Holocene. Our findings show that these models are able to broadly reproduce the Ebro Delta morphology, with simple fluvial and wave c
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Townsend, Kirk F., Michelle S. Nelson, Tammy M. Rittenour, and Joel L. Pederson. "Anatomy and evolution of a dynamic arroyo system, Kanab Creek, southern Utah, USA." GSA Bulletin 131, no. 11-12 (2019): 2094–109. http://dx.doi.org/10.1130/b35195.1.

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Abstract Many alluvial valleys in the American Southwest are entrenched within continuous arroyos, and stratigraphic evidence indicates that these fluvial systems experienced repeated periods of entrenchment and aggradation during the mid- to late-Holocene. Previous research suggests arroyo dynamics were regionally quasi-synchronous, implying that they were driven by allogenic forcing due to hydroclimatic fluctuations. However, several of these interpretations rely on records with limited age control and include distal correlations across the American Southwest. While hydroclimatic variability
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McArthur, Adam D., Julien Bailleul, Geoffroy Mahieux, Barbara Claussmann, Alex Wunderlich, and William D. McCaffrey. "Deformation–sedimentation feedback and the development of anomalously thick aggradational turbidite lobes: Outcrop and subsurface examples from the Hikurangi Margin, New Zealand." Journal of Sedimentary Research 91, no. 4 (2021): 362–89. http://dx.doi.org/10.2110/jsr.2020.013.

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ABSTRACT Concepts of the interaction between autogenic (e.g., flow process) and allogenic (e.g., tectonics) controls on sedimentation have advanced to a state that allows the controlling forces to be distinguished. Here we examine outcropping and subsurface Neogene deep-marine clastic systems that traversed the Hikurangi subduction margin via thrust-bounded trench-slope basins, providing an opportunity to examine the interplay of structural deformation and deep-marine sedimentation. Sedimentary logging and mapping of Miocene outcrops from the exhumed portion of the subduction wedge record heav
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Dissertations / Theses on the topic "Autogenic vs. allogenic forcing"

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Sahoo, Hiranya. "4D evolution of fluvial system and channel-fill architecture of the Cretaceous Blackhawk Formation, Wasatch Plateau, Utah: An integrated fluvial rock record analysis." ScholarWorks@UNO, 2013. http://scholarworks.uno.edu/td/1771.

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Using an integrated dataset comprising outcrop, core, GPR and LiDAR data, this study targets a high-quality outcrop "window" of the upper Cretaceous Blackhawk Formation in the eastern Wasatch Plateau in central Utah, spanning a fairly large spatial (~30 km2 area comprising eight contiguous, and vertical cliff faces) and temporal (~4 my) range. This research provides field-validation and -calibration of a wider range of fluvial heterogeneity: 1) large-scale heterogeneity (10’s of m vertically and 100’s of m laterally), 2) intermediate-scale heterogeneity (1’s of m vertically and 10’s of m later
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Book chapters on the topic "Autogenic vs. allogenic forcing"

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KIM, WONSUCK, ANDREW PETTER, KYLE STRAUB, and DAVID MOHRIG. "Investigating the autogenic process response to allogenic forcing." In From Depositional Systems to Sedimentary Successions on the Norwegian Continental Margin. John Wiley & Sons, Ltd, 2014. http://dx.doi.org/10.1002/9781118920435.ch5.

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