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Geomorphology Vignettes

These illustrated essays have been contributed by participants in the Teaching Geomorphology in the 21st Century workshop in 2008. The vignettes are drafts that are being written and revised by the participants and are not finished products.


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Natural tree death, forest harvest, changes in hillslope hydrology, and implications to slope stability
Adelaide vignette Johnson
Death of trees by either forest harvest or by natural forest decline may result in increases in soil saturation, flooding, and landslides. These geomorphic processes, potentially differing in frequency and ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes, Modeling/Physical Experiments, Environmental Science:Natural Hazards:Mass Wasting, Geoscience:Geology:Geomorphology:Landforms/Processes:Hillslopes, Mass Movement
Vignette Type: Process

Sediment Entrainment and Channel Lifetimes in Braided Streams
allen hunt
Braided streams are typically found on steep slopes (high energy environments) with an abundance of sediment. Their channels are constantly choking up with sediments and shifting. This gives rise to the concept of ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Modeling/Physical Experiments
Vignette Type: Process

The role of hydraulics in fine-grained sedimentation within river channels: an example from the Ovens River, Australia
Geoff Vietz
River channels contain sediment deposits such as bars and benches which provide important ecological habitat for fish, macroinvertebrates and riparian and aquatic vegetation. Bars and benches influence flow to ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Modeling/Physical Experiments
Vignette Type: Process

When a tree falls in the forest, does it make a soil?
Emmanuel Gabet
When a Tree Falls Over A tree, like most plants, sends roots down into soil and bedrock to absorb water and nutrients. The roots also anchor the tree to the ground and prevents it from tipping over. Strong wind ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Modeling/Physical Experiments, Landforms/Processes:Hillslopes, Geoscience:Geology:Geomorphology:Weathering/Soils, Landforms/Processes
Vignette Type: Process

Reconstructing the geomorphic history of a cave: a case study from Liang Bua, Indonesia
Kira Westaway
Liang Bua, a large cave situated 16 km from Ruteng in western Flores, Indonesia (Figure 1), was formed as a subterranean chamber over 600 ka. From this time to the present, a series of geomorphic events influenced ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Karst, Fluvial, Geoscience:Geology:Geomorphology:Landscape Evolution, Tectonic Geomorphology, Geoscience:Geology:Tectonics, Geomorphology:GIS/Mapping/Field Techniques, Landforms/Processes:Hillslopes, Geoscience:Geology:Geomorphology:Climate/Paleoclimate, Dating and Rates
Vignette Type: Stratigraphy, Process, Chronology

Establishing cave exposure using evidence from river deposits: a case study from Liang Bua, Indonesia
Kira Westaway
Liang Bua, in western Flores, Indonesia (Figure 1) is a large limestone chamber with a wide entrance and a cathedral-like atmosphere. It's name, meaning 'cool cave' explains its attraction as an ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Landforms/Processes, Landscape Evolution, Tectonic Geomorphology, Geoscience:Geology:Tectonics, Geomorphology:GIS/Mapping/Field Techniques, Landforms/Processes:Karst, Geoscience:Geology:Geomorphology:Dating and Rates
Vignette Type: Stratigraphy, Process, Chronology

Climate change in the dead heart of Australia
Joshua Larsen
Despite the absence of large-scale glaciation, the Australian continent has experienced substantial environmental change throughout the Quaternary period. This is especially pronounced in central Australia, where ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes, Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Landscape Evolution, Climate/Paleoclimate, Dating and Rates, Arid Region Geomorphology
Vignette Type: Stratigraphy, Chronology

Billabongs (waterholes), unique geomorphology and hydrology in action in arid Australia
Joshua Larsen
Much on the centre of Australia is an arid or semi-arid landscape, and the low average annual rainfalls make it difficult for the rivers to run and the lakes to fill. Some of the rivers that drain the centre of the ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes, Weathering/Soils, Geomorphology as applied to other disciplines, Climate/Paleoclimate, Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Arid Region Geomorphology
Vignette Type: Process

Landscape response in the California Coast Ranges to the stormy conditions of the Pleistocene to Holocene climatic transition
Antonio Garcia
Introduction: temporal scales, spatial scales, climate, and tectonics A long-standing problem in geomorphology is identifying the relative roles of climate and tectonism on landscape evolution. Here we examine the ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Landforms/Processes, Landscape Evolution, Tectonic Geomorphology, Geoscience:Geology:Tectonics, Geomorphology:Dating and Rates, Landforms/Processes:Hillslopes, Geoscience:Geology:Geomorphology:Climate/Paleoclimate
Vignette Type: Stratigraphy, Process, Chronology

Exploring the roles of discharge and bedload composition in strath terrace formation through a naturally occurring experiment in the California Coast Ranges
Antonio Garcia
Introduction Pancho Rico Creek is a tributary of the Salinas River that flows across an area of modestly high topography known as the Gabilan Mesa. The Gabilan Mesa is in the central Coast Ranges of California, ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial, Geoscience:Geology:Tectonics, Geomorphology:Landforms/Processes, Tectonic Geomorphology
Vignette Type: Stratigraphy, Process



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