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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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Holocene landscape evolution of alpine areas in the southern San Juan Mountains, Colorado
Brad Johnson, Appalachian State University
Alpine landscapes that were glaciated during the Last Glacial Maximum are filled with landforms which are often confusing and difficult to understand. Yet, many researchers are drawn to researching problems in ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:GIS/Mapping/Field Techniques, Landforms/Processes:Glacial/Periglacial, Mass Movement, Geoscience:Geology:Geomorphology:Landscape Evolution, Dating and Rates, Landforms/Processes, Climate/Paleoclimate
Vignette Type: Process, Chronology

Factors influencing the distribution of rock glaciers in Idaho
Brad Johnson, Appalachian State University
Rock glaciers are beautiful flowing lobes of rocky debris that look like glaciers (Figure 1). These amazing landforms form in many locations within alpine valleys including along valley floors, at the base of talus ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landscape Evolution, Landforms/Processes, Landforms/Processes:Glacial/Periglacial, Geoscience:Geology:Geomorphology:Climate/Paleoclimate
Vignette Type: Process

Persistence of effects of high sediment loading in a salmon-bearing river, northern California
Mary Ann Madej
Many rivers in the United States have been disturbed by increases in sediment loads from activities such as mining, grazing, agriculture, logging, and road construction. Too much sediment in rivers can diminish ...

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

What Do Landslides Have to Do with Carbon Budgets?
Mary Ann Madej
The development of carbon markets as one tool to reduce greenhouse gases and their role in global climate change has raised the interest of society in carbon sequestration and release. Much current research is now ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Weathering/Soils, Geomorphology as applied to other disciplines, Environmental Science:Natural Hazards:Mass Wasting, Geoscience:Geology:Geomorphology:Landforms/Processes:Mass Movement, Geoscience:Geology:Geomorphology:Landforms/Processes
Vignette Type: Process

Complex interactions between channel morphology and invasive riparian plants in Canyon de Chelly, Arizona
Daniel Cadol
Ephemeral channels in the semi-arid Colorado Plateau region are subject to a cyclic process of cutting and filling resulting from variation in precipitation patterns (eg. Leopold, 1976), variation in land cover ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Fluvial, Geoscience:Geology:Geomorphology:Arid Region Geomorphology, GIS/Mapping/Field Techniques
Vignette Type: Process

Transport, retention, and geomorphic role of wood in tropical headwater streams, Costa Rica
Daniel Cadol
The role of wood in shaping stream channels is an often overlooked component of the fluvial system. In forested catchments, wood is an integral part of the geomorphic and ecological function of streams. ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Climate/Paleoclimate, Landforms/Processes:Fluvial
Vignette Type: Process

Soil flowed over the slopes of KwaZulu Natal in South Africa about 30,000 years ago
arnaud temme
Several landscape processes cause the movement of soil over slopes. Erosion from overland water flow and sudden landsliding are among the best-known of these processes. Creep, the slow and depth-dependent movement ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Hillslopes, Geoscience:Geology:Geomorphology:Landscape Evolution, Climate/Paleoclimate, Landforms/Processes:Glacial/Periglacial
Vignette Type: Process, Stratigraphy

Beneath the surface of coastal lowlands: archives of mid- to late-Holocene subduction zone earthquakes
Harvey Kelsey
Introduction Coastal lowland marshes (Figure 1) are more than just muddy shorelines where your feet get stuck as you try to walk around. Geologically, coastal marshes are low-energy settings where fine-grained ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes:Coastal-zone, Geoscience:Geology:Geomorphology:Weathering/Soils, Geoscience:Geology:Tectonics, Geomorphology:Landforms/Processes, Tectonic Geomorphology
Vignette Type: Stratigraphy, Process, Chronology

Marine terraces in mid-latitude settings: the case of the Oregon USA coast
Harvey Kelsey
Marine terraces are terraced landforms that occur as elevated flats inboard of, and parallel to, coastlines. Outstanding examples of a stair-step landscape of marine terraces can be found in many places in the ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes, Tectonic Geomorphology, Geoscience:Geology:Tectonics, Geomorphology:Dating and Rates, Landforms/Processes:Coastal-zone, Geoscience:Geology:Geomorphology:Climate/Paleoclimate
Vignette Type: Process, Chronology

The Role of Microsites on Alpine Timberline Advance Associated with Climate Change
Adelaide vignette Johnson
Upward advance of timberlines, associated with climate warming, is occurring in the Pacific Northwest (PNW) as well as many other mountainous regions of the world. Timberline advance has gained recognition ...

Subject: Geomorphology: Geoscience:Geology:Geomorphology:Landforms/Processes, Geomorphology as applied to other disciplines
Vignette Type: Process



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