unit 1 notes - novacentral.ca
... flat, domical shape, with a profile much like that of a warrior's shield. They are built up slowly by the accretion of thousands of highly fluid lava flows called basalt lava that spread widely over great distances, and then cool as thin, gently dipping sheets. These are the least explosive because ...
... flat, domical shape, with a profile much like that of a warrior's shield. They are built up slowly by the accretion of thousands of highly fluid lava flows called basalt lava that spread widely over great distances, and then cool as thin, gently dipping sheets. These are the least explosive because ...
Water quality of large rivers
... dominance of a westerly or northwesterly flow direction, with only three of the major rivers; ie. the Rhône, the Ebro and the Po discharging into the Mediterranean. In total, the report covers around 50 large rivers in the EEA area (the majority of rivers with a catchment area greater than 20 000 km ...
... dominance of a westerly or northwesterly flow direction, with only three of the major rivers; ie. the Rhône, the Ebro and the Po discharging into the Mediterranean. In total, the report covers around 50 large rivers in the EEA area (the majority of rivers with a catchment area greater than 20 000 km ...
Prediction of ecological consequences of a major
... of filamentous algae towards a low diatom biomass, which may affect grazing efficiency. Herbivores should dominate lower courses of rivers (Vannote et al., 1980). However, the effect of water velocity on grazing efficiency has been shown to vary from one species to another (Dewson et al., 2007). ...
... of filamentous algae towards a low diatom biomass, which may affect grazing efficiency. Herbivores should dominate lower courses of rivers (Vannote et al., 1980). However, the effect of water velocity on grazing efficiency has been shown to vary from one species to another (Dewson et al., 2007). ...
File
... • Weather and erode soft rocks Underground erosion • Causes caves to form • Underground caves collapse - Weight on top Underground • Caves near the surface • Sinkholes may open suddenly • Large holes • Found where limestone is • Usually Florida - Like water, cause land-changing process - Landslides ...
... • Weather and erode soft rocks Underground erosion • Causes caves to form • Underground caves collapse - Weight on top Underground • Caves near the surface • Sinkholes may open suddenly • Large holes • Found where limestone is • Usually Florida - Like water, cause land-changing process - Landslides ...
revision flash cards
... Explain the formation of a waterfall. Water flows over a layer of hard rock onto a layer of soft rock. This then begins to erode by hydraulic action. An overhang begins to occur and the hard rock eventually collapses due to gravity. Abrasion can now erode more and repeat the process. ...
... Explain the formation of a waterfall. Water flows over a layer of hard rock onto a layer of soft rock. This then begins to erode by hydraulic action. An overhang begins to occur and the hard rock eventually collapses due to gravity. Abrasion can now erode more and repeat the process. ...
The Drainage Basin Concept
... drainage basins. A drainage basin is the topographic region from which a stream receives runoff, throughflow, and groundwater flow. Drainage basins are divided from each other by topographic barriers called a watershed (Figure 10aa-1). A watershed represents all of the stream tributaries that flow t ...
... drainage basins. A drainage basin is the topographic region from which a stream receives runoff, throughflow, and groundwater flow. Drainage basins are divided from each other by topographic barriers called a watershed (Figure 10aa-1). A watershed represents all of the stream tributaries that flow t ...
Columbia Gorge Geology Field Trip Guide
... years ago when the near-last gasp of the Columbia River flood basalts (Pomona Member of the Saddle Mountain Basalts) poured west into the drainage. By 2 million years ago, as Cascade volcanism became the major geologic player in the area, freshly erupted ash, basalt outpourings, debris flows and flu ...
... years ago when the near-last gasp of the Columbia River flood basalts (Pomona Member of the Saddle Mountain Basalts) poured west into the drainage. By 2 million years ago, as Cascade volcanism became the major geologic player in the area, freshly erupted ash, basalt outpourings, debris flows and flu ...
File
... • Presence of thick vegetation on slopes tends to prevent landslides because the plants’ root systems hold sediment in place ...
... • Presence of thick vegetation on slopes tends to prevent landslides because the plants’ root systems hold sediment in place ...
Sacramento River Fluvial Geomorphology
... Below Red Bluff, the river flows into the Sacramento Valley. The river changes character. Tall cliffs are replaced by eroding river banks and expanses of gravelly alluvial deposits. The river channel is dynamic and restless, changing from year to year. The vegetation changes dramatically as well. Ab ...
... Below Red Bluff, the river flows into the Sacramento Valley. The river changes character. Tall cliffs are replaced by eroding river banks and expanses of gravelly alluvial deposits. The river channel is dynamic and restless, changing from year to year. The vegetation changes dramatically as well. Ab ...
Earth BootCamp_5.7B_Part 1_AC
... 13. The sides of the Grand Canyon show many different layers of rock. Which statement describes how the Grand Canyon was formed? A. The canyon has a waterfall. B. Big rainstorms washed rocks out of the canyon. C. A flowing river cut into rocks to form the canyon. D. The canyon was formed from the u ...
... 13. The sides of the Grand Canyon show many different layers of rock. Which statement describes how the Grand Canyon was formed? A. The canyon has a waterfall. B. Big rainstorms washed rocks out of the canyon. C. A flowing river cut into rocks to form the canyon. D. The canyon was formed from the u ...
Rivers of the Kimberley
... and tidal creeks. Kimberley rivers are unique because of their relatively pristine nature. Unlike rivers in many other parts of Australia and the world, most Kimberley rivers are free flowing, their riverside vegetation is relatively intact, and water is not highly extracted or contaminated. In a fe ...
... and tidal creeks. Kimberley rivers are unique because of their relatively pristine nature. Unlike rivers in many other parts of Australia and the world, most Kimberley rivers are free flowing, their riverside vegetation is relatively intact, and water is not highly extracted or contaminated. In a fe ...
Catastrophic floods in Iceland
... hot absorbing heat from either geothermal or volcanic activity (Snorrason et al, 1997). The jôkulhlaup from the Lake Grimsvôtn provides a good example. The volumes of the Lake Grimsvôtn jôkulhlaups during the period from the 1940s to the 1990s were in the range 1-3 k m (see Table 1), and the peak fl ...
... hot absorbing heat from either geothermal or volcanic activity (Snorrason et al, 1997). The jôkulhlaup from the Lake Grimsvôtn provides a good example. The volumes of the Lake Grimsvôtn jôkulhlaups during the period from the 1940s to the 1990s were in the range 1-3 k m (see Table 1), and the peak fl ...
Floodplains - Missouri Stream Team
... If a floodplain is allowed to work the way it is supposed to without alteration, the floodplain will store floodwater. This slows velocity and reduces the power of floods, therefore protecting downstream areas from flooding or erosive stream velocities. While storing this floodwater, the groundwater ...
... If a floodplain is allowed to work the way it is supposed to without alteration, the floodplain will store floodwater. This slows velocity and reduces the power of floods, therefore protecting downstream areas from flooding or erosive stream velocities. While storing this floodwater, the groundwater ...
The profile below shows the average diameter of sediment that was
... Describe the general location of the 2-mm-diameter rounded quartz grains compared to the 4-mm-diameter rounded quartz grains as they are transported and deposited downstream. ...
... Describe the general location of the 2-mm-diameter rounded quartz grains compared to the 4-mm-diameter rounded quartz grains as they are transported and deposited downstream. ...
kassu jet - free kcse past papers
... Some rivers provide water for domestic and industrial use Fresh water rivers are used for irrigation in dry areas for crop production Navigable rivers or their sections provide cheap transport routes. Some rivers are rich in fish hence are fishing grounds Some rivers have been damned to produce hydr ...
... Some rivers provide water for domestic and industrial use Fresh water rivers are used for irrigation in dry areas for crop production Navigable rivers or their sections provide cheap transport routes. Some rivers are rich in fish hence are fishing grounds Some rivers have been damned to produce hydr ...
Chapter 3
... In terms of the Ottawa’s “physical properties”, some stretches of the river possess “high turbidity” due in particular to suspended clay material. In terms of the Ottawa’s “chemical properties,” its pH is low (slightly acidic) around Lake Timiskaming. The pH increases along the course of the river, ...
... In terms of the Ottawa’s “physical properties”, some stretches of the river possess “high turbidity” due in particular to suspended clay material. In terms of the Ottawa’s “chemical properties,” its pH is low (slightly acidic) around Lake Timiskaming. The pH increases along the course of the river, ...
Erosion, transport and deposition of sediments by
... the major rivers of the world. Monthly and annual variations in sediment transport as a function of time and space have been observed. The mean annual sediment transport of the Godavari, Krishna and Cauvery have been estimated to be 170, 4 and 1.5 t x 106 respectively. The bulk of the sediment trans ...
... the major rivers of the world. Monthly and annual variations in sediment transport as a function of time and space have been observed. The mean annual sediment transport of the Godavari, Krishna and Cauvery have been estimated to be 170, 4 and 1.5 t x 106 respectively. The bulk of the sediment trans ...
TELLURIDE
... The time I went there • The time I went Telluride I saw many layers of conglomerate and limestone rock. In addition, I also saw much evidence of chemical weathering due to rust. I also saw that there was rock abrasion happening because the flat rocks, seen and felt in the river. People there had ad ...
... The time I went there • The time I went Telluride I saw many layers of conglomerate and limestone rock. In addition, I also saw much evidence of chemical weathering due to rust. I also saw that there was rock abrasion happening because the flat rocks, seen and felt in the river. People there had ad ...
Landforms Produced by Water
... As the water moves, it erodes the underlying land to form a channel, or valley. The valley of a young river is very steep and is shaped like a capital V when viewed from the side. Because water flows very quickly through young river valleys, it causes much erosion. ...
... As the water moves, it erodes the underlying land to form a channel, or valley. The valley of a young river is very steep and is shaped like a capital V when viewed from the side. Because water flows very quickly through young river valleys, it causes much erosion. ...
GEO144_final_key
... (11) 1 pt.________ rocks always originate at the surface of the solid Earth. A) Secondary B) Sedimentary C) Igneous D) Metamorphic (12) 1 pt.________ is the process by which rocks break down in place to produce soils and sediments. A) Subduction B) Lithification C) Weathering D) Metamorphism (13) 1 ...
... (11) 1 pt.________ rocks always originate at the surface of the solid Earth. A) Secondary B) Sedimentary C) Igneous D) Metamorphic (12) 1 pt.________ is the process by which rocks break down in place to produce soils and sediments. A) Subduction B) Lithification C) Weathering D) Metamorphism (13) 1 ...
Fluvial shifting in the Ucamara depression as related to the
... and symmetrical meanders of 2.5 km mean radius and 8 to 17 km amplitude (distance between two successive concave banks orthogonally to the river valley), which make the Ucayali River a caracteristic meandering river. Ratios of meander wavelengths to channel width (I&V) are between 9 and 14, the norm ...
... and symmetrical meanders of 2.5 km mean radius and 8 to 17 km amplitude (distance between two successive concave banks orthogonally to the river valley), which make the Ucayali River a caracteristic meandering river. Ratios of meander wavelengths to channel width (I&V) are between 9 and 14, the norm ...
Key Questions for Understanding Section 16.1
... mainland. They are formed as longshore bars build up until they break the surface of the water. ...
... mainland. They are formed as longshore bars build up until they break the surface of the water. ...
Erosion PPT
... Deposition is the process by which sediments (small particles of rock) are laid down in new locations. • Together, Erosion and Deposition build new ...
... Deposition is the process by which sediments (small particles of rock) are laid down in new locations. • Together, Erosion and Deposition build new ...
River
A river is a natural flowing watercourse, usually freshwater, flowing towards an ocean, sea, lake or another river. In some cases a river flows into the ground and becomes dry at the end of its course without reaching another body of water. Small rivers can be referred to using names such as stream, creek, brook, rivulet, and rill. There are no official definitions for the generic term river as applied to geographic features, although in some countries or communities a stream is defined by its size. Many names for small rivers are specific to geographic location; examples are ""run"" in some parts of the United States, ""burn"" in Scotland and northeast England, and ""beck"" in northern England. Sometimes a river is defined as being larger than a creek, but not always: the language is vague.Rivers are part of the hydrological cycle. Water generally collects in a river from precipitation through a drainage basin from surface runoff and other sources such as groundwater recharge, springs, and the release of stored water in natural ice and snowpacks (e.g. from glaciers). Potamology is the scientific study of rivers while limnology is the study of inland waters in general.Extraterrestrial rivers have recently been found on Titan. Channels may indicate past rivers on other planets, specifically outflow channels on Mars and are theorised to exist on planets and moons in habitable zones of stars.