Review sheet for Exam 1, Locations and Maps
... ASTR/GEOL 1070: The Earth: Its Physical Environment ...
... ASTR/GEOL 1070: The Earth: Its Physical Environment ...
Guilini Katja and Ann Vanreusel ECOLOGY OF DIFFERENT DEEP-SEA ENVIRONMENTS
... Photoautotrophs fix carbon dioxide and assimilate inorganic nutrients in the euphotic ocean layer. 10-30% of the converted carbon sinks out of the surface waters, either directly as organic particles or indirectly after being eaten by marine animals. This material undergoes microbial degradation on ...
... Photoautotrophs fix carbon dioxide and assimilate inorganic nutrients in the euphotic ocean layer. 10-30% of the converted carbon sinks out of the surface waters, either directly as organic particles or indirectly after being eaten by marine animals. This material undergoes microbial degradation on ...
The plate tectonic revolution part I.
... • Proposed transform plate boundary hypothesis in 1965 to explain linear fracture zones in oceans • Realized that motion on an oceanic transform fault is opposite to apparent offset of ridges ...
... • Proposed transform plate boundary hypothesis in 1965 to explain linear fracture zones in oceans • Realized that motion on an oceanic transform fault is opposite to apparent offset of ridges ...
Jeopardy 19,21(#2) - Heritage Collegiate
... The central geological zone of Newfoundland is known as this and was created by the remains of the Iapetus Ocean. ...
... The central geological zone of Newfoundland is known as this and was created by the remains of the Iapetus Ocean. ...
Plate Tectonics Review Worksheet
... Plate Tectonics Worksheet (Some answers may have to be researched) 1. Define Continental Drift: ...
... Plate Tectonics Worksheet (Some answers may have to be researched) 1. Define Continental Drift: ...
Vocabulary Review Summary of Key Ideas
... 12. How can a coral atoll be attached to the ocean floor when corals cannot live (or, therefore, form reefs) in the deep ocean? 13. What is the difference between an ooze and other sediments? 14. Are you more likely to find a deep-ocean trench along an active continental margin or along a passive co ...
... 12. How can a coral atoll be attached to the ocean floor when corals cannot live (or, therefore, form reefs) in the deep ocean? 13. What is the difference between an ooze and other sediments? 14. Are you more likely to find a deep-ocean trench along an active continental margin or along a passive co ...
Document
... a. organized effort to produce accurate map of the Gulf Stream b. described the relationship between coral reefs and volcanic islands c. noted that rocks found on land must have formed in the ocean since they had seashells in them d. made important observations about the chemistry of seawater ...
... a. organized effort to produce accurate map of the Gulf Stream b. described the relationship between coral reefs and volcanic islands c. noted that rocks found on land must have formed in the ocean since they had seashells in them d. made important observations about the chemistry of seawater ...
Chapter 17- Plate Tectonics
... • Early mapmakers noticed the apparent fit of continents on either side of ocean (matching coastlines) • Continental drift (Wegener)- Earth’s continents had once been joined as Pangaea ...
... • Early mapmakers noticed the apparent fit of continents on either side of ocean (matching coastlines) • Continental drift (Wegener)- Earth’s continents had once been joined as Pangaea ...
The Seafloor
... – Hot water dissolves materials as it passes through rock – Black color: finegrained metals that precipitate in “cool” ocean water – 400°C sulfurous H2O – Chemosynthesis • Bacteria feed on H2S Hydrothermal vents at a mid-ocean ridge. ...
... – Hot water dissolves materials as it passes through rock – Black color: finegrained metals that precipitate in “cool” ocean water – 400°C sulfurous H2O – Chemosynthesis • Bacteria feed on H2S Hydrothermal vents at a mid-ocean ridge. ...
Evidence after wegener: seafloor spreading and
... • prior to 1940, scientists thought the seafloor was flat ...
... • prior to 1940, scientists thought the seafloor was flat ...
Essentials of Oceanography, 10e (Trujillo/Keller)
... 38) The Mid-Atlantic Ridge is an example of a: A) convergent boundary (continent-continent). B) convergent boundary (continent-oceanic). C) convergent boundary (oceanic-oceanic). D) divergent boundary. E) transform fault boundary. 39) Which of the following is characteristic of oceanic-oceanic conv ...
... 38) The Mid-Atlantic Ridge is an example of a: A) convergent boundary (continent-continent). B) convergent boundary (continent-oceanic). C) convergent boundary (oceanic-oceanic). D) divergent boundary. E) transform fault boundary. 39) Which of the following is characteristic of oceanic-oceanic conv ...
Seafloor Spreading - Paramus Public Schools
... – Divergent Plate boundaries • Deep Sea Trenches – Narrow Elongated depression in seafloor with very steep sides – Convergent Plate boundaries ...
... – Divergent Plate boundaries • Deep Sea Trenches – Narrow Elongated depression in seafloor with very steep sides – Convergent Plate boundaries ...
Geology of the Ocean Floor and Hydrothermal Vent / Deep Sea
... 13. Describe nine lines of evidence that support the theory of seafloor spreading and continental drift. 14. Describe in detail the theory of seafloor spreading. 15. Describe the three types of plate boundaries, draw a picture of each one, and provide one location for each. 16. Describe the formatio ...
... 13. Describe nine lines of evidence that support the theory of seafloor spreading and continental drift. 14. Describe in detail the theory of seafloor spreading. 15. Describe the three types of plate boundaries, draw a picture of each one, and provide one location for each. 16. Describe the formatio ...
Abyssal1`1
... PCBs stop’s fish eggs from hatching. PCBs also poison animals, and when they get eaten the poison passes through the food chain. PCB is a organic compound with 1 to 10 chlorine atoms attached to ...
... PCBs stop’s fish eggs from hatching. PCBs also poison animals, and when they get eaten the poison passes through the food chain. PCB is a organic compound with 1 to 10 chlorine atoms attached to ...
Chapter 2 Notes - Todd S. Thuma Homepage
... 1. Abyssal plains – between continental rise & ridges a. 3700-5500 m (12-18000 ft) deep b. Flat expanse of sediment up to 5 km (3 mi) deep 1) Sediment is terrestrial or shallow-water origin 2) Masks topography of basalt basement rock 2. Seamounts (>1 km) and Abyssal hills (<1 km) a. Submerged, inact ...
... 1. Abyssal plains – between continental rise & ridges a. 3700-5500 m (12-18000 ft) deep b. Flat expanse of sediment up to 5 km (3 mi) deep 1) Sediment is terrestrial or shallow-water origin 2) Masks topography of basalt basement rock 2. Seamounts (>1 km) and Abyssal hills (<1 km) a. Submerged, inact ...
Ocean Landforms - Lisle CUSD 202
... • Seamounts are undersea volcanic mountains rising from the bottom of the sea that do not break the water's surface • Seamounts are usually isolated and cone-shaped, often volcanic in origin. ...
... • Seamounts are undersea volcanic mountains rising from the bottom of the sea that do not break the water's surface • Seamounts are usually isolated and cone-shaped, often volcanic in origin. ...
Plate Tectonics
... • As plates move apart, new crust forms Cause of movement is convection cells in mantle • Mid ocean ridges are divergent boundaries where seafloor spreading occurs – an example is the Mid-Atlantic Ridge. • Rift valleys are divergent boundaries on land – The Great Rift Valley in east Africa is an exa ...
... • As plates move apart, new crust forms Cause of movement is convection cells in mantle • Mid ocean ridges are divergent boundaries where seafloor spreading occurs – an example is the Mid-Atlantic Ridge. • Rift valleys are divergent boundaries on land – The Great Rift Valley in east Africa is an exa ...
Plate Tectonics - Teacher Background File
... telephone and cable lines laid across oceans repeatedly snapped and had to be repaired it was suggested that this might be because they were being stretched. (This led to the “Expanding Earth” theory which as since been discounted). Exploration of the ocean floor since the early 1950s gave us images ...
... telephone and cable lines laid across oceans repeatedly snapped and had to be repaired it was suggested that this might be because they were being stretched. (This led to the “Expanding Earth” theory which as since been discounted). Exploration of the ocean floor since the early 1950s gave us images ...
Study Guide: Unit ESS2-1 and ESS2
... 16. New oceanic crust and lithosphere are formed at divergent boundaries by submarine eruptions and intrusions of basaltic magma. 17. Cooler, older, oceanic lithosphere sinks into the mantle at subduction zones along convergent plate boundaries. 18. Deep ocean trenches are evidence for sinking of oc ...
... 16. New oceanic crust and lithosphere are formed at divergent boundaries by submarine eruptions and intrusions of basaltic magma. 17. Cooler, older, oceanic lithosphere sinks into the mantle at subduction zones along convergent plate boundaries. 18. Deep ocean trenches are evidence for sinking of oc ...
sea-floor spreading - Science with Ms. Flythe
... floor sinks beneath deep ocean trenches and back into mantle • As subduction occurs, crust closer to midocean ridge moves away from ridges and toward trench – Sea floor spreading and subduction work together • Move ocean floor like it’s a conveyor belt ...
... floor sinks beneath deep ocean trenches and back into mantle • As subduction occurs, crust closer to midocean ridge moves away from ridges and toward trench – Sea floor spreading and subduction work together • Move ocean floor like it’s a conveyor belt ...
OCEANIC GEOGRAPHY and the EARTH
... a. Theory #1: ocean water came from outgassing from volcanoes that spew water vapor from the mantle, which then condensed; some dissolved salts also may have come from the mantle, but they also come from weathering of rocks b. Theory #2: comets with ice constantly bombard Earth and fill up basins wi ...
... a. Theory #1: ocean water came from outgassing from volcanoes that spew water vapor from the mantle, which then condensed; some dissolved salts also may have come from the mantle, but they also come from weathering of rocks b. Theory #2: comets with ice constantly bombard Earth and fill up basins wi ...
Ocean Margins - Penn State York Home Page
... with sea level (+5 to -120 m over last 2.8 My) and marine processes (like scouring and sediment movement, especially for passive margins). Average slope is 0.2º, pretty flat! Shelf area represents 7.4% of oceans, but has some of the highest biological productivity. Max depth is 150m at shelf break. ...
... with sea level (+5 to -120 m over last 2.8 My) and marine processes (like scouring and sediment movement, especially for passive margins). Average slope is 0.2º, pretty flat! Shelf area represents 7.4% of oceans, but has some of the highest biological productivity. Max depth is 150m at shelf break. ...
Abyssal plain
An abyssal plain is an underwater plain on the deep ocean floor, usually found at depths between 3000 and 6000 m. Lying generally between the foot of a continental rise and a mid-ocean ridge, abyssal plains cover more than 50% of the Earth’s surface. They are among the flattest, smoothest and least explored regions on Earth. Abyssal plains are key geologic elements of oceanic basins (the other elements being an elevated mid-ocean ridge and flanking abyssal hills). In addition to these elements, active oceanic basins (those that are associated with a moving plate tectonic boundary) also typically include an oceanic trench and a subduction zone.Abyssal plains were not recognized as distinct physiographic features of the sea floor until the late 1940s and, until very recently, none had been studied on a systematic basis. They are poorly preserved in the sedimentary record, because they tend to be consumed by the subduction process. The creation of the abyssal plain is the end result of spreading of the seafloor (plate tectonics) and melting of the lower oceanic crust. Magma rises from above the asthenosphere (a layer of the upper mantle) and as this basaltic material reaches the surface at mid-ocean ridges it forms new oceanic crust. This is constantly pulled sideways by spreading of the seafloor. Abyssal plains result from the blanketing of an originally uneven surface of oceanic crust by fine-grained sediments, mainly clay and silt. Much of this sediment is deposited by turbidity currents that have been channelled from the continental margins along submarine canyons down into deeper water. The remainder of the sediment is composed chiefly of pelagic sediments. Metallic nodules are common in some areas of the plains, with varying concentrations of metals, including manganese, iron, nickel, cobalt, and copper. These nodules may provide a significant resource for future mining ventures.Owing in part to their vast size, abyssal plains are currently believed to be a major reservoir of biodiversity. The abyss also exerts significant influence upon ocean carbon cycling, dissolution of calcium carbonate, and atmospheric CO2 concentrations over timescales of 100–1000 years. The structure and function of abyssal ecosystems are strongly influenced by the rate of flux of food to the seafloor and the composition of the material that settles. Factors such as climate change, fishing practices, and ocean fertilization are expected to have a substantial effect on patterns of primary production in the euphotic zone. This will undoubtedly impact the flux of organic material to the abyss in a similar manner and thus have a profound effect on the structure, function and diversity of abyssal ecosystems.