Plate Boundaries - Clinton Public Schools
... • As they collide, the less dense • Characteristics: continental plate overrides the – Coastal Mountain Ranges oceanic plate. – Continental Volcanic Arcs – Oceanic plate is forced down; temperature increases; plate becomes magma in convection current ...
... • As they collide, the less dense • Characteristics: continental plate overrides the – Coastal Mountain Ranges oceanic plate. – Continental Volcanic Arcs – Oceanic plate is forced down; temperature increases; plate becomes magma in convection current ...
Environments Through Time - NagleEarthandEnvironmental
... How do they form? Several models are proposed but they all have 2 main features 1. Photosynthetic cyanobacteria produced oxygen and oxygenated the upper layers of the ocean. This oxygen caused precipitation of soluble iron into iron oxide 2. 2 early Proterozoic oceans contained vast amounts of diss ...
... How do they form? Several models are proposed but they all have 2 main features 1. Photosynthetic cyanobacteria produced oxygen and oxygenated the upper layers of the ocean. This oxygen caused precipitation of soluble iron into iron oxide 2. 2 early Proterozoic oceans contained vast amounts of diss ...
Plate Tectonics Vocabulary Continental Drift The
... The preserved remains or traces of living things The undersea mountain chain where new ocean floor is produced The name of the single landmass that broke apart 225 million years ago A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crus ...
... The preserved remains or traces of living things The undersea mountain chain where new ocean floor is produced The name of the single landmass that broke apart 225 million years ago A section of the lithosphere that slowly moves over the asthenosphere, carrying pieces of continental and oceanic crus ...
Introduction to Structural Geology
... *Greenstone - mafic to silicic volcanic rocks and shallow intrusive bodies Sutures-regions of deformed oceanic material thought to be remnants of disappeared oceans Structural features of Archean Terranes -highly deformed and display more than 1 generation of folds -contacts between gneissic and gre ...
... *Greenstone - mafic to silicic volcanic rocks and shallow intrusive bodies Sutures-regions of deformed oceanic material thought to be remnants of disappeared oceans Structural features of Archean Terranes -highly deformed and display more than 1 generation of folds -contacts between gneissic and gre ...
Provincial Exam Review: Earth Science Natural Causes of Climate
... Natural Causes of Climate Change 1. What is meant by the term “climate”? 2. List three kinds of evidence that can be used to study climate changes that have occurred in the past. 3. What is the natural greenhouse effect? 4. How much cooler would Earth be on average without the natural greenhouse eff ...
... Natural Causes of Climate Change 1. What is meant by the term “climate”? 2. List three kinds of evidence that can be used to study climate changes that have occurred in the past. 3. What is the natural greenhouse effect? 4. How much cooler would Earth be on average without the natural greenhouse eff ...
formative assessment questions
... a. Transfers heat energy thus playing a major role in regional and global climates b. Transfers nutrients from the bottom of the ocean floor c. Transfer land from one place to another through the process of erosion d. Serves little purpose but creates wonderful surfing areas ...
... a. Transfers heat energy thus playing a major role in regional and global climates b. Transfers nutrients from the bottom of the ocean floor c. Transfer land from one place to another through the process of erosion d. Serves little purpose but creates wonderful surfing areas ...
Primary productivity
... • Sunlight strong enough to support photosynthesis occurs only to a depth of 100 meters (euphotic zone) Locations of maximum photosynthetic productivity • Margins of the oceans – Abundant supply of nutrients from land – Water shallow enough for light to penetrate all the way to the sea floor • Upwel ...
... • Sunlight strong enough to support photosynthesis occurs only to a depth of 100 meters (euphotic zone) Locations of maximum photosynthetic productivity • Margins of the oceans – Abundant supply of nutrients from land – Water shallow enough for light to penetrate all the way to the sea floor • Upwel ...
GEOL 4110 Advanced Earth Science For Teachers Jim Miller
... Advanced Earth Science For Teachers ...
... Advanced Earth Science For Teachers ...
ES 5-4 HW ss Sea Flr 12
... curve along the sea floor, extending into all of Earth’s oceans. Most of the mountains in the mid-ocean ridges lie hidden under hundreds of meters of water. A steep-sided valley splits the top of some mid-ocean ridges. Earth’s ocean floors move like conveyor belts, carrying the continents along with ...
... curve along the sea floor, extending into all of Earth’s oceans. Most of the mountains in the mid-ocean ridges lie hidden under hundreds of meters of water. A steep-sided valley splits the top of some mid-ocean ridges. Earth’s ocean floors move like conveyor belts, carrying the continents along with ...
El Nino - La Nina
... region and identified and named the Southern Oscillation which we now recognize as a pattern of interannual variability in the tropical ocean and atmosphere that causes El Nino. The subsiding air of the Walker circulation occurs in the eastern Pacific, and feeds into the Trade winds. ...
... region and identified and named the Southern Oscillation which we now recognize as a pattern of interannual variability in the tropical ocean and atmosphere that causes El Nino. The subsiding air of the Walker circulation occurs in the eastern Pacific, and feeds into the Trade winds. ...
Mass Extinctions
... • On land a total breakdown of terrestrial ecosystems occurred. Most vertebrate and plant groups went extinct. • The Earth came close to a pre-Ediacaran (Late Proterozoic) state – i.e., being nearly devoid of multicellular animal and plant life. • Cause(s) of the extinction are not totally known, bu ...
... • On land a total breakdown of terrestrial ecosystems occurred. Most vertebrate and plant groups went extinct. • The Earth came close to a pre-Ediacaran (Late Proterozoic) state – i.e., being nearly devoid of multicellular animal and plant life. • Cause(s) of the extinction are not totally known, bu ...
Chapter 10 Worksheet
... i. A broad area of continental crust that has been thinned and overlain by marine sediments. j. Formed by bending down of a slab as it enters a subduction zone. ...
... i. A broad area of continental crust that has been thinned and overlain by marine sediments. j. Formed by bending down of a slab as it enters a subduction zone. ...
Plate Tectonics - Galena Park ISD Moodle
... The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. The worlds deepest parts of the ocean are found along ...
... The subducting plate is bent downward to form a very deep depression in the ocean floor called a trench. The worlds deepest parts of the ocean are found along ...
Week 21: Plate Tectonics
... Spreading theories led to the current Plate Tectonic Theory a. If new ocean floor is being created at the Mid-Ocean Ridges as Harry Hess suggested, and the Earth isn’t getting any larger, then somewhere in the world old ocean crust must be getting destroyed SUBDUCTION. b. The mid-ocean ridges are ...
... Spreading theories led to the current Plate Tectonic Theory a. If new ocean floor is being created at the Mid-Ocean Ridges as Harry Hess suggested, and the Earth isn’t getting any larger, then somewhere in the world old ocean crust must be getting destroyed SUBDUCTION. b. The mid-ocean ridges are ...
The Hadean Outline •Theories on Formation of Solar System, Universe
... Life in the Archean •Rich in spreading centers/subduction zones •Mid-ocean ridges –Anoxic environment –Amino acids organize into more complex genetic, organic materials •Have no fossil record from Archean hydrothermal vents –Only in younger strata/modern MOR environments –Both formed in chemically d ...
... Life in the Archean •Rich in spreading centers/subduction zones •Mid-ocean ridges –Anoxic environment –Amino acids organize into more complex genetic, organic materials •Have no fossil record from Archean hydrothermal vents –Only in younger strata/modern MOR environments –Both formed in chemically d ...
Characteristics of the Marine Environment
... Gaseous form – present in free or easily exchangeable forms e.g. N2, CO2 (or H2CO3) Dissolved (solution) form – present in seawater and pass through 0.4 or 0.45 m filter paper Particulate form – retained in solid form on the filter paper The size limit is subject to definitions depending on the iss ...
... Gaseous form – present in free or easily exchangeable forms e.g. N2, CO2 (or H2CO3) Dissolved (solution) form – present in seawater and pass through 0.4 or 0.45 m filter paper Particulate form – retained in solid form on the filter paper The size limit is subject to definitions depending on the iss ...
Appalachian Mountain Building
... Most orogenic belts are associated with plate boundaries. The greatest variety and the tallest of these belts Are found at convergent Boundaries. ...
... Most orogenic belts are associated with plate boundaries. The greatest variety and the tallest of these belts Are found at convergent Boundaries. ...
Chapter 8 Review
... • We don’t know a lot about the ocean but we know that the ocean helps support the Earths biodiversity. Ocean organisms are mainly found in the coastal zones, open ocean, or the ocean bottom. • The coastal zone is the warm, nutrient rich, shallow water that extends from the high tide mark on land to ...
... • We don’t know a lot about the ocean but we know that the ocean helps support the Earths biodiversity. Ocean organisms are mainly found in the coastal zones, open ocean, or the ocean bottom. • The coastal zone is the warm, nutrient rich, shallow water that extends from the high tide mark on land to ...
Plate tectonics - pams
... Glossopteris’ fossils (extinct plant) located in rocks about 250 million years old in South Africa, Australia, India and Antarctica. Seeds were too large to have been carried by wind and too fragile to have survived a trip by ocean waves. ...
... Glossopteris’ fossils (extinct plant) located in rocks about 250 million years old in South Africa, Australia, India and Antarctica. Seeds were too large to have been carried by wind and too fragile to have survived a trip by ocean waves. ...
Continental Drift
... lithosphere, called plates, move and change shape Study of formation of features in Earth’s crust ...
... lithosphere, called plates, move and change shape Study of formation of features in Earth’s crust ...
Sea Floor Mapping Lesson Plan Part 2
... Sonar systems send sound waves from the bottom of a ship to the bottom of the sea. These sound waves bounce off the sea floor and back up to the ship. SONAR stands for SOund NAvigation and Ranging. Two types of mapping the ocean floor are single-beam sonar and mult-beam sonar. Single-beam sonar hav ...
... Sonar systems send sound waves from the bottom of a ship to the bottom of the sea. These sound waves bounce off the sea floor and back up to the ship. SONAR stands for SOund NAvigation and Ranging. Two types of mapping the ocean floor are single-beam sonar and mult-beam sonar. Single-beam sonar hav ...
SOL Review
... convergent boundary (currently active) California: transform boundary (currently active) New Madrid, MO: divergent boundary (very active between 100 and 200 years ago) Appalachian System: convergent boundary between Africa and N. America (very active billions of years ago) Iceland: divergent (curren ...
... convergent boundary (currently active) California: transform boundary (currently active) New Madrid, MO: divergent boundary (very active between 100 and 200 years ago) Appalachian System: convergent boundary between Africa and N. America (very active billions of years ago) Iceland: divergent (curren ...
Anoxic event
Oceanic anoxic events or anoxic events (Anoxia conditions) refer to intervals in the Earth's past where portions of oceans become depleted in oxygen (O2) at depths over a large geographic area. During some of these events, euxinia develops - euxinia refers to anoxic waters that contain H2S hydrogen sulfide. Although anoxic events have not happened for millions of years, the geological record shows that they happened many times in the past. Anoxic events coincide with several mass extinctions and may contribute to these events. These mass extinctions include some that geobiologists use as time markers in biostratigraphic dating. It is believed oceanic anoxic events are strongly linked to slowing of ocean circulation, climatic warming and elevated levels of greenhouse gases. Enhanced volcanism (through the release of CO2 and other greenhouse gases) is the proposed central external trigger for the development of these events.