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Students and projects
... General philosophy: I try to work with students to craft a project that best suits the student's goals and what they like to do, within the limitations of my expertise and funding. My main areas of interests are active plate margin tectonics, both ancient and modern, and I apply a number of differen ...
... General philosophy: I try to work with students to craft a project that best suits the student's goals and what they like to do, within the limitations of my expertise and funding. My main areas of interests are active plate margin tectonics, both ancient and modern, and I apply a number of differen ...
The Geology of Crowders Mountain State Park, North Carolina – A
... Rock types in the Park Geologic Maps Tell Us the Type of Rock under Our Feet. Geologic maps (as depicted in plates 1 and 2) show the distribution of rock types and unconsolidated material in an area. The different colors on a geologic map indicate various geologic units. The lines on the map indica ...
... Rock types in the Park Geologic Maps Tell Us the Type of Rock under Our Feet. Geologic maps (as depicted in plates 1 and 2) show the distribution of rock types and unconsolidated material in an area. The different colors on a geologic map indicate various geologic units. The lines on the map indica ...
Hydrocarbon basins in SE Asia: understanding why they are there
... Early Cenozoic, they are filled with Cenozoic sediments, most are rifted basins that are the product of regional extension, and they formed mainly on continental crust. Many different models have been proposed to account for their formation and age. Understanding basin development requires a better ...
... Early Cenozoic, they are filled with Cenozoic sediments, most are rifted basins that are the product of regional extension, and they formed mainly on continental crust. Many different models have been proposed to account for their formation and age. Understanding basin development requires a better ...
"Bedrock Geology of New York City: More than 600 m.y. of geologic
... period are now preserved as the Inwood Marble (Stop 2). Middle to Late Ordovician time. By Middle Ordovician time, the ocean separating North America from an exotic volcanic-arc terrane had closed. Subduction occurred eastwards, beneath this arc. This exotic terrane began to ride up over North Ameri ...
... period are now preserved as the Inwood Marble (Stop 2). Middle to Late Ordovician time. By Middle Ordovician time, the ocean separating North America from an exotic volcanic-arc terrane had closed. Subduction occurred eastwards, beneath this arc. This exotic terrane began to ride up over North Ameri ...
plate tectonics teacher guide
... In Your World piques students’ interest in plate tectonics by pointing out that the ground beneath our feet is in ...
... In Your World piques students’ interest in plate tectonics by pointing out that the ground beneath our feet is in ...
View PDF - Cengage
... of active geological upheaval are currently associated with the western United States. By contrast, the eastern margin of the continent seems relatively quiet, but this was not always the case. The New York–New Jersey metropolitan region lies on the edge of the North American continent and has exper ...
... of active geological upheaval are currently associated with the western United States. By contrast, the eastern margin of the continent seems relatively quiet, but this was not always the case. The New York–New Jersey metropolitan region lies on the edge of the North American continent and has exper ...
Metamorphism and Metamorphic Rocks
... Metamorphism Transition of one rock into another by temperatures and/or pressures unlike those in which it formed Metamorphic rocks are produced from •Igneous rocks •Sedimentary rocks •Other metamorphic rocks Metamorphism progresses incrementally from low-grade to high-grade During metamorphism ...
... Metamorphism Transition of one rock into another by temperatures and/or pressures unlike those in which it formed Metamorphic rocks are produced from •Igneous rocks •Sedimentary rocks •Other metamorphic rocks Metamorphism progresses incrementally from low-grade to high-grade During metamorphism ...
Significance of angular unconformities between
... Abstract – In this study, two angular unconformities are found and analysed for the first time in the Mesozoic–Cenozoic succession in the northwestern segment of the Zagros fold–thrust belt (ZFTB) in the Kurdistan Region. The first unconformity exists between Lower Cretaceous and Paleocene– Eocene r ...
... Abstract – In this study, two angular unconformities are found and analysed for the first time in the Mesozoic–Cenozoic succession in the northwestern segment of the Zagros fold–thrust belt (ZFTB) in the Kurdistan Region. The first unconformity exists between Lower Cretaceous and Paleocene– Eocene r ...
Inverse distance squared
... A geomorphological term to describe an erosional cliff-like feature typical of the West Australian interior. ...
... A geomorphological term to describe an erosional cliff-like feature typical of the West Australian interior. ...
The Cordilleran Ribbon Continent of North America
... accreted, exotic crust. Determining the location, geometry, nature, and evolution of the boundary between exotic and para-autochthonous North American crust has been the subject of intense debate (Cook & Erdmer 2005, Johnston 2001), and is the focus of this paper. Understanding the boundary between ...
... accreted, exotic crust. Determining the location, geometry, nature, and evolution of the boundary between exotic and para-autochthonous North American crust has been the subject of intense debate (Cook & Erdmer 2005, Johnston 2001), and is the focus of this paper. Understanding the boundary between ...
The Mogollon-Datil volcanic field, southwestern New Mexico
... welded tuffs, i.e., inflated hot pyroclastic flows of minimal viscosity, in which a matrix of incandescent glass shards had welded into hard rock. However, the degree of welding can vary, even within a single flow. As not all pyroclastic flows (also called ash flows; Smith, 1960) are welded, ignimbrite ( ...
... welded tuffs, i.e., inflated hot pyroclastic flows of minimal viscosity, in which a matrix of incandescent glass shards had welded into hard rock. However, the degree of welding can vary, even within a single flow. As not all pyroclastic flows (also called ash flows; Smith, 1960) are welded, ignimbrite ( ...
Plate Tectonics
... continent as Terranes. The geology of the Pacific Cordillera in North America is particularly complicated since about half of the Northern “Paleo-Pacific” has been subducted underneath. ...
... continent as Terranes. The geology of the Pacific Cordillera in North America is particularly complicated since about half of the Northern “Paleo-Pacific” has been subducted underneath. ...
Vancouver Geology - GAC-CS
... work in the field and laboratory, they have pieced together an intriguing history of the Earth. For geologists, periods millions of years long are distinct and comprehensible geological time intervals during which the Earth has changed its face many times. Some of the changes are slow, as in the upl ...
... work in the field and laboratory, they have pieced together an intriguing history of the Earth. For geologists, periods millions of years long are distinct and comprehensible geological time intervals during which the Earth has changed its face many times. Some of the changes are slow, as in the upl ...
Glossary of Terms - Department of Natural Resources
... CHILLED MARGIN: edge or margin of dyke or other intrusive body, where magma has cooled quickly in contact with a cold wall or country rock; crystals in the chilled margin are much smaller than those further inside the dyke. CHLORITE: a dark green mineral that falls between the mica and clay familie ...
... CHILLED MARGIN: edge or margin of dyke or other intrusive body, where magma has cooled quickly in contact with a cold wall or country rock; crystals in the chilled margin are much smaller than those further inside the dyke. CHLORITE: a dark green mineral that falls between the mica and clay familie ...
The single largest oceanic plateau: Ontong Java–Manihiki–Hikurangi
... the three plateaus, flood basalts in the East Mariana and Nauru Basins, and late stage alkalic rocks of the OJP and HP, each have comparable ages. With some allowance for portions likely lost to subduction, this submarine volcanism covered ~ 1% of the Earth’s surface. Also remarkable is the lack of ...
... the three plateaus, flood basalts in the East Mariana and Nauru Basins, and late stage alkalic rocks of the OJP and HP, each have comparable ages. With some allowance for portions likely lost to subduction, this submarine volcanism covered ~ 1% of the Earth’s surface. Also remarkable is the lack of ...
Density Difference between Subducted Oceanic Crust - SPring-8
... state for garnet and ringwoodite precisely. In spite of its high Si, Ca, Fe and Na contents, the present P-V-T equation of state for garnet shows excellent agreement with that of Mg3 Al 2 Si 3 O12 garnet [3,4]. The present equation of state for ringwoodite yields significantly higher thermal expansi ...
... state for garnet and ringwoodite precisely. In spite of its high Si, Ca, Fe and Na contents, the present P-V-T equation of state for garnet shows excellent agreement with that of Mg3 Al 2 Si 3 O12 garnet [3,4]. The present equation of state for ringwoodite yields significantly higher thermal expansi ...
Curric.sec 4 8-12
... Measurements of magnetic variations on the ocean floor have provided critical evidence for theories of continental drift and plate tectonics. When magma erupts along oceanic spreading ridges, it has high mineral content, including magnetic minerals, such as iron and magnetite that align with the Ear ...
... Measurements of magnetic variations on the ocean floor have provided critical evidence for theories of continental drift and plate tectonics. When magma erupts along oceanic spreading ridges, it has high mineral content, including magnetic minerals, such as iron and magnetite that align with the Ear ...
Rheological Effects of Shear Heating on the Earth`s Lithosphere
... Shear heating as such is widely acknowledged in the geological community based on numerous observations of frictional melts near brittle faults 7 or near grandscale ductile shear zone 8, and incorporated in two- and three-dimensional numerical models of a complexly deforming lithosphere 9-13 One-dim ...
... Shear heating as such is widely acknowledged in the geological community based on numerous observations of frictional melts near brittle faults 7 or near grandscale ductile shear zone 8, and incorporated in two- and three-dimensional numerical models of a complexly deforming lithosphere 9-13 One-dim ...
Overview: Targeted Alaska Grade Level Expectations
... Earth’s crust and the top of Earth’s mantle form a solid layer called the lithosphere. Below this layer, lies the asthenosphere, which is soft and jelly-like. The convection currents within this layer cause the lithosphere to break into plates and slide along the surface of the asthenosphere. Plate ...
... Earth’s crust and the top of Earth’s mantle form a solid layer called the lithosphere. Below this layer, lies the asthenosphere, which is soft and jelly-like. The convection currents within this layer cause the lithosphere to break into plates and slide along the surface of the asthenosphere. Plate ...
Earthquakes
... Alaska has more large earthquakes than the rest of the united states. Scientists first need to know where the faults are and how they behave in order to understand the risk that different areas of the US face. The trans-Alaska pipeline transports about 17% of the nation’s crude oil. Fault systems ca ...
... Alaska has more large earthquakes than the rest of the united states. Scientists first need to know where the faults are and how they behave in order to understand the risk that different areas of the US face. The trans-Alaska pipeline transports about 17% of the nation’s crude oil. Fault systems ca ...
plate tectonics
... mantle - The edge of the sinking plate is still colder and more dense than the mantle - As the plate sinks into the mantle, it pulls the rest of the plate behind it - Considered to be stronger ...
... mantle - The edge of the sinking plate is still colder and more dense than the mantle - As the plate sinks into the mantle, it pulls the rest of the plate behind it - Considered to be stronger ...
Presentation - Copernicus.org
... • The power spectra and the spectral characteristics of the bathymetric, topographic, and Earth’s gravity potentials (see Figs. 7 and 8). Conclusions • The approximation of the actual seawater density by its mean value yields a relative inaccuracy to about 2%. The approximation of the actual seawate ...
... • The power spectra and the spectral characteristics of the bathymetric, topographic, and Earth’s gravity potentials (see Figs. 7 and 8). Conclusions • The approximation of the actual seawater density by its mean value yields a relative inaccuracy to about 2%. The approximation of the actual seawate ...
History of geology
![](https://commons.wikimedia.org/wiki/Special:FilePath/Hutton_James_portrait_Raeburn.jpg?width=300)
The history of geology is concerned with the development of the natural science of geology. Geology is the scientific study of the origin, history, and structure of the Earth. Throughout the ages geology provides essential theories and data that shape how society conceptualizes the Earth.