Natural woNders of GeorGia
... wonders. A granite dome rising 650 feet above the Piedmont plateau, Stone Mountain is about 2 miles long and 7 miles in circumference at its base, making it the largest exposed pluton in the world. Stone Mountain is a pluton, a type of igneous intrusion. The predominantly granitic dome of Stone Moun ...
... wonders. A granite dome rising 650 feet above the Piedmont plateau, Stone Mountain is about 2 miles long and 7 miles in circumference at its base, making it the largest exposed pluton in the world. Stone Mountain is a pluton, a type of igneous intrusion. The predominantly granitic dome of Stone Moun ...
03 Structural Control mod 4b
... "In this panorama in southwestern Colorado, a stream flows from the right across an uplift (anticline) in the rocks. As soon as the stream enters the uplift, its canyon becomes deep. Note the entrenched [incised] meanders, a couple of which were cut through and abandoned when the canyon was about h ...
... "In this panorama in southwestern Colorado, a stream flows from the right across an uplift (anticline) in the rocks. As soon as the stream enters the uplift, its canyon becomes deep. Note the entrenched [incised] meanders, a couple of which were cut through and abandoned when the canyon was about h ...
Lesson 4: What is erosion?
... cause erosion. Gravity pulls glaciers down along a valley. Rocks beneath the glaciers are broken down into sediment. The glacier moves the sediment downhill. This can make the bottom of a valley more U-shaped over time. Waves are a source of erosion and deposition. Waves from storms or tides crash a ...
... cause erosion. Gravity pulls glaciers down along a valley. Rocks beneath the glaciers are broken down into sediment. The glacier moves the sediment downhill. This can make the bottom of a valley more U-shaped over time. Waves are a source of erosion and deposition. Waves from storms or tides crash a ...
Caledonia and Pine Grove Furnace State Park
... accumulate to form beds of limestone (Figure 4C). Through a natural process called diagenesis, much of this limestone was altered to dolomite. We call this presentday rock unit the Tomstown Dolomite. Later, more limestone and calcareous shale, thousands of feet thick, were deposited on top of the To ...
... accumulate to form beds of limestone (Figure 4C). Through a natural process called diagenesis, much of this limestone was altered to dolomite. We call this presentday rock unit the Tomstown Dolomite. Later, more limestone and calcareous shale, thousands of feet thick, were deposited on top of the To ...
Chapter 12 - Faculty Server Contact
... Contacts: planar or irregular surfaces that separate different ...
... Contacts: planar or irregular surfaces that separate different ...
GEOLOGY OF NEVADA
... much as it is today. This younger tuff lapped up against of the ranges and in places flowed into valleys that are the sites of present-day streams. Strike-slip faults are locally a major feature of the late Cenozoic tectonic framework of Nevada. The most conspicuous group of these faults are northw ...
... much as it is today. This younger tuff lapped up against of the ranges and in places flowed into valleys that are the sites of present-day streams. Strike-slip faults are locally a major feature of the late Cenozoic tectonic framework of Nevada. The most conspicuous group of these faults are northw ...
CHAPTER 2 - earthjay science
... D. Basin and Range Province: Nevada-Utah to Mexico 1. Structural history a. Mesozoic over-thrusting b. Paleogene regional arch c. Miocene-Holocene arch subsidence and normal faulting: northsouth trending fault-block mountains (horsts and grabens) developed by tensional forces 2. Causes of structural ...
... D. Basin and Range Province: Nevada-Utah to Mexico 1. Structural history a. Mesozoic over-thrusting b. Paleogene regional arch c. Miocene-Holocene arch subsidence and normal faulting: northsouth trending fault-block mountains (horsts and grabens) developed by tensional forces 2. Causes of structural ...
Quiz 13 on Chapters 13-15 Notes to Landforms, Internal Processes
... Note to Question 4: The mid-Atlantic ridge is a rift or divergence zone where new crustal material is being formed, causing adjacent continents to be pushed away from each other. Subduction is an opposite process wherein two plates collide, with the heavier side sliding underneath the other (subduct ...
... Note to Question 4: The mid-Atlantic ridge is a rift or divergence zone where new crustal material is being formed, causing adjacent continents to be pushed away from each other. Subduction is an opposite process wherein two plates collide, with the heavier side sliding underneath the other (subduct ...
Earth History
... • William Smith (late l700’s) noted that rock layers in widely separated areas could be identified and correlated by their distinctive fossil content • This led to the "principle of fossil succession“ • Fossils succeed one another in a definite and determinable order, and therefore any time period c ...
... • William Smith (late l700’s) noted that rock layers in widely separated areas could be identified and correlated by their distinctive fossil content • This led to the "principle of fossil succession“ • Fossils succeed one another in a definite and determinable order, and therefore any time period c ...
geologic history 2
... • William Smith (late l700’s) noted that rock layers in widely separated areas could be identified and correlated by their distinctive fossil content • This led to the "principle of fossil succession“ • Fossils succeed one another in a definite and determinable order, and therefore any time period c ...
... • William Smith (late l700’s) noted that rock layers in widely separated areas could be identified and correlated by their distinctive fossil content • This led to the "principle of fossil succession“ • Fossils succeed one another in a definite and determinable order, and therefore any time period c ...
Geologic History
... • William Smith (late l700’s) noted that rock layers in widely separated areas could be identified and correlated by their distinctive fossil content • This led to the "principle of fossil succession“ • Fossils succeed one another in a definite and determinable order, and therefore any time period c ...
... • William Smith (late l700’s) noted that rock layers in widely separated areas could be identified and correlated by their distinctive fossil content • This led to the "principle of fossil succession“ • Fossils succeed one another in a definite and determinable order, and therefore any time period c ...
Geology of Peoria and Tazewell Counties
... Precambrian Era Through several billion years of geologic time, the surrounding Tazewell and Peoria counties has undergone many changes (see the rock succession column, facing page). The oldest rocks beneath the field trip area belong to the ancient Precambrian basement complex. We know relatively l ...
... Precambrian Era Through several billion years of geologic time, the surrounding Tazewell and Peoria counties has undergone many changes (see the rock succession column, facing page). The oldest rocks beneath the field trip area belong to the ancient Precambrian basement complex. We know relatively l ...
the White-Inyo field-trip guidebook
... I-238 turns into I-580 (37.2 mi), so continue east on I-580 past Livermore and over Altamont Pass and a wind turbine farm to I-205 eastbound (66.0 mi), continuing to join with CA-120 (81.1 mi), a short stretch on I-5 (but stay on CA-120) to U. S. 99 northbound (87.2 mi), then quickly off at CA-108/C ...
... I-238 turns into I-580 (37.2 mi), so continue east on I-580 past Livermore and over Altamont Pass and a wind turbine farm to I-205 eastbound (66.0 mi), continuing to join with CA-120 (81.1 mi), a short stretch on I-5 (but stay on CA-120) to U. S. 99 northbound (87.2 mi), then quickly off at CA-108/C ...
tertiary rocks - Geologic Trips
... Mehrten Formation During Miocene time, volcanic material continued to be ejected from volcanic centers along the crest of the Sierra. Eventually, the central and northern Sierra Nevada was covered with a thick blanket of andesitic volcanic rocks known as the Mehrten Formation. These rocks include an ...
... Mehrten Formation During Miocene time, volcanic material continued to be ejected from volcanic centers along the crest of the Sierra. Eventually, the central and northern Sierra Nevada was covered with a thick blanket of andesitic volcanic rocks known as the Mehrten Formation. These rocks include an ...
1 Sedimentary Facies and Structures 10-13
... 4. siliceous sediment or chert 5. red clay with mn-nodules Reflects the gradual subsidence of the originally hot, buoyant ocean crust into deeper water where carbonates are dissolved Ocean-Continent 1. Volcanoclastics, lithic sandstone and greywacke in trench, accretionary wedge and fore-arc basins ...
... 4. siliceous sediment or chert 5. red clay with mn-nodules Reflects the gradual subsidence of the originally hot, buoyant ocean crust into deeper water where carbonates are dissolved Ocean-Continent 1. Volcanoclastics, lithic sandstone and greywacke in trench, accretionary wedge and fore-arc basins ...
GLS100Lab_FR_Geology
... More recently (within the last 2 million years) glaciers flowed across the area scouring and shaping the already deeply eroded landscape. The abundant exposed surfaces are a by-product of glaciation. During the Pleistocene (Ice Age), glaciers advanced over New England at least twice. Beyond the glac ...
... More recently (within the last 2 million years) glaciers flowed across the area scouring and shaping the already deeply eroded landscape. The abundant exposed surfaces are a by-product of glaciation. During the Pleistocene (Ice Age), glaciers advanced over New England at least twice. Beyond the glac ...
Effects of Glaciers - Salem State University
... More recently (within the last 2 million years) glaciers flowed across the area scouring and shaping the already deeply eroded landscape. The abundant exposed surfaces are a by-product of glaciation. During the Pleistocene (Ice Age), glaciers advanced over New England at least twice. Beyond the glac ...
... More recently (within the last 2 million years) glaciers flowed across the area scouring and shaping the already deeply eroded landscape. The abundant exposed surfaces are a by-product of glaciation. During the Pleistocene (Ice Age), glaciers advanced over New England at least twice. Beyond the glac ...
Relative Dating - Cloudfront.net
... rock must be younger than the rock a. Igneous intrusion - is younger than rock it has intruded (cut across). Pre-existing rock ...
... rock must be younger than the rock a. Igneous intrusion - is younger than rock it has intruded (cut across). Pre-existing rock ...
The Process of Erosion and Deposition of Sediments Power Point
... • Huge U-shaped valleys are cause by continental glaciers. ...
... • Huge U-shaped valleys are cause by continental glaciers. ...
G6 U9 Erosion and Deposition Cscope ppt
... • Huge U-shaped valleys are cause by continental glaciers. ...
... • Huge U-shaped valleys are cause by continental glaciers. ...
Stratigraphic Principles
... • Fragments of a rock unit (xenolith meaning foreign rock) which are included in another (host) rock unit must be older than the host rock. This may occur in sedimentary environments, where pieces of preexisting rock can be ripped up and included in younger sediments. Alternatively, when igneous ro ...
... • Fragments of a rock unit (xenolith meaning foreign rock) which are included in another (host) rock unit must be older than the host rock. This may occur in sedimentary environments, where pieces of preexisting rock can be ripped up and included in younger sediments. Alternatively, when igneous ro ...
Landforms
... The Andes Mountains began forming during the Jurrasic period (~200 mya) when plate tectonics forced the oceanic Nazca plate to subduct beneath the continental South American plate. The subduction zone between the plate margins marks the Peru-Chile ocean trench which is 26,500 ft (8,065 meters) below ...
... The Andes Mountains began forming during the Jurrasic period (~200 mya) when plate tectonics forced the oceanic Nazca plate to subduct beneath the continental South American plate. The subduction zone between the plate margins marks the Peru-Chile ocean trench which is 26,500 ft (8,065 meters) below ...
Weathering Erosion Deposition Landscapes Stuff to Know
... • Continental glaciers covered major portions of the continents during ice ages. • Now we have the remnants of the last ice age over Antarctica and Greenland in the form of sheets of continental ice. • Continental glaciers melt they leave evidence behind on the land that they once covered. These fea ...
... • Continental glaciers covered major portions of the continents during ice ages. • Now we have the remnants of the last ice age over Antarctica and Greenland in the form of sheets of continental ice. • Continental glaciers melt they leave evidence behind on the land that they once covered. These fea ...
Provinces of Virginia Presentation
... More resistant outcrops are seen nearer the Blue Ridge Scattered old volcanic arcs, faults & intrusions ...
... More resistant outcrops are seen nearer the Blue Ridge Scattered old volcanic arcs, faults & intrusions ...
Geology of the Death Valley area
The exposed geology of the Death Valley area presents a diverse and complex set of at least 23 formations of sedimentary units, two major gaps in the geologic record called unconformities, and at least one distinct set of related formations geologists call a group. The oldest rocks in the area that now includes Death Valley National Park are extensively metamorphosed by intense heat and pressure and are at least 1700 million years old. These rocks were intruded by a mass of granite 1400 Ma (million years ago) and later uplifted and exposed to nearly 500 million years of erosion.Marine deposition occurred 1200 to 800 Ma, creating thick sequences of conglomerate, mudstone, and carbonate rock topped by stromatolites, and possibly glacial deposits from the hypothesized Snowball Earth event. Rifting thinned huge roughly linear parts of the supercontinent Rodinia enough to allow sea water to invade and divide its landmass into component continents separated by narrow straits. A passive margin developed on the edges of these new seas in the Death Valley region. Carbonate banks formed on this part of the two margins only to be subsided as the continental crust thinned until it broke, giving birth to a new ocean basin. An accretion wedge of clastic sediment then started to accumulate at the base of the submerged precipice, entombing the region's first known fossils of complex life. These sandy mudflats gave way about 550 Ma to a carbonate platform which lasted for the next 300 million years of Paleozoic time.The passive margin switched to active margin in the early-to-mid Mesozoic when the Farallon Plate under the Pacific Ocean started to dive below the North American Plate, creating a subduction zone; volcanoes and uplifting mountains were created as a result. Erosion over many millions of years created a relatively featureless plain. Stretching of the crust under western North America started around 16 Ma and is thought to be caused by upwelling from the subducted spreading-zone of the Farallon Plate. This process continues into the present and is thought to be responsible for creating the Basin and Range province. By 2 to 3 million years ago this province had spread to the Death Valley area, ripping it apart and creating Death Valley, Panamint Valley and surrounding ranges. These valleys partially filled with sediment and, during colder periods during the current ice age, with lakes. Lake Manly was the largest of these lakes; it filled Death Valley during each glacial period from 240,000 years ago to 10,000 years ago. By 10,500 years ago these lakes were increasingly cut off from glacial melt from the Sierra Nevada, starving them of water and concentrating salts and minerals. The desert environment seen today developed after these lakes dried up.